./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/test-0234-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec 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_1.5.800.v20200727-1323.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-0234-2.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 5a645958c16cc940658b53821ab7b3c3bff1f224 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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_1.5.800.v20200727-1323.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-0234-2.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 5a645958c16cc940658b53821ab7b3c3bff1f224 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Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 05:29:05,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 05:29:05,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 05:29:05,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 05:29:05,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 05:29:05,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 05:29:05,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 05:29:06,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 05:29:06,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 05:29:06,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 05:29:06,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 05:29:06,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 05:29:06,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 05:29:06,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 05:29:06,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 05:29:06,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 05:29:06,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 05:29:06,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 05:29:06,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 05:29:06,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 05:29:06,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 05:29:06,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 05:29:06,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 05:29:06,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 05:29:06,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 05:29:06,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 05:29:06,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 05:29:06,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 05:29:06,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 05:29:06,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 05:29:06,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 05:29:06,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 05:29:06,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 05:29:06,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 05:29:06,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 05:29:06,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 05:29:06,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 05:29:06,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 05:29:06,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 05:29:06,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 05:29:06,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 05:29:06,060 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 05:29:06,090 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 05:29:06,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 05:29:06,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 05:29:06,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 05:29:06,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 05:29:06,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 05:29:06,093 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 05:29:06,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 05:29:06,093 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 05:29:06,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 05:29:06,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 05:29:06,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 05:29:06,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 05:29:06,094 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 05:29:06,094 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 05:29:06,094 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 05:29:06,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 05:29:06,095 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 05:29:06,095 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 05:29:06,095 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 05:29:06,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 05:29:06,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 05:29:06,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 05:29:06,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 05:29:06,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 05:29:06,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 05:29:06,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 05:29:06,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 05:29:06,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 05:29:06,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a645958c16cc940658b53821ab7b3c3bff1f224 [2021-08-27 05:29:06,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 05:29:06,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 05:29:06,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 05:29:06,414 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 05:29:06,415 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 05:29:06,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0234-2.i [2021-08-27 05:29:06,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d78cbe4/f502f925e26441c5ad9fdb3c3ae39f47/FLAG54cc75251 [2021-08-27 05:29:06,891 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 05:29:06,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0234-2.i [2021-08-27 05:29:06,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d78cbe4/f502f925e26441c5ad9fdb3c3ae39f47/FLAG54cc75251 [2021-08-27 05:29:07,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d78cbe4/f502f925e26441c5ad9fdb3c3ae39f47 [2021-08-27 05:29:07,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 05:29:07,234 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 05:29:07,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 05:29:07,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 05:29:07,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 05:29:07,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:29:07" (1/1) ... [2021-08-27 05:29:07,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dec23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:07, skipping insertion in model container [2021-08-27 05:29:07,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:29:07" (1/1) ... [2021-08-27 05:29:07,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 05:29:07,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 05:29:07,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 05:29:07,561 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 05:29:07,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 05:29:07,646 INFO L208 MainTranslator]: Completed translation [2021-08-27 05:29:07,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:07 WrapperNode [2021-08-27 05:29:07,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 05:29:07,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 05:29:07,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 05:29:07,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 05:29:07,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:07" (1/1) ... [2021-08-27 05:29:07,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:07" (1/1) ... [2021-08-27 05:29:07,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:07" (1/1) ... [2021-08-27 05:29:07,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:07" (1/1) ... [2021-08-27 05:29:07,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:07" (1/1) ... [2021-08-27 05:29:07,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:07" (1/1) ... [2021-08-27 05:29:07,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:07" (1/1) ... [2021-08-27 05:29:07,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 05:29:07,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 05:29:07,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 05:29:07,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 05:29:07,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:07" (1/1) ... [2021-08-27 05:29:07,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 05:29:07,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:29:07,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 05:29:07,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 05:29:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 05:29:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 05:29:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-27 05:29:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 05:29:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 05:29:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 05:29:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 05:29:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 05:29:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure calloc_model [2021-08-27 05:29:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2021-08-27 05:29:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_insert [2021-08-27 05:29:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_insert [2021-08-27 05:29:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_insert [2021-08-27 05:29:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_insert [2021-08-27 05:29:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_insert [2021-08-27 05:29:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_destroy [2021-08-27 05:29:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_destroy [2021-08-27 05:29:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_destroy [2021-08-27 05:29:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_destroy [2021-08-27 05:29:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_destroy [2021-08-27 05:29:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 05:29:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 05:29:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 05:29:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-27 05:29:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-08-27 05:29:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-08-27 05:29:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 05:29:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 05:29:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 05:29:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 05:29:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 05:29:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 05:29:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 05:29:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 05:29:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 05:29:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 05:29:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 05:29:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 05:29:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 05:29:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 05:29:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 05:29:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 05:29:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 05:29:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 05:29:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 05:29:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 05:29:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 05:29:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 05:29:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 05:29:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 05:29:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 05:29:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 05:29:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 05:29:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 05:29:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 05:29:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 05:29:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 05:29:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 05:29:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 05:29:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 05:29:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 05:29:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 05:29:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 05:29:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 05:29:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 05:29:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 05:29:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 05:29:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 05:29:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 05:29:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 05:29:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 05:29:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 05:29:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 05:29:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 05:29:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 05:29:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 05:29:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 05:29:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 05:29:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 05:29:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 05:29:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 05:29:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 05:29:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 05:29:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 05:29:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 05:29:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 05:29:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 05:29:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 05:29:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 05:29:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 05:29:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 05:29:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 05:29:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 05:29:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 05:29:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 05:29:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 05:29:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 05:29:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 05:29:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 05:29:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 05:29:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 05:29:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 05:29:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 05:29:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 05:29:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 05:29:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 05:29:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 05:29:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 05:29:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 05:29:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2021-08-27 05:29:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2021-08-27 05:29:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 05:29:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2021-08-27 05:29:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure index [2021-08-27 05:29:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure calloc_model [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 05:29:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure l4_insert [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure l3_insert [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure l2_insert [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure l1_insert [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure l0_insert [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure l4_destroy [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure l3_destroy [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure l2_destroy [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure l1_destroy [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure l0_destroy [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 05:29:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 05:29:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 05:29:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 05:29:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 05:29:08,309 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 05:29:08,455 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 05:29:08,455 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-27 05:29:08,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:29:08 BoogieIcfgContainer [2021-08-27 05:29:08,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 05:29:08,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 05:29:08,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 05:29:08,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 05:29:08,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 05:29:07" (1/3) ... [2021-08-27 05:29:08,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1453ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 05:29:08, skipping insertion in model container [2021-08-27 05:29:08,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:07" (2/3) ... [2021-08-27 05:29:08,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1453ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 05:29:08, skipping insertion in model container [2021-08-27 05:29:08,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:29:08" (3/3) ... [2021-08-27 05:29:08,461 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0234-2.i [2021-08-27 05:29:08,464 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 05:29:08,465 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2021-08-27 05:29:08,489 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 05:29:08,494 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 05:29:08,494 INFO L340 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2021-08-27 05:29:08,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 118 states have (on average 1.728813559322034) internal successors, (204), 183 states have internal predecessors, (204), 20 states have call successors, (20), 15 states have call predecessors, (20), 15 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 05:29:08,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 05:29:08,509 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:08,510 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:08,510 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:08,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:08,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1775323064, now seen corresponding path program 1 times [2021-08-27 05:29:08,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:29:08,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45015834] [2021-08-27 05:29:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:08,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:29:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:08,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 05:29:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:08,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 05:29:08,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:29:08,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45015834] [2021-08-27 05:29:08,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45015834] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 05:29:08,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:29:08,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 05:29:08,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706611262] [2021-08-27 05:29:08,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 05:29:08,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:29:08,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 05:29:08,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 05:29:08,669 INFO L87 Difference]: Start difference. First operand has 218 states, 118 states have (on average 1.728813559322034) internal successors, (204), 183 states have internal predecessors, (204), 20 states have call successors, (20), 15 states have call predecessors, (20), 15 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 05:29:08,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:08,959 INFO L93 Difference]: Finished difference Result 245 states and 265 transitions. [2021-08-27 05:29:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 05:29:08,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-08-27 05:29:08,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:08,967 INFO L225 Difference]: With dead ends: 245 [2021-08-27 05:29:08,967 INFO L226 Difference]: Without dead ends: 242 [2021-08-27 05:29:08,968 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 05:29:08,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-08-27 05:29:08,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 215. [2021-08-27 05:29:09,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 112 states have (on average 1.7053571428571428) internal successors, (191), 181 states have internal predecessors, (191), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 05:29:09,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 230 transitions. [2021-08-27 05:29:09,012 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 230 transitions. Word has length 7 [2021-08-27 05:29:09,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:09,012 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 230 transitions. [2021-08-27 05:29:09,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 05:29:09,013 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 230 transitions. [2021-08-27 05:29:09,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-27 05:29:09,013 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:09,013 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:09,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 05:29:09,013 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting calloc_modelErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:09,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:09,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1765019691, now seen corresponding path program 1 times [2021-08-27 05:29:09,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:29:09,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107998308] [2021-08-27 05:29:09,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:09,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:29:09,039 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:29:09,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557216500] [2021-08-27 05:29:09,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:09,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:09,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:29:09,053 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 05:29:09,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-27 05:29:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:09,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 05:29:09,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:09,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 05:29:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 05:29:09,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:29:09,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107998308] [2021-08-27 05:29:09,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:29:09,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557216500] [2021-08-27 05:29:09,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557216500] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 05:29:09,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:29:09,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 05:29:09,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248932473] [2021-08-27 05:29:09,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 05:29:09,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:29:09,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 05:29:09,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 05:29:09,315 INFO L87 Difference]: Start difference. First operand 215 states and 230 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 05:29:09,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:09,409 INFO L93 Difference]: Finished difference Result 214 states and 229 transitions. [2021-08-27 05:29:09,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 05:29:09,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-08-27 05:29:09,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:09,413 INFO L225 Difference]: With dead ends: 214 [2021-08-27 05:29:09,413 INFO L226 Difference]: Without dead ends: 214 [2021-08-27 05:29:09,425 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 05:29:09,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-08-27 05:29:09,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-08-27 05:29:09,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 112 states have (on average 1.6964285714285714) internal successors, (190), 180 states have internal predecessors, (190), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 05:29:09,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 229 transitions. [2021-08-27 05:29:09,444 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 229 transitions. Word has length 12 [2021-08-27 05:29:09,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:09,444 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 229 transitions. [2021-08-27 05:29:09,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 05:29:09,444 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 229 transitions. [2021-08-27 05:29:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-27 05:29:09,444 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:09,444 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:09,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-27 05:29:09,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:09,663 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting calloc_modelErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:09,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:09,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1765019692, now seen corresponding path program 1 times [2021-08-27 05:29:09,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:29:09,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471377395] [2021-08-27 05:29:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:09,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:29:09,676 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:29:09,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [70930448] [2021-08-27 05:29:09,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:09,676 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:09,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:29:09,677 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 05:29:09,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-27 05:29:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:09,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 05:29:09,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:09,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-08-27 05:29:09,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 05:29:09,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:29:09,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471377395] [2021-08-27 05:29:09,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:29:09,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70930448] [2021-08-27 05:29:09,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70930448] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 05:29:09,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:29:09,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 05:29:09,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33466163] [2021-08-27 05:29:09,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 05:29:09,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:29:09,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 05:29:09,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-27 05:29:09,962 INFO L87 Difference]: Start difference. First operand 214 states and 229 transitions. Second operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 05:29:10,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:10,096 INFO L93 Difference]: Finished difference Result 213 states and 228 transitions. [2021-08-27 05:29:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 05:29:10,098 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-08-27 05:29:10,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:10,099 INFO L225 Difference]: With dead ends: 213 [2021-08-27 05:29:10,099 INFO L226 Difference]: Without dead ends: 213 [2021-08-27 05:29:10,099 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 52.2ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-27 05:29:10,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-08-27 05:29:10,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2021-08-27 05:29:10,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 111 states have (on average 1.7027027027027026) internal successors, (189), 179 states have internal predecessors, (189), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 05:29:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 228 transitions. [2021-08-27 05:29:10,104 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 228 transitions. Word has length 12 [2021-08-27 05:29:10,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:10,104 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 228 transitions. [2021-08-27 05:29:10,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 05:29:10,104 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 228 transitions. [2021-08-27 05:29:10,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-08-27 05:29:10,107 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:10,107 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:10,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-27 05:29:10,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-08-27 05:29:10,325 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting l4_insertErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:10,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:10,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1481553517, now seen corresponding path program 1 times [2021-08-27 05:29:10,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:29:10,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156252473] [2021-08-27 05:29:10,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:10,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:29:10,342 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:29:10,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890791647] [2021-08-27 05:29:10,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:10,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:10,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:29:10,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 05:29:10,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-27 05:29:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:10,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 55 conjunts are in the unsatisfiable core [2021-08-27 05:29:10,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:10,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-08-27 05:29:11,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2021-08-27 05:29:11,405 INFO L388 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 13 treesize of output 11 [2021-08-27 05:29:11,600 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-08-27 05:29:11,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 36 [2021-08-27 05:29:11,612 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 05:29:11,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 35 [2021-08-27 05:29:14,802 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 98 proven. 13 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-08-27 05:29:14,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:29:14,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156252473] [2021-08-27 05:29:14,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:29:14,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890791647] [2021-08-27 05:29:14,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890791647] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 05:29:14,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-27 05:29:14,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-08-27 05:29:14,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321864746] [2021-08-27 05:29:14,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-27 05:29:14,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:29:14,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 05:29:14,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2021-08-27 05:29:14,804 INFO L87 Difference]: Start difference. First operand 213 states and 228 transitions. Second operand has 16 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2021-08-27 05:29:19,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:19,093 INFO L93 Difference]: Finished difference Result 241 states and 265 transitions. [2021-08-27 05:29:19,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 05:29:19,094 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 123 [2021-08-27 05:29:19,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:19,095 INFO L225 Difference]: With dead ends: 241 [2021-08-27 05:29:19,095 INFO L226 Difference]: Without dead ends: 241 [2021-08-27 05:29:19,095 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 106 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 4026.4ms TimeCoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2021-08-27 05:29:19,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-08-27 05:29:19,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 210. [2021-08-27 05:29:19,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 111 states have (on average 1.6756756756756757) internal successors, (186), 176 states have internal predecessors, (186), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 05:29:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 225 transitions. [2021-08-27 05:29:19,100 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 225 transitions. Word has length 123 [2021-08-27 05:29:19,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:19,101 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 225 transitions. [2021-08-27 05:29:19,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 6 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2021-08-27 05:29:19,101 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 225 transitions. [2021-08-27 05:29:19,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-08-27 05:29:19,102 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:19,102 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:19,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-27 05:29:19,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:19,313 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:19,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:19,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1481553518, now seen corresponding path program 1 times [2021-08-27 05:29:19,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:29:19,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888715406] [2021-08-27 05:29:19,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:19,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:29:19,344 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:29:19,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654957365] [2021-08-27 05:29:19,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:19,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:19,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:29:19,373 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 05:29:19,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-27 05:29:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:19,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-27 05:29:19,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:20,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 05:29:20,120 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 05:29:20,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-08-27 05:29:20,138 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 113 proven. 7 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-08-27 05:29:20,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:29:20,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888715406] [2021-08-27 05:29:20,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:29:20,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654957365] [2021-08-27 05:29:20,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654957365] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 05:29:20,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-27 05:29:20,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-08-27 05:29:20,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645995423] [2021-08-27 05:29:20,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 05:29:20,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:29:20,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 05:29:20,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-08-27 05:29:20,142 INFO L87 Difference]: Start difference. First operand 210 states and 225 transitions. Second operand has 14 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2021-08-27 05:29:21,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:21,102 INFO L93 Difference]: Finished difference Result 240 states and 264 transitions. [2021-08-27 05:29:21,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 05:29:21,103 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 123 [2021-08-27 05:29:21,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:21,106 INFO L225 Difference]: With dead ends: 240 [2021-08-27 05:29:21,107 INFO L226 Difference]: Without dead ends: 240 [2021-08-27 05:29:21,107 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 172.4ms TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2021-08-27 05:29:21,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-08-27 05:29:21,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 209. [2021-08-27 05:29:21,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 111 states have (on average 1.6666666666666667) internal successors, (185), 175 states have internal predecessors, (185), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 05:29:21,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 224 transitions. [2021-08-27 05:29:21,114 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 224 transitions. Word has length 123 [2021-08-27 05:29:21,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:21,116 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 224 transitions. [2021-08-27 05:29:21,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2021-08-27 05:29:21,116 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 224 transitions. [2021-08-27 05:29:21,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-08-27 05:29:21,123 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:21,123 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:21,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-27 05:29:21,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:21,342 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting l4_insertErr2REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:21,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:21,342 INFO L82 PathProgramCache]: Analyzing trace with hash -2138746509, now seen corresponding path program 1 times [2021-08-27 05:29:21,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:29:21,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661628750] [2021-08-27 05:29:21,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:21,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:29:21,362 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:29:21,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [831844619] [2021-08-27 05:29:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:21,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:21,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:29:21,364 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 05:29:21,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-27 05:29:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:21,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 41 conjunts are in the unsatisfiable core [2021-08-27 05:29:21,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:21,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 05:29:22,071 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 05:29:22,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-08-27 05:29:22,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 05:29:22,167 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 05:29:22,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-08-27 05:29:22,203 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 139 proven. 14 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-08-27 05:29:22,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:29:22,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661628750] [2021-08-27 05:29:22,204 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:29:22,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831844619] [2021-08-27 05:29:22,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831844619] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 05:29:22,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-27 05:29:22,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-08-27 05:29:22,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263386391] [2021-08-27 05:29:22,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-27 05:29:22,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:29:22,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 05:29:22,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-08-27 05:29:22,206 INFO L87 Difference]: Start difference. First operand 209 states and 224 transitions. Second operand has 16 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2021-08-27 05:29:23,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:23,103 INFO L93 Difference]: Finished difference Result 237 states and 261 transitions. [2021-08-27 05:29:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-27 05:29:23,103 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 125 [2021-08-27 05:29:23,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:23,105 INFO L225 Difference]: With dead ends: 237 [2021-08-27 05:29:23,105 INFO L226 Difference]: Without dead ends: 237 [2021-08-27 05:29:23,105 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 107 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 273.4ms TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2021-08-27 05:29:23,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-08-27 05:29:23,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 206. [2021-08-27 05:29:23,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 111 states have (on average 1.6396396396396395) internal successors, (182), 172 states have internal predecessors, (182), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 05:29:23,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 221 transitions. [2021-08-27 05:29:23,110 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 221 transitions. Word has length 125 [2021-08-27 05:29:23,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:23,111 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 221 transitions. [2021-08-27 05:29:23,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2021-08-27 05:29:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 221 transitions. [2021-08-27 05:29:23,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-08-27 05:29:23,112 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:23,112 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:23,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-27 05:29:23,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:23,331 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting l4_insertErr3REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:23,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:23,332 INFO L82 PathProgramCache]: Analyzing trace with hash -2138746508, now seen corresponding path program 1 times [2021-08-27 05:29:23,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:29:23,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635525599] [2021-08-27 05:29:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:23,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:29:23,346 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:29:23,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [66924869] [2021-08-27 05:29:23,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:23,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:23,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:29:23,347 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 05:29:23,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-27 05:29:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:23,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 79 conjunts are in the unsatisfiable core [2021-08-27 05:29:23,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:23,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-08-27 05:29:24,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2021-08-27 05:29:24,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2021-08-27 05:29:24,941 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-08-27 05:29:24,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 42 [2021-08-27 05:29:24,974 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-08-27 05:29:24,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 45 [2021-08-27 05:29:25,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2021-08-27 05:29:25,203 INFO L388 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 13 treesize of output 11 [2021-08-27 05:29:25,340 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-08-27 05:29:25,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 55 [2021-08-27 05:29:25,375 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-08-27 05:29:25,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 53 [2021-08-27 05:29:29,724 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 125 proven. 39 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-08-27 05:29:29,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:29:29,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635525599] [2021-08-27 05:29:29,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:29:29,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66924869] [2021-08-27 05:29:29,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66924869] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 05:29:29,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-27 05:29:29,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2021-08-27 05:29:29,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835986753] [2021-08-27 05:29:29,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-27 05:29:29,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:29:29,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-27 05:29:29,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=361, Unknown=2, NotChecked=0, Total=420 [2021-08-27 05:29:29,728 INFO L87 Difference]: Start difference. First operand 206 states and 221 transitions. Second operand has 21 states, 15 states have (on average 3.6) internal successors, (54), 17 states have internal predecessors, (54), 9 states have call successors, (20), 4 states have call predecessors, (20), 7 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2021-08-27 05:29:34,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:34,448 INFO L93 Difference]: Finished difference Result 234 states and 258 transitions. [2021-08-27 05:29:34,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 05:29:34,448 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 15 states have (on average 3.6) internal successors, (54), 17 states have internal predecessors, (54), 9 states have call successors, (20), 4 states have call predecessors, (20), 7 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 125 [2021-08-27 05:29:34,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:34,450 INFO L225 Difference]: With dead ends: 234 [2021-08-27 05:29:34,450 INFO L226 Difference]: Without dead ends: 234 [2021-08-27 05:29:34,450 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 6581.5ms TimeCoverageRelationStatistics Valid=157, Invalid=1030, Unknown=3, NotChecked=0, Total=1190 [2021-08-27 05:29:34,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-08-27 05:29:34,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 203. [2021-08-27 05:29:34,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 111 states have (on average 1.6126126126126126) internal successors, (179), 169 states have internal predecessors, (179), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 05:29:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 218 transitions. [2021-08-27 05:29:34,454 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 218 transitions. Word has length 125 [2021-08-27 05:29:34,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:34,455 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 218 transitions. [2021-08-27 05:29:34,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 15 states have (on average 3.6) internal successors, (54), 17 states have internal predecessors, (54), 9 states have call successors, (20), 4 states have call predecessors, (20), 7 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2021-08-27 05:29:34,456 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 218 transitions. [2021-08-27 05:29:34,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-08-27 05:29:34,457 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:34,457 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:34,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-08-27 05:29:34,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:34,676 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting l3_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:34,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:34,677 INFO L82 PathProgramCache]: Analyzing trace with hash -985383270, now seen corresponding path program 1 times [2021-08-27 05:29:34,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:29:34,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955649322] [2021-08-27 05:29:34,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:34,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:29:34,700 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:29:34,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2087566573] [2021-08-27 05:29:34,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:34,708 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:34,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:29:34,708 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 05:29:34,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-27 05:29:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:35,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 52 conjunts are in the unsatisfiable core [2021-08-27 05:29:35,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:35,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-08-27 05:29:35,542 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-08-27 05:29:35,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-08-27 05:29:35,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 05:29:35,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 05:29:35,851 INFO L354 Elim1Store]: treesize reduction 82, result has 16.3 percent of original size [2021-08-27 05:29:35,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 31 [2021-08-27 05:29:35,899 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 141 proven. 41 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-08-27 05:29:35,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:29:35,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955649322] [2021-08-27 05:29:35,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:29:35,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087566573] [2021-08-27 05:29:35,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087566573] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 05:29:35,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-27 05:29:35,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-08-27 05:29:35,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988412309] [2021-08-27 05:29:35,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-27 05:29:35,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:29:35,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-27 05:29:35,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2021-08-27 05:29:35,902 INFO L87 Difference]: Start difference. First operand 203 states and 218 transitions. Second operand has 20 states, 15 states have (on average 4.0) internal successors, (60), 16 states have internal predecessors, (60), 8 states have call successors, (18), 4 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16) [2021-08-27 05:29:36,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:36,911 INFO L93 Difference]: Finished difference Result 231 states and 255 transitions. [2021-08-27 05:29:36,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 05:29:36,912 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 4.0) internal successors, (60), 16 states have internal predecessors, (60), 8 states have call successors, (18), 4 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16) Word has length 133 [2021-08-27 05:29:36,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:36,913 INFO L225 Difference]: With dead ends: 231 [2021-08-27 05:29:36,913 INFO L226 Difference]: Without dead ends: 231 [2021-08-27 05:29:36,914 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 111 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 355.7ms TimeCoverageRelationStatistics Valid=160, Invalid=832, Unknown=0, NotChecked=0, Total=992 [2021-08-27 05:29:36,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-08-27 05:29:36,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 200. [2021-08-27 05:29:36,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 111 states have (on average 1.5855855855855856) internal successors, (176), 166 states have internal predecessors, (176), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 05:29:36,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 215 transitions. [2021-08-27 05:29:36,918 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 215 transitions. Word has length 133 [2021-08-27 05:29:36,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:36,919 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 215 transitions. [2021-08-27 05:29:36,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 4.0) internal successors, (60), 16 states have internal predecessors, (60), 8 states have call successors, (18), 4 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16) [2021-08-27 05:29:36,919 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 215 transitions. [2021-08-27 05:29:36,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-08-27 05:29:36,920 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:36,920 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:36,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-27 05:29:37,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:37,139 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting l3_insertErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:37,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:37,140 INFO L82 PathProgramCache]: Analyzing trace with hash -985383269, now seen corresponding path program 1 times [2021-08-27 05:29:37,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:29:37,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499078447] [2021-08-27 05:29:37,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:37,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:29:37,161 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:29:37,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [328765894] [2021-08-27 05:29:37,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:37,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:29:37,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:29:37,169 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 05:29:37,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-27 05:29:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:37,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 116 conjunts are in the unsatisfiable core [2021-08-27 05:29:37,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:37,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-08-27 05:29:42,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2021-08-27 05:29:42,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2021-08-27 05:29:42,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:29:42,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499078447] [2021-08-27 05:29:42,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:29:42,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328765894] [2021-08-27 05:29:42,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 05:29:42,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:29:42,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 05:29:42,839 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-08-27 05:29:42,839 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 05:29:42,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr1REQUIRES_VIOLATION [2021-08-27 05:29:42,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:29:42,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:29:42,846 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:29:42,846 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:29:42,846 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,846 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,846 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,846 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr0REQUIRES_VIOLATION [2021-08-27 05:29:42,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr2REQUIRES_VIOLATION [2021-08-27 05:29:42,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr3REQUIRES_VIOLATION [2021-08-27 05:29:42,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr4REQUIRES_VIOLATION [2021-08-27 05:29:42,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr5REQUIRES_VIOLATION [2021-08-27 05:29:42,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr0REQUIRES_VIOLATION [2021-08-27 05:29:42,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr1REQUIRES_VIOLATION [2021-08-27 05:29:42,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr2REQUIRES_VIOLATION [2021-08-27 05:29:42,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr3REQUIRES_VIOLATION [2021-08-27 05:29:42,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr4REQUIRES_VIOLATION [2021-08-27 05:29:42,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr5REQUIRES_VIOLATION [2021-08-27 05:29:42,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:29:42,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:29:42,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr0REQUIRES_VIOLATION [2021-08-27 05:29:42,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr1REQUIRES_VIOLATION [2021-08-27 05:29:42,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr2REQUIRES_VIOLATION [2021-08-27 05:29:42,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr3REQUIRES_VIOLATION [2021-08-27 05:29:42,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr4REQUIRES_VIOLATION [2021-08-27 05:29:42,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr5REQUIRES_VIOLATION [2021-08-27 05:29:42,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr0REQUIRES_VIOLATION [2021-08-27 05:29:42,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr1REQUIRES_VIOLATION [2021-08-27 05:29:42,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:29:42,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:29:42,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:29:42,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:29:42,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-08-27 05:29:42,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-08-27 05:29:42,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 05:29:42,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:29:42,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:29:42,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:29:42,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:29:42,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:29:42,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:29:42,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:29:42,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:29:42,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:29:42,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr0REQUIRES_VIOLATION [2021-08-27 05:29:42,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr1REQUIRES_VIOLATION [2021-08-27 05:29:42,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr2REQUIRES_VIOLATION [2021-08-27 05:29:42,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr3REQUIRES_VIOLATION [2021-08-27 05:29:42,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr4REQUIRES_VIOLATION [2021-08-27 05:29:42,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr5REQUIRES_VIOLATION [2021-08-27 05:29:42,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr0REQUIRES_VIOLATION [2021-08-27 05:29:42,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr1REQUIRES_VIOLATION [2021-08-27 05:29:42,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr2REQUIRES_VIOLATION [2021-08-27 05:29:42,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr3REQUIRES_VIOLATION [2021-08-27 05:29:42,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr4REQUIRES_VIOLATION [2021-08-27 05:29:42,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr5REQUIRES_VIOLATION [2021-08-27 05:29:42,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr6REQUIRES_VIOLATION [2021-08-27 05:29:42,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr7REQUIRES_VIOLATION [2021-08-27 05:29:42,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-27 05:29:43,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-08-27 05:29:43,076 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 05:29:43,079 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:29:43,080 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:29:43,080 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:29:43,080 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:29:43,080 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:29:43,080 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:29:43,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 05:29:43 BoogieIcfgContainer [2021-08-27 05:29:43,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 05:29:43,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 05:29:43,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 05:29:43,093 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 05:29:43,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:29:08" (3/4) ... [2021-08-27 05:29:43,096 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 05:29:43,096 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 05:29:43,097 INFO L168 Benchmark]: Toolchain (without parser) took 35862.53 ms. Allocated memory was 52.4 MB in the beginning and 343.9 MB in the end (delta: 291.5 MB). Free memory was 31.8 MB in the beginning and 166.6 MB in the end (delta: -134.7 MB). Peak memory consumption was 155.5 MB. Max. memory is 16.1 GB. [2021-08-27 05:29:43,097 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 34.2 MB in the end (delta: 58.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 05:29:43,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 412.82 ms. Allocated memory was 52.4 MB in the beginning and 79.7 MB in the end (delta: 27.3 MB). Free memory was 31.6 MB in the beginning and 52.0 MB in the end (delta: -20.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2021-08-27 05:29:43,098 INFO L168 Benchmark]: Boogie Preprocessor took 76.70 ms. Allocated memory is still 79.7 MB. Free memory was 52.0 MB in the beginning and 48.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 05:29:43,098 INFO L168 Benchmark]: RCFGBuilder took 731.51 ms. Allocated memory is still 79.7 MB. Free memory was 48.2 MB in the beginning and 43.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2021-08-27 05:29:43,101 INFO L168 Benchmark]: TraceAbstraction took 34634.90 ms. Allocated memory was 79.7 MB in the beginning and 343.9 MB in the end (delta: 264.2 MB). Free memory was 43.3 MB in the beginning and 166.6 MB in the end (delta: -123.2 MB). Peak memory consumption was 141.1 MB. Max. memory is 16.1 GB. [2021-08-27 05:29:43,101 INFO L168 Benchmark]: Witness Printer took 3.11 ms. Allocated memory is still 343.9 MB. Free memory is still 166.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 05:29:43,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 34.2 MB in the end (delta: 58.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 412.82 ms. Allocated memory was 52.4 MB in the beginning and 79.7 MB in the end (delta: 27.3 MB). Free memory was 31.6 MB in the beginning and 52.0 MB in the end (delta: -20.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.70 ms. Allocated memory is still 79.7 MB. Free memory was 52.0 MB in the beginning and 48.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 731.51 ms. Allocated memory is still 79.7 MB. Free memory was 48.2 MB in the beginning and 43.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 34634.90 ms. Allocated memory was 79.7 MB in the beginning and 343.9 MB in the end (delta: 264.2 MB). Free memory was 43.3 MB in the beginning and 166.6 MB in the end (delta: -123.2 MB). Peak memory consumption was 141.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.11 ms. Allocated memory is still 343.9 MB. Free memory is still 166.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L766] static struct L0 *list; [L768] CALL l0_insert(&list) [L708] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L708] RET, EXPR zalloc_or_die(sizeof *item) [L708] struct L0 *item = zalloc_or_die(sizeof *item); [L710] CALL l1_insert(&item->down) [L699] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L699] RET, EXPR zalloc_or_die(sizeof *item) [L699] struct L1 *item = zalloc_or_die(sizeof *item); [L701] CALL l2_insert(&item->down) [L690] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L690] RET, EXPR zalloc_or_die(sizeof *item) [L690] struct L2 *item = zalloc_or_die(sizeof *item); [L692] CALL l3_insert(&item->down) [L681] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L681] RET, EXPR zalloc_or_die(sizeof *item) [L681] struct L3 *item = zalloc_or_die(sizeof *item); [L683] CALL l4_insert(&item->down) [L674] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L674] RET, EXPR zalloc_or_die(sizeof *item) [L674] struct L4 *item = zalloc_or_die(sizeof *item); [L675] CALL, EXPR zalloc_or_die(119U) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L675] RET, EXPR zalloc_or_die(119U) [L675] item->down = zalloc_or_die(119U) [L676] EXPR \read(**list) [L676] item->next = *list [L677] *list = item [L683] RET l4_insert(&item->down) [L684] COND FALSE !(__VERIFIER_nondet_int()) [L685] \read(**list) - UnprovableResult [Line: 727]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 728]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 728]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 642]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 642]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 737]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 737]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 675]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 675]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 677]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 677]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 236 locations, 70 error locations. Started 1 CEGAR loops. OverallTime: 34586.5ms, OverallIterations: 9, TraceHistogramMax: 6, EmptinessCheckTime: 20.1ms, AutomataDifference: 12449.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1470 SDtfs, 978 SDslu, 6969 SDs, 0 SdLazy, 7926 SolverSat, 430 SolverUnsat, 26 SolverUnknown, 0 SolverNotchecked, 8391.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 716 GetRequests, 559 SyntacticMatches, 17 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 11481.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=0, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 84.0ms AutomataMinimizationTime, 8 MinimizatonAttempts, 182 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 182.1ms SsaConstructionTime, 449.1ms SatisfiabilityAnalysisTime, 12096.2ms InterpolantComputationTime, 660 NumberOfCodeBlocks, 660 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 652 ConstructedInterpolants, 108 QuantifiedInterpolants, 2877 SizeOfPredicates, 46 NumberOfNonLiveVariables, 4081 ConjunctsInSsa, 265 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 1086/1200 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 [2021-08-27 05:29:43,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 05:29:44,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 05:29:44,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 05:29:45,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 05:29:45,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 05:29:45,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 05:29:45,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 05:29:45,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 05:29:45,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 05:29:45,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 05:29:45,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 05:29:45,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 05:29:45,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 05:29:45,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 05:29:45,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 05:29:45,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 05:29:45,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 05:29:45,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 05:29:45,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 05:29:45,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 05:29:45,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 05:29:45,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 05:29:45,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 05:29:45,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 05:29:45,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 05:29:45,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 05:29:45,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 05:29:45,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 05:29:45,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 05:29:45,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 05:29:45,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 05:29:45,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 05:29:45,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 05:29:45,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 05:29:45,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 05:29:45,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 05:29:45,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 05:29:45,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 05:29:45,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 05:29:45,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 05:29:45,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 05:29:45,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 05:29:45,068 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 05:29:45,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 05:29:45,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 05:29:45,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 05:29:45,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 05:29:45,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 05:29:45,069 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 05:29:45,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 05:29:45,070 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 05:29:45,070 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 05:29:45,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 05:29:45,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 05:29:45,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 05:29:45,070 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 05:29:45,070 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 05:29:45,070 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 05:29:45,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 05:29:45,071 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 05:29:45,071 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 05:29:45,071 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 05:29:45,071 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 05:29:45,071 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 05:29:45,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 05:29:45,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 05:29:45,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 05:29:45,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 05:29:45,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 05:29:45,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 05:29:45,072 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 05:29:45,074 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 05:29:45,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 05:29:45,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 05:29:45,075 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a645958c16cc940658b53821ab7b3c3bff1f224 [2021-08-27 05:29:45,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 05:29:45,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 05:29:45,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 05:29:45,399 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 05:29:45,400 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 05:29:45,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0234-2.i [2021-08-27 05:29:45,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59742ffad/2fb0af2d2c5c4b36acb5c53ee2b21e70/FLAGd8fc60504 [2021-08-27 05:29:45,821 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 05:29:45,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0234-2.i [2021-08-27 05:29:45,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59742ffad/2fb0af2d2c5c4b36acb5c53ee2b21e70/FLAGd8fc60504 [2021-08-27 05:29:45,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59742ffad/2fb0af2d2c5c4b36acb5c53ee2b21e70 [2021-08-27 05:29:45,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 05:29:45,846 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 05:29:45,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 05:29:45,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 05:29:45,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 05:29:45,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:29:45" (1/1) ... [2021-08-27 05:29:45,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ceb6946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:45, skipping insertion in model container [2021-08-27 05:29:45,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:29:45" (1/1) ... [2021-08-27 05:29:45,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 05:29:45,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 05:29:46,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 05:29:46,158 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 05:29:46,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 05:29:46,247 INFO L208 MainTranslator]: Completed translation [2021-08-27 05:29:46,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:46 WrapperNode [2021-08-27 05:29:46,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 05:29:46,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 05:29:46,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 05:29:46,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 05:29:46,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:46" (1/1) ... [2021-08-27 05:29:46,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:46" (1/1) ... [2021-08-27 05:29:46,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:46" (1/1) ... [2021-08-27 05:29:46,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:46" (1/1) ... [2021-08-27 05:29:46,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:46" (1/1) ... [2021-08-27 05:29:46,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:46" (1/1) ... [2021-08-27 05:29:46,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:46" (1/1) ... [2021-08-27 05:29:46,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 05:29:46,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 05:29:46,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 05:29:46,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 05:29:46,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:46" (1/1) ... [2021-08-27 05:29:46,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 05:29:46,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:29:46,388 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 05:29:46,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 05:29:46,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 05:29:46,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 05:29:46,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 05:29:46,443 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-27 05:29:46,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 05:29:46,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 05:29:46,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 05:29:46,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 05:29:46,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 05:29:46,445 INFO L138 BoogieDeclarations]: Found implementation of procedure calloc_model [2021-08-27 05:29:46,445 INFO L138 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2021-08-27 05:29:46,445 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_insert [2021-08-27 05:29:46,445 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_insert [2021-08-27 05:29:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_insert [2021-08-27 05:29:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_insert [2021-08-27 05:29:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_insert [2021-08-27 05:29:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_destroy [2021-08-27 05:29:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_destroy [2021-08-27 05:29:46,447 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_destroy [2021-08-27 05:29:46,449 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_destroy [2021-08-27 05:29:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_destroy [2021-08-27 05:29:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 05:29:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 05:29:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 05:29:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-27 05:29:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-08-27 05:29:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-08-27 05:29:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-27 05:29:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 05:29:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 05:29:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 05:29:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 05:29:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 05:29:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 05:29:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 05:29:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 05:29:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 05:29:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 05:29:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 05:29:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 05:29:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 05:29:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 05:29:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 05:29:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 05:29:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 05:29:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 05:29:46,454 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 05:29:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 05:29:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 05:29:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 05:29:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 05:29:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 05:29:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 05:29:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 05:29:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 05:29:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 05:29:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 05:29:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 05:29:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 05:29:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 05:29:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 05:29:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 05:29:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 05:29:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 05:29:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 05:29:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 05:29:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 05:29:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 05:29:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 05:29:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 05:29:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 05:29:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 05:29:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 05:29:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 05:29:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 05:29:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 05:29:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 05:29:46,462 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 05:29:46,462 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 05:29:46,462 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 05:29:46,462 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 05:29:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 05:29:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 05:29:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 05:29:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 05:29:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 05:29:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 05:29:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 05:29:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 05:29:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 05:29:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 05:29:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 05:29:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 05:29:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 05:29:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 05:29:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 05:29:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 05:29:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 05:29:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 05:29:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 05:29:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 05:29:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 05:29:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 05:29:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 05:29:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 05:29:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 05:29:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 05:29:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 05:29:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 05:29:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 05:29:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 05:29:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 05:29:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 05:29:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 05:29:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 05:29:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 05:29:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 05:29:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 05:29:46,468 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 05:29:46,468 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 05:29:46,468 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 05:29:46,468 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 05:29:46,468 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 05:29:46,468 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 05:29:46,468 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 05:29:46,469 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 05:29:46,469 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 05:29:46,470 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 05:29:46,482 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 05:29:46,482 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 05:29:46,483 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 05:29:46,483 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 05:29:46,484 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 05:29:46,484 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 05:29:46,484 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 05:29:46,484 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 05:29:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2021-08-27 05:29:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2021-08-27 05:29:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 05:29:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-08-27 05:29:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-08-27 05:29:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2021-08-27 05:29:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-08-27 05:29:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-08-27 05:29:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2021-08-27 05:29:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-08-27 05:29:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-08-27 05:29:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2021-08-27 05:29:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2021-08-27 05:29:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2021-08-27 05:29:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2021-08-27 05:29:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2021-08-27 05:29:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2021-08-27 05:29:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2021-08-27 05:29:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-08-27 05:29:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2021-08-27 05:29:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2021-08-27 05:29:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2021-08-27 05:29:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-08-27 05:29:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2021-08-27 05:29:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2021-08-27 05:29:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2021-08-27 05:29:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2021-08-27 05:29:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-08-27 05:29:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2021-08-27 05:29:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2021-08-27 05:29:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2021-08-27 05:29:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2021-08-27 05:29:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2021-08-27 05:29:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2021-08-27 05:29:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure index [2021-08-27 05:29:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2021-08-27 05:29:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-08-27 05:29:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2021-08-27 05:29:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2021-08-27 05:29:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-08-27 05:29:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2021-08-27 05:29:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2021-08-27 05:29:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2021-08-27 05:29:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2021-08-27 05:29:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-08-27 05:29:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2021-08-27 05:29:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2021-08-27 05:29:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2021-08-27 05:29:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2021-08-27 05:29:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2021-08-27 05:29:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure calloc_model [2021-08-27 05:29:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 05:29:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 05:29:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 05:29:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2021-08-27 05:29:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure l4_insert [2021-08-27 05:29:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 05:29:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 05:29:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure l3_insert [2021-08-27 05:29:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure l2_insert [2021-08-27 05:29:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure l1_insert [2021-08-27 05:29:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure l0_insert [2021-08-27 05:29:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure l4_destroy [2021-08-27 05:29:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 05:29:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure l3_destroy [2021-08-27 05:29:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure l2_destroy [2021-08-27 05:29:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure l1_destroy [2021-08-27 05:29:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure l0_destroy [2021-08-27 05:29:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 05:29:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 05:29:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-27 05:29:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 05:29:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 05:29:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 05:29:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-08-27 05:29:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-08-27 05:29:47,000 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 05:29:47,321 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 05:29:47,321 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-27 05:29:47,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:29:47 BoogieIcfgContainer [2021-08-27 05:29:47,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 05:29:47,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 05:29:47,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 05:29:47,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 05:29:47,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 05:29:45" (1/3) ... [2021-08-27 05:29:47,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25cda806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 05:29:47, skipping insertion in model container [2021-08-27 05:29:47,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:29:46" (2/3) ... [2021-08-27 05:29:47,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25cda806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 05:29:47, skipping insertion in model container [2021-08-27 05:29:47,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:29:47" (3/3) ... [2021-08-27 05:29:47,327 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0234-2.i [2021-08-27 05:29:47,330 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 05:29:47,331 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2021-08-27 05:29:47,356 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 05:29:47,360 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 05:29:47,360 INFO L340 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2021-08-27 05:29:47,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 113 states have (on average 1.761061946902655) internal successors, (199), 178 states have internal predecessors, (199), 20 states have call successors, (20), 15 states have call predecessors, (20), 15 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 05:29:47,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 05:29:47,375 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:47,375 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:47,376 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:47,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:47,379 INFO L82 PathProgramCache]: Analyzing trace with hash 245040585, now seen corresponding path program 1 times [2021-08-27 05:29:47,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:29:47,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430106662] [2021-08-27 05:29:47,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:47,387 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:29:47,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:29:47,389 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 05:29:47,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 05:29:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:47,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-27 05:29:47,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:47,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 05:29:47,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:29:47,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 05:29:47,672 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:29:47,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430106662] [2021-08-27 05:29:47,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430106662] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 05:29:47,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:29:47,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 05:29:47,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184606240] [2021-08-27 05:29:47,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-27 05:29:47,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 05:29:47,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-27 05:29:47,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 05:29:47,699 INFO L87 Difference]: Start difference. First operand has 213 states, 113 states have (on average 1.761061946902655) internal successors, (199), 178 states have internal predecessors, (199), 20 states have call successors, (20), 15 states have call predecessors, (20), 15 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 05:29:47,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:47,718 INFO L93 Difference]: Finished difference Result 213 states and 228 transitions. [2021-08-27 05:29:47,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 05:29:47,720 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-08-27 05:29:47,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:47,731 INFO L225 Difference]: With dead ends: 213 [2021-08-27 05:29:47,731 INFO L226 Difference]: Without dead ends: 210 [2021-08-27 05:29:47,732 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 05:29:47,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-08-27 05:29:47,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-08-27 05:29:47,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 107 states have (on average 1.7383177570093458) internal successors, (186), 176 states have internal predecessors, (186), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 05:29:47,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 225 transitions. [2021-08-27 05:29:47,787 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 225 transitions. Word has length 7 [2021-08-27 05:29:47,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:47,787 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 225 transitions. [2021-08-27 05:29:47,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 05:29:47,788 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 225 transitions. [2021-08-27 05:29:47,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-27 05:29:47,788 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:47,789 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:47,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-27 05:29:47,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 05:29:47,998 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting calloc_modelErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:47,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:47,999 INFO L82 PathProgramCache]: Analyzing trace with hash 2078620137, now seen corresponding path program 1 times [2021-08-27 05:29:47,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:29:47,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902621725] [2021-08-27 05:29:48,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:48,000 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:29:48,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:29:48,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 05:29:48,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 05:29:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:48,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 05:29:48,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:48,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 05:29:48,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 05:29:48,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:29:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 05:29:48,315 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:29:48,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902621725] [2021-08-27 05:29:48,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902621725] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 05:29:48,316 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:29:48,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 05:29:48,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560468045] [2021-08-27 05:29:48,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 05:29:48,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 05:29:48,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 05:29:48,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 05:29:48,318 INFO L87 Difference]: Start difference. First operand 210 states and 225 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 05:29:48,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:48,483 INFO L93 Difference]: Finished difference Result 209 states and 224 transitions. [2021-08-27 05:29:48,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 05:29:48,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-08-27 05:29:48,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:48,484 INFO L225 Difference]: With dead ends: 209 [2021-08-27 05:29:48,484 INFO L226 Difference]: Without dead ends: 209 [2021-08-27 05:29:48,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 05:29:48,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-08-27 05:29:48,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2021-08-27 05:29:48,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 107 states have (on average 1.7289719626168225) internal successors, (185), 175 states have internal predecessors, (185), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 05:29:48,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 224 transitions. [2021-08-27 05:29:48,492 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 224 transitions. Word has length 12 [2021-08-27 05:29:48,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:48,492 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 224 transitions. [2021-08-27 05:29:48,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 05:29:48,493 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 224 transitions. [2021-08-27 05:29:48,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-27 05:29:48,493 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:48,493 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:48,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 05:29:48,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 05:29:48,701 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting calloc_modelErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:48,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:48,701 INFO L82 PathProgramCache]: Analyzing trace with hash 2078620138, now seen corresponding path program 1 times [2021-08-27 05:29:48,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:29:48,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367411015] [2021-08-27 05:29:48,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:48,702 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:29:48,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:29:48,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 05:29:48,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 05:29:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:48,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 05:29:48,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:48,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-08-27 05:29:49,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 05:29:49,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:29:49,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 05:29:49,295 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:29:49,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367411015] [2021-08-27 05:29:49,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367411015] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 05:29:49,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:29:49,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 2] imperfect sequences [] total 6 [2021-08-27 05:29:49,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230260116] [2021-08-27 05:29:49,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 05:29:49,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 05:29:49,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 05:29:49,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-27 05:29:49,296 INFO L87 Difference]: Start difference. First operand 209 states and 224 transitions. Second operand has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 05:29:50,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:50,836 INFO L93 Difference]: Finished difference Result 219 states and 234 transitions. [2021-08-27 05:29:50,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 05:29:50,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-08-27 05:29:50,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:50,840 INFO L225 Difference]: With dead ends: 219 [2021-08-27 05:29:50,840 INFO L226 Difference]: Without dead ends: 219 [2021-08-27 05:29:50,840 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 233.8ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-27 05:29:50,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-08-27 05:29:50,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-08-27 05:29:50,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 113 states have (on average 1.6902654867256637) internal successors, (191), 181 states have internal predecessors, (191), 22 states have call successors, (22), 17 states have call predecessors, (22), 16 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-08-27 05:29:50,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 234 transitions. [2021-08-27 05:29:50,848 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 234 transitions. Word has length 12 [2021-08-27 05:29:50,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:50,849 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 234 transitions. [2021-08-27 05:29:50,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 05:29:50,849 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 234 transitions. [2021-08-27 05:29:50,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-08-27 05:29:50,851 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:50,851 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:50,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-08-27 05:29:51,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 05:29:51,058 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:51,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:51,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1253485173, now seen corresponding path program 1 times [2021-08-27 05:29:51,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:29:51,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050806825] [2021-08-27 05:29:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:51,060 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:29:51,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:29:51,063 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 05:29:51,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 05:29:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:51,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 05:29:51,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:51,837 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-08-27 05:29:51,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:29:53,328 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-08-27 05:29:53,328 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:29:53,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050806825] [2021-08-27 05:29:53,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050806825] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-27 05:29:53,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 05:29:53,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2021-08-27 05:29:53,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006400901] [2021-08-27 05:29:53,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 05:29:53,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 05:29:53,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 05:29:53,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-27 05:29:53,330 INFO L87 Difference]: Start difference. First operand 219 states and 234 transitions. Second operand has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-08-27 05:29:53,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:53,696 INFO L93 Difference]: Finished difference Result 236 states and 251 transitions. [2021-08-27 05:29:53,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 05:29:53,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 123 [2021-08-27 05:29:53,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:53,698 INFO L225 Difference]: With dead ends: 236 [2021-08-27 05:29:53,698 INFO L226 Difference]: Without dead ends: 220 [2021-08-27 05:29:53,699 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 650.4ms TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-08-27 05:29:53,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-08-27 05:29:53,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-08-27 05:29:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 114 states have (on average 1.6842105263157894) internal successors, (192), 182 states have internal predecessors, (192), 22 states have call successors, (22), 17 states have call predecessors, (22), 16 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-08-27 05:29:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 235 transitions. [2021-08-27 05:29:53,704 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 235 transitions. Word has length 123 [2021-08-27 05:29:53,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:53,705 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 235 transitions. [2021-08-27 05:29:53,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-08-27 05:29:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 235 transitions. [2021-08-27 05:29:53,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-08-27 05:29:53,706 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:53,707 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:53,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 05:29:53,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 05:29:53,918 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:53,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:53,918 INFO L82 PathProgramCache]: Analyzing trace with hash 717300927, now seen corresponding path program 1 times [2021-08-27 05:29:53,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:29:53,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132227065] [2021-08-27 05:29:53,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:29:53,919 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:29:53,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:29:53,920 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 05:29:53,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 05:29:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:29:54,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 05:29:54,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:54,789 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 95 proven. 1 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-08-27 05:29:54,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:29:56,299 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2021-08-27 05:29:56,299 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:29:56,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132227065] [2021-08-27 05:29:56,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132227065] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 05:29:56,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 05:29:56,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-08-27 05:29:56,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262720287] [2021-08-27 05:29:56,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 05:29:56,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 05:29:56,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 05:29:56,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-08-27 05:29:56,302 INFO L87 Difference]: Start difference. First operand 220 states and 235 transitions. Second operand has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 6 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2021-08-27 05:29:56,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:29:56,790 INFO L93 Difference]: Finished difference Result 237 states and 252 transitions. [2021-08-27 05:29:56,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 05:29:56,791 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 6 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 129 [2021-08-27 05:29:56,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:29:56,793 INFO L225 Difference]: With dead ends: 237 [2021-08-27 05:29:56,793 INFO L226 Difference]: Without dead ends: 221 [2021-08-27 05:29:56,793 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 776.1ms TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2021-08-27 05:29:56,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-08-27 05:29:56,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2021-08-27 05:29:56,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 115 states have (on average 1.6782608695652175) internal successors, (193), 183 states have internal predecessors, (193), 22 states have call successors, (22), 17 states have call predecessors, (22), 16 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-08-27 05:29:56,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 236 transitions. [2021-08-27 05:29:56,821 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 236 transitions. Word has length 129 [2021-08-27 05:29:56,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:29:56,821 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 236 transitions. [2021-08-27 05:29:56,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 6 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2021-08-27 05:29:56,822 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 236 transitions. [2021-08-27 05:29:56,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-08-27 05:29:56,823 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:29:56,823 INFO L512 BasicCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:29:56,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 05:29:57,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 05:29:57,034 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:29:57,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:29:57,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1925186805, now seen corresponding path program 2 times [2021-08-27 05:29:57,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:29:57,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323114844] [2021-08-27 05:29:57,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 05:29:57,035 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:29:57,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:29:57,036 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 05:29:57,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 05:29:57,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 05:29:57,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 05:29:57,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 05:29:57,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:29:58,037 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-08-27 05:29:58,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:29:59,588 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-08-27 05:29:59,589 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:29:59,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323114844] [2021-08-27 05:29:59,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323114844] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 05:29:59,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 05:29:59,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-08-27 05:29:59,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212570450] [2021-08-27 05:29:59,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 05:29:59,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 05:29:59,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 05:29:59,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-08-27 05:29:59,591 INFO L87 Difference]: Start difference. First operand 221 states and 236 transitions. Second operand has 17 states, 13 states have (on average 4.615384615384615) internal successors, (60), 17 states have internal predecessors, (60), 6 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2021-08-27 05:30:00,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:30:00,219 INFO L93 Difference]: Finished difference Result 238 states and 253 transitions. [2021-08-27 05:30:00,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 05:30:00,219 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 4.615384615384615) internal successors, (60), 17 states have internal predecessors, (60), 6 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 135 [2021-08-27 05:30:00,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:30:00,220 INFO L225 Difference]: With dead ends: 238 [2021-08-27 05:30:00,220 INFO L226 Difference]: Without dead ends: 222 [2021-08-27 05:30:00,221 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 253 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 927.1ms TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2021-08-27 05:30:00,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-08-27 05:30:00,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2021-08-27 05:30:00,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 116 states have (on average 1.6724137931034482) internal successors, (194), 184 states have internal predecessors, (194), 22 states have call successors, (22), 17 states have call predecessors, (22), 16 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-08-27 05:30:00,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 237 transitions. [2021-08-27 05:30:00,225 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 237 transitions. Word has length 135 [2021-08-27 05:30:00,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:30:00,225 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 237 transitions. [2021-08-27 05:30:00,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 4.615384615384615) internal successors, (60), 17 states have internal predecessors, (60), 6 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2021-08-27 05:30:00,226 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 237 transitions. [2021-08-27 05:30:00,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-08-27 05:30:00,227 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:30:00,227 INFO L512 BasicCegarLoop]: trace histogram [18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:30:00,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 05:30:00,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 05:30:00,440 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 66 more)] === [2021-08-27 05:30:00,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:30:00,440 INFO L82 PathProgramCache]: Analyzing trace with hash 983492287, now seen corresponding path program 3 times [2021-08-27 05:30:00,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:30:00,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233927723] [2021-08-27 05:30:00,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 05:30:00,441 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:30:00,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:30:00,442 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 05:30:00,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 05:30:00,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-27 05:30:00,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 05:30:00,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 05:30:00,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:30:01,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 05:30:01,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-08-27 05:30:01,421 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-08-27 05:30:01,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 32 [2021-08-27 05:30:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 239 proven. 8 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2021-08-27 05:30:01,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:30:16,351 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:30:16,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233927723] [2021-08-27 05:30:16,352 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 05:30:16,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [539127545] [2021-08-27 05:30:16,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 05:30:16,352 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 05:30:16,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 05:30:16,354 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 05:30:16,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-08-27 05:30:17,112 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-27 05:30:17,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 05:30:17,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 05:30:17,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:30:17,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 05:30:19,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 05:30:23,645 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-27 05:30:23,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2021-08-27 05:30:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 259 proven. 7 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-08-27 05:30:23,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:30:31,988 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 05:30:31,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401336647] [2021-08-27 05:30:31,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 05:30:31,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:30:31,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:30:31,990 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 05:30:31,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-27 05:30:32,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-27 05:30:32,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 05:30:32,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 05:30:32,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:30:32,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 05:30:32,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-08-27 05:30:33,068 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-08-27 05:30:33,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2021-08-27 05:30:33,098 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 239 proven. 8 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2021-08-27 05:30:33,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:30:41,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 05:30:41,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:30:41,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 05:30:41,577 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 05:30:41,577 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 05:30:41,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr0REQUIRES_VIOLATION [2021-08-27 05:30:41,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:30:41,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:30:41,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:30:41,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:30:41,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr0REQUIRES_VIOLATION [2021-08-27 05:30:41,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr1REQUIRES_VIOLATION [2021-08-27 05:30:41,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr2REQUIRES_VIOLATION [2021-08-27 05:30:41,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr3REQUIRES_VIOLATION [2021-08-27 05:30:41,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr4REQUIRES_VIOLATION [2021-08-27 05:30:41,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr5REQUIRES_VIOLATION [2021-08-27 05:30:41,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr0REQUIRES_VIOLATION [2021-08-27 05:30:41,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr1REQUIRES_VIOLATION [2021-08-27 05:30:41,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr2REQUIRES_VIOLATION [2021-08-27 05:30:41,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr3REQUIRES_VIOLATION [2021-08-27 05:30:41,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr4REQUIRES_VIOLATION [2021-08-27 05:30:41,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr5REQUIRES_VIOLATION [2021-08-27 05:30:41,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:30:41,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:30:41,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr0REQUIRES_VIOLATION [2021-08-27 05:30:41,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr1REQUIRES_VIOLATION [2021-08-27 05:30:41,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr2REQUIRES_VIOLATION [2021-08-27 05:30:41,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr3REQUIRES_VIOLATION [2021-08-27 05:30:41,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr4REQUIRES_VIOLATION [2021-08-27 05:30:41,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr5REQUIRES_VIOLATION [2021-08-27 05:30:41,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr0REQUIRES_VIOLATION [2021-08-27 05:30:41,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr1REQUIRES_VIOLATION [2021-08-27 05:30:41,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:30:41,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:30:41,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:30:41,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:30:41,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-08-27 05:30:41,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-08-27 05:30:41,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 05:30:41,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:30:41,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:30:41,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:30:41,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:30:41,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:30:41,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:30:41,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:30:41,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:30:41,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:30:41,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr0REQUIRES_VIOLATION [2021-08-27 05:30:41,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr1REQUIRES_VIOLATION [2021-08-27 05:30:41,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr2REQUIRES_VIOLATION [2021-08-27 05:30:41,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr3REQUIRES_VIOLATION [2021-08-27 05:30:41,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr4REQUIRES_VIOLATION [2021-08-27 05:30:41,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr5REQUIRES_VIOLATION [2021-08-27 05:30:41,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr1REQUIRES_VIOLATION [2021-08-27 05:30:41,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr2REQUIRES_VIOLATION [2021-08-27 05:30:41,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr3REQUIRES_VIOLATION [2021-08-27 05:30:41,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr4REQUIRES_VIOLATION [2021-08-27 05:30:41,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr5REQUIRES_VIOLATION [2021-08-27 05:30:41,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr6REQUIRES_VIOLATION [2021-08-27 05:30:41,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr7REQUIRES_VIOLATION [2021-08-27 05:30:41,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2021-08-27 05:30:41,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-27 05:30:42,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-27 05:30:42,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:30:42,220 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 05:30:42,224 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:30:42,225 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:30:42,225 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:30:42,225 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:30:42,225 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:30:42,225 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:30:42,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 05:30:42 BoogieIcfgContainer [2021-08-27 05:30:42,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 05:30:42,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 05:30:42,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 05:30:42,245 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 05:30:42,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:29:47" (3/4) ... [2021-08-27 05:30:42,247 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 05:30:42,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 05:30:42,248 INFO L168 Benchmark]: Toolchain (without parser) took 56402.02 ms. Allocated memory was 54.5 MB in the beginning and 180.4 MB in the end (delta: 125.8 MB). Free memory was 30.2 MB in the beginning and 117.1 MB in the end (delta: -86.8 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. [2021-08-27 05:30:42,248 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 05:30:42,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.93 ms. Allocated memory was 54.5 MB in the beginning and 77.6 MB in the end (delta: 23.1 MB). Free memory was 30.1 MB in the beginning and 49.3 MB in the end (delta: -19.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-08-27 05:30:42,251 INFO L168 Benchmark]: Boogie Preprocessor took 101.83 ms. Allocated memory is still 77.6 MB. Free memory was 49.3 MB in the beginning and 45.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 05:30:42,251 INFO L168 Benchmark]: RCFGBuilder took 970.66 ms. Allocated memory was 77.6 MB in the beginning and 102.8 MB in the end (delta: 25.2 MB). Free memory was 45.1 MB in the beginning and 74.3 MB in the end (delta: -29.2 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2021-08-27 05:30:42,251 INFO L168 Benchmark]: TraceAbstraction took 54920.67 ms. Allocated memory was 102.8 MB in the beginning and 180.4 MB in the end (delta: 77.6 MB). Free memory was 73.7 MB in the beginning and 118.1 MB in the end (delta: -44.4 MB). Peak memory consumption was 106.3 MB. Max. memory is 16.1 GB. [2021-08-27 05:30:42,251 INFO L168 Benchmark]: Witness Printer took 2.86 ms. Allocated memory is still 180.4 MB. Free memory was 118.1 MB in the beginning and 117.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 05:30:42,253 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 54.5 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 401.93 ms. Allocated memory was 54.5 MB in the beginning and 77.6 MB in the end (delta: 23.1 MB). Free memory was 30.1 MB in the beginning and 49.3 MB in the end (delta: -19.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.83 ms. Allocated memory is still 77.6 MB. Free memory was 49.3 MB in the beginning and 45.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 970.66 ms. Allocated memory was 77.6 MB in the beginning and 102.8 MB in the end (delta: 25.2 MB). Free memory was 45.1 MB in the beginning and 74.3 MB in the end (delta: -29.2 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 54920.67 ms. Allocated memory was 102.8 MB in the beginning and 180.4 MB in the end (delta: 77.6 MB). Free memory was 73.7 MB in the beginning and 118.1 MB in the end (delta: -44.4 MB). Peak memory consumption was 106.3 MB. Max. memory is 16.1 GB. * Witness Printer took 2.86 ms. Allocated memory is still 180.4 MB. Free memory was 118.1 MB in the beginning and 117.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 675]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L766] static struct L0 *list; [L768] CALL l0_insert(&list) [L708] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L708] RET, EXPR zalloc_or_die(sizeof *item) [L708] struct L0 *item = zalloc_or_die(sizeof *item); [L710] CALL l1_insert(&item->down) [L699] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L699] RET, EXPR zalloc_or_die(sizeof *item) [L699] struct L1 *item = zalloc_or_die(sizeof *item); [L701] CALL l2_insert(&item->down) [L690] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L690] RET, EXPR zalloc_or_die(sizeof *item) [L690] struct L2 *item = zalloc_or_die(sizeof *item); [L692] CALL l3_insert(&item->down) [L681] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L681] RET, EXPR zalloc_or_die(sizeof *item) [L681] struct L3 *item = zalloc_or_die(sizeof *item); [L683] CALL l4_insert(&item->down) [L674] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L674] RET, EXPR zalloc_or_die(sizeof *item) [L674] struct L4 *item = zalloc_or_die(sizeof *item); [L675] CALL, EXPR zalloc_or_die(119U) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L675] RET, EXPR zalloc_or_die(119U) [L675] item->down = zalloc_or_die(119U) - UnprovableResult [Line: 727]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 728]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 728]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 642]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 642]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 737]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 737]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 675]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 677]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 677]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 237 locations, 70 error locations. Started 1 CEGAR loops. OverallTime: 54864.4ms, OverallIterations: 7, TraceHistogramMax: 18, EmptinessCheckTime: 14.2ms, AutomataDifference: 3258.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1307 SDtfs, 70 SDslu, 5724 SDs, 0 SdLazy, 606 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2139.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 844 GetRequests, 783 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2599.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=6, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 99.0ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 148.1ms SsaConstructionTime, 478.2ms SatisfiabilityAnalysisTime, 6721.5ms InterpolantComputationTime, 418 NumberOfCodeBlocks, 418 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 824 ConstructedInterpolants, 0 QuantifiedInterpolants, 1251 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1959 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 1575/1818 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 [2021-08-27 05:30:42,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...