./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7e4a97fa815d265dd112866b503fcff377f0496 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:10:54,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:10:54,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:10:54,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:10:54,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:10:54,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:10:54,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:10:54,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:10:54,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:10:54,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:10:54,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:10:54,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:10:54,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:10:54,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:10:54,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:10:54,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:10:54,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:10:54,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:10:54,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:10:54,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:10:54,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:10:54,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:10:54,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:10:54,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:10:54,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:10:54,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:10:54,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:10:54,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:10:54,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:10:54,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:10:54,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:10:54,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:10:54,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:10:54,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:10:54,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:10:54,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:10:54,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:10:54,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:10:54,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:10:54,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:10:54,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:10:54,717 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-29 19:10:54,741 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:10:54,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:10:54,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:10:54,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:10:54,743 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:10:54,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:10:54,743 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:10:54,744 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:10:54,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:10:54,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:10:54,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:10:54,745 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 19:10:54,745 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 19:10:54,745 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 19:10:54,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:10:54,746 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 19:10:54,746 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:10:54,746 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:10:54,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:10:54,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:10:54,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:10:54,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:10:54,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:10:54,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:10:54,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:10:54,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:10:54,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:10:54,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:10:54,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7e4a97fa815d265dd112866b503fcff377f0496 [2020-11-29 19:10:54,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:10:55,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:10:55,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:10:55,038 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:10:55,039 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:10:55,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/../../sv-benchmarks/c/memsafety/test-0158-3.i [2020-11-29 19:10:55,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/data/74c9af4ae/f60bcbb59201411fb884fd00134b6e1e/FLAG3a89ffac4 [2020-11-29 19:10:55,628 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:10:55,628 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/sv-benchmarks/c/memsafety/test-0158-3.i [2020-11-29 19:10:55,652 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/data/74c9af4ae/f60bcbb59201411fb884fd00134b6e1e/FLAG3a89ffac4 [2020-11-29 19:10:55,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/data/74c9af4ae/f60bcbb59201411fb884fd00134b6e1e [2020-11-29 19:10:55,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:10:55,948 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 19:10:55,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:10:55,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:10:55,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:10:55,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:10:55" (1/1) ... [2020-11-29 19:10:55,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a6e8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:55, skipping insertion in model container [2020-11-29 19:10:55,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:10:55" (1/1) ... [2020-11-29 19:10:55,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:10:56,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:10:56,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:10:56,485 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:10:56,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:10:56,617 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:10:56,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:56 WrapperNode [2020-11-29 19:10:56,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:10:56,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:10:56,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:10:56,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:10:56,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:56" (1/1) ... [2020-11-29 19:10:56,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:56" (1/1) ... [2020-11-29 19:10:56,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:56" (1/1) ... [2020-11-29 19:10:56,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:56" (1/1) ... [2020-11-29 19:10:56,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:56" (1/1) ... [2020-11-29 19:10:56,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:56" (1/1) ... [2020-11-29 19:10:56,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:56" (1/1) ... [2020-11-29 19:10:56,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:10:56,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:10:56,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:10:56,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:10:56,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:10:56,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 19:10:56,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:10:56,780 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-29 19:10:56,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-29 19:10:56,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-29 19:10:56,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-29 19:10:56,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-29 19:10:56,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-29 19:10:56,781 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 19:10:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 19:10:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-29 19:10:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-29 19:10:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-29 19:10:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-29 19:10:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:10:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-29 19:10:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-29 19:10:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-29 19:10:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-29 19:10:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-29 19:10:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-29 19:10:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-29 19:10:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-29 19:10:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-29 19:10:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-29 19:10:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-29 19:10:56,785 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-29 19:10:56,785 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-29 19:10:56,785 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-29 19:10:56,785 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-29 19:10:56,785 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-29 19:10:56,786 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-29 19:10:56,786 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-29 19:10:56,786 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-29 19:10:56,786 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-29 19:10:56,786 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-29 19:10:56,787 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-29 19:10:56,787 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-29 19:10:56,787 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-29 19:10:56,787 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-29 19:10:56,787 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-29 19:10:56,788 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-29 19:10:56,788 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-29 19:10:56,788 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-29 19:10:56,788 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-29 19:10:56,788 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-29 19:10:56,788 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-29 19:10:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-29 19:10:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-29 19:10:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-29 19:10:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-29 19:10:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-29 19:10:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-29 19:10:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-29 19:10:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-29 19:10:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-29 19:10:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-29 19:10:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-29 19:10:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-29 19:10:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-29 19:10:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-29 19:10:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-29 19:10:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-29 19:10:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-29 19:10:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-29 19:10:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-29 19:10:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-29 19:10:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-29 19:10:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-29 19:10:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-29 19:10:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-29 19:10:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-29 19:10:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-29 19:10:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-29 19:10:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-29 19:10:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-29 19:10:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-29 19:10:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-29 19:10:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-29 19:10:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-29 19:10:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-29 19:10:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-29 19:10:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-29 19:10:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-29 19:10:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-29 19:10:56,796 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-29 19:10:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-29 19:10:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-29 19:10:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-29 19:10:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-29 19:10:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-29 19:10:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-29 19:10:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-29 19:10:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-29 19:10:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-29 19:10:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-29 19:10:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-29 19:10:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-29 19:10:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-29 19:10:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-29 19:10:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-29 19:10:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-29 19:10:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-29 19:10:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-29 19:10:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-29 19:10:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-29 19:10:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-29 19:10:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-29 19:10:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-29 19:10:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-29 19:10:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-29 19:10:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-29 19:10:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-29 19:10:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-29 19:10:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-29 19:10:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-29 19:10:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-29 19:10:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-29 19:10:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-29 19:10:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-29 19:10:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-29 19:10:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-11-29 19:10:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-11-29 19:10:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2020-11-29 19:10:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-11-29 19:10:56,806 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-11-29 19:10:56,806 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2020-11-29 19:10:56,806 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-11-29 19:10:56,806 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-11-29 19:10:56,806 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2020-11-29 19:10:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2020-11-29 19:10:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-11-29 19:10:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-11-29 19:10:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2020-11-29 19:10:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2020-11-29 19:10:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2020-11-29 19:10:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2020-11-29 19:10:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2020-11-29 19:10:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2020-11-29 19:10:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2020-11-29 19:10:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-11-29 19:10:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2020-11-29 19:10:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2020-11-29 19:10:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2020-11-29 19:10:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-11-29 19:10:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2020-11-29 19:10:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2020-11-29 19:10:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2020-11-29 19:10:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-11-29 19:10:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2020-11-29 19:10:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2020-11-29 19:10:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2020-11-29 19:10:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2020-11-29 19:10:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2020-11-29 19:10:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2020-11-29 19:10:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2020-11-29 19:10:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure index [2020-11-29 19:10:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2020-11-29 19:10:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2020-11-29 19:10:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2020-11-29 19:10:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2020-11-29 19:10:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2020-11-29 19:10:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2020-11-29 19:10:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2020-11-29 19:10:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2020-11-29 19:10:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2020-11-29 19:10:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2020-11-29 19:10:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2020-11-29 19:10:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2020-11-29 19:10:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2020-11-29 19:10:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2020-11-29 19:10:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2020-11-29 19:10:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 19:10:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 19:10:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 19:10:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 19:10:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:10:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:10:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 19:10:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:10:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:10:56,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:10:57,458 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:10:57,461 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-29 19:10:57,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:10:57 BoogieIcfgContainer [2020-11-29 19:10:57,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:10:57,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:10:57,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:10:57,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:10:57,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:10:55" (1/3) ... [2020-11-29 19:10:57,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f881d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:10:57, skipping insertion in model container [2020-11-29 19:10:57,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:56" (2/3) ... [2020-11-29 19:10:57,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f881d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:10:57, skipping insertion in model container [2020-11-29 19:10:57,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:10:57" (3/3) ... [2020-11-29 19:10:57,474 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-3.i [2020-11-29 19:10:57,486 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:10:57,491 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-11-29 19:10:57,503 INFO L253 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-11-29 19:10:57,524 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:10:57,524 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 19:10:57,524 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:10:57,524 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:10:57,525 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:10:57,525 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:10:57,525 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:10:57,525 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:10:57,539 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-11-29 19:10:57,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:10:57,546 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:10:57,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:57,547 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 19:10:57,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:57,552 INFO L82 PathProgramCache]: Analyzing trace with hash -538157542, now seen corresponding path program 1 times [2020-11-29 19:10:57,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:57,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703249697] [2020-11-29 19:10:57,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:57,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 19:10:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:10:57,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703249697] [2020-11-29 19:10:57,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:10:57,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:10:57,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498325004] [2020-11-29 19:10:57,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:10:57,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:10:57,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:10:57,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:10:57,886 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2020-11-29 19:10:58,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:10:58,013 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2020-11-29 19:10:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:10:58,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 19:10:58,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:10:58,023 INFO L225 Difference]: With dead ends: 34 [2020-11-29 19:10:58,023 INFO L226 Difference]: Without dead ends: 31 [2020-11-29 19:10:58,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:10:58,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-29 19:10:58,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-29 19:10:58,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 19:10:58,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2020-11-29 19:10:58,067 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 7 [2020-11-29 19:10:58,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:10:58,068 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2020-11-29 19:10:58,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:10:58,068 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2020-11-29 19:10:58,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:10:58,069 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:10:58,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:58,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:10:58,070 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 19:10:58,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:58,071 INFO L82 PathProgramCache]: Analyzing trace with hash -538157541, now seen corresponding path program 1 times [2020-11-29 19:10:58,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:58,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485134235] [2020-11-29 19:10:58,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:58,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 19:10:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:58,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:10:58,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485134235] [2020-11-29 19:10:58,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:10:58,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:10:58,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446738653] [2020-11-29 19:10:58,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:10:58,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:10:58,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:10:58,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:10:58,187 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 4 states. [2020-11-29 19:10:58,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:10:58,285 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-11-29 19:10:58,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:10:58,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 19:10:58,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:10:58,287 INFO L225 Difference]: With dead ends: 26 [2020-11-29 19:10:58,287 INFO L226 Difference]: Without dead ends: 26 [2020-11-29 19:10:58,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:10:58,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-29 19:10:58,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-11-29 19:10:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-29 19:10:58,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2020-11-29 19:10:58,291 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 7 [2020-11-29 19:10:58,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:10:58,292 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2020-11-29 19:10:58,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:10:58,292 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-11-29 19:10:58,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 19:10:58,292 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:10:58,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:58,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:10:58,293 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 19:10:58,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:58,293 INFO L82 PathProgramCache]: Analyzing trace with hash 408834944, now seen corresponding path program 1 times [2020-11-29 19:10:58,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:58,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413194854] [2020-11-29 19:10:58,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:58,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 19:10:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:58,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:10:58,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413194854] [2020-11-29 19:10:58,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:10:58,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:10:58,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531306332] [2020-11-29 19:10:58,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:10:58,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:10:58,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:10:58,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:10:58,486 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 6 states. [2020-11-29 19:10:58,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:10:58,581 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-11-29 19:10:58,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:10:58,581 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-29 19:10:58,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:10:58,582 INFO L225 Difference]: With dead ends: 25 [2020-11-29 19:10:58,582 INFO L226 Difference]: Without dead ends: 25 [2020-11-29 19:10:58,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-29 19:10:58,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-29 19:10:58,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-29 19:10:58,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 19:10:58,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2020-11-29 19:10:58,587 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 13 [2020-11-29 19:10:58,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:10:58,587 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2020-11-29 19:10:58,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:10:58,587 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2020-11-29 19:10:58,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 19:10:58,588 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:10:58,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:58,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:10:58,589 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 19:10:58,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:58,589 INFO L82 PathProgramCache]: Analyzing trace with hash -211018557, now seen corresponding path program 1 times [2020-11-29 19:10:58,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:58,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976723593] [2020-11-29 19:10:58,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:58,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 19:10:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:58,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:10:58,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976723593] [2020-11-29 19:10:58,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:10:58,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:10:58,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66530825] [2020-11-29 19:10:58,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:10:58,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:10:58,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:10:58,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:10:58,726 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 6 states. [2020-11-29 19:10:58,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:10:58,827 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-11-29 19:10:58,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:10:58,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-29 19:10:58,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:10:58,828 INFO L225 Difference]: With dead ends: 24 [2020-11-29 19:10:58,829 INFO L226 Difference]: Without dead ends: 24 [2020-11-29 19:10:58,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-29 19:10:58,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-29 19:10:58,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-11-29 19:10:58,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-29 19:10:58,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2020-11-29 19:10:58,837 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 14 [2020-11-29 19:10:58,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:10:58,838 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2020-11-29 19:10:58,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:10:58,838 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2020-11-29 19:10:58,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 19:10:58,839 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:10:58,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:58,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 19:10:58,840 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 19:10:58,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:58,842 INFO L82 PathProgramCache]: Analyzing trace with hash 2048359394, now seen corresponding path program 1 times [2020-11-29 19:10:58,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:58,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866510421] [2020-11-29 19:10:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:58,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 19:10:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:59,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:10:59,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866510421] [2020-11-29 19:10:59,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:10:59,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:10:59,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627612703] [2020-11-29 19:10:59,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:10:59,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:10:59,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:10:59,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:10:59,011 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 6 states. [2020-11-29 19:10:59,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:10:59,120 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-11-29 19:10:59,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:10:59,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-29 19:10:59,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:10:59,121 INFO L225 Difference]: With dead ends: 23 [2020-11-29 19:10:59,121 INFO L226 Difference]: Without dead ends: 23 [2020-11-29 19:10:59,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-29 19:10:59,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-29 19:10:59,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-29 19:10:59,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-29 19:10:59,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2020-11-29 19:10:59,125 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 15 [2020-11-29 19:10:59,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:10:59,125 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2020-11-29 19:10:59,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:10:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2020-11-29 19:10:59,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 19:10:59,126 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:10:59,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:59,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 19:10:59,127 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 19:10:59,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:59,127 INFO L82 PathProgramCache]: Analyzing trace with hash -925368155, now seen corresponding path program 1 times [2020-11-29 19:10:59,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:59,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488920759] [2020-11-29 19:10:59,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:59,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 19:10:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:59,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:10:59,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488920759] [2020-11-29 19:10:59,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:10:59,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 19:10:59,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952611851] [2020-11-29 19:10:59,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 19:10:59,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:10:59,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 19:10:59,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:10:59,214 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 7 states. [2020-11-29 19:10:59,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:10:59,353 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-11-29 19:10:59,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 19:10:59,354 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-11-29 19:10:59,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:10:59,355 INFO L225 Difference]: With dead ends: 22 [2020-11-29 19:10:59,355 INFO L226 Difference]: Without dead ends: 22 [2020-11-29 19:10:59,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-11-29 19:10:59,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-29 19:10:59,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-29 19:10:59,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-29 19:10:59,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-11-29 19:10:59,360 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 16 [2020-11-29 19:10:59,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:10:59,360 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-11-29 19:10:59,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 19:10:59,361 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-11-29 19:10:59,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 19:10:59,361 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:10:59,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:59,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 19:10:59,362 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 19:10:59,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:59,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1378358340, now seen corresponding path program 1 times [2020-11-29 19:10:59,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:59,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890577333] [2020-11-29 19:10:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:59,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 19:10:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:10:59,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890577333] [2020-11-29 19:10:59,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:10:59,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 19:10:59,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703145467] [2020-11-29 19:10:59,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 19:10:59,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:10:59,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 19:10:59,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:10:59,485 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 7 states. [2020-11-29 19:10:59,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:10:59,625 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-11-29 19:10:59,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 19:10:59,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-11-29 19:10:59,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:10:59,626 INFO L225 Difference]: With dead ends: 21 [2020-11-29 19:10:59,626 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 19:10:59,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-11-29 19:10:59,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 19:10:59,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-29 19:10:59,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-29 19:10:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-11-29 19:10:59,630 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 17 [2020-11-29 19:10:59,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:10:59,630 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-11-29 19:10:59,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 19:10:59,630 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-11-29 19:10:59,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 19:10:59,631 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:10:59,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:59,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 19:10:59,631 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 19:10:59,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:59,632 INFO L82 PathProgramCache]: Analyzing trace with hash -220564345, now seen corresponding path program 1 times [2020-11-29 19:10:59,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:59,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725559680] [2020-11-29 19:10:59,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:59,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:59,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:59,732 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:10:59,732 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:10:59,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 19:10:59,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:10:59 BoogieIcfgContainer [2020-11-29 19:10:59,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:10:59,757 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:10:59,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:10:59,757 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:10:59,758 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:10:57" (3/4) ... [2020-11-29 19:10:59,760 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 19:10:59,797 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1a17475c-e237-4fc7-836c-2afecc591a34/bin/uautomizer/witness.graphml [2020-11-29 19:10:59,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:10:59,799 INFO L168 Benchmark]: Toolchain (without parser) took 3850.38 ms. Allocated memory was 83.9 MB in the beginning and 121.6 MB in the end (delta: 37.7 MB). Free memory was 52.5 MB in the beginning and 76.1 MB in the end (delta: -23.6 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:10:59,800 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 83.9 MB. Free memory was 55.8 MB in the beginning and 55.8 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:10:59,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.33 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 52.2 MB in the beginning and 58.6 MB in the end (delta: -6.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:10:59,801 INFO L168 Benchmark]: Boogie Preprocessor took 88.42 ms. Allocated memory is still 100.7 MB. Free memory was 58.6 MB in the beginning and 55.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:10:59,802 INFO L168 Benchmark]: RCFGBuilder took 755.90 ms. Allocated memory is still 100.7 MB. Free memory was 55.6 MB in the beginning and 45.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:10:59,803 INFO L168 Benchmark]: TraceAbstraction took 2289.91 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 45.1 MB in the beginning and 78.2 MB in the end (delta: -33.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:10:59,803 INFO L168 Benchmark]: Witness Printer took 40.07 ms. Allocated memory is still 121.6 MB. Free memory was 78.2 MB in the beginning and 76.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:10:59,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 83.9 MB. Free memory was 55.8 MB in the beginning and 55.8 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 661.33 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 52.2 MB in the beginning and 58.6 MB in the end (delta: -6.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.42 ms. Allocated memory is still 100.7 MB. Free memory was 58.6 MB in the beginning and 55.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 755.90 ms. Allocated memory is still 100.7 MB. Free memory was 55.6 MB in the beginning and 45.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2289.91 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 45.1 MB in the beginning and 78.2 MB in the end (delta: -33.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 40.07 ms. Allocated memory is still 121.6 MB. Free memory was 78.2 MB in the beginning and 76.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 655]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L642-L649] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L650] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L651] data.str.p2 = &data VAL [data={3:0}, malloc(37U)={-1:0}] [L652] EXPR data.p0 VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}] [L652] void *ptr = data.p0; [L653] data.str.c[1] = sizeof data.str.p1 VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L654] EXPR data.p0 VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L654] free(data.p0) VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L654] free(data.p0) VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L654] free(data.p0) [L655] free(ptr) VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L655] free(ptr) VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L655] free(ptr) VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 59 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 142 SDslu, 139 SDs, 0 SdLazy, 306 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 14 SyntacticMatches, 8 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 7507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...