./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext-properties/simple-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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_6ccee79b-8c55-4db5-9234-50fc4e6fab61/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/simple-ext.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1c4f57eca82444dbac59d6fae1e4e6e28bb6c95 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:00:36,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:36,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:36,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:36,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:36,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:36,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:36,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:36,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:36,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:36,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:36,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:36,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:36,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:36,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:36,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:36,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:36,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:36,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:36,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:36,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:36,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:36,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:36,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:36,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:36,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:36,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:36,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:36,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:36,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:36,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:36,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:36,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:36,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:36,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:36,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:36,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:36,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:36,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:36,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:36,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:36,497 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-10-22 09:00:36,511 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:36,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:36,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:36,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:36,512 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:36,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:36,512 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:36,513 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:36,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:36,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:36,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:36,513 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:00:36,513 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:00:36,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:36,514 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:36,514 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:36,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:36,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:36,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:36,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:36,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:36,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:36,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:36,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:36,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:36,525 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_6ccee79b-8c55-4db5-9234-50fc4e6fab61/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-memcleanup) ) 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 -> e1c4f57eca82444dbac59d6fae1e4e6e28bb6c95 [2019-10-22 09:00:36,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:36,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:36,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:36,575 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:36,575 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:36,576 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/simple-ext.i [2019-10-22 09:00:36,626 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/bin/uautomizer/data/77b79bba6/7574a9e7f9174a89bb37fedb1b256b7e/FLAGdfba74bbc [2019-10-22 09:00:37,067 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:37,068 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/sv-benchmarks/c/list-ext-properties/simple-ext.i [2019-10-22 09:00:37,080 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/bin/uautomizer/data/77b79bba6/7574a9e7f9174a89bb37fedb1b256b7e/FLAGdfba74bbc [2019-10-22 09:00:37,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/bin/uautomizer/data/77b79bba6/7574a9e7f9174a89bb37fedb1b256b7e [2019-10-22 09:00:37,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:37,097 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:00:37,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:37,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:37,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:37,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42348576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37, skipping insertion in model container [2019-10-22 09:00:37,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,112 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:37,143 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:37,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:37,438 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:37,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:37,542 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:37,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37 WrapperNode [2019-10-22 09:00:37,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:37,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:37,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:37,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:37,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... [2019-10-22 09:00:37,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:37,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:37,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:37,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:37,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/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 09:00:37,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:00:37,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:37,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 09:00:37,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 09:00:37,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 09:00:37,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 09:00:37,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 09:00:37,659 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-22 09:00:37,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:00:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 09:00:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 09:00:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:00:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:00:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:00:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:00:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:00:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:00:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:00:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:00:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:00:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:00:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:00:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:00:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:00:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:00:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:00:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:00:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 09:00:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 09:00:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 09:00:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 09:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 09:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:00:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:00:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:00:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:00:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:00:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:00:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:00:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:00:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:00:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:00:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:00:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:00:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:00:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:00:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:00:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:00:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:00:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:00:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:00:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:00:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:00:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:00:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:00:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:00:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:00:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:00:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:00:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:00:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:00:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:00:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:00:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:00:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:00:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:00:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:00:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:00:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:00:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:00:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:00:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:00:37,670 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:00:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:00:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:00:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:00:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:00:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:00:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:00:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:00:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:00:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:00:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:00:37,671 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:00:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:00:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:00:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:00:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:00:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:00:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:00:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:00:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:00:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:00:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:00:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:00:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:00:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:00:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:00:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:00:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:00:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:00:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:00:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-22 09:00:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:00:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:00:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:00:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 09:00:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 09:00:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:00:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:00:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:38,016 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-22 09:00:38,203 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:38,203 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-22 09:00:38,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:38 BoogieIcfgContainer [2019-10-22 09:00:38,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:38,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:38,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:38,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:38,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:37" (1/3) ... [2019-10-22 09:00:38,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcd02d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:38, skipping insertion in model container [2019-10-22 09:00:38,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:37" (2/3) ... [2019-10-22 09:00:38,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcd02d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:38, skipping insertion in model container [2019-10-22 09:00:38,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:38" (3/3) ... [2019-10-22 09:00:38,214 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2019-10-22 09:00:38,223 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:38,232 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-10-22 09:00:38,242 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-10-22 09:00:38,263 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:38,263 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:00:38,264 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:38,264 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:38,264 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:38,265 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:38,265 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:38,265 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:38,281 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2019-10-22 09:00:38,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:00:38,298 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:38,299 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:38,300 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2019-10-22 09:00:38,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:38,307 INFO L82 PathProgramCache]: Analyzing trace with hash -746638641, now seen corresponding path program 1 times [2019-10-22 09:00:38,316 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:38,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145515069] [2019-10-22 09:00:38,317 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:38,317 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:38,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:38,452 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 09:00:38,452 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145515069] [2019-10-22 09:00:38,453 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:38,453 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:38,454 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90310675] [2019-10-22 09:00:38,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:00:38,458 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:38,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:00:38,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:38,473 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2019-10-22 09:00:38,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:38,604 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2019-10-22 09:00:38,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:00:38,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-22 09:00:38,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:38,613 INFO L225 Difference]: With dead ends: 62 [2019-10-22 09:00:38,613 INFO L226 Difference]: Without dead ends: 54 [2019-10-22 09:00:38,615 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:00:38,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-22 09:00:38,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-10-22 09:00:38,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-22 09:00:38,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2019-10-22 09:00:38,646 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 10 [2019-10-22 09:00:38,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:38,647 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2019-10-22 09:00:38,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:00:38,647 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2019-10-22 09:00:38,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 09:00:38,647 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:38,648 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:38,648 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2019-10-22 09:00:38,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:38,648 INFO L82 PathProgramCache]: Analyzing trace with hash -261147736, now seen corresponding path program 1 times [2019-10-22 09:00:38,649 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:38,649 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951394579] [2019-10-22 09:00:38,649 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:38,649 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:38,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:38,781 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 09:00:38,781 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951394579] [2019-10-22 09:00:38,781 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:38,781 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:38,782 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529647059] [2019-10-22 09:00:38,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:38,783 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:38,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:38,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:38,784 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 5 states. [2019-10-22 09:00:39,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:39,061 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2019-10-22 09:00:39,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:39,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-22 09:00:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:39,063 INFO L225 Difference]: With dead ends: 72 [2019-10-22 09:00:39,063 INFO L226 Difference]: Without dead ends: 72 [2019-10-22 09:00:39,063 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-22 09:00:39,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 58. [2019-10-22 09:00:39,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-10-22 09:00:39,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2019-10-22 09:00:39,078 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 12 [2019-10-22 09:00:39,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:39,078 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2019-10-22 09:00:39,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:39,078 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2019-10-22 09:00:39,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 09:00:39,079 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:39,079 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:39,079 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2019-10-22 09:00:39,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:39,079 INFO L82 PathProgramCache]: Analyzing trace with hash -261147735, now seen corresponding path program 1 times [2019-10-22 09:00:39,080 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:39,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538641741] [2019-10-22 09:00:39,080 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:39,080 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:39,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:39,177 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 09:00:39,178 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538641741] [2019-10-22 09:00:39,178 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:39,178 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:39,178 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944326089] [2019-10-22 09:00:39,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:39,179 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:39,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:39,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:39,179 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 5 states. [2019-10-22 09:00:39,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:39,335 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2019-10-22 09:00:39,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:00:39,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-22 09:00:39,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:39,337 INFO L225 Difference]: With dead ends: 77 [2019-10-22 09:00:39,337 INFO L226 Difference]: Without dead ends: 77 [2019-10-22 09:00:39,338 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:39,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-10-22 09:00:39,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2019-10-22 09:00:39,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-10-22 09:00:39,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2019-10-22 09:00:39,346 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 12 [2019-10-22 09:00:39,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:39,347 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2019-10-22 09:00:39,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:39,347 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2019-10-22 09:00:39,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:00:39,347 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:39,348 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:39,348 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2019-10-22 09:00:39,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:39,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1733653831, now seen corresponding path program 1 times [2019-10-22 09:00:39,348 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:39,349 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805044248] [2019-10-22 09:00:39,349 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:39,349 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:39,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:39,450 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 09:00:39,451 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805044248] [2019-10-22 09:00:39,451 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:39,451 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:00:39,451 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138891000] [2019-10-22 09:00:39,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:00:39,452 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:39,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:00:39,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:00:39,453 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 5 states. [2019-10-22 09:00:39,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:39,594 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions. [2019-10-22 09:00:39,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:00:39,595 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-10-22 09:00:39,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:39,596 INFO L225 Difference]: With dead ends: 73 [2019-10-22 09:00:39,596 INFO L226 Difference]: Without dead ends: 73 [2019-10-22 09:00:39,596 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 09:00:39,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-10-22 09:00:39,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 67. [2019-10-22 09:00:39,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-10-22 09:00:39,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2019-10-22 09:00:39,605 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 19 [2019-10-22 09:00:39,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:39,605 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2019-10-22 09:00:39,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:00:39,606 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2019-10-22 09:00:39,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 09:00:39,606 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:39,606 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] [2019-10-22 09:00:39,607 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2019-10-22 09:00:39,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:39,607 INFO L82 PathProgramCache]: Analyzing trace with hash 838007822, now seen corresponding path program 1 times [2019-10-22 09:00:39,607 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:39,607 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249254781] [2019-10-22 09:00:39,608 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:39,608 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:39,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:39,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:39,752 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249254781] [2019-10-22 09:00:39,752 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:39,752 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 09:00:39,752 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711990164] [2019-10-22 09:00:39,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:00:39,753 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:39,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:00:39,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:39,754 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 8 states. [2019-10-22 09:00:39,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:39,984 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2019-10-22 09:00:39,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:00:39,985 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2019-10-22 09:00:39,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:39,986 INFO L225 Difference]: With dead ends: 82 [2019-10-22 09:00:39,986 INFO L226 Difference]: Without dead ends: 76 [2019-10-22 09:00:39,986 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:39,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-10-22 09:00:39,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 65. [2019-10-22 09:00:39,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-10-22 09:00:39,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2019-10-22 09:00:39,994 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 21 [2019-10-22 09:00:39,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:39,995 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2019-10-22 09:00:39,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:00:39,995 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2019-10-22 09:00:39,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 09:00:39,996 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:39,996 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:39,996 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2019-10-22 09:00:39,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:39,996 INFO L82 PathProgramCache]: Analyzing trace with hash -2032942662, now seen corresponding path program 1 times [2019-10-22 09:00:39,997 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:39,997 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104510615] [2019-10-22 09:00:39,997 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:39,997 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:39,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:40,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:40,110 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104510615] [2019-10-22 09:00:40,111 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:40,111 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:00:40,111 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592026881] [2019-10-22 09:00:40,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:00:40,111 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:40,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:00:40,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:00:40,112 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 7 states. [2019-10-22 09:00:40,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:40,256 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2019-10-22 09:00:40,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:00:40,257 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-10-22 09:00:40,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:40,257 INFO L225 Difference]: With dead ends: 66 [2019-10-22 09:00:40,258 INFO L226 Difference]: Without dead ends: 66 [2019-10-22 09:00:40,258 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:00:40,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-10-22 09:00:40,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2019-10-22 09:00:40,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-10-22 09:00:40,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2019-10-22 09:00:40,263 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 21 [2019-10-22 09:00:40,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:40,264 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2019-10-22 09:00:40,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:00:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2019-10-22 09:00:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 09:00:40,265 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:40,265 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:40,265 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2019-10-22 09:00:40,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:40,266 INFO L82 PathProgramCache]: Analyzing trace with hash -2032942661, now seen corresponding path program 1 times [2019-10-22 09:00:40,266 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:40,266 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377774378] [2019-10-22 09:00:40,266 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:40,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:40,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:40,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:40,383 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377774378] [2019-10-22 09:00:40,383 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:40,383 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:00:40,384 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687131439] [2019-10-22 09:00:40,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:00:40,384 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:40,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:00:40,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:00:40,385 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 7 states. [2019-10-22 09:00:40,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:40,642 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2019-10-22 09:00:40,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 09:00:40,643 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-10-22 09:00:40,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:40,644 INFO L225 Difference]: With dead ends: 59 [2019-10-22 09:00:40,644 INFO L226 Difference]: Without dead ends: 59 [2019-10-22 09:00:40,644 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 09:00:40,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-10-22 09:00:40,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2019-10-22 09:00:40,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-22 09:00:40,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2019-10-22 09:00:40,648 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 21 [2019-10-22 09:00:40,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:40,648 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2019-10-22 09:00:40,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:00:40,648 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2019-10-22 09:00:40,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:00:40,649 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:40,649 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:40,650 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2019-10-22 09:00:40,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:40,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1979195964, now seen corresponding path program 1 times [2019-10-22 09:00:40,650 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:40,650 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66123547] [2019-10-22 09:00:40,650 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:40,651 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:40,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:40,860 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:40,860 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66123547] [2019-10-22 09:00:40,861 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722605048] [2019-10-22 09:00:40,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/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 09:00:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:40,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-22 09:00:40,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:41,011 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2019-10-22 09:00:41,012 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,027 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:41,027 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,028 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-10-22 09:00:41,086 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 09:00:41,086 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,102 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:41,103 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,103 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2019-10-22 09:00:41,145 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:41,145 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-10-22 09:00:41,146 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,153 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:41,153 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,153 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2019-10-22 09:00:41,180 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_14|], 2=[|v_#memory_int_13|]} [2019-10-22 09:00:41,184 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 09:00:41,185 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,204 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:41,208 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:41,210 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 27 treesize of output 11 [2019-10-22 09:00:41,211 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,222 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:41,222 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,223 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:56, output treesize:30 [2019-10-22 09:00:41,257 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2019-10-22 09:00:41,257 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,262 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:41,263 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,263 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:18 [2019-10-22 09:00:41,310 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 19 treesize of output 18 [2019-10-22 09:00:41,311 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,320 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:41,320 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,320 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:18 [2019-10-22 09:00:41,331 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 27 treesize of output 11 [2019-10-22 09:00:41,331 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,336 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:41,336 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,336 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:14 [2019-10-22 09:00:41,373 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-22 09:00:41,374 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,380 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:41,381 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:41,381 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:3 [2019-10-22 09:00:41,396 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:41,396 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:41,396 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2019-10-22 09:00:41,397 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062684553] [2019-10-22 09:00:41,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-22 09:00:41,397 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:41,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-22 09:00:41,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2019-10-22 09:00:41,397 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 22 states. [2019-10-22 09:00:41,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:41,914 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2019-10-22 09:00:41,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 09:00:41,914 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 30 [2019-10-22 09:00:41,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:41,914 INFO L225 Difference]: With dead ends: 83 [2019-10-22 09:00:41,915 INFO L226 Difference]: Without dead ends: 77 [2019-10-22 09:00:41,915 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=171, Invalid=641, Unknown=0, NotChecked=0, Total=812 [2019-10-22 09:00:41,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-10-22 09:00:41,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 62. [2019-10-22 09:00:41,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-10-22 09:00:41,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2019-10-22 09:00:41,917 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 30 [2019-10-22 09:00:41,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:41,918 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2019-10-22 09:00:41,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-22 09:00:41,918 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2019-10-22 09:00:41,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-22 09:00:41,924 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:41,924 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:42,125 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:42,125 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION]=== [2019-10-22 09:00:42,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:42,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1282404402, now seen corresponding path program 2 times [2019-10-22 09:00:42,126 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:42,126 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857422595] [2019-10-22 09:00:42,126 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:42,126 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:42,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:42,379 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:42,380 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857422595] [2019-10-22 09:00:42,380 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020855019] [2019-10-22 09:00:42,380 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/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 09:00:42,492 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 09:00:42,492 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 09:00:42,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 45 conjunts are in the unsatisfiable core [2019-10-22 09:00:42,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:42,509 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2019-10-22 09:00:42,509 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:42,513 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:42,513 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:42,513 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-10-22 09:00:42,564 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:42,564 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-10-22 09:00:42,565 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:42,570 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:42,571 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:42,571 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:14 [2019-10-22 09:00:42,607 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 09:00:42,607 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:42,617 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:42,617 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:42,618 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:25 [2019-10-22 09:00:42,734 INFO L341 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2019-10-22 09:00:42,735 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 27 [2019-10-22 09:00:42,735 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:42,754 INFO L567 ElimStorePlain]: treesize reduction 10, result has 68.8 percent of original size [2019-10-22 09:00:42,754 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:42,754 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:22 [2019-10-22 09:00:42,788 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:42,788 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-10-22 09:00:42,789 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:42,796 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:42,797 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:42,797 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:27 [2019-10-22 09:00:42,851 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:42,852 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 1 case distinctions, treesize of input 33 treesize of output 60 [2019-10-22 09:00:42,853 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:42,880 INFO L567 ElimStorePlain]: treesize reduction 34, result has 50.7 percent of original size [2019-10-22 09:00:42,881 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:42,881 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:45, output treesize:32 [2019-10-22 09:00:43,120 INFO L341 Elim1Store]: treesize reduction 48, result has 53.4 percent of original size [2019-10-22 09:00:43,121 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 74 [2019-10-22 09:00:43,122 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,132 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,134 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,135 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,136 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:43,178 INFO L567 ElimStorePlain]: treesize reduction 26, result has 63.4 percent of original size [2019-10-22 09:00:43,179 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:43,179 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:71, output treesize:54 [2019-10-22 09:00:43,234 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,262 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:43,263 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 68 [2019-10-22 09:00:43,264 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 09:00:43,264 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,265 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:43,303 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:43,304 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 134 [2019-10-22 09:00:43,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 09:00:43,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,306 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,306 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,308 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,310 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,311 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,312 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,314 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,316 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,318 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:43,417 INFO L567 ElimStorePlain]: treesize reduction 816, result has 11.4 percent of original size [2019-10-22 09:00:43,418 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2019-10-22 09:00:43,418 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:129, output treesize:103 [2019-10-22 09:00:43,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,583 INFO L392 ElimStorePlain]: Different costs {2=[|#memory_$Pointer$.base|], 6=[v_prenex_4]} [2019-10-22 09:00:43,592 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:43,593 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 33 [2019-10-22 09:00:43,593 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:43,618 INFO L567 ElimStorePlain]: treesize reduction 14, result has 83.1 percent of original size [2019-10-22 09:00:43,635 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:43,635 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 70 [2019-10-22 09:00:43,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,637 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,637 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,638 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,638 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,639 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,639 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,640 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,641 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,642 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:43,685 INFO L567 ElimStorePlain]: treesize reduction 28, result has 59.4 percent of original size [2019-10-22 09:00:43,686 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:43,687 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:97, output treesize:5 [2019-10-22 09:00:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:43,758 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:00:43,758 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2019-10-22 09:00:43,758 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657046306] [2019-10-22 09:00:43,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-22 09:00:43,759 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:43,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-22 09:00:43,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2019-10-22 09:00:43,759 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 31 states. [2019-10-22 09:00:45,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:45,279 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2019-10-22 09:00:45,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-22 09:00:45,279 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 39 [2019-10-22 09:00:45,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:45,280 INFO L225 Difference]: With dead ends: 56 [2019-10-22 09:00:45,280 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:00:45,281 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=391, Invalid=2261, Unknown=0, NotChecked=0, Total=2652 [2019-10-22 09:00:45,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:00:45,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:00:45,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:00:45,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:00:45,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2019-10-22 09:00:45,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:45,282 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:00:45,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-22 09:00:45,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:00:45,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:00:45,483 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:45,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:45 BoogieIcfgContainer [2019-10-22 09:00:45,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:45,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:45,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:45,487 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:45,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:38" (3/4) ... [2019-10-22 09:00:45,491 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:00:45,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-10-22 09:00:45,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2019-10-22 09:00:45,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-10-22 09:00:45,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-10-22 09:00:45,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-10-22 09:00:45,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-10-22 09:00:45,502 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-10-22 09:00:45,502 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-10-22 09:00:45,506 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 09:00:45,506 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 09:00:45,506 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 09:00:45,552 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6ccee79b-8c55-4db5-9234-50fc4e6fab61/bin/uautomizer/witness.graphml [2019-10-22 09:00:45,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:45,554 INFO L168 Benchmark]: Toolchain (without parser) took 8456.40 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 325.1 MB). Free memory was 940.5 MB in the beginning and 894.5 MB in the end (delta: 46.0 MB). Peak memory consumption was 371.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:45,554 INFO L168 Benchmark]: CDTParser took 0.16 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 09:00:45,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -202.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:45,555 INFO L168 Benchmark]: Boogie Preprocessor took 50.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:45,555 INFO L168 Benchmark]: RCFGBuilder took 610.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:45,556 INFO L168 Benchmark]: TraceAbstraction took 7281.82 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 153.1 MB). Free memory was 1.1 GB in the beginning and 906.7 MB in the end (delta: 178.0 MB). Peak memory consumption was 331.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:45,556 INFO L168 Benchmark]: Witness Printer took 65.65 ms. Allocated memory is still 1.4 GB. Free memory was 906.7 MB in the beginning and 894.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:45,558 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 444.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -202.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 610.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7281.82 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 153.1 MB). Free memory was 1.1 GB in the beginning and 906.7 MB in the end (delta: 178.0 MB). Peak memory consumption was 331.1 MB. Max. memory is 11.5 GB. * Witness Printer took 65.65 ms. Allocated memory is still 1.4 GB. Free memory was 906.7 MB in the beginning and 894.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 531]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 527]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 531]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 527]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 535]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 535]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 539]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 539]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 542]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 542]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 78 locations, 20 error locations. Result: SAFE, OverallTime: 7.2s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 290 SDtfs, 609 SDslu, 943 SDs, 0 SdLazy, 1990 SolverSat, 207 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 66 SyntacticMatches, 4 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 65 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 243 ConstructedInterpolants, 11 QuantifiedInterpolants, 93383 SizeOfPredicates, 33 NumberOfNonLiveVariables, 343 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 14/52 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 correct! Received shutdown request...