./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8fdeb5a608a809e67439a428636d313b7ceb3d25 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8fdeb5a608a809e67439a428636d313b7ceb3d25 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:05:39,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:05:39,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:05:39,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:05:39,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:05:39,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:05:39,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:05:39,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:05:39,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:05:39,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:05:39,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:05:39,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:05:39,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:05:39,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:05:39,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:05:39,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:05:39,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:05:39,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:05:39,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:05:39,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:05:39,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:05:39,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:05:39,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:05:39,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:05:39,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:05:39,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:05:39,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:05:39,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:05:39,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:05:39,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:05:39,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:05:39,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:05:39,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:05:39,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:05:39,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:05:39,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:05:39,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:05:39,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:05:39,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:05:39,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:05:39,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:05:39,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:05:39,640 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:05:39,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:05:39,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:05:39,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:05:39,643 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:05:39,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:05:39,643 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:05:39,644 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:05:39,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:05:39,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:05:39,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:05:39,646 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:05:39,646 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:05:39,647 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:05:39,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:05:39,647 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:05:39,647 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:05:39,648 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:05:39,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:05:39,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:05:39,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:05:39,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:05:39,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:05:39,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:05:39,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:05:39,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:05:39,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:05:39,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:05:39,651 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2020-10-19 18:05:39,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:05:40,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:05:40,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:05:40,014 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:05:40,015 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:05:40,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-10-19 18:05:40,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d70c24ed/2434b226f34548c89a03d80886b74512/FLAGf2ea5ac93 [2020-10-19 18:05:40,557 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:05:40,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-10-19 18:05:40,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d70c24ed/2434b226f34548c89a03d80886b74512/FLAGf2ea5ac93 [2020-10-19 18:05:40,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d70c24ed/2434b226f34548c89a03d80886b74512 [2020-10-19 18:05:40,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:05:40,861 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:05:40,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:05:40,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:05:40,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:05:40,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:05:40" (1/1) ... [2020-10-19 18:05:40,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779229fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:40, skipping insertion in model container [2020-10-19 18:05:40,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:05:40" (1/1) ... [2020-10-19 18:05:40,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:05:40,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:05:41,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:05:41,384 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:05:41,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:05:41,489 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:05:41,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41 WrapperNode [2020-10-19 18:05:41,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:05:41,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:05:41,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:05:41,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:05:41,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:05:41,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:05:41,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:05:41,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:05:41,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:05:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:05:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:05:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:05:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:05:41,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:05:41,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:05:41,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:05:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:05:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:05:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:05:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:05:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:05:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:05:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:05:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:05:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:05:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:05:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:05:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:05:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:05:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:05:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:05:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:05:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:05:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:05:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:05:41,617 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:05:41,617 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:05:41,617 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:05:41,617 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:05:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:05:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:05:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:05:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:05:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:05:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:05:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:05:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:05:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:05:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:05:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:05:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:05:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:05:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:05:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:05:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:05:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:05:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:05:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:05:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:05:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:05:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:05:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:05:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:05:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:05:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:05:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:05:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:05:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:05:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:05:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:05:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:05:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:05:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:05:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:05:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:05:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:05:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:05:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:05:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:05:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:05:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:05:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:05:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:05:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:05:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:05:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:05:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:05:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:05:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:05:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:05:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:05:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:05:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:05:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:05:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:05:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:05:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:05:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:05:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:05:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:05:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:05:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:05:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:05:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:05:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:05:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:05:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:05:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:05:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:05:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:05:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:05:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:05:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:05:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:05:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:05:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:05:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:05:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:05:41,634 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:05:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:05:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:05:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:05:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:05:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:05:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:05:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:05:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:05:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:05:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:05:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:05:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:05:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:05:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:05:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:05:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:05:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:05:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:05:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:05:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:05:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:05:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:05:42,150 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:05:42,151 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-19 18:05:42,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:05:42 BoogieIcfgContainer [2020-10-19 18:05:42,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:05:42,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:05:42,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:05:42,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:05:42,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:05:40" (1/3) ... [2020-10-19 18:05:42,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794d4ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:05:42, skipping insertion in model container [2020-10-19 18:05:42,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (2/3) ... [2020-10-19 18:05:42,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794d4ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:05:42, skipping insertion in model container [2020-10-19 18:05:42,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:05:42" (3/3) ... [2020-10-19 18:05:42,168 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2020-10-19 18:05:42,178 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:05:42,186 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-19 18:05:42,202 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-19 18:05:42,222 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:05:42,222 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:05:42,223 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:05:42,223 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:05:42,223 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:05:42,224 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:05:42,224 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:05:42,224 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:05:42,239 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-19 18:05:42,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:05:42,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:05:42,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:05:42,252 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-19 18:05:42,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:05:42,259 INFO L82 PathProgramCache]: Analyzing trace with hash 349376891, now seen corresponding path program 1 times [2020-10-19 18:05:42,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:05:42,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542266285] [2020-10-19 18:05:42,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:05:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:05:42,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:05:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:05:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:05:42,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542266285] [2020-10-19 18:05:42,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:05:42,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:05:42,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338187838] [2020-10-19 18:05:42,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:05:42,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:05:42,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:05:42,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:05:42,548 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2020-10-19 18:05:42,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:05:42,656 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-10-19 18:05:42,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:05:42,659 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:05:42,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:05:42,669 INFO L225 Difference]: With dead ends: 25 [2020-10-19 18:05:42,669 INFO L226 Difference]: Without dead ends: 22 [2020-10-19 18:05:42,671 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 [2020-10-19 18:05:42,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-19 18:05:42,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-19 18:05:42,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-19 18:05:42,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-10-19 18:05:42,711 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2020-10-19 18:05:42,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:05:42,712 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-10-19 18:05:42,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:05:42,713 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-10-19 18:05:42,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:05:42,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:05:42,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:05:42,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:05:42,715 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-19 18:05:42,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:05:42,715 INFO L82 PathProgramCache]: Analyzing trace with hash 349376892, now seen corresponding path program 1 times [2020-10-19 18:05:42,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:05:42,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459987184] [2020-10-19 18:05:42,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:05:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:05:42,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:05:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:05:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:05:42,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459987184] [2020-10-19 18:05:42,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:05:42,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:05:42,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333479320] [2020-10-19 18:05:42,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:05:42,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:05:42,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:05:42,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:05:42,860 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 4 states. [2020-10-19 18:05:42,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:05:42,945 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-10-19 18:05:42,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:05:42,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:05:42,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:05:42,948 INFO L225 Difference]: With dead ends: 17 [2020-10-19 18:05:42,948 INFO L226 Difference]: Without dead ends: 17 [2020-10-19 18:05:42,949 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 [2020-10-19 18:05:42,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-19 18:05:42,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-19 18:05:42,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 18:05:42,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-10-19 18:05:42,957 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2020-10-19 18:05:42,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:05:42,957 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-10-19 18:05:42,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:05:42,958 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-10-19 18:05:42,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 18:05:42,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:05:42,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:05:42,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:05:42,961 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-19 18:05:42,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:05:42,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1583269800, now seen corresponding path program 1 times [2020-10-19 18:05:42,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:05:42,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952297211] [2020-10-19 18:05:42,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:05:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:05:43,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:05:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:05:43,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:05:43,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952297211] [2020-10-19 18:05:43,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:05:43,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:05:43,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917852547] [2020-10-19 18:05:43,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:05:43,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:05:43,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:05:43,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:05:43,088 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2020-10-19 18:05:43,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:05:43,158 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-10-19 18:05:43,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:05:43,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-19 18:05:43,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:05:43,160 INFO L225 Difference]: With dead ends: 21 [2020-10-19 18:05:43,160 INFO L226 Difference]: Without dead ends: 21 [2020-10-19 18:05:43,161 INFO L677 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 [2020-10-19 18:05:43,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-19 18:05:43,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2020-10-19 18:05:43,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-19 18:05:43,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-10-19 18:05:43,166 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2020-10-19 18:05:43,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:05:43,167 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-10-19 18:05:43,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:05:43,167 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-10-19 18:05:43,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 18:05:43,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:05:43,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:05:43,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:05:43,169 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-19 18:05:43,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:05:43,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1731033160, now seen corresponding path program 1 times [2020-10-19 18:05:43,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:05:43,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041592486] [2020-10-19 18:05:43,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:05:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:05:43,197 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:05:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:05:43,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:05:43,248 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:05:43,248 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:05:43,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:05:43,266 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-19 18:05:43,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:05:43 BoogieIcfgContainer [2020-10-19 18:05:43,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:05:43,287 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:05:43,287 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:05:43,288 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:05:43,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:05:42" (3/4) ... [2020-10-19 18:05:43,308 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:05:43,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:05:43,311 INFO L168 Benchmark]: Toolchain (without parser) took 2454.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 953.2 MB in the beginning and 971.1 MB in the end (delta: -17.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:05:43,313 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:05:43,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -149.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:05:43,315 INFO L168 Benchmark]: Boogie Preprocessor took 58.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:05:43,317 INFO L168 Benchmark]: RCFGBuilder took 603.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:05:43,320 INFO L168 Benchmark]: TraceAbstraction took 1132.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 971.1 MB in the end (delta: 75.8 MB). Peak memory consumption was 75.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:05:43,321 INFO L168 Benchmark]: Witness Printer took 21.69 ms. Allocated memory is still 1.1 GB. Free memory is still 971.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:05:43,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 627.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -149.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 603.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1132.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 971.1 MB in the end (delta: 75.8 MB). Peak memory consumption was 75.8 MB. Max. memory is 11.5 GB. * Witness Printer took 21.69 ms. Allocated memory is still 1.1 GB. Free memory is still 971.1 MB. There was no memory consumed. 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) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={3:0}, malloc(37U)={-1:0}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30, malloc(37U)={-1:0}] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0, malloc(37U)={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 50 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 26 SDslu, 41 SDs, 0 SdLazy, 97 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 1043 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-906a4fb [2020-10-19 18:05:45,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:05:45,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:05:45,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:05:45,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:05:45,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:05:45,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:05:45,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:05:45,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:05:45,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:05:45,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:05:45,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:05:45,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:05:45,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:05:45,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:05:45,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:05:45,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:05:45,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:05:45,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:05:45,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:05:45,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:05:45,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:05:45,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:05:45,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:05:45,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:05:45,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:05:45,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:05:45,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:05:45,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:05:45,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:05:45,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:05:45,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:05:45,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:05:45,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:05:45,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:05:45,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:05:45,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:05:45,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:05:45,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:05:45,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:05:45,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:05:45,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 18:05:45,474 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:05:45,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:05:45,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:05:45,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:05:45,477 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:05:45,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:05:45,477 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:05:45,477 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:05:45,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:05:45,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:05:45,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:05:45,479 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:05:45,479 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:05:45,479 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:05:45,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:05:45,480 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:05:45,480 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 18:05:45,480 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 18:05:45,481 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:05:45,481 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:05:45,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:05:45,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:05:45,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:05:45,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:05:45,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:05:45,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:05:45,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:05:45,483 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 18:05:45,483 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 18:05:45,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:05:45,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 18:05:45,484 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2020-10-19 18:05:45,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:05:45,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:05:45,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:05:45,870 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:05:45,871 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:05:45,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-10-19 18:05:45,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0195cdb/ca629bd723d7427a9213e75d3e8264ec/FLAG36c0ff636 [2020-10-19 18:05:46,496 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:05:46,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-10-19 18:05:46,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0195cdb/ca629bd723d7427a9213e75d3e8264ec/FLAG36c0ff636 [2020-10-19 18:05:46,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0195cdb/ca629bd723d7427a9213e75d3e8264ec [2020-10-19 18:05:46,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:05:46,786 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:05:46,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:05:46,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:05:46,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:05:46,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:05:46" (1/1) ... [2020-10-19 18:05:46,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f157ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:46, skipping insertion in model container [2020-10-19 18:05:46,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:05:46" (1/1) ... [2020-10-19 18:05:46,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:05:46,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:05:47,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:05:47,368 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:05:47,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:05:47,492 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:05:47,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:47 WrapperNode [2020-10-19 18:05:47,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:05:47,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:05:47,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:05:47,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:05:47,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:47" (1/1) ... [2020-10-19 18:05:47,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:47" (1/1) ... [2020-10-19 18:05:47,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:47" (1/1) ... [2020-10-19 18:05:47,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:47" (1/1) ... [2020-10-19 18:05:47,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:47" (1/1) ... [2020-10-19 18:05:47,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:47" (1/1) ... [2020-10-19 18:05:47,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:47" (1/1) ... [2020-10-19 18:05:47,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:05:47,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:05:47,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:05:47,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:05:47,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:05:47,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:05:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:05:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:05:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:05:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:05:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:05:47,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:05:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:05:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:05:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:05:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:05:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:05:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:05:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:05:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:05:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:05:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:05:47,631 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:05:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:05:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:05:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:05:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:05:47,632 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:05:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:05:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:05:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:05:47,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:05:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:05:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:05:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:05:47,634 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:05:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:05:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:05:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:05:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:05:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:05:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:05:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:05:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:05:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:05:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:05:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:05:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:05:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:05:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:05:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:05:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:05:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:05:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:05:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:05:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:05:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:05:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:05:47,640 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:05:47,640 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:05:47,640 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:05:47,640 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:05:47,640 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:05:47,641 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:05:47,641 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:05:47,641 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:05:47,641 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:05:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:05:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:05:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:05:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:05:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:05:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:05:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:05:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:05:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:05:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:05:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:05:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:05:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:05:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:05:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:05:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:05:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:05:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:05:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:05:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:05:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:05:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:05:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:05:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:05:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:05:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:05:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:05:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:05:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:05:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:05:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:05:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:05:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:05:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:05:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:05:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:05:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:05:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:05:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:05:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:05:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:05:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:05:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:05:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:05:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:05:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:05:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:05:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:05:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:05:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:05:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:05:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:05:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:05:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:05:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:05:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:05:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:05:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:05:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:05:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:05:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:05:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:05:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:05:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:05:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 18:05:47,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 18:05:47,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-19 18:05:47,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:05:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:05:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-19 18:05:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:05:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:05:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-19 18:05:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:05:48,232 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:05:48,233 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-19 18:05:48,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:05:48 BoogieIcfgContainer [2020-10-19 18:05:48,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:05:48,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:05:48,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:05:48,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:05:48,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:05:46" (1/3) ... [2020-10-19 18:05:48,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fceaab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:05:48, skipping insertion in model container [2020-10-19 18:05:48,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:47" (2/3) ... [2020-10-19 18:05:48,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fceaab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:05:48, skipping insertion in model container [2020-10-19 18:05:48,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:05:48" (3/3) ... [2020-10-19 18:05:48,245 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2020-10-19 18:05:48,258 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:05:48,266 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-19 18:05:48,281 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-19 18:05:48,303 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:05:48,303 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:05:48,303 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:05:48,303 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:05:48,304 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:05:48,304 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:05:48,304 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:05:48,305 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:05:48,320 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-19 18:05:48,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:05:48,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:05:48,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:05:48,332 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-19 18:05:48,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:05:48,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1837077008, now seen corresponding path program 1 times [2020-10-19 18:05:48,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:05:48,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632277706] [2020-10-19 18:05:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-19 18:05:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:05:48,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:05:48,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:05:48,644 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-19 18:05:48,645 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2020-10-19 18:05:48,646 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:48,653 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:48,660 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:05:48,661 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-10-19 18:05:48,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:05:48,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:05:48,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:05:48,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632277706] [2020-10-19 18:05:48,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:05:48,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 18:05:48,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661380649] [2020-10-19 18:05:48,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:05:48,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:05:48,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:05:48,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:05:48,723 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2020-10-19 18:05:48,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:05:48,842 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-10-19 18:05:48,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:05:48,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-19 18:05:48,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:05:48,853 INFO L225 Difference]: With dead ends: 24 [2020-10-19 18:05:48,854 INFO L226 Difference]: Without dead ends: 21 [2020-10-19 18:05:48,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:05:48,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-19 18:05:48,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-19 18:05:48,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-19 18:05:48,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-19 18:05:48,891 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2020-10-19 18:05:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:05:48,892 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-19 18:05:48,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:05:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-19 18:05:48,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:05:48,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:05:48,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:05:49,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 18:05:49,115 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-19 18:05:49,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:05:49,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1837077007, now seen corresponding path program 1 times [2020-10-19 18:05:49,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:05:49,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353039880] [2020-10-19 18:05:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-19 18:05:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:05:49,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:05:49,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:05:49,271 INFO L441 ElimStorePlain]: Different costs {0=[|v_#length_25|], 1=[|v_#valid_31|]} [2020-10-19 18:05:49,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 18:05:49,281 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-10-19 18:05:49,282 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:49,296 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:49,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 18:05:49,307 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2020-10-19 18:05:49,308 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:49,320 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:49,321 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:05:49,322 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2020-10-19 18:05:49,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:05:49,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:05:49,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:05:49,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353039880] [2020-10-19 18:05:49,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:05:49,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-19 18:05:49,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454628955] [2020-10-19 18:05:49,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:05:49,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:05:49,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:05:49,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:05:49,401 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 4 states. [2020-10-19 18:05:49,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:05:49,477 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-10-19 18:05:49,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:05:49,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:05:49,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:05:49,480 INFO L225 Difference]: With dead ends: 16 [2020-10-19 18:05:49,480 INFO L226 Difference]: Without dead ends: 16 [2020-10-19 18:05:49,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:05:49,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-19 18:05:49,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-19 18:05:49,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-19 18:05:49,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-10-19 18:05:49,485 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2020-10-19 18:05:49,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:05:49,486 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-10-19 18:05:49,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:05:49,486 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-10-19 18:05:49,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 18:05:49,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:05:49,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:05:49,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 18:05:49,701 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-19 18:05:49,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:05:49,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1961294140, now seen corresponding path program 1 times [2020-10-19 18:05:49,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:05:49,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705249136] [2020-10-19 18:05:49,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-19 18:05:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:05:49,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:05:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:05:49,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:05:49,928 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-19 18:05:49,929 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:05:50,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 18:05:50,145 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-19 18:05:50,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:05:50 BoogieIcfgContainer [2020-10-19 18:05:50,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:05:50,159 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:05:50,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:05:50,160 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:05:50,160 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:05:48" (3/4) ... [2020-10-19 18:05:50,164 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:05:50,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:05:50,166 INFO L168 Benchmark]: Toolchain (without parser) took 3384.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 953.3 MB in the beginning and 923.3 MB in the end (delta: 29.9 MB). Peak memory consumption was 172.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:05:50,167 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:05:50,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:05:50,168 INFO L168 Benchmark]: Boogie Preprocessor took 72.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:05:50,169 INFO L168 Benchmark]: RCFGBuilder took 668.91 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:05:50,170 INFO L168 Benchmark]: TraceAbstraction took 1922.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 923.3 MB in the end (delta: 138.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:05:50,171 INFO L168 Benchmark]: Witness Printer took 5.22 ms. Allocated memory is still 1.2 GB. Free memory is still 923.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:05:50,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 706.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 668.91 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1922.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 923.3 MB in the end (delta: 138.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.22 ms. Allocated memory is still 1.2 GB. Free memory is still 923.3 MB. There was no memory consumed. 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) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={3:0}, malloc(37U)={1:0}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30, malloc(37U)={1:0}] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0, malloc(37U)={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 55 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 23 SDslu, 16 SDs, 0 SdLazy, 25 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 360 SizeOfPredicates, 5 NumberOfNonLiveVariables, 122 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...