./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/simple-1.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_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/simple-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/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 d0cf6b9a1a7372eb466349e319faa44cf865bdad ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memtrack) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:03:05,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:03:05,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:03:05,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:03:05,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:03:05,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:03:05,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:03:05,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:03:05,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:03:05,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:03:05,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:03:05,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:03:05,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:03:05,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:03:05,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:03:05,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:03:05,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:03:05,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:03:05,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:03:05,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:03:05,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:03:05,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:03:05,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:03:05,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:03:05,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:03:05,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:03:05,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:03:05,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:03:05,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:03:05,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:03:05,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:03:05,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:03:05,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:03:05,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:03:05,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:03:05,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:03:05,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:03:05,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:03:05,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:03:05,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:03:05,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:03:05,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-10-22 09:03:05,697 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:03:05,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:03:05,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:03:05,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:03:05,699 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:03:05,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:03:05,699 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:03:05,700 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:03:05,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:03:05,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:03:05,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:03:05,700 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:03:05,700 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:03:05,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:03:05,701 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:03:05,701 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:03:05,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:03:05,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:03:05,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:03:05,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:03:05,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:03:05,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:03:05,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:03:05,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:03:05,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:03:05,703 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_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/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 -> d0cf6b9a1a7372eb466349e319faa44cf865bdad [2019-10-22 09:03:05,738 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:03:05,757 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:03:05,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:03:05,763 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:03:05,763 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:03:05,764 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/bin/uautomizer/../../sv-benchmarks/c/list-properties/simple-1.i [2019-10-22 09:03:05,819 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/bin/uautomizer/data/a3691d815/ce861daa45d142fd9881a33c569d7d47/FLAG0256ecffe [2019-10-22 09:03:06,243 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:03:06,244 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/sv-benchmarks/c/list-properties/simple-1.i [2019-10-22 09:03:06,253 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/bin/uautomizer/data/a3691d815/ce861daa45d142fd9881a33c569d7d47/FLAG0256ecffe [2019-10-22 09:03:06,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/bin/uautomizer/data/a3691d815/ce861daa45d142fd9881a33c569d7d47 [2019-10-22 09:03:06,268 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:03:06,269 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:03:06,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:03:06,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:03:06,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:03:06,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:03:06" (1/1) ... [2019-10-22 09:03:06,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@521e9bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:06, skipping insertion in model container [2019-10-22 09:03:06,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:03:06" (1/1) ... [2019-10-22 09:03:06,283 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:03:06,315 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:03:06,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:03:06,630 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:03:06,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:03:06,722 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:03:06,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:06 WrapperNode [2019-10-22 09:03:06,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:03:06,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:03:06,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:03:06,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:03:06,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:06" (1/1) ... [2019-10-22 09:03:06,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:06" (1/1) ... [2019-10-22 09:03:06,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:06" (1/1) ... [2019-10-22 09:03:06,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:06" (1/1) ... [2019-10-22 09:03:06,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:06" (1/1) ... [2019-10-22 09:03:06,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:06" (1/1) ... [2019-10-22 09:03:06,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:06" (1/1) ... [2019-10-22 09:03:06,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:03:06,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:03:06,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:03:06,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:03:06,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/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 09:03:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:03:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:03:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 09:03:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 09:03:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 09:03:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 09:03:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 09:03:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-22 09:03:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:03:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 09:03:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 09:03:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:03:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:03:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:03:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:03:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:03:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:03:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:03:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:03:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:03:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:03:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:03:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:03:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:03:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:03:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:03:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:03:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 09:03:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 09:03:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 09:03:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 09:03:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 09:03:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:03:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:03:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:03:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:03:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:03:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:03:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:03:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:03:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:03:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:03:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:03:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:03:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:03:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:03:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:03:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:03:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:03:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:03:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:03:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:03:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:03:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:03:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:03:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:03:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:03:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:03:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:03:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:03:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:03:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:03:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:03:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:03:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:03:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:03:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:03:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:03:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:03:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:03:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:03:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:03:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:03:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:03:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:03:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:03:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:03:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:03:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:03:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:03:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:03:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:03:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:03:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:03:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:03:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:03:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:03:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:03:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:03:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:03:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:03:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:03:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:03:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:03:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:03:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:03:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:03:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:03:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:03:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:03:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:03:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:03:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:03:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:03:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:03:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:03:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:03:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:03:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:03:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:03:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:03:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:03:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:03:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:03:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:03:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:03:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:03:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:03:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-22 09:03:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:03:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:03:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:03:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 09:03:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 09:03:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:03:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:03:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:03:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:03:07,181 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-22 09:03:07,413 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:03:07,413 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-22 09:03:07,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:07 BoogieIcfgContainer [2019-10-22 09:03:07,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:03:07,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:03:07,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:03:07,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:03:07,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:03:06" (1/3) ... [2019-10-22 09:03:07,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bfc1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:03:07, skipping insertion in model container [2019-10-22 09:03:07,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:06" (2/3) ... [2019-10-22 09:03:07,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bfc1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:03:07, skipping insertion in model container [2019-10-22 09:03:07,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:07" (3/3) ... [2019-10-22 09:03:07,424 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-1.i [2019-10-22 09:03:07,435 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:03:07,447 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2019-10-22 09:03:07,460 INFO L249 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2019-10-22 09:03:07,481 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:03:07,481 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:03:07,481 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:03:07,481 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:03:07,482 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:03:07,482 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:03:07,482 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:03:07,482 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:03:07,498 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2019-10-22 09:03:07,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:03:07,508 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:07,509 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:07,511 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-10-22 09:03:07,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:07,517 INFO L82 PathProgramCache]: Analyzing trace with hash -627636847, now seen corresponding path program 1 times [2019-10-22 09:03:07,526 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:07,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333866448] [2019-10-22 09:03:07,527 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:07,527 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:07,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:07,729 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 09:03:07,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333866448] [2019-10-22 09:03:07,732 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:07,733 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:03:07,733 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135766917] [2019-10-22 09:03:07,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:03:07,740 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:07,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:03:07,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:03:07,757 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 4 states. [2019-10-22 09:03:07,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:07,968 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2019-10-22 09:03:07,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:03:07,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-10-22 09:03:07,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:07,980 INFO L225 Difference]: With dead ends: 51 [2019-10-22 09:03:07,981 INFO L226 Difference]: Without dead ends: 43 [2019-10-22 09:03:07,983 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:03:08,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-22 09:03:08,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-10-22 09:03:08,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-22 09:03:08,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2019-10-22 09:03:08,034 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 9 [2019-10-22 09:03:08,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:08,035 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2019-10-22 09:03:08,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:03:08,035 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2019-10-22 09:03:08,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:03:08,036 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:08,036 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:08,037 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-10-22 09:03:08,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:08,037 INFO L82 PathProgramCache]: Analyzing trace with hash -627636846, now seen corresponding path program 1 times [2019-10-22 09:03:08,037 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:08,037 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094592946] [2019-10-22 09:03:08,038 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,038 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,121 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 09:03:08,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094592946] [2019-10-22 09:03:08,122 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:08,122 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:03:08,122 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794351730] [2019-10-22 09:03:08,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:03:08,124 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:08,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:03:08,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:03:08,124 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 4 states. [2019-10-22 09:03:08,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:08,207 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2019-10-22 09:03:08,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:03:08,207 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-10-22 09:03:08,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:08,208 INFO L225 Difference]: With dead ends: 42 [2019-10-22 09:03:08,208 INFO L226 Difference]: Without dead ends: 42 [2019-10-22 09:03:08,209 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:03:08,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-22 09:03:08,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-10-22 09:03:08,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-22 09:03:08,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2019-10-22 09:03:08,213 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 9 [2019-10-22 09:03:08,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:08,213 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2019-10-22 09:03:08,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:03:08,214 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2019-10-22 09:03:08,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 09:03:08,214 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:08,214 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:08,214 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-10-22 09:03:08,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:08,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1936670362, now seen corresponding path program 1 times [2019-10-22 09:03:08,215 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:08,215 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137201422] [2019-10-22 09:03:08,215 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,215 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,291 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 09:03:08,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137201422] [2019-10-22 09:03:08,292 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:08,292 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:03:08,298 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019260758] [2019-10-22 09:03:08,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:03:08,299 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:08,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:03:08,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:03:08,299 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 5 states. [2019-10-22 09:03:08,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:08,498 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2019-10-22 09:03:08,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:03:08,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-22 09:03:08,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:08,500 INFO L225 Difference]: With dead ends: 71 [2019-10-22 09:03:08,500 INFO L226 Difference]: Without dead ends: 71 [2019-10-22 09:03:08,500 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 09:03:08,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-10-22 09:03:08,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 46. [2019-10-22 09:03:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-22 09:03:08,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2019-10-22 09:03:08,507 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 12 [2019-10-22 09:03:08,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:08,507 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2019-10-22 09:03:08,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:03:08,508 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2019-10-22 09:03:08,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 09:03:08,508 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:08,509 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:08,509 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-10-22 09:03:08,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:08,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1936670361, now seen corresponding path program 1 times [2019-10-22 09:03:08,509 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:08,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862553826] [2019-10-22 09:03:08,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,578 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 09:03:08,578 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862553826] [2019-10-22 09:03:08,579 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:08,579 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:03:08,579 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458639544] [2019-10-22 09:03:08,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:03:08,579 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:08,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:03:08,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:03:08,580 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 5 states. [2019-10-22 09:03:08,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:08,723 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2019-10-22 09:03:08,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:03:08,724 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-22 09:03:08,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:08,725 INFO L225 Difference]: With dead ends: 60 [2019-10-22 09:03:08,725 INFO L226 Difference]: Without dead ends: 60 [2019-10-22 09:03:08,725 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 09:03:08,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-10-22 09:03:08,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2019-10-22 09:03:08,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-22 09:03:08,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2019-10-22 09:03:08,731 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 12 [2019-10-22 09:03:08,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:08,731 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2019-10-22 09:03:08,731 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:03:08,731 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2019-10-22 09:03:08,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 09:03:08,732 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:08,732 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:08,733 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-10-22 09:03:08,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:08,733 INFO L82 PathProgramCache]: Analyzing trace with hash -730464833, now seen corresponding path program 1 times [2019-10-22 09:03:08,733 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:08,733 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641483481] [2019-10-22 09:03:08,734 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,734 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,806 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 09:03:08,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641483481] [2019-10-22 09:03:08,813 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:08,813 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:03:08,813 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460483365] [2019-10-22 09:03:08,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:03:08,814 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:08,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:03:08,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:03:08,814 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 5 states. [2019-10-22 09:03:08,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:08,954 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2019-10-22 09:03:08,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:03:08,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-10-22 09:03:08,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:08,956 INFO L225 Difference]: With dead ends: 57 [2019-10-22 09:03:08,957 INFO L226 Difference]: Without dead ends: 57 [2019-10-22 09:03:08,957 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 09:03:08,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-22 09:03:08,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2019-10-22 09:03:08,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-22 09:03:08,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2019-10-22 09:03:08,962 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 17 [2019-10-22 09:03:08,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:08,962 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2019-10-22 09:03:08,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:03:08,963 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2019-10-22 09:03:08,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 09:03:08,963 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:08,963 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:08,964 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-10-22 09:03:08,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:08,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1501713319, now seen corresponding path program 1 times [2019-10-22 09:03:08,965 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:08,965 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31367694] [2019-10-22 09:03:08,965 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,965 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:08,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:09,054 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 09:03:09,054 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31367694] [2019-10-22 09:03:09,054 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:09,054 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:03:09,055 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461112527] [2019-10-22 09:03:09,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:03:09,055 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:09,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:03:09,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:03:09,056 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 7 states. [2019-10-22 09:03:09,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:09,299 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2019-10-22 09:03:09,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:03:09,300 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-10-22 09:03:09,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:09,301 INFO L225 Difference]: With dead ends: 65 [2019-10-22 09:03:09,301 INFO L226 Difference]: Without dead ends: 65 [2019-10-22 09:03:09,301 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 09:03:09,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-10-22 09:03:09,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 52. [2019-10-22 09:03:09,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-10-22 09:03:09,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2019-10-22 09:03:09,306 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 20 [2019-10-22 09:03:09,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:09,307 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2019-10-22 09:03:09,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:03:09,307 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2019-10-22 09:03:09,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 09:03:09,308 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:09,308 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:09,309 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-10-22 09:03:09,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:09,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1501713318, now seen corresponding path program 1 times [2019-10-22 09:03:09,309 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:09,309 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978893283] [2019-10-22 09:03:09,310 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:09,310 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:09,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:09,439 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 09:03:09,440 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978893283] [2019-10-22 09:03:09,440 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:09,440 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:03:09,441 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302516958] [2019-10-22 09:03:09,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:03:09,441 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:09,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:03:09,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:03:09,442 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 7 states. [2019-10-22 09:03:09,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:09,733 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2019-10-22 09:03:09,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 09:03:09,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-10-22 09:03:09,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:09,734 INFO L225 Difference]: With dead ends: 61 [2019-10-22 09:03:09,735 INFO L226 Difference]: Without dead ends: 61 [2019-10-22 09:03:09,735 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 09:03:09,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-10-22 09:03:09,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 42. [2019-10-22 09:03:09,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-22 09:03:09,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2019-10-22 09:03:09,738 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 20 [2019-10-22 09:03:09,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:09,739 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2019-10-22 09:03:09,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:03:09,739 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2019-10-22 09:03:09,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 09:03:09,740 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:09,740 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 09:03:09,740 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-10-22 09:03:09,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:09,740 INFO L82 PathProgramCache]: Analyzing trace with hash -732674675, now seen corresponding path program 1 times [2019-10-22 09:03:09,741 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:09,741 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757460722] [2019-10-22 09:03:09,741 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:09,741 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:09,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:09,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757460722] [2019-10-22 09:03:09,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878413934] [2019-10-22 09:03:09,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/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 09:03:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:09,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-22 09:03:09,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:10,107 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 09:03:10,107 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:10,120 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:10,123 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 09:03:10,123 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:10,131 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:10,132 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:10,132 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2019-10-22 09:03:10,172 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 09:03:10,172 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:10,182 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:10,185 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 09:03:10,186 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:10,190 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:10,191 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 09:03:10,191 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2019-10-22 09:03:10,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:10,194 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:03:10,194 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 12 [2019-10-22 09:03:10,194 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203390676] [2019-10-22 09:03:10,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 09:03:10,195 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:10,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 09:03:10,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:03:10,196 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 12 states. [2019-10-22 09:03:10,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:10,427 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2019-10-22 09:03:10,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 09:03:10,427 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2019-10-22 09:03:10,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:10,428 INFO L225 Difference]: With dead ends: 57 [2019-10-22 09:03:10,428 INFO L226 Difference]: Without dead ends: 57 [2019-10-22 09:03:10,428 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2019-10-22 09:03:10,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-22 09:03:10,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2019-10-22 09:03:10,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-22 09:03:10,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2019-10-22 09:03:10,432 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 21 [2019-10-22 09:03:10,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:10,432 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2019-10-22 09:03:10,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 09:03:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2019-10-22 09:03:10,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 09:03:10,433 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:10,433 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:10,634 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:10,634 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION]=== [2019-10-22 09:03:10,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:10,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1238079748, now seen corresponding path program 1 times [2019-10-22 09:03:10,634 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:10,635 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394642353] [2019-10-22 09:03:10,635 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:10,635 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:10,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:10,680 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:10,681 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:03:10,692 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-10-22 09:03:10,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:03:10 BoogieIcfgContainer [2019-10-22 09:03:10,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:03:10,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:03:10,706 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:03:10,706 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:03:10,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:07" (3/4) ... [2019-10-22 09:03:10,709 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:03:10,712 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-10-22 09:03:10,756 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bc4d2de0-36ed-4e5a-b097-f7a91f628efa/bin/uautomizer/witness.graphml [2019-10-22 09:03:10,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:03:10,758 INFO L168 Benchmark]: Toolchain (without parser) took 4489.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 937.8 MB in the beginning and 986.4 MB in the end (delta: -48.7 MB). Peak memory consumption was 94.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:10,758 INFO L168 Benchmark]: CDTParser took 0.18 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 09:03:10,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:10,759 INFO L168 Benchmark]: Boogie Preprocessor took 79.96 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:10,759 INFO L168 Benchmark]: RCFGBuilder took 610.63 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: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:10,760 INFO L168 Benchmark]: TraceAbstraction took 3289.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.2 MB in the end (delta: 77.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:10,760 INFO L168 Benchmark]: Witness Printer took 50.82 ms. Allocated memory is still 1.2 GB. Free memory was 988.2 MB in the beginning and 986.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:10,765 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 454.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.96 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 610.63 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: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3289.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.2 MB in the end (delta: 77.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 11.5 GB. * Witness Printer took 50.82 ms. Allocated memory is still 1.2 GB. Free memory was 988.2 MB in the beginning and 986.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 520]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] List a = (List) malloc(sizeof(struct node)); VAL [a={3:0}, malloc(sizeof(struct node))={3:0}] [L522] COND FALSE !(a == 0) VAL [a={3:0}, malloc(sizeof(struct node))={3:0}] [L523] List t; [L524] List p = a; VAL [a={3:0}, malloc(sizeof(struct node))={3:0}, p={3:0}] [L525] a->h = 2 VAL [a={3:0}, malloc(sizeof(struct node))={3:0}, p={3:0}] [L526] COND FALSE !(__VERIFIER_nondet_int()) [L533] p->h = 2 VAL [a={3:0}, malloc(sizeof(struct node))={3:0}, p={3:0}] [L534] p->n = 0 VAL [a={3:0}, malloc(sizeof(struct node))={3:0}, p={3:0}] [L535] p = a VAL [a={3:0}, malloc(sizeof(struct node))={3:0}, p={3:0}] [L536] COND TRUE p!=0 VAL [a={3:0}, malloc(sizeof(struct node))={3:0}, p={3:0}] [L537] EXPR p->h VAL [a={3:0}, malloc(sizeof(struct node))={3:0}, p={3:0}, p->h=2] [L537] COND FALSE !(p->h != 2) [L540] EXPR p->n VAL [a={3:0}, malloc(sizeof(struct node))={3:0}, p={3:0}, p->n={0:0}] [L540] p = p->n [L536] COND FALSE !(p!=0) VAL [a={3:0}, malloc(sizeof(struct node))={3:0}, p={0:0}] [L542] return 0; VAL [\result=0, a={3:0}, malloc(sizeof(struct node))={3:0}, p={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 68 locations, 17 error locations. Result: UNSAFE, OverallTime: 3.2s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 193 SDtfs, 420 SDslu, 300 SDs, 0 SdLazy, 898 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=4, 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, 8 MinimizatonAttempts, 77 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 12860 SizeOfPredicates, 11 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...