./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/test-0235-3.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-0235-3.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 3800c354b942cbeb9da811279120cfec18cb92a7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-0235-3.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 3800c354b942cbeb9da811279120cfec18cb92a7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 05:30:12,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 05:30:12,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 05:30:12,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 05:30:12,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 05:30:12,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 05:30:12,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 05:30:12,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 05:30:12,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 05:30:12,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 05:30:12,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 05:30:12,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 05:30:12,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 05:30:12,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 05:30:12,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 05:30:12,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 05:30:12,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 05:30:12,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 05:30:12,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 05:30:12,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 05:30:12,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 05:30:12,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 05:30:12,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 05:30:12,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 05:30:12,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 05:30:12,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 05:30:12,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 05:30:12,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 05:30:12,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 05:30:12,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 05:30:12,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 05:30:12,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 05:30:12,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 05:30:12,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 05:30:12,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 05:30:12,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 05:30:12,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 05:30:12,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 05:30:12,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 05:30:12,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 05:30:12,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 05:30:12,135 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 05:30:12,154 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 05:30:12,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 05:30:12,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 05:30:12,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 05:30:12,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 05:30:12,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 05:30:12,155 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 05:30:12,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 05:30:12,155 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 05:30:12,156 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 05:30:12,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 05:30:12,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 05:30:12,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 05:30:12,156 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 05:30:12,156 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 05:30:12,156 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 05:30:12,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 05:30:12,162 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 05:30:12,162 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 05:30:12,162 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 05:30:12,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 05:30:12,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 05:30:12,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 05:30:12,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 05:30:12,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 05:30:12,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 05:30:12,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 05:30:12,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 05:30:12,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 05:30:12,163 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3800c354b942cbeb9da811279120cfec18cb92a7 [2021-08-27 05:30:12,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 05:30:12,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 05:30:12,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 05:30:12,391 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 05:30:12,391 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 05:30:12,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0235-3.i [2021-08-27 05:30:12,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31089dc82/d1538976998349b88af92cf07cf21a41/FLAGfc87a0efe [2021-08-27 05:30:12,838 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 05:30:12,838 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0235-3.i [2021-08-27 05:30:12,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31089dc82/d1538976998349b88af92cf07cf21a41/FLAGfc87a0efe [2021-08-27 05:30:12,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31089dc82/d1538976998349b88af92cf07cf21a41 [2021-08-27 05:30:12,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 05:30:12,871 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 05:30:12,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 05:30:12,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 05:30:12,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 05:30:12,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:30:12" (1/1) ... [2021-08-27 05:30:12,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@603fe58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:30:12, skipping insertion in model container [2021-08-27 05:30:12,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:30:12" (1/1) ... [2021-08-27 05:30:12,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 05:30:12,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 05:30:13,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 05:30:13,164 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 05:30:13,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 05:30:13,250 INFO L208 MainTranslator]: Completed translation [2021-08-27 05:30:13,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:30:13 WrapperNode [2021-08-27 05:30:13,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 05:30:13,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 05:30:13,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 05:30:13,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 05:30:13,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:30:13" (1/1) ... [2021-08-27 05:30:13,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:30:13" (1/1) ... [2021-08-27 05:30:13,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:30:13" (1/1) ... [2021-08-27 05:30:13,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:30:13" (1/1) ... [2021-08-27 05:30:13,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:30:13" (1/1) ... [2021-08-27 05:30:13,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:30:13" (1/1) ... [2021-08-27 05:30:13,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:30:13" (1/1) ... [2021-08-27 05:30:13,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 05:30:13,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 05:30:13,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 05:30:13,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 05:30:13,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:30:13" (1/1) ... [2021-08-27 05:30:13,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 05:30:13,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:30:13,352 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 05:30:13,380 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 05:30:13,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 05:30:13,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 05:30:13,406 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-27 05:30:13,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 05:30:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 05:30:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 05:30:13,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 05:30:13,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 05:30:13,408 INFO L138 BoogieDeclarations]: Found implementation of procedure calloc_model [2021-08-27 05:30:13,408 INFO L138 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2021-08-27 05:30:13,408 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_insert [2021-08-27 05:30:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_insert [2021-08-27 05:30:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_insert [2021-08-27 05:30:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_insert [2021-08-27 05:30:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_insert [2021-08-27 05:30:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_destroy [2021-08-27 05:30:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_destroy [2021-08-27 05:30:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_destroy [2021-08-27 05:30:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_destroy [2021-08-27 05:30:13,410 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_destroy [2021-08-27 05:30:13,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 05:30:13,410 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 05:30:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 05:30:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-27 05:30:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-08-27 05:30:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-08-27 05:30:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-27 05:30:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 05:30:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 05:30:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 05:30:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 05:30:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 05:30:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 05:30:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 05:30:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 05:30:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 05:30:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 05:30:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 05:30:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 05:30:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 05:30:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 05:30:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 05:30:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 05:30:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 05:30:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 05:30:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 05:30:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 05:30:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 05:30:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 05:30:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 05:30:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 05:30:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 05:30:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 05:30:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 05:30:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 05:30:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 05:30:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 05:30:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 05:30:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 05:30:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 05:30:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 05:30:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 05:30:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 05:30:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 05:30:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 05:30:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 05:30:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 05:30:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 05:30:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 05:30:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 05:30:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 05:30:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 05:30:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 05:30:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 05:30:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 05:30:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 05:30:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 05:30:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 05:30:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 05:30:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 05:30:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 05:30:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 05:30:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 05:30:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 05:30:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 05:30:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 05:30:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 05:30:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 05:30:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 05:30:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 05:30:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 05:30:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 05:30:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 05:30:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 05:30:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 05:30:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 05:30:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 05:30:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 05:30:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 05:30:13,425 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 05:30:13,425 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2021-08-27 05:30:13,426 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2021-08-27 05:30:13,426 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 05:30:13,426 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-08-27 05:30:13,428 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-08-27 05:30:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2021-08-27 05:30:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-08-27 05:30:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-08-27 05:30:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2021-08-27 05:30:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-08-27 05:30:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-08-27 05:30:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2021-08-27 05:30:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2021-08-27 05:30:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2021-08-27 05:30:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2021-08-27 05:30:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2021-08-27 05:30:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2021-08-27 05:30:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2021-08-27 05:30:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-08-27 05:30:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2021-08-27 05:30:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2021-08-27 05:30:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2021-08-27 05:30:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-08-27 05:30:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2021-08-27 05:30:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2021-08-27 05:30:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2021-08-27 05:30:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2021-08-27 05:30:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-08-27 05:30:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2021-08-27 05:30:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2021-08-27 05:30:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2021-08-27 05:30:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2021-08-27 05:30:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2021-08-27 05:30:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2021-08-27 05:30:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure index [2021-08-27 05:30:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2021-08-27 05:30:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-08-27 05:30:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2021-08-27 05:30:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2021-08-27 05:30:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-08-27 05:30:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2021-08-27 05:30:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2021-08-27 05:30:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2021-08-27 05:30:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2021-08-27 05:30:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-08-27 05:30:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2021-08-27 05:30:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2021-08-27 05:30:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2021-08-27 05:30:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2021-08-27 05:30:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2021-08-27 05:30:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure calloc_model [2021-08-27 05:30:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 05:30:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 05:30:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 05:30:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2021-08-27 05:30:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure l4_insert [2021-08-27 05:30:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 05:30:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 05:30:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure l3_insert [2021-08-27 05:30:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure l2_insert [2021-08-27 05:30:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure l1_insert [2021-08-27 05:30:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure l0_insert [2021-08-27 05:30:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure l4_destroy [2021-08-27 05:30:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 05:30:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure l3_destroy [2021-08-27 05:30:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure l2_destroy [2021-08-27 05:30:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure l1_destroy [2021-08-27 05:30:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure l0_destroy [2021-08-27 05:30:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 05:30:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 05:30:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 05:30:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 05:30:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 05:30:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 05:30:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 05:30:13,891 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 05:30:14,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 05:30:14,151 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-27 05:30:14,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:30:14 BoogieIcfgContainer [2021-08-27 05:30:14,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 05:30:14,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 05:30:14,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 05:30:14,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 05:30:14,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 05:30:12" (1/3) ... [2021-08-27 05:30:14,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476d1a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 05:30:14, skipping insertion in model container [2021-08-27 05:30:14,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:30:13" (2/3) ... [2021-08-27 05:30:14,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476d1a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 05:30:14, skipping insertion in model container [2021-08-27 05:30:14,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:30:14" (3/3) ... [2021-08-27 05:30:14,160 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0235-3.i [2021-08-27 05:30:14,164 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 05:30:14,164 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 89 error locations. [2021-08-27 05:30:14,200 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 05:30:14,206 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 05:30:14,207 INFO L340 AbstractCegarLoop]: Starting to check reachability of 89 error locations. [2021-08-27 05:30:14,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 276 states, 151 states have (on average 1.7615894039735098) internal successors, (266), 235 states have internal predecessors, (266), 26 states have call successors, (26), 15 states have call predecessors, (26), 15 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-08-27 05:30:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 05:30:14,234 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:30:14,234 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:30:14,235 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:30:14,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:30:14,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1939617680, now seen corresponding path program 1 times [2021-08-27 05:30:14,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:30:14,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815574871] [2021-08-27 05:30:14,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:14,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:30:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:30:14,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-27 05:30:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:30:14,415 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 05:30:14,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:30:14,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815574871] [2021-08-27 05:30:14,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815574871] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 05:30:14,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:30:14,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 05:30:14,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309358458] [2021-08-27 05:30:14,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 05:30:14,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:30:14,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 05:30:14,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 05:30:14,440 INFO L87 Difference]: Start difference. First operand has 276 states, 151 states have (on average 1.7615894039735098) internal successors, (266), 235 states have internal predecessors, (266), 26 states have call successors, (26), 15 states have call predecessors, (26), 15 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) 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 05:30:14,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:30:14,924 INFO L93 Difference]: Finished difference Result 386 states and 447 transitions. [2021-08-27 05:30:14,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 05:30:14,928 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 05:30:14,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:30:14,943 INFO L225 Difference]: With dead ends: 386 [2021-08-27 05:30:14,943 INFO L226 Difference]: Without dead ends: 383 [2021-08-27 05:30:14,945 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 05:30:14,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-08-27 05:30:14,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 273. [2021-08-27 05:30:14,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 145 states have (on average 1.7448275862068965) internal successors, (253), 233 states have internal predecessors, (253), 26 states have call successors, (26), 15 states have call predecessors, (26), 14 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-08-27 05:30:14,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 304 transitions. [2021-08-27 05:30:14,987 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 304 transitions. Word has length 7 [2021-08-27 05:30:14,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:30:14,987 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 304 transitions. [2021-08-27 05:30:14,987 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 05:30:14,987 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 304 transitions. [2021-08-27 05:30:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-27 05:30:14,988 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:30:14,988 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:30:14,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 05:30:14,988 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting calloc_modelErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:30:14,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:30:14,989 INFO L82 PathProgramCache]: Analyzing trace with hash 127402385, now seen corresponding path program 1 times [2021-08-27 05:30:14,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:30:14,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64514300] [2021-08-27 05:30:14,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:14,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:30:15,003 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:30:15,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700146405] [2021-08-27 05:30:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:15,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:30:15,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:30:15,009 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 05:30:15,012 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 05:30:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:30:15,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 05:30:15,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:30:15,279 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 05:30:15,287 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 05:30:15,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:30:15,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64514300] [2021-08-27 05:30:15,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:30:15,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700146405] [2021-08-27 05:30:15,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700146405] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 05:30:15,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:30:15,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 05:30:15,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445523339] [2021-08-27 05:30:15,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 05:30:15,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:30:15,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 05:30:15,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 05:30:15,290 INFO L87 Difference]: Start difference. First operand 273 states and 304 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 05:30:15,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:30:15,398 INFO L93 Difference]: Finished difference Result 272 states and 303 transitions. [2021-08-27 05:30:15,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 05:30:15,398 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 05:30:15,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:30:15,399 INFO L225 Difference]: With dead ends: 272 [2021-08-27 05:30:15,399 INFO L226 Difference]: Without dead ends: 272 [2021-08-27 05:30:15,400 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 05:30:15,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-08-27 05:30:15,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2021-08-27 05:30:15,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 145 states have (on average 1.7379310344827585) internal successors, (252), 232 states have internal predecessors, (252), 26 states have call successors, (26), 15 states have call predecessors, (26), 14 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-08-27 05:30:15,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 303 transitions. [2021-08-27 05:30:15,424 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 303 transitions. Word has length 12 [2021-08-27 05:30:15,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:30:15,425 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 303 transitions. [2021-08-27 05:30:15,425 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 05:30:15,425 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 303 transitions. [2021-08-27 05:30:15,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-27 05:30:15,425 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:30:15,425 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:30:15,447 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 05:30:15,645 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 05:30:15,645 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting calloc_modelErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:30:15,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:30:15,646 INFO L82 PathProgramCache]: Analyzing trace with hash 127402386, now seen corresponding path program 1 times [2021-08-27 05:30:15,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:30:15,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27881173] [2021-08-27 05:30:15,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:15,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:30:15,655 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:30:15,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [723006360] [2021-08-27 05:30:15,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:15,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:30:15,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:30:15,659 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 05:30:15,708 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 05:30:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:30:15,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 05:30:15,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:30:16,048 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 05:30:16,071 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 05:30:16,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:30:16,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27881173] [2021-08-27 05:30:16,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:30:16,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723006360] [2021-08-27 05:30:16,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723006360] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 05:30:16,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:30:16,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 05:30:16,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577516159] [2021-08-27 05:30:16,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 05:30:16,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:30:16,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 05:30:16,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-27 05:30:16,073 INFO L87 Difference]: Start difference. First operand 272 states and 303 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 05:30:16,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:30:16,226 INFO L93 Difference]: Finished difference Result 271 states and 302 transitions. [2021-08-27 05:30:16,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 05:30:16,226 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 05:30:16,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:30:16,228 INFO L225 Difference]: With dead ends: 271 [2021-08-27 05:30:16,228 INFO L226 Difference]: Without dead ends: 271 [2021-08-27 05:30:16,228 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 35.3ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-27 05:30:16,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-08-27 05:30:16,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2021-08-27 05:30:16,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 144 states have (on average 1.7430555555555556) internal successors, (251), 231 states have internal predecessors, (251), 26 states have call successors, (26), 15 states have call predecessors, (26), 14 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-08-27 05:30:16,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2021-08-27 05:30:16,236 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 12 [2021-08-27 05:30:16,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:30:16,237 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2021-08-27 05:30:16,237 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 05:30:16,237 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2021-08-27 05:30:16,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-08-27 05:30:16,239 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:30:16,240 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 05:30:16,266 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 05:30:16,444 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 05:30:16,445 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:30:16,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:30:16,445 INFO L82 PathProgramCache]: Analyzing trace with hash -681853238, now seen corresponding path program 1 times [2021-08-27 05:30:16,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:30:16,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946464069] [2021-08-27 05:30:16,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:16,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:30:16,476 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:30:16,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2073927718] [2021-08-27 05:30:16,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:16,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:30:16,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:30:16,481 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 05:30:16,496 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 05:30:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:30:16,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-27 05:30:16,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:30:17,156 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 05:30:17,268 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 05:30:17,268 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 05:30:17,282 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 05:30:17,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:30:17,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946464069] [2021-08-27 05:30:17,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:30:17,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073927718] [2021-08-27 05:30:17,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073927718] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 05:30:17,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-27 05:30:17,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-08-27 05:30:17,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914489299] [2021-08-27 05:30:17,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 05:30:17,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:30:17,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 05:30:17,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-08-27 05:30:17,284 INFO L87 Difference]: Start difference. First operand 271 states and 302 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 05:30:18,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:30:18,457 INFO L93 Difference]: Finished difference Result 470 states and 555 transitions. [2021-08-27 05:30:18,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 05:30:18,457 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 05:30:18,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:30:18,463 INFO L225 Difference]: With dead ends: 470 [2021-08-27 05:30:18,463 INFO L226 Difference]: Without dead ends: 470 [2021-08-27 05:30:18,463 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 205.9ms TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2021-08-27 05:30:18,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-08-27 05:30:18,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 269. [2021-08-27 05:30:18,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 144 states have (on average 1.7291666666666667) internal successors, (249), 229 states have internal predecessors, (249), 26 states have call successors, (26), 15 states have call predecessors, (26), 14 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-08-27 05:30:18,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 300 transitions. [2021-08-27 05:30:18,478 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 300 transitions. Word has length 123 [2021-08-27 05:30:18,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:30:18,481 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 300 transitions. [2021-08-27 05:30:18,481 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 05:30:18,481 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 300 transitions. [2021-08-27 05:30:18,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-08-27 05:30:18,483 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:30:18,484 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 05:30:18,502 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 05:30:18,688 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 05:30:18,689 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting l4_insertErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:30:18,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:30:18,689 INFO L82 PathProgramCache]: Analyzing trace with hash -681853237, now seen corresponding path program 1 times [2021-08-27 05:30:18,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:30:18,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73132126] [2021-08-27 05:30:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:18,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:30:18,714 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:30:18,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890001013] [2021-08-27 05:30:18,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:18,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:30:18,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:30:18,719 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 05:30:18,720 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 05:30:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:30:19,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 55 conjunts are in the unsatisfiable core [2021-08-27 05:30:19,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:30:19,230 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 05:30:19,725 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 05:30:19,729 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 05:30:19,905 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-08-27 05:30:19,905 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 05:30:19,918 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 05:30:19,919 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 05:30:20,262 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 05:30:20,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:30:20,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73132126] [2021-08-27 05:30:20,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:30:20,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890001013] [2021-08-27 05:30:20,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890001013] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 05:30:20,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-27 05:30:20,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-08-27 05:30:20,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621468654] [2021-08-27 05:30:20,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-27 05:30:20,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:30:20,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 05:30:20,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2021-08-27 05:30:20,265 INFO L87 Difference]: Start difference. First operand 269 states and 300 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 05:30:22,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:30:22,898 INFO L93 Difference]: Finished difference Result 381 states and 446 transitions. [2021-08-27 05:30:22,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 05:30:22,898 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 05:30:22,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:30:22,900 INFO L225 Difference]: With dead ends: 381 [2021-08-27 05:30:22,900 INFO L226 Difference]: Without dead ends: 381 [2021-08-27 05:30:22,901 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 106 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1063.2ms TimeCoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2021-08-27 05:30:22,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-08-27 05:30:22,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 267. [2021-08-27 05:30:22,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 144 states have (on average 1.7152777777777777) internal successors, (247), 227 states have internal predecessors, (247), 26 states have call successors, (26), 15 states have call predecessors, (26), 14 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-08-27 05:30:22,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 298 transitions. [2021-08-27 05:30:22,907 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 298 transitions. Word has length 123 [2021-08-27 05:30:22,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:30:22,907 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 298 transitions. [2021-08-27 05:30:22,907 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 05:30:22,907 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 298 transitions. [2021-08-27 05:30:22,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-08-27 05:30:22,908 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:30:22,909 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 05:30:22,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-08-27 05:30:23,112 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 05:30:23,113 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting l4_insertErr3REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:30:23,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:30:23,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1869047340, now seen corresponding path program 1 times [2021-08-27 05:30:23,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:30:23,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271207710] [2021-08-27 05:30:23,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:23,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:30:23,125 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:30:23,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [377981641] [2021-08-27 05:30:23,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:23,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:30:23,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:30:23,130 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 05:30:23,130 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 05:30:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:30:23,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 79 conjunts are in the unsatisfiable core [2021-08-27 05:30:23,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:30:23,632 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 05:30:24,259 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 05:30:24,262 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 05:30:24,598 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-08-27 05:30:24,599 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 05:30:24,618 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-08-27 05:30:24,618 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 05:30:24,812 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 05:30:24,814 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 05:30:24,938 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-08-27 05:30:24,938 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 05:30:24,960 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-08-27 05:30:24,961 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 05:30:31,225 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 05:30:31,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:30:31,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271207710] [2021-08-27 05:30:31,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:30:31,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377981641] [2021-08-27 05:30:31,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377981641] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 05:30:31,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-27 05:30:31,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2021-08-27 05:30:31,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442442958] [2021-08-27 05:30:31,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-27 05:30:31,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:30:31,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-27 05:30:31,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=361, Unknown=2, NotChecked=0, Total=420 [2021-08-27 05:30:31,228 INFO L87 Difference]: Start difference. First operand 267 states and 298 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 05:30:52,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:30:52,263 INFO L93 Difference]: Finished difference Result 462 states and 547 transitions. [2021-08-27 05:30:52,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 05:30:52,264 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 05:30:52,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:30:52,266 INFO L225 Difference]: With dead ends: 462 [2021-08-27 05:30:52,266 INFO L226 Difference]: Without dead ends: 462 [2021-08-27 05:30:52,267 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 16561.5ms TimeCoverageRelationStatistics Valid=154, Invalid=1030, Unknown=6, NotChecked=0, Total=1190 [2021-08-27 05:30:52,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-08-27 05:30:52,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 261. [2021-08-27 05:30:52,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 144 states have (on average 1.6736111111111112) internal successors, (241), 221 states have internal predecessors, (241), 26 states have call successors, (26), 15 states have call predecessors, (26), 14 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-08-27 05:30:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 292 transitions. [2021-08-27 05:30:52,274 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 292 transitions. Word has length 125 [2021-08-27 05:30:52,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:30:52,274 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 292 transitions. [2021-08-27 05:30:52,274 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 05:30:52,274 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 292 transitions. [2021-08-27 05:30:52,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-08-27 05:30:52,275 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:30:52,275 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 05:30:52,298 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 05:30:52,490 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 05:30:52,491 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting l3_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:30:52,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:30:52,491 INFO L82 PathProgramCache]: Analyzing trace with hash 2123407571, now seen corresponding path program 1 times [2021-08-27 05:30:52,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:30:52,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912290585] [2021-08-27 05:30:52,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:52,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:30:52,513 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:30:52,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738668718] [2021-08-27 05:30:52,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:52,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:30:52,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:30:52,514 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 05:30:52,518 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 05:30:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:30:52,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 52 conjunts are in the unsatisfiable core [2021-08-27 05:30:52,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:30:53,214 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 05:30:53,337 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-08-27 05:30:53,337 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 05:30:53,406 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 05:30:53,501 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 05:30:53,667 INFO L354 Elim1Store]: treesize reduction 82, result has 16.3 percent of original size [2021-08-27 05:30:53,667 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 05:30:53,713 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 05:30:53,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:30:53,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912290585] [2021-08-27 05:30:53,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:30:53,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738668718] [2021-08-27 05:30:53,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738668718] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 05:30:53,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-27 05:30:53,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-08-27 05:30:53,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948517119] [2021-08-27 05:30:53,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-27 05:30:53,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 05:30:53,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-27 05:30:53,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2021-08-27 05:30:53,716 INFO L87 Difference]: Start difference. First operand 261 states and 292 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 05:30:55,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:30:55,092 INFO L93 Difference]: Finished difference Result 459 states and 544 transitions. [2021-08-27 05:30:55,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 05:30:55,093 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 05:30:55,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:30:55,094 INFO L225 Difference]: With dead ends: 459 [2021-08-27 05:30:55,094 INFO L226 Difference]: Without dead ends: 459 [2021-08-27 05:30:55,095 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 111 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 370.9ms TimeCoverageRelationStatistics Valid=160, Invalid=832, Unknown=0, NotChecked=0, Total=992 [2021-08-27 05:30:55,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-08-27 05:30:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 258. [2021-08-27 05:30:55,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 144 states have (on average 1.6527777777777777) internal successors, (238), 218 states have internal predecessors, (238), 26 states have call successors, (26), 15 states have call predecessors, (26), 14 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-08-27 05:30:55,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 289 transitions. [2021-08-27 05:30:55,102 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 289 transitions. Word has length 133 [2021-08-27 05:30:55,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:30:55,102 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 289 transitions. [2021-08-27 05:30:55,103 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 05:30:55,103 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 289 transitions. [2021-08-27 05:30:55,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-08-27 05:30:55,104 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:30:55,104 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 05:30:55,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-27 05:30:55,316 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 05:30:55,317 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting l3_insertErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:30:55,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:30:55,317 INFO L82 PathProgramCache]: Analyzing trace with hash 2123407572, now seen corresponding path program 1 times [2021-08-27 05:30:55,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 05:30:55,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064514780] [2021-08-27 05:30:55,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:55,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 05:30:55,346 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-27 05:30:55,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [402958203] [2021-08-27 05:30:55,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:30:55,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:30:55,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:30:55,348 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 05:30:55,349 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 05:30:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:30:55,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 96 conjunts are in the unsatisfiable core [2021-08-27 05:30:55,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:30:56,010 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 05:31:00,773 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 05:31:00,776 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 05:31:01,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 05:31:01,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064514780] [2021-08-27 05:31:01,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-27 05:31:01,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402958203] [2021-08-27 05:31:01,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 05:31:01,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:31:01,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 05:31:01,089 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-08-27 05:31:01,089 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 05:31:01,093 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr1REQUIRES_VIOLATION [2021-08-27 05:31:01,094 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:31:01,094 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:31:01,094 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:31:01,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:31:01,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr0REQUIRES_VIOLATION [2021-08-27 05:31:01,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr2REQUIRES_VIOLATION [2021-08-27 05:31:01,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr3REQUIRES_VIOLATION [2021-08-27 05:31:01,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr4REQUIRES_VIOLATION [2021-08-27 05:31:01,096 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr5REQUIRES_VIOLATION [2021-08-27 05:31:01,096 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr0REQUIRES_VIOLATION [2021-08-27 05:31:01,096 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr1REQUIRES_VIOLATION [2021-08-27 05:31:01,096 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr2REQUIRES_VIOLATION [2021-08-27 05:31:01,096 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr3REQUIRES_VIOLATION [2021-08-27 05:31:01,096 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr4REQUIRES_VIOLATION [2021-08-27 05:31:01,097 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr5REQUIRES_VIOLATION [2021-08-27 05:31:01,097 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:31:01,097 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:31:01,097 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,097 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,097 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,097 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr5REQUIRES_VIOLATION [2021-08-27 05:31:01,097 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr6REQUIRES_VIOLATION [2021-08-27 05:31:01,097 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,098 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,098 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,098 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr0REQUIRES_VIOLATION [2021-08-27 05:31:01,098 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr1REQUIRES_VIOLATION [2021-08-27 05:31:01,098 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr2REQUIRES_VIOLATION [2021-08-27 05:31:01,098 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr3REQUIRES_VIOLATION [2021-08-27 05:31:01,098 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr4REQUIRES_VIOLATION [2021-08-27 05:31:01,098 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr5REQUIRES_VIOLATION [2021-08-27 05:31:01,098 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr0REQUIRES_VIOLATION [2021-08-27 05:31:01,099 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr1REQUIRES_VIOLATION [2021-08-27 05:31:01,099 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:31:01,099 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:31:01,099 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:31:01,099 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:31:01,099 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,099 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,099 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,100 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-08-27 05:31:01,100 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-08-27 05:31:01,100 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-08-27 05:31:01,100 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-08-27 05:31:01,100 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-08-27 05:31:01,100 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-08-27 05:31:01,100 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-08-27 05:31:01,100 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-08-27 05:31:01,100 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-08-27 05:31:01,101 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-08-27 05:31:01,101 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr10REQUIRES_VIOLATION [2021-08-27 05:31:01,101 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr11REQUIRES_VIOLATION [2021-08-27 05:31:01,101 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr12REQUIRES_VIOLATION [2021-08-27 05:31:01,101 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr13REQUIRES_VIOLATION [2021-08-27 05:31:01,101 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr14REQUIRES_VIOLATION [2021-08-27 05:31:01,101 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr15REQUIRES_VIOLATION [2021-08-27 05:31:01,101 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr16ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 05:31:01,101 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:31:01,101 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:31:01,102 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:31:01,102 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:31:01,102 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,102 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,102 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,102 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:31:01,102 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:31:01,102 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:31:01,102 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:31:01,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:31:01,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr0REQUIRES_VIOLATION [2021-08-27 05:31:01,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr1REQUIRES_VIOLATION [2021-08-27 05:31:01,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr2REQUIRES_VIOLATION [2021-08-27 05:31:01,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr3REQUIRES_VIOLATION [2021-08-27 05:31:01,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr4REQUIRES_VIOLATION [2021-08-27 05:31:01,103 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr5REQUIRES_VIOLATION [2021-08-27 05:31:01,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr0REQUIRES_VIOLATION [2021-08-27 05:31:01,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr1REQUIRES_VIOLATION [2021-08-27 05:31:01,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr2REQUIRES_VIOLATION [2021-08-27 05:31:01,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr3REQUIRES_VIOLATION [2021-08-27 05:31:01,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr4REQUIRES_VIOLATION [2021-08-27 05:31:01,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr5REQUIRES_VIOLATION [2021-08-27 05:31:01,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr6REQUIRES_VIOLATION [2021-08-27 05:31:01,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr7REQUIRES_VIOLATION [2021-08-27 05:31:01,124 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 05:31:01,318 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 05:31:01,322 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 05:31:01,327 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:31:01,327 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:31:01,327 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:31:01,327 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:31:01,328 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:31:01,328 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:31:01,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 05:31:01 BoogieIcfgContainer [2021-08-27 05:31:01,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 05:31:01,340 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 05:31:01,340 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 05:31:01,340 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 05:31:01,341 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:30:14" (3/4) ... [2021-08-27 05:31:01,343 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 05:31:01,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 05:31:01,344 INFO L168 Benchmark]: Toolchain (without parser) took 48473.35 ms. Allocated memory was 54.5 MB in the beginning and 224.4 MB in the end (delta: 169.9 MB). Free memory was 31.7 MB in the beginning and 147.2 MB in the end (delta: -115.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. [2021-08-27 05:31:01,345 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 36.7 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 05:31:01,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.64 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.6 MB in the beginning and 43.2 MB in the end (delta: -11.6 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-08-27 05:31:01,345 INFO L168 Benchmark]: Boogie Preprocessor took 68.89 ms. Allocated memory is still 71.3 MB. Free memory was 43.2 MB in the beginning and 39.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 05:31:01,345 INFO L168 Benchmark]: RCFGBuilder took 834.24 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 39.2 MB in the beginning and 52.2 MB in the end (delta: -13.0 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-08-27 05:31:01,346 INFO L168 Benchmark]: TraceAbstraction took 47183.29 ms. Allocated memory was 86.0 MB in the beginning and 224.4 MB in the end (delta: 138.4 MB). Free memory was 51.6 MB in the beginning and 147.9 MB in the end (delta: -96.4 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. [2021-08-27 05:31:01,346 INFO L168 Benchmark]: Witness Printer took 3.43 ms. Allocated memory is still 224.4 MB. Free memory was 147.9 MB in the beginning and 147.2 MB in the end (delta: 748.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 05:31:01,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 36.7 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 378.64 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.6 MB in the beginning and 43.2 MB in the end (delta: -11.6 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.89 ms. Allocated memory is still 71.3 MB. Free memory was 43.2 MB in the beginning and 39.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 834.24 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 39.2 MB in the beginning and 52.2 MB in the end (delta: -13.0 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 47183.29 ms. Allocated memory was 86.0 MB in the beginning and 224.4 MB in the end (delta: 138.4 MB). Free memory was 51.6 MB in the beginning and 147.9 MB in the end (delta: -96.4 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.43 ms. Allocated memory is still 224.4 MB. Free memory was 147.9 MB in the beginning and 147.2 MB in the end (delta: 748.4 kB). 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: [L777] static struct L0 *list; [L779] 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: 731]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 731]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 734]: 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: 719]: 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 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: 720]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 722]: 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: 755]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 755]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 756]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 756]: 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 free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 786]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 786]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 787]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 787]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 746]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 746]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 746]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: 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 free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: 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, 294 locations, 89 error locations. Started 1 CEGAR loops. OverallTime: 47122.1ms, OverallIterations: 8, TraceHistogramMax: 6, EmptinessCheckTime: 18.5ms, AutomataDifference: 27017.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1634 SDtfs, 1941 SDslu, 6895 SDs, 0 SdLazy, 11239 SolverSat, 503 SolverUnsat, 50 SolverUnknown, 0 SolverNotchecked, 14287.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 578 GetRequests, 452 SyntacticMatches, 12 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 18255.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=0, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 97.4ms AutomataMinimizationTime, 7 MinimizatonAttempts, 827 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 166.9ms SsaConstructionTime, 385.5ms SatisfiabilityAnalysisTime, 10647.9ms InterpolantComputationTime, 535 NumberOfCodeBlocks, 535 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 528 ConstructedInterpolants, 92 QuantifiedInterpolants, 2596 SizeOfPredicates, 40 NumberOfNonLiveVariables, 3325 ConjunctsInSsa, 224 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 860/960 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 05:31:01,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 05:31:02,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 05:31:02,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 05:31:02,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 05:31:02,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 05:31:02,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 05:31:02,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 05:31:02,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 05:31:02,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 05:31:02,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 05:31:02,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 05:31:02,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 05:31:02,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 05:31:02,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 05:31:02,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 05:31:02,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 05:31:02,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 05:31:02,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 05:31:02,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 05:31:02,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 05:31:02,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 05:31:02,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 05:31:02,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 05:31:02,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 05:31:02,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 05:31:02,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 05:31:02,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 05:31:02,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 05:31:02,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 05:31:02,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 05:31:02,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 05:31:02,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 05:31:02,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 05:31:02,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 05:31:02,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 05:31:02,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 05:31:02,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 05:31:02,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 05:31:02,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 05:31:02,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 05:31:02,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 05:31:02,901 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 05:31:02,925 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 05:31:02,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 05:31:02,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 05:31:02,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 05:31:02,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 05:31:02,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 05:31:02,928 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 05:31:02,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 05:31:02,929 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 05:31:02,929 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 05:31:02,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 05:31:02,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 05:31:02,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 05:31:02,930 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 05:31:02,930 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 05:31:02,930 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 05:31:02,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 05:31:02,937 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 05:31:02,937 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 05:31:02,937 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 05:31:02,937 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 05:31:02,937 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 05:31:02,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 05:31:02,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 05:31:02,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 05:31:02,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 05:31:02,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 05:31:02,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 05:31:02,938 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 05:31:02,938 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 05:31:02,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 05:31:02,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 05:31:02,938 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3800c354b942cbeb9da811279120cfec18cb92a7 [2021-08-27 05:31:03,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 05:31:03,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 05:31:03,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 05:31:03,174 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 05:31:03,174 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 05:31:03,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0235-3.i [2021-08-27 05:31:03,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfa0f16a0/0bcecfa5775c4bdc8ab11d2686dea534/FLAGc3390ec5c [2021-08-27 05:31:03,606 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 05:31:03,606 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0235-3.i [2021-08-27 05:31:03,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfa0f16a0/0bcecfa5775c4bdc8ab11d2686dea534/FLAGc3390ec5c [2021-08-27 05:31:03,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfa0f16a0/0bcecfa5775c4bdc8ab11d2686dea534 [2021-08-27 05:31:03,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 05:31:03,976 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 05:31:03,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 05:31:03,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 05:31:03,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 05:31:03,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:31:03" (1/1) ... [2021-08-27 05:31:03,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326e04de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:31:03, skipping insertion in model container [2021-08-27 05:31:03,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:31:03" (1/1) ... [2021-08-27 05:31:03,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 05:31:04,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 05:31:04,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 05:31:04,288 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 05:31:04,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 05:31:04,350 INFO L208 MainTranslator]: Completed translation [2021-08-27 05:31:04,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:31:04 WrapperNode [2021-08-27 05:31:04,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 05:31:04,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 05:31:04,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 05:31:04,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 05:31:04,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:31:04" (1/1) ... [2021-08-27 05:31:04,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:31:04" (1/1) ... [2021-08-27 05:31:04,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:31:04" (1/1) ... [2021-08-27 05:31:04,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:31:04" (1/1) ... [2021-08-27 05:31:04,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:31:04" (1/1) ... [2021-08-27 05:31:04,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:31:04" (1/1) ... [2021-08-27 05:31:04,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:31:04" (1/1) ... [2021-08-27 05:31:04,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 05:31:04,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 05:31:04,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 05:31:04,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 05:31:04,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:31:04" (1/1) ... [2021-08-27 05:31:04,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 05:31:04,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:31:04,437 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 05:31:04,445 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 05:31:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 05:31:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 05:31:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 05:31:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-27 05:31:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 05:31:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 05:31:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 05:31:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 05:31:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 05:31:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure calloc_model [2021-08-27 05:31:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2021-08-27 05:31:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_insert [2021-08-27 05:31:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_insert [2021-08-27 05:31:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_insert [2021-08-27 05:31:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_insert [2021-08-27 05:31:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_insert [2021-08-27 05:31:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_destroy [2021-08-27 05:31:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_destroy [2021-08-27 05:31:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_destroy [2021-08-27 05:31:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_destroy [2021-08-27 05:31:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_destroy [2021-08-27 05:31:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 05:31:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 05:31:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 05:31:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-27 05:31:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-08-27 05:31:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-08-27 05:31:04,472 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-27 05:31:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 05:31:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 05:31:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 05:31:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 05:31:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 05:31:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 05:31:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 05:31:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 05:31:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 05:31:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 05:31:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 05:31:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 05:31:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 05:31:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 05:31:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 05:31:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 05:31:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 05:31:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 05:31:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 05:31:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 05:31:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 05:31:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 05:31:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 05:31:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 05:31:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 05:31:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 05:31:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 05:31:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 05:31:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 05:31:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 05:31:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 05:31:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 05:31:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 05:31:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 05:31:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 05:31:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 05:31:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 05:31:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 05:31:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 05:31:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 05:31:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 05:31:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 05:31:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 05:31:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 05:31:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 05:31:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 05:31:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 05:31:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 05:31:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 05:31:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 05:31:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 05:31:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 05:31:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 05:31:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 05:31:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 05:31:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 05:31:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 05:31:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 05:31:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 05:31:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 05:31:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 05:31:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 05:31:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 05:31:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 05:31:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 05:31:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 05:31:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 05:31:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 05:31:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 05:31:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 05:31:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 05:31:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 05:31:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 05:31:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 05:31:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 05:31:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 05:31:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 05:31:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 05:31:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 05:31:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 05:31:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 05:31:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2021-08-27 05:31:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2021-08-27 05:31:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 05:31:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-08-27 05:31:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-08-27 05:31:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2021-08-27 05:31:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-08-27 05:31:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-08-27 05:31:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2021-08-27 05:31:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-08-27 05:31:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-08-27 05:31:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2021-08-27 05:31:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2021-08-27 05:31:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2021-08-27 05:31:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2021-08-27 05:31:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2021-08-27 05:31:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2021-08-27 05:31:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2021-08-27 05:31:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-08-27 05:31:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2021-08-27 05:31:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2021-08-27 05:31:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2021-08-27 05:31:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-08-27 05:31:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2021-08-27 05:31:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2021-08-27 05:31:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2021-08-27 05:31:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2021-08-27 05:31:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-08-27 05:31:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2021-08-27 05:31:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2021-08-27 05:31:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2021-08-27 05:31:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2021-08-27 05:31:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2021-08-27 05:31:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2021-08-27 05:31:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure index [2021-08-27 05:31:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2021-08-27 05:31:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-08-27 05:31:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2021-08-27 05:31:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2021-08-27 05:31:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-08-27 05:31:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2021-08-27 05:31:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2021-08-27 05:31:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2021-08-27 05:31:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2021-08-27 05:31:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-08-27 05:31:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2021-08-27 05:31:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2021-08-27 05:31:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2021-08-27 05:31:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2021-08-27 05:31:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2021-08-27 05:31:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure calloc_model [2021-08-27 05:31:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 05:31:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 05:31:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 05:31:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2021-08-27 05:31:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure l4_insert [2021-08-27 05:31:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 05:31:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 05:31:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure l3_insert [2021-08-27 05:31:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure l2_insert [2021-08-27 05:31:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure l1_insert [2021-08-27 05:31:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure l0_insert [2021-08-27 05:31:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure l4_destroy [2021-08-27 05:31:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 05:31:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure l3_destroy [2021-08-27 05:31:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure l2_destroy [2021-08-27 05:31:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure l1_destroy [2021-08-27 05:31:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure l0_destroy [2021-08-27 05:31:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 05:31:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 05:31:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-27 05:31:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 05:31:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 05:31:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 05:31:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-08-27 05:31:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-08-27 05:31:05,015 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 05:31:05,374 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 05:31:05,375 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-27 05:31:05,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:31:05 BoogieIcfgContainer [2021-08-27 05:31:05,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 05:31:05,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 05:31:05,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 05:31:05,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 05:31:05,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 05:31:03" (1/3) ... [2021-08-27 05:31:05,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ef7b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 05:31:05, skipping insertion in model container [2021-08-27 05:31:05,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:31:04" (2/3) ... [2021-08-27 05:31:05,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ef7b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 05:31:05, skipping insertion in model container [2021-08-27 05:31:05,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:31:05" (3/3) ... [2021-08-27 05:31:05,381 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0235-3.i [2021-08-27 05:31:05,384 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 05:31:05,384 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 89 error locations. [2021-08-27 05:31:05,409 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 05:31:05,414 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 05:31:05,414 INFO L340 AbstractCegarLoop]: Starting to check reachability of 89 error locations. [2021-08-27 05:31:05,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 271 states, 146 states have (on average 1.7876712328767124) internal successors, (261), 230 states have internal predecessors, (261), 26 states have call successors, (26), 15 states have call predecessors, (26), 15 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-08-27 05:31:05,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 05:31:05,438 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:31:05,438 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:31:05,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:31:05,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:31:05,442 INFO L82 PathProgramCache]: Analyzing trace with hash 409335201, now seen corresponding path program 1 times [2021-08-27 05:31:05,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:31:05,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221245128] [2021-08-27 05:31:05,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:31:05,450 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:31:05,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:31:05,461 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 05:31:05,491 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 05:31:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:31:05,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-27 05:31:05,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:31:05,708 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 05:31:05,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:31:05,747 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 05:31:05,747 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:31:05,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221245128] [2021-08-27 05:31:05,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221245128] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 05:31:05,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:31:05,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 05:31:05,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789057589] [2021-08-27 05:31:05,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-27 05:31:05,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 05:31:05,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-27 05:31:05,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 05:31:05,768 INFO L87 Difference]: Start difference. First operand has 271 states, 146 states have (on average 1.7876712328767124) internal successors, (261), 230 states have internal predecessors, (261), 26 states have call successors, (26), 15 states have call predecessors, (26), 15 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) 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 05:31:05,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:31:05,790 INFO L93 Difference]: Finished difference Result 271 states and 302 transitions. [2021-08-27 05:31:05,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 05:31:05,791 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 05:31:05,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:31:05,797 INFO L225 Difference]: With dead ends: 271 [2021-08-27 05:31:05,798 INFO L226 Difference]: Without dead ends: 268 [2021-08-27 05:31:05,798 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 05:31:05,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-08-27 05:31:05,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2021-08-27 05:31:05,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 140 states have (on average 1.7714285714285714) internal successors, (248), 228 states have internal predecessors, (248), 26 states have call successors, (26), 15 states have call predecessors, (26), 14 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-08-27 05:31:05,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 299 transitions. [2021-08-27 05:31:05,834 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 299 transitions. Word has length 7 [2021-08-27 05:31:05,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:31:05,834 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 299 transitions. [2021-08-27 05:31:05,834 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 05:31:05,834 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 299 transitions. [2021-08-27 05:31:05,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-27 05:31:05,835 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:31:05,835 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:31:05,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 05:31:06,050 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 05:31:06,051 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting calloc_modelErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:31:06,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:31:06,052 INFO L82 PathProgramCache]: Analyzing trace with hash 441002831, now seen corresponding path program 1 times [2021-08-27 05:31:06,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:31:06,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526565998] [2021-08-27 05:31:06,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:31:06,052 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:31:06,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:31:06,057 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 05:31:06,059 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 05:31:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:31:06,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 05:31:06,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:31:06,344 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 05:31:06,352 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 05:31:06,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:31:06,397 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 05:31:06,397 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:31:06,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526565998] [2021-08-27 05:31:06,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526565998] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 05:31:06,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:31:06,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 05:31:06,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551803638] [2021-08-27 05:31:06,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 05:31:06,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 05:31:06,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 05:31:06,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 05:31:06,403 INFO L87 Difference]: Start difference. First operand 268 states and 299 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 05:31:06,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:31:06,634 INFO L93 Difference]: Finished difference Result 267 states and 298 transitions. [2021-08-27 05:31:06,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 05:31:06,635 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 05:31:06,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:31:06,636 INFO L225 Difference]: With dead ends: 267 [2021-08-27 05:31:06,636 INFO L226 Difference]: Without dead ends: 267 [2021-08-27 05:31:06,637 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 05:31:06,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-08-27 05:31:06,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2021-08-27 05:31:06,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 140 states have (on average 1.7642857142857142) internal successors, (247), 227 states have internal predecessors, (247), 26 states have call successors, (26), 15 states have call predecessors, (26), 14 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-08-27 05:31:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 298 transitions. [2021-08-27 05:31:06,660 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 298 transitions. Word has length 12 [2021-08-27 05:31:06,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:31:06,660 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 298 transitions. [2021-08-27 05:31:06,660 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 05:31:06,661 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 298 transitions. [2021-08-27 05:31:06,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-27 05:31:06,662 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:31:06,662 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 05:31:06,675 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 05:31:06,872 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 05:31:06,872 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting calloc_modelErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:31:06,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:31:06,873 INFO L82 PathProgramCache]: Analyzing trace with hash 441002832, now seen corresponding path program 1 times [2021-08-27 05:31:06,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:31:06,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664636522] [2021-08-27 05:31:06,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:31:06,873 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:31:06,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:31:06,874 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 05:31:06,875 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 05:31:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:31:07,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 05:31:07,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:31:07,138 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 05:31:07,183 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 05:31:07,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:31:07,438 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 05:31:07,439 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:31:07,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664636522] [2021-08-27 05:31:07,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664636522] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 05:31:07,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:31:07,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 2] imperfect sequences [] total 6 [2021-08-27 05:31:07,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978989519] [2021-08-27 05:31:07,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 05:31:07,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 05:31:07,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 05:31:07,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-27 05:31:07,448 INFO L87 Difference]: Start difference. First operand 267 states and 298 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 05:31:08,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:31:08,884 INFO L93 Difference]: Finished difference Result 277 states and 308 transitions. [2021-08-27 05:31:08,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 05:31:08,885 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 05:31:08,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:31:08,887 INFO L225 Difference]: With dead ends: 277 [2021-08-27 05:31:08,887 INFO L226 Difference]: Without dead ends: 277 [2021-08-27 05:31:08,887 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 237.4ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-27 05:31:08,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-08-27 05:31:08,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-08-27 05:31:08,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 146 states have (on average 1.7328767123287672) internal successors, (253), 233 states have internal predecessors, (253), 28 states have call successors, (28), 17 states have call predecessors, (28), 16 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-08-27 05:31:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2021-08-27 05:31:08,899 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 12 [2021-08-27 05:31:08,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:31:08,899 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2021-08-27 05:31:08,899 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 05:31:08,899 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2021-08-27 05:31:08,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-08-27 05:31:08,902 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:31:08,902 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 05:31:08,919 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 05:31:09,115 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 05:31:09,115 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:31:09,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:31:09,116 INFO L82 PathProgramCache]: Analyzing trace with hash 2053185453, now seen corresponding path program 1 times [2021-08-27 05:31:09,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:31:09,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558849485] [2021-08-27 05:31:09,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:31:09,117 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:31:09,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:31:09,118 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 05:31:09,121 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 05:31:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:31:09,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 05:31:09,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:31:09,964 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 05:31:09,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:31:11,427 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 05:31:11,428 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:31:11,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558849485] [2021-08-27 05:31:11,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558849485] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-27 05:31:11,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 05:31:11,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2021-08-27 05:31:11,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56191665] [2021-08-27 05:31:11,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 05:31:11,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 05:31:11,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 05:31:11,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-27 05:31:11,430 INFO L87 Difference]: Start difference. First operand 277 states and 308 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 05:31:11,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:31:11,799 INFO L93 Difference]: Finished difference Result 294 states and 325 transitions. [2021-08-27 05:31:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 05:31:11,808 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 05:31:11,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:31:11,810 INFO L225 Difference]: With dead ends: 294 [2021-08-27 05:31:11,810 INFO L226 Difference]: Without dead ends: 278 [2021-08-27 05:31:11,810 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 599.7ms TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-08-27 05:31:11,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-08-27 05:31:11,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2021-08-27 05:31:11,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 147 states have (on average 1.727891156462585) internal successors, (254), 234 states have internal predecessors, (254), 28 states have call successors, (28), 17 states have call predecessors, (28), 16 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-08-27 05:31:11,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 309 transitions. [2021-08-27 05:31:11,826 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 309 transitions. Word has length 123 [2021-08-27 05:31:11,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:31:11,827 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 309 transitions. [2021-08-27 05:31:11,827 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 05:31:11,827 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 309 transitions. [2021-08-27 05:31:11,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-08-27 05:31:11,831 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:31:11,831 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 05:31:11,841 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 05:31:12,036 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 05:31:12,037 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:31:12,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:31:12,037 INFO L82 PathProgramCache]: Analyzing trace with hash -990331517, now seen corresponding path program 1 times [2021-08-27 05:31:12,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:31:12,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412741353] [2021-08-27 05:31:12,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 05:31:12,038 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:31:12,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:31:12,039 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 05:31:12,040 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 05:31:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 05:31:12,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 05:31:12,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:31:12,942 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 05:31:12,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:31:14,493 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 05:31:14,493 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:31:14,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412741353] [2021-08-27 05:31:14,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412741353] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 05:31:14,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 05:31:14,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-08-27 05:31:14,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358469263] [2021-08-27 05:31:14,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 05:31:14,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 05:31:14,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 05:31:14,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-08-27 05:31:14,495 INFO L87 Difference]: Start difference. First operand 278 states and 309 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 05:31:15,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:31:15,136 INFO L93 Difference]: Finished difference Result 295 states and 326 transitions. [2021-08-27 05:31:15,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 05:31:15,137 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 05:31:15,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:31:15,138 INFO L225 Difference]: With dead ends: 295 [2021-08-27 05:31:15,139 INFO L226 Difference]: Without dead ends: 279 [2021-08-27 05:31:15,139 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 757.8ms TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2021-08-27 05:31:15,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-08-27 05:31:15,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2021-08-27 05:31:15,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 148 states have (on average 1.722972972972973) internal successors, (255), 235 states have internal predecessors, (255), 28 states have call successors, (28), 17 states have call predecessors, (28), 16 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-08-27 05:31:15,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 310 transitions. [2021-08-27 05:31:15,147 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 310 transitions. Word has length 129 [2021-08-27 05:31:15,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:31:15,148 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 310 transitions. [2021-08-27 05:31:15,148 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 05:31:15,148 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 310 transitions. [2021-08-27 05:31:15,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-08-27 05:31:15,155 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:31:15,155 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 05:31:15,167 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 05:31:15,369 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 05:31:15,370 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:31:15,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:31:15,370 INFO L82 PathProgramCache]: Analyzing trace with hash 2065245037, now seen corresponding path program 2 times [2021-08-27 05:31:15,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:31:15,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582157201] [2021-08-27 05:31:15,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 05:31:15,371 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:31:15,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:31:15,372 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 05:31:15,373 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 05:31:15,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 05:31:15,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 05:31:15,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 05:31:15,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:31:16,447 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 05:31:16,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:31:18,103 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 05:31:18,103 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:31:18,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582157201] [2021-08-27 05:31:18,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582157201] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 05:31:18,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 05:31:18,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-08-27 05:31:18,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502106408] [2021-08-27 05:31:18,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 05:31:18,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 05:31:18,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 05:31:18,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-08-27 05:31:18,105 INFO L87 Difference]: Start difference. First operand 279 states and 310 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 05:31:18,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 05:31:18,740 INFO L93 Difference]: Finished difference Result 296 states and 327 transitions. [2021-08-27 05:31:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 05:31:18,742 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 05:31:18,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 05:31:18,744 INFO L225 Difference]: With dead ends: 296 [2021-08-27 05:31:18,744 INFO L226 Difference]: Without dead ends: 280 [2021-08-27 05:31:18,744 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 253 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 936.7ms TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2021-08-27 05:31:18,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-08-27 05:31:18,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2021-08-27 05:31:18,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 149 states have (on average 1.7181208053691275) internal successors, (256), 236 states have internal predecessors, (256), 28 states have call successors, (28), 17 states have call predecessors, (28), 16 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-08-27 05:31:18,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 311 transitions. [2021-08-27 05:31:18,750 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 311 transitions. Word has length 135 [2021-08-27 05:31:18,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 05:31:18,750 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 311 transitions. [2021-08-27 05:31:18,750 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 05:31:18,750 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 311 transitions. [2021-08-27 05:31:18,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-08-27 05:31:18,751 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 05:31:18,752 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 05:31:18,767 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 05:31:18,964 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 05:31:18,964 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 85 more)] === [2021-08-27 05:31:18,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 05:31:18,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1362306877, now seen corresponding path program 3 times [2021-08-27 05:31:18,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 05:31:18,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019917153] [2021-08-27 05:31:18,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 05:31:18,965 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 05:31:18,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 05:31:18,966 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 05:31:18,967 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 05:31:19,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-27 05:31:19,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 05:31:19,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 05:31:19,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:31:19,670 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 05:31:19,872 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 05:31:20,027 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-08-27 05:31:20,027 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 05:31:20,071 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 05:31:20,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:31:32,596 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 05:31:32,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019917153] [2021-08-27 05:31:32,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 05:31:32,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1584889933] [2021-08-27 05:31:32,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 05:31:32,596 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 05:31:32,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 05:31:32,613 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 05:31:32,631 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 05:31:33,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-27 05:31:33,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 05:31:33,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 05:31:33,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:31:33,534 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 05:31:35,707 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 05:31:39,923 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-27 05:31:39,924 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 05:31:39,946 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 05:31:39,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:31:48,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 05:31:48,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659736119] [2021-08-27 05:31:48,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 05:31:48,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 05:31:48,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 05:31:48,272 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 05:31:48,289 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 05:31:48,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-27 05:31:48,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 05:31:48,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 05:31:48,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 05:31:49,093 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 05:31:49,244 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 05:31:49,386 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-08-27 05:31:49,387 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 05:31:49,416 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 05:31:49,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 05:32:04,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 05:32:04,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 05:32:04,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 05:32:04,655 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 05:32:04,655 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 05:32:04,658 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr0REQUIRES_VIOLATION [2021-08-27 05:32:04,659 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:32:04,659 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr0REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr1REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr2REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr3REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr4REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr5REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr0REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr1REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr2REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr3REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr4REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr5REQUIRES_VIOLATION [2021-08-27 05:32:04,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr5REQUIRES_VIOLATION [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr6REQUIRES_VIOLATION [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr0REQUIRES_VIOLATION [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr1REQUIRES_VIOLATION [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr2REQUIRES_VIOLATION [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr3REQUIRES_VIOLATION [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr4REQUIRES_VIOLATION [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr5REQUIRES_VIOLATION [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr0REQUIRES_VIOLATION [2021-08-27 05:32:04,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr1REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr10REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr11REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr12REQUIRES_VIOLATION [2021-08-27 05:32:04,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr13REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr14REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr15REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr16ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr0REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr1REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr2REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr3REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr0REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr1REQUIRES_VIOLATION [2021-08-27 05:32:04,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr2REQUIRES_VIOLATION [2021-08-27 05:32:04,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr3REQUIRES_VIOLATION [2021-08-27 05:32:04,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr4REQUIRES_VIOLATION [2021-08-27 05:32:04,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr5REQUIRES_VIOLATION [2021-08-27 05:32:04,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr1REQUIRES_VIOLATION [2021-08-27 05:32:04,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr2REQUIRES_VIOLATION [2021-08-27 05:32:04,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr3REQUIRES_VIOLATION [2021-08-27 05:32:04,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr4REQUIRES_VIOLATION [2021-08-27 05:32:04,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr5REQUIRES_VIOLATION [2021-08-27 05:32:04,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr6REQUIRES_VIOLATION [2021-08-27 05:32:04,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr7REQUIRES_VIOLATION [2021-08-27 05:32:04,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-08-27 05:32:04,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-08-27 05:32:05,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-08-27 05:32:05,265 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 05:32:05,269 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 05:32:05,275 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:32:05,276 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:32:05,277 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:32:05,277 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:32:05,277 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:32:05,277 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 05:32:05,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 05:32:05 BoogieIcfgContainer [2021-08-27 05:32:05,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 05:32:05,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 05:32:05,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 05:32:05,292 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 05:32:05,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:31:05" (3/4) ... [2021-08-27 05:32:05,294 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 05:32:05,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 05:32:05,295 INFO L168 Benchmark]: Toolchain (without parser) took 61318.71 ms. Allocated memory was 52.4 MB in the beginning and 161.5 MB in the end (delta: 109.1 MB). Free memory was 28.2 MB in the beginning and 56.8 MB in the end (delta: -28.6 MB). Peak memory consumption was 80.0 MB. Max. memory is 16.1 GB. [2021-08-27 05:32:05,297 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 38.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 05:32:05,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.24 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.9 MB in the beginning and 36.0 MB in the end (delta: -8.1 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-08-27 05:32:05,297 INFO L168 Benchmark]: Boogie Preprocessor took 66.87 ms. Allocated memory is still 62.9 MB. Free memory was 36.0 MB in the beginning and 31.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 05:32:05,298 INFO L168 Benchmark]: RCFGBuilder took 957.25 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 31.5 MB in the beginning and 43.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2021-08-27 05:32:05,298 INFO L168 Benchmark]: TraceAbstraction took 59913.71 ms. Allocated memory was 75.5 MB in the beginning and 161.5 MB in the end (delta: 86.0 MB). Free memory was 42.7 MB in the beginning and 56.8 MB in the end (delta: -14.1 MB). Peak memory consumption was 71.3 MB. Max. memory is 16.1 GB. [2021-08-27 05:32:05,298 INFO L168 Benchmark]: Witness Printer took 2.83 ms. Allocated memory is still 161.5 MB. Free memory is still 56.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 05:32:05,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 38.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 374.24 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.9 MB in the beginning and 36.0 MB in the end (delta: -8.1 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.87 ms. Allocated memory is still 62.9 MB. Free memory was 36.0 MB in the beginning and 31.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 957.25 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 31.5 MB in the beginning and 43.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 59913.71 ms. Allocated memory was 75.5 MB in the beginning and 161.5 MB in the end (delta: 86.0 MB). Free memory was 42.7 MB in the beginning and 56.8 MB in the end (delta: -14.1 MB). Peak memory consumption was 71.3 MB. Max. memory is 16.1 GB. * Witness Printer took 2.83 ms. Allocated memory is still 161.5 MB. Free memory is still 56.8 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: 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: [L777] static struct L0 *list; [L779] 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: 731]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 731]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 734]: 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: 719]: 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 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: 720]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 722]: 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: 755]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 755]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 756]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 756]: 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 free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 786]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 786]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 787]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 787]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 746]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 746]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 746]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: 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 free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: 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, 295 locations, 89 error locations. Started 1 CEGAR loops. OverallTime: 59860.0ms, OverallIterations: 7, TraceHistogramMax: 18, EmptinessCheckTime: 24.8ms, AutomataDifference: 3393.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1751 SDtfs, 64 SDslu, 8375 SDs, 0 SdLazy, 626 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2291.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 844 GetRequests, 783 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2535.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=280occurred 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: 90.1ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 159.1ms SsaConstructionTime, 487.6ms SatisfiabilityAnalysisTime, 6960.3ms 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 05:32:05,363 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...