./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/test-0158-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/memsafety/test-0158-2.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 c3baf3e1382b3477cfa26255004191fb506be280 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 -Xmx15G -Xms4m -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/memsafety/test-0158-2.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 c3baf3e1382b3477cfa26255004191fb506be280 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:54:05,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:54:05,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:54:05,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:54:05,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:54:05,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:54:05,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:54:05,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:54:05,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:54:05,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:54:05,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:54:05,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:54:05,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:54:05,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:54:05,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:54:05,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:54:05,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:54:05,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:54:05,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:54:05,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:54:05,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:54:05,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:54:05,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:54:05,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:54:05,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:54:05,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:54:05,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:54:05,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:54:05,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:54:05,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:54:05,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:54:05,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:54:05,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:54:05,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:54:05,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:54:05,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:54:05,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:54:05,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:54:05,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:54:05,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:54:05,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:54:05,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:54:05,815 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:54:05,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:54:05,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:54:05,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:54:05,817 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:54:05,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:54:05,818 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:54:05,818 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:54:05,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:54:05,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:54:05,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:54:05,819 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:54:05,819 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:54:05,820 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:54:05,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:54:05,820 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:54:05,820 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:54:05,821 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:54:05,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:54:05,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:54:05,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:54:05,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:54:05,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:54:05,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:54:05,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:54:05,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:54:05,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:54:05,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:54:05,824 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 -> c3baf3e1382b3477cfa26255004191fb506be280 [2020-10-20 05:54:06,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:54:06,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:54:06,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:54:06,063 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:54:06,064 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:54:06,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0158-2.i [2020-10-20 05:54:06,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9115e7b66/d903e0834eb04effb9bfbcf0196b51d1/FLAG29817521b [2020-10-20 05:54:06,720 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:54:06,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0158-2.i [2020-10-20 05:54:06,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9115e7b66/d903e0834eb04effb9bfbcf0196b51d1/FLAG29817521b [2020-10-20 05:54:06,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9115e7b66/d903e0834eb04effb9bfbcf0196b51d1 [2020-10-20 05:54:06,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:54:06,993 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:54:06,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:54:06,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:54:07,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:54:07,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:06" (1/1) ... [2020-10-20 05:54:07,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc48796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:07, skipping insertion in model container [2020-10-20 05:54:07,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:06" (1/1) ... [2020-10-20 05:54:07,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:54:07,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:54:07,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:54:07,506 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:54:07,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:54:07,633 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:54:07,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:07 WrapperNode [2020-10-20 05:54:07,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:54:07,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:54:07,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:54:07,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:54:07,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:07" (1/1) ... [2020-10-20 05:54:07,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:07" (1/1) ... [2020-10-20 05:54:07,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:07" (1/1) ... [2020-10-20 05:54:07,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:07" (1/1) ... [2020-10-20 05:54:07,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:07" (1/1) ... [2020-10-20 05:54:07,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:07" (1/1) ... [2020-10-20 05:54:07,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:07" (1/1) ... [2020-10-20 05:54:07,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:54:07,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:54:07,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:54:07,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:54:07,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:07" (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 [2020-10-20 05:54:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:54:07,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:54:07,773 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 05:54:07,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:54:07,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:54:07,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:54:07,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:54:07,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:54:07,775 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:54:07,775 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:54:07,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 05:54:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 05:54:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 05:54:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 05:54:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:54:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:54:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:54:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:54:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:54:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:54:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:54:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:54:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:54:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:54:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:54:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:54:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:54:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:54:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:54:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:54:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:54:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:54:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:54:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:54:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:54:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:54:07,781 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:54:07,781 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:54:07,781 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:54:07,781 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:54:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:54:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:54:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:54:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:54:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:54:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:54:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:54:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:54:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:54:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:54:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:54:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:54:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:54:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:54:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:54:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:54:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:54:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:54:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:54:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:54:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:54:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:54:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:54:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:54:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:54:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:54:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:54:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:54:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:54:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:54:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:54:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:54:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:54:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:54:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:54:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:54:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:54:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:54:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:54:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:54:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:54:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:54:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:54:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:54:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:54:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:54:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:54:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:54:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:54:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:54:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:54:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:54:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:54:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:54:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:54:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:54:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:54:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:54:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:54:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:54:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:54:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:54:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:54:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:54:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:54:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:54:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:54:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:54:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:54:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:54:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:54:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:54:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:54:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:54:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:54:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:54:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:54:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:54:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:54:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:54:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:54:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:54:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 05:54:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 05:54:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 05:54:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:54:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:54:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 05:54:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:54:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 05:54:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 05:54:08,263 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:54:08,264 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-20 05:54:08,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:54:08 BoogieIcfgContainer [2020-10-20 05:54:08,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:54:08,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:54:08,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:54:08,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:54:08,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:54:06" (1/3) ... [2020-10-20 05:54:08,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ce22af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:54:08, skipping insertion in model container [2020-10-20 05:54:08,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:07" (2/3) ... [2020-10-20 05:54:08,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ce22af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:54:08, skipping insertion in model container [2020-10-20 05:54:08,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:54:08" (3/3) ... [2020-10-20 05:54:08,280 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2020-10-20 05:54:08,291 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:54:08,297 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-20 05:54:08,308 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-20 05:54:08,323 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:54:08,324 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:54:08,324 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:54:08,324 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:54:08,324 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:54:08,324 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:54:08,325 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:54:08,325 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:54:08,339 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-20 05:54:08,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 05:54:08,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:08,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:08,349 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:08,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:08,354 INFO L82 PathProgramCache]: Analyzing trace with hash 666091848, now seen corresponding path program 1 times [2020-10-20 05:54:08,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:54:08,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511244777] [2020-10-20 05:54:08,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:54:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:08,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:54:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:08,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511244777] [2020-10-20 05:54:08,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:54:08,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 05:54:08,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699447872] [2020-10-20 05:54:08,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:54:08,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:54:08,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:54:08,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:54:08,648 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2020-10-20 05:54:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:54:08,722 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-10-20 05:54:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 05:54:08,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 05:54:08,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:54:08,733 INFO L225 Difference]: With dead ends: 18 [2020-10-20 05:54:08,734 INFO L226 Difference]: Without dead ends: 15 [2020-10-20 05:54:08,736 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 [2020-10-20 05:54:08,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-20 05:54:08,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-20 05:54:08,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-20 05:54:08,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-10-20 05:54:08,772 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2020-10-20 05:54:08,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:54:08,772 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-10-20 05:54:08,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:54:08,772 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-10-20 05:54:08,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 05:54:08,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:08,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:08,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 05:54:08,774 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:08,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:08,774 INFO L82 PathProgramCache]: Analyzing trace with hash 666091849, now seen corresponding path program 1 times [2020-10-20 05:54:08,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:54:08,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800540544] [2020-10-20 05:54:08,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:54:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:08,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:54:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:08,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:08,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800540544] [2020-10-20 05:54:08,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:54:08,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 05:54:08,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238743786] [2020-10-20 05:54:08,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:54:08,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:54:08,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:54:08,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:54:08,896 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 4 states. [2020-10-20 05:54:08,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:54:08,929 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-10-20 05:54:08,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 05:54:08,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 05:54:08,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:54:08,931 INFO L225 Difference]: With dead ends: 12 [2020-10-20 05:54:08,931 INFO L226 Difference]: Without dead ends: 12 [2020-10-20 05:54:08,932 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 [2020-10-20 05:54:08,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-20 05:54:08,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-20 05:54:08,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-20 05:54:08,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-10-20 05:54:08,935 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2020-10-20 05:54:08,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:54:08,936 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-10-20 05:54:08,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:54:08,936 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-10-20 05:54:08,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 05:54:08,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:08,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:08,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 05:54:08,938 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:08,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:08,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1176654068, now seen corresponding path program 1 times [2020-10-20 05:54:08,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:54:08,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837105240] [2020-10-20 05:54:08,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:54:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:54:08,968 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:54:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:54:08,993 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:54:09,022 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 05:54:09,022 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:54:09,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 05:54:09,038 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-20 05:54:09,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:54:09 BoogieIcfgContainer [2020-10-20 05:54:09,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:54:09,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:54:09,051 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:54:09,052 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:54:09,052 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:54:08" (3/4) ... [2020-10-20 05:54:09,057 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:54:09,057 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:54:09,060 INFO L168 Benchmark]: Toolchain (without parser) took 2069.31 ms. Allocated memory was 37.2 MB in the beginning and 54.0 MB in the end (delta: 16.8 MB). Free memory was 17.8 MB in the beginning and 10.5 MB in the end (delta: 7.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:09,061 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 34.6 MB. Free memory was 11.5 MB in the beginning and 11.5 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 05:54:09,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.71 ms. Allocated memory was 37.2 MB in the beginning and 47.2 MB in the end (delta: 10.0 MB). Free memory was 16.9 MB in the beginning and 29.5 MB in the end (delta: -12.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:09,063 INFO L168 Benchmark]: Boogie Preprocessor took 65.84 ms. Allocated memory is still 47.2 MB. Free memory was 29.5 MB in the beginning and 26.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:09,064 INFO L168 Benchmark]: RCFGBuilder took 565.63 ms. Allocated memory was 47.2 MB in the beginning and 50.3 MB in the end (delta: 3.1 MB). Free memory was 26.6 MB in the beginning and 22.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:09,065 INFO L168 Benchmark]: TraceAbstraction took 782.94 ms. Allocated memory was 50.3 MB in the beginning and 54.0 MB in the end (delta: 3.7 MB). Free memory was 21.7 MB in the beginning and 10.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:09,066 INFO L168 Benchmark]: Witness Printer took 6.35 ms. Allocated memory is still 54.0 MB. Free memory was 10.9 MB in the beginning and 10.5 MB in the end (delta: 448.8 kB). Peak memory consumption was 448.8 kB. Max. memory is 14.3 GB. [2020-10-20 05:54:09,071 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 34.6 MB. Free memory was 11.5 MB in the beginning and 11.5 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 639.71 ms. Allocated memory was 37.2 MB in the beginning and 47.2 MB in the end (delta: 10.0 MB). Free memory was 16.9 MB in the beginning and 29.5 MB in the end (delta: -12.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 65.84 ms. Allocated memory is still 47.2 MB. Free memory was 29.5 MB in the beginning and 26.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 565.63 ms. Allocated memory was 47.2 MB in the beginning and 50.3 MB in the end (delta: 3.1 MB). Free memory was 26.6 MB in the beginning and 22.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 782.94 ms. Allocated memory was 50.3 MB in the beginning and 54.0 MB in the end (delta: 3.7 MB). Free memory was 21.7 MB in the beginning and 10.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 14.3 GB. * Witness Printer took 6.35 ms. Allocated memory is still 54.0 MB. Free memory was 10.9 MB in the beginning and 10.5 MB in the end (delta: 448.8 kB). Peak memory consumption was 448.8 kB. Max. memory is 14.3 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: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L534] data.str.p2 = &data VAL [data={3:0}, malloc(37U)={-1:0}] [L535] data.str.c[1] = sizeof data.str.p1 VAL [data={3:0}, malloc(37U)={-1:0}] [L536] return 0; [L536] return 0; VAL [\result=0, malloc(37U)={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 41 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 9 SDslu, 17 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 432 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 0.1.25-9a8b2e8 [2020-10-20 05:54:11,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:54:11,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:54:11,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:54:11,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:54:11,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:54:11,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:54:11,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:54:11,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:54:11,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:54:11,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:54:11,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:54:11,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:54:11,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:54:11,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:54:11,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:54:11,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:54:11,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:54:11,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:54:11,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:54:11,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:54:11,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:54:11,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:54:11,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:54:11,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:54:11,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:54:11,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:54:11,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:54:11,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:54:11,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:54:11,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:54:11,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:54:11,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:54:11,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:54:11,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:54:11,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:54:11,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:54:11,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:54:11,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:54:11,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:54:11,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:54:11,347 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:54:11,389 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:54:11,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:54:11,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:54:11,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:54:11,392 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:54:11,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:54:11,392 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:54:11,393 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:54:11,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:54:11,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:54:11,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:54:11,394 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:54:11,395 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:54:11,395 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:54:11,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:54:11,396 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:54:11,396 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:54:11,396 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:54:11,396 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:54:11,396 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:54:11,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:54:11,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:54:11,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:54:11,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:54:11,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:54:11,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:54:11,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:54:11,398 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:54:11,399 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:54:11,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:54:11,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:54:11,399 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 -> c3baf3e1382b3477cfa26255004191fb506be280 [2020-10-20 05:54:11,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:54:11,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:54:11,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:54:11,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:54:11,645 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:54:11,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0158-2.i [2020-10-20 05:54:11,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dabcc512/2f5da8269e674c7189f16dd8adccf796/FLAGf36dedac4 [2020-10-20 05:54:12,217 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:54:12,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0158-2.i [2020-10-20 05:54:12,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dabcc512/2f5da8269e674c7189f16dd8adccf796/FLAGf36dedac4 [2020-10-20 05:54:12,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dabcc512/2f5da8269e674c7189f16dd8adccf796 [2020-10-20 05:54:12,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:54:12,511 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:54:12,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:54:12,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:54:12,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:54:12,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:12" (1/1) ... [2020-10-20 05:54:12,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9f812fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:12, skipping insertion in model container [2020-10-20 05:54:12,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:12" (1/1) ... [2020-10-20 05:54:12,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:54:12,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:54:13,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:54:13,049 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:54:13,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:54:13,169 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:54:13,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:13 WrapperNode [2020-10-20 05:54:13,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:54:13,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:54:13,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:54:13,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:54:13,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:13" (1/1) ... [2020-10-20 05:54:13,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:13" (1/1) ... [2020-10-20 05:54:13,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:13" (1/1) ... [2020-10-20 05:54:13,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:13" (1/1) ... [2020-10-20 05:54:13,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:13" (1/1) ... [2020-10-20 05:54:13,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:13" (1/1) ... [2020-10-20 05:54:13,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:13" (1/1) ... [2020-10-20 05:54:13,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:54:13,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:54:13,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:54:13,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:54:13,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:13" (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 [2020-10-20 05:54:13,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:54:13,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:54:13,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:54:13,298 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 05:54:13,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:54:13,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:54:13,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:54:13,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:54:13,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:54:13,300 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:54:13,300 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:54:13,300 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 05:54:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 05:54:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 05:54:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 05:54:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:54:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:54:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:54:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:54:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:54:13,302 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:54:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:54:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:54:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:54:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:54:13,303 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:54:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:54:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:54:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:54:13,304 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:54:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:54:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:54:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:54:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:54:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:54:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:54:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:54:13,305 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:54:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:54:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:54:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:54:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:54:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:54:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:54:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:54:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:54:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:54:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:54:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:54:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:54:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:54:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:54:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:54:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:54:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:54:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:54:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:54:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:54:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:54:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:54:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:54:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:54:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:54:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:54:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:54:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:54:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:54:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:54:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:54:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:54:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:54:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:54:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:54:13,313 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:54:13,313 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:54:13,313 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:54:13,313 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:54:13,313 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:54:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:54:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:54:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:54:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:54:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:54:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:54:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:54:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:54:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:54:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:54:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:54:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:54:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:54:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:54:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:54:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:54:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:54:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:54:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:54:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:54:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:54:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:54:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:54:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:54:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:54:13,317 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:54:13,317 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:54:13,317 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:54:13,317 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:54:13,317 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:54:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:54:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:54:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:54:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:54:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:54:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:54:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:54:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:54:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:54:13,327 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:54:13,327 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:54:13,327 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:54:13,327 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:54:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:54:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:54:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 05:54:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 05:54:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-20 05:54:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:54:13,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:54:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 05:54:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:54:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:54:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 05:54:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-20 05:54:13,894 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:54:13,895 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-20 05:54:13,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:54:13 BoogieIcfgContainer [2020-10-20 05:54:13,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:54:13,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:54:13,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:54:13,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:54:13,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:54:12" (1/3) ... [2020-10-20 05:54:13,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494d1cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:54:13, skipping insertion in model container [2020-10-20 05:54:13,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:13" (2/3) ... [2020-10-20 05:54:13,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494d1cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:54:13, skipping insertion in model container [2020-10-20 05:54:13,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:54:13" (3/3) ... [2020-10-20 05:54:13,907 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2020-10-20 05:54:13,918 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:54:13,925 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-20 05:54:13,936 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-20 05:54:13,952 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:54:13,952 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:54:13,953 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:54:13,953 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:54:13,953 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:54:13,953 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:54:13,953 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:54:13,953 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:54:13,965 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-20 05:54:13,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 05:54:13,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:13,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:13,976 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:13,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:13,982 INFO L82 PathProgramCache]: Analyzing trace with hash -632827618, now seen corresponding path program 1 times [2020-10-20 05:54:13,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:54:13,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087006523] [2020-10-20 05:54:13,993 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 [2020-10-20 05:54:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:14,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 05:54:14,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:54:14,280 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-20 05:54:14,281 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2020-10-20 05:54:14,282 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:54:14,290 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:54:14,297 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. [2020-10-20 05:54:14,297 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-10-20 05:54:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:14,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:54:14,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:14,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087006523] [2020-10-20 05:54:14,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:54:14,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:54:14,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77806154] [2020-10-20 05:54:14,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:54:14,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:54:14,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:54:14,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:54:14,364 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-10-20 05:54:14,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:54:14,452 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-10-20 05:54:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:54:14,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-20 05:54:14,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:54:14,465 INFO L225 Difference]: With dead ends: 18 [2020-10-20 05:54:14,465 INFO L226 Difference]: Without dead ends: 15 [2020-10-20 05:54:14,467 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 [2020-10-20 05:54:14,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-20 05:54:14,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-20 05:54:14,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-20 05:54:14,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-10-20 05:54:14,507 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2020-10-20 05:54:14,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:54:14,508 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-10-20 05:54:14,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:54:14,509 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-10-20 05:54:14,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 05:54:14,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:14,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:14,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:54:14,726 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:14,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:14,727 INFO L82 PathProgramCache]: Analyzing trace with hash -632827617, now seen corresponding path program 1 times [2020-10-20 05:54:14,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:54:14,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010925842] [2020-10-20 05:54:14,729 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 [2020-10-20 05:54:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:14,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:54:14,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:54:14,911 INFO L441 ElimStorePlain]: Different costs {0=[|v_#length_21|], 1=[|v_#valid_27|]} [2020-10-20 05:54:14,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 05:54:14,920 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 [2020-10-20 05:54:14,920 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:54:14,933 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:54:14,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 05:54:14,944 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 [2020-10-20 05:54:14,945 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 05:54:14,955 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:54:14,957 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. [2020-10-20 05:54:14,957 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2020-10-20 05:54:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:14,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:54:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:15,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010925842] [2020-10-20 05:54:15,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:54:15,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-20 05:54:15,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038700014] [2020-10-20 05:54:15,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:54:15,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:54:15,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:54:15,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:54:15,046 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 4 states. [2020-10-20 05:54:15,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:54:15,118 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-10-20 05:54:15,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:54:15,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 05:54:15,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:54:15,120 INFO L225 Difference]: With dead ends: 12 [2020-10-20 05:54:15,120 INFO L226 Difference]: Without dead ends: 12 [2020-10-20 05:54:15,121 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 [2020-10-20 05:54:15,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-20 05:54:15,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-20 05:54:15,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-20 05:54:15,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-10-20 05:54:15,125 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2020-10-20 05:54:15,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:54:15,126 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-10-20 05:54:15,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:54:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-10-20 05:54:15,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 05:54:15,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:15,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:15,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:54:15,339 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:15,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:15,340 INFO L82 PathProgramCache]: Analyzing trace with hash -509331102, now seen corresponding path program 1 times [2020-10-20 05:54:15,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:54:15,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414200224] [2020-10-20 05:54:15,343 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 [2020-10-20 05:54:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:54:15,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:54:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:54:15,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:54:15,587 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 05:54:15,588 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:54:15,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:54:15,813 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-20 05:54:15,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:54:15 BoogieIcfgContainer [2020-10-20 05:54:15,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:54:15,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:54:15,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:54:15,827 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:54:15,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:54:13" (3/4) ... [2020-10-20 05:54:15,832 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:54:15,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:54:15,834 INFO L168 Benchmark]: Toolchain (without parser) took 3327.30 ms. Allocated memory was 39.3 MB in the beginning and 59.8 MB in the end (delta: 20.4 MB). Free memory was 16.2 MB in the beginning and 37.5 MB in the end (delta: -21.3 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 05:54:15,835 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 38.3 MB. Free memory was 12.6 MB in the beginning and 12.5 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-20 05:54:15,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.83 ms. Allocated memory was 39.3 MB in the beginning and 47.2 MB in the end (delta: 7.9 MB). Free memory was 15.4 MB in the beginning and 26.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:15,837 INFO L168 Benchmark]: Boogie Preprocessor took 64.98 ms. Allocated memory is still 47.2 MB. Free memory was 26.0 MB in the beginning and 23.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:15,838 INFO L168 Benchmark]: RCFGBuilder took 661.25 ms. Allocated memory was 47.2 MB in the beginning and 49.8 MB in the end (delta: 2.6 MB). Free memory was 23.1 MB in the beginning and 26.6 MB in the end (delta: -3.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:15,839 INFO L168 Benchmark]: TraceAbstraction took 1927.27 ms. Allocated memory was 49.8 MB in the beginning and 59.8 MB in the end (delta: 10.0 MB). Free memory was 26.3 MB in the beginning and 38.0 MB in the end (delta: -11.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:15,840 INFO L168 Benchmark]: Witness Printer took 6.23 ms. Allocated memory is still 59.8 MB. Free memory was 38.0 MB in the beginning and 37.5 MB in the end (delta: 492.8 kB). Peak memory consumption was 492.8 kB. Max. memory is 14.3 GB. [2020-10-20 05:54:15,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 38.3 MB. Free memory was 12.6 MB in the beginning and 12.5 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 657.83 ms. Allocated memory was 39.3 MB in the beginning and 47.2 MB in the end (delta: 7.9 MB). Free memory was 15.4 MB in the beginning and 26.0 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 64.98 ms. Allocated memory is still 47.2 MB. Free memory was 26.0 MB in the beginning and 23.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 661.25 ms. Allocated memory was 47.2 MB in the beginning and 49.8 MB in the end (delta: 2.6 MB). Free memory was 23.1 MB in the beginning and 26.6 MB in the end (delta: -3.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1927.27 ms. Allocated memory was 49.8 MB in the beginning and 59.8 MB in the end (delta: 10.0 MB). Free memory was 26.3 MB in the beginning and 38.0 MB in the end (delta: -11.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.3 GB. * Witness Printer took 6.23 ms. Allocated memory is still 59.8 MB. Free memory was 38.0 MB in the beginning and 37.5 MB in the end (delta: 492.8 kB). Peak memory consumption was 492.8 kB. Max. memory is 14.3 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: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) VAL [data={11:0}, malloc(37U)={1:0}] [L534] data.str.p2 = &data VAL [data={11:0}, malloc(37U)={1:0}] [L535] data.str.c[1] = sizeof data.str.p1 VAL [data={11:0}, malloc(37U)={1:0}] [L536] return 0; [L536] return 0; VAL [\result=0, malloc(37U)={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 47 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 9 SDslu, 16 SDs, 0 SdLazy, 19 SolverSat, 4 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=21occurred 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, 25 NumberOfCodeBlocks, 25 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...