/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/bubble_sort-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:27:19,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:27:19,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:27:19,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:27:19,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:27:19,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:27:19,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:27:19,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:27:19,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:27:19,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:27:19,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:27:19,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:27:19,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:27:19,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:27:19,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:27:19,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:27:19,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:27:19,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:27:19,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:27:19,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:27:19,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:27:19,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:27:19,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:27:19,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:27:19,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:27:19,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:27:19,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:27:19,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:27:19,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-10 15:27:19,721 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:27:19,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:27:19,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:27:19,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:27:19,723 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:27:19,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:27:19,723 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:27:19,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:27:19,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:27:19,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:27:19,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:27:19,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:27:19,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:27:19,725 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:27:19,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:27:19,725 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:27:19,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:27:19,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:27:19,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:27:19,726 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:27:19,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:27:19,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:27:19,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:27:19,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:27:19,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:27:19,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:27:19,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:27:19,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:27:19,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:27:19,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:27:20,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:27:20,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:27:20,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:27:20,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:27:20,042 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:27:20,043 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/bubble_sort-2.i [2020-07-10 15:27:20,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fdf7879e/8468eac3d7c349d9a923bfc81adeafe4/FLAG98432aac5 [2020-07-10 15:27:20,704 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:27:20,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i [2020-07-10 15:27:20,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fdf7879e/8468eac3d7c349d9a923bfc81adeafe4/FLAG98432aac5 [2020-07-10 15:27:20,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fdf7879e/8468eac3d7c349d9a923bfc81adeafe4 [2020-07-10 15:27:20,971 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:27:20,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:27:20,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:27:20,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:27:20,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:27:20,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:27:20" (1/1) ... [2020-07-10 15:27:20,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e6c84e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:20, skipping insertion in model container [2020-07-10 15:27:20,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:27:20" (1/1) ... [2020-07-10 15:27:20,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:27:21,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:27:21,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:27:21,707 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:27:21,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:27:21,860 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:27:21,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21 WrapperNode [2020-07-10 15:27:21,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:27:21,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:27:21,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:27:21,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:27:21,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:21,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:21,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:21,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:21,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:21,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:21,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... [2020-07-10 15:27:22,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:27:22,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:27:22,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:27:22,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:27:22,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:27:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:27:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:27:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-07-10 15:27:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2020-07-10 15:27:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-07-10 15:27:22,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-07-10 15:27:22,095 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-07-10 15:27:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2020-07-10 15:27:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2020-07-10 15:27:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2020-07-10 15:27:22,097 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2020-07-10 15:27:22,097 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2020-07-10 15:27:22,097 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2020-07-10 15:27:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2020-07-10 15:27:22,099 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:27:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:27:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-10 15:27:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-07-10 15:27:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-07-10 15:27:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 15:27:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-10 15:27:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 15:27:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:27:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-07-10 15:27:22,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:27:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2020-07-10 15:27:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-10 15:27:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-07-10 15:27:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-10 15:27:22,103 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-07-10 15:27:22,104 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-07-10 15:27:22,104 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2020-07-10 15:27:22,104 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2020-07-10 15:27:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 15:27:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:27:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2020-07-10 15:27:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2020-07-10 15:27:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:27:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2020-07-10 15:27:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:27:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2020-07-10 15:27:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2020-07-10 15:27:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:27:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:27:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-10 15:27:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-10 15:27:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:27:22,834 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint failFINAL: assume true; [2020-07-10 15:27:23,382 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:27:23,382 INFO L295 CfgBuilder]: Removed 23 assume(true) statements. [2020-07-10 15:27:23,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:27:23 BoogieIcfgContainer [2020-07-10 15:27:23,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:27:23,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:27:23,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:27:23,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:27:23,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:27:20" (1/3) ... [2020-07-10 15:27:23,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aac3ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:27:23, skipping insertion in model container [2020-07-10 15:27:23,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:21" (2/3) ... [2020-07-10 15:27:23,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aac3ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:27:23, skipping insertion in model container [2020-07-10 15:27:23,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:27:23" (3/3) ... [2020-07-10 15:27:23,401 INFO L109 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2020-07-10 15:27:23,413 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:27:23,423 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:27:23,439 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:27:23,472 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:27:23,473 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:27:23,473 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:27:23,473 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:27:23,473 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:27:23,473 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:27:23,474 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:27:23,474 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:27:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-07-10 15:27:23,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-10 15:27:23,515 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:27:23,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:27:23,517 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:27:23,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:27:23,523 INFO L82 PathProgramCache]: Analyzing trace with hash 699938347, now seen corresponding path program 1 times [2020-07-10 15:27:23,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:27:23,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243292270] [2020-07-10 15:27:23,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:27:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:23,837 INFO L280 TraceCheckUtils]: 0: Hoare triple {168#(and (= |#t~string0.base| |old(#t~string0.base)|) (= |#t~string1.offset| |old(#t~string1.offset)|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |#valid| |old(#valid)|) (= |~#gl_list~0.offset| |old(~#gl_list~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#gl_list~0.base| |old(~#gl_list~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string1.base| |old(#t~string1.base)|) (= |old(#length)| |#length|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12);call ~#gl_list~0.base, ~#gl_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#gl_list~0.base, ~#gl_list~0.offset, ~#gl_list~0.base, ~#gl_list~0.offset, 4);call write~init~$Pointer$(~#gl_list~0.base, ~#gl_list~0.offset, ~#gl_list~0.base, 4 + ~#gl_list~0.offset, 4); {159#true} is VALID [2020-07-10 15:27:23,838 INFO L280 TraceCheckUtils]: 1: Hoare triple {159#true} assume true; {159#true} is VALID [2020-07-10 15:27:23,838 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {159#true} {159#true} #586#return; {159#true} is VALID [2020-07-10 15:27:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:23,880 INFO L280 TraceCheckUtils]: 0: Hoare triple {169#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} havoc ~tmp~1;havoc ~tmp___0~0; {159#true} is VALID [2020-07-10 15:27:23,881 INFO L280 TraceCheckUtils]: 1: Hoare triple {159#true} assume !true; {160#false} is VALID [2020-07-10 15:27:23,882 INFO L280 TraceCheckUtils]: 2: Hoare triple {160#false} assume true; {160#false} is VALID [2020-07-10 15:27:23,882 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {160#false} {159#true} #532#return; {160#false} is VALID [2020-07-10 15:27:23,885 INFO L263 TraceCheckUtils]: 0: Hoare triple {159#true} call ULTIMATE.init(); {168#(and (= |#t~string0.base| |old(#t~string0.base)|) (= |#t~string1.offset| |old(#t~string1.offset)|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |#valid| |old(#valid)|) (= |~#gl_list~0.offset| |old(~#gl_list~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#gl_list~0.base| |old(~#gl_list~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string1.base| |old(#t~string1.base)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 15:27:23,886 INFO L280 TraceCheckUtils]: 1: Hoare triple {168#(and (= |#t~string0.base| |old(#t~string0.base)|) (= |#t~string1.offset| |old(#t~string1.offset)|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |#valid| |old(#valid)|) (= |~#gl_list~0.offset| |old(~#gl_list~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#gl_list~0.base| |old(~#gl_list~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string1.base| |old(#t~string1.base)|) (= |old(#length)| |#length|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12);call ~#gl_list~0.base, ~#gl_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#gl_list~0.base, ~#gl_list~0.offset, ~#gl_list~0.base, ~#gl_list~0.offset, 4);call write~init~$Pointer$(~#gl_list~0.base, ~#gl_list~0.offset, ~#gl_list~0.base, 4 + ~#gl_list~0.offset, 4); {159#true} is VALID [2020-07-10 15:27:23,886 INFO L280 TraceCheckUtils]: 2: Hoare triple {159#true} assume true; {159#true} is VALID [2020-07-10 15:27:23,886 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {159#true} {159#true} #586#return; {159#true} is VALID [2020-07-10 15:27:23,887 INFO L263 TraceCheckUtils]: 4: Hoare triple {159#true} call #t~ret32 := main(); {159#true} is VALID [2020-07-10 15:27:23,888 INFO L280 TraceCheckUtils]: 5: Hoare triple {159#true} havoc ~__cil_tmp1~0.base, ~__cil_tmp1~0.offset;havoc ~__cil_tmp2~1.base, ~__cil_tmp2~1.offset; {159#true} is VALID [2020-07-10 15:27:23,890 INFO L263 TraceCheckUtils]: 6: Hoare triple {159#true} call gl_read(); {169#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 15:27:23,891 INFO L280 TraceCheckUtils]: 7: Hoare triple {169#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} havoc ~tmp~1;havoc ~tmp___0~0; {159#true} is VALID [2020-07-10 15:27:23,892 INFO L280 TraceCheckUtils]: 8: Hoare triple {159#true} assume !true; {160#false} is VALID [2020-07-10 15:27:23,892 INFO L280 TraceCheckUtils]: 9: Hoare triple {160#false} assume true; {160#false} is VALID [2020-07-10 15:27:23,893 INFO L275 TraceCheckUtils]: 10: Hoare quadruple {160#false} {159#true} #532#return; {160#false} is VALID [2020-07-10 15:27:23,893 INFO L280 TraceCheckUtils]: 11: Hoare triple {160#false} ~__cil_tmp1~0.base, ~__cil_tmp1~0.offset := ~#gl_list~0.base, ~#gl_list~0.offset; {160#false} is VALID [2020-07-10 15:27:23,893 INFO L263 TraceCheckUtils]: 12: Hoare triple {160#false} call inspect(~__cil_tmp1~0.base, ~__cil_tmp1~0.offset); {160#false} is VALID [2020-07-10 15:27:23,895 INFO L280 TraceCheckUtils]: 13: Hoare triple {160#false} ~head.base, ~head.offset := #in~head.base, #in~head.offset;havoc ~node~0.base, ~node~0.offset;havoc ~__cil_tmp3~0;havoc ~__cil_tmp4~0.base, ~__cil_tmp4~0.offset;havoc ~__cil_tmp5~0;havoc ~__cil_tmp6~0;havoc ~__cil_tmp7~0;havoc ~__cil_tmp8~0;havoc ~__cil_tmp9~0;havoc ~__cil_tmp10~0.base, ~__cil_tmp10~0.offset;havoc ~__cil_tmp11~0;havoc ~__cil_tmp12~0;havoc ~__cil_tmp13~0;havoc ~__cil_tmp14~0;havoc ~__cil_tmp15~0.base, ~__cil_tmp15~0.offset;havoc ~__cil_tmp16~0;havoc ~__cil_tmp17~0.base, ~__cil_tmp17~0.offset;havoc ~__cil_tmp18~0;havoc ~__cil_tmp19~0;havoc ~__cil_tmp20~0;havoc ~__cil_tmp21~0;havoc ~__cil_tmp22~0;havoc ~__cil_tmp23~0.base, ~__cil_tmp23~0.offset;havoc ~__cil_tmp24~0;havoc ~__cil_tmp25~0;havoc ~__cil_tmp26~0.base, ~__cil_tmp26~0.offset;havoc ~__cil_tmp27~0;havoc ~__cil_tmp28~0;havoc ~__cil_tmp29~0.base, ~__cil_tmp29~0.offset;havoc ~__cil_tmp30~0;havoc ~__cil_tmp31~0.base, ~__cil_tmp31~0.offset;havoc ~__cil_tmp32~0.base, ~__cil_tmp32~0.offset;havoc ~__cil_tmp33~0.base, ~__cil_tmp33~0.offset;havoc ~__cil_tmp34~0;havoc ~__cil_tmp35~0;havoc ~__cil_tmp36~0.base, ~__cil_tmp36~0.offset;havoc ~__cil_tmp37~0;havoc ~__cil_tmp38~0;havoc ~__cil_tmp39~0;havoc ~__cil_tmp40~0.base, ~__cil_tmp40~0.offset;havoc ~__cil_tmp41~0;havoc ~__cil_tmp42~0;havoc ~__cil_tmp43~0;havoc ~__cil_tmp44~0;havoc ~__cil_tmp45~0.base, ~__cil_tmp45~0.offset;havoc ~__cil_tmp46~0;havoc ~__cil_tmp47~0;havoc ~__cil_tmp48~0;havoc ~__cil_tmp49~0;havoc ~__cil_tmp50~0.base, ~__cil_tmp50~0.offset;havoc ~__cil_tmp51~0;havoc ~__cil_tmp52~0;havoc ~__cil_tmp53~0;havoc ~__cil_tmp54~0;havoc ~__cil_tmp55~0.base, ~__cil_tmp55~0.offset;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0.base, ~__cil_tmp59~0.offset;havoc ~__cil_tmp60~0;havoc ~__cil_tmp61~0;havoc ~__cil_tmp62~0;havoc ~__cil_tmp63~0;havoc ~__cil_tmp64~0.base, ~__cil_tmp64~0.offset;havoc ~__cil_tmp65~0;havoc ~__cil_tmp66~0;havoc ~__cil_tmp67~0;havoc ~__cil_tmp68~0;havoc ~__cil_tmp69~0.base, ~__cil_tmp69~0.offset;havoc ~__cil_tmp70~0;havoc ~__cil_tmp71~0;havoc ~__cil_tmp72~0.base, ~__cil_tmp72~0.offset;havoc ~__cil_tmp73~0;havoc ~__cil_tmp74~0;havoc ~__cil_tmp75~0;havoc ~__cil_tmp76~0;havoc ~__cil_tmp77~0;havoc ~__cil_tmp78~0.base, ~__cil_tmp78~0.offset;havoc ~__cil_tmp79~0.base, ~__cil_tmp79~0.offset;havoc ~__cil_tmp80~0;havoc ~__cil_tmp81~0;havoc ~__cil_tmp82~0;havoc ~__cil_tmp83~0.base, ~__cil_tmp83~0.offset;havoc ~__cil_tmp84~0.base, ~__cil_tmp84~0.offset;havoc ~__cil_tmp85~0;havoc ~__cil_tmp86~0;havoc ~__cil_tmp87~0;havoc ~__cil_tmp88~0;havoc ~__cil_tmp89~0;havoc ~__cil_tmp90~0.base, ~__cil_tmp90~0.offset;havoc ~__cil_tmp91~0;havoc ~__cil_tmp92~0;havoc ~__cil_tmp93~0.base, ~__cil_tmp93~0.offset;havoc ~__cil_tmp94~0;havoc ~__cil_tmp95~0;havoc ~__cil_tmp96~0;havoc ~__cil_tmp97~0;havoc ~__cil_tmp98~0;havoc ~__cil_tmp99~0;havoc ~__cil_tmp100~0.base, ~__cil_tmp100~0.offset;havoc ~__cil_tmp101~0.base, ~__cil_tmp101~0.offset;havoc ~__cil_tmp102~0;havoc ~__cil_tmp103~0;havoc ~__cil_tmp104~0;havoc ~__cil_tmp105~0.base, ~__cil_tmp105~0.offset;havoc ~__cil_tmp106~0;havoc ~__cil_tmp107~0;havoc ~__cil_tmp108~0;havoc ~__cil_tmp109~0.base, ~__cil_tmp109~0.offset;havoc ~__cil_tmp110~0;havoc ~__cil_tmp111~0.base, ~__cil_tmp111~0.offset;havoc ~__cil_tmp112~0;havoc ~__cil_tmp113~0.base, ~__cil_tmp113~0.offset;havoc ~__cil_tmp114~0;havoc ~__cil_tmp115~0;havoc ~__cil_tmp116~0.base, ~__cil_tmp116~0.offset;havoc ~__cil_tmp117~0;havoc ~__cil_tmp118~0.base, ~__cil_tmp118~0.offset;havoc ~__cil_tmp119~0.base, ~__cil_tmp119~0.offset;havoc ~__cil_tmp120~0.base, ~__cil_tmp120~0.offset;havoc ~__cil_tmp121~0;havoc ~__cil_tmp122~0; {160#false} is VALID [2020-07-10 15:27:23,896 INFO L280 TraceCheckUtils]: 14: Hoare triple {160#false} assume !false; {160#false} is VALID [2020-07-10 15:27:23,896 INFO L280 TraceCheckUtils]: 15: Hoare triple {160#false} assume ~head.base == 0 && ~head.offset == 0; {160#false} is VALID [2020-07-10 15:27:23,897 INFO L263 TraceCheckUtils]: 16: Hoare triple {160#false} call fail(); {160#false} is VALID [2020-07-10 15:27:23,897 INFO L280 TraceCheckUtils]: 17: Hoare triple {160#false} assume !false; {160#false} is VALID [2020-07-10 15:27:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:27:23,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243292270] [2020-07-10 15:27:23,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:27:23,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 15:27:23,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395733522] [2020-07-10 15:27:23,918 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-10 15:27:23,924 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:27:23,929 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 15:27:23,964 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:23,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 15:27:23,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:27:23,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 15:27:23,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 15:27:23,978 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 4 states. [2020-07-10 15:27:26,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:26,445 INFO L93 Difference]: Finished difference Result 331 states and 501 transitions. [2020-07-10 15:27:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 15:27:26,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-10 15:27:26,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:27:26,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 15:27:26,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 501 transitions. [2020-07-10 15:27:26,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 15:27:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 501 transitions. [2020-07-10 15:27:26,544 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 501 transitions. [2020-07-10 15:27:27,417 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 501 edges. 501 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:27,445 INFO L225 Difference]: With dead ends: 331 [2020-07-10 15:27:27,446 INFO L226 Difference]: Without dead ends: 164 [2020-07-10 15:27:27,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:27:27,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-07-10 15:27:27,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 143. [2020-07-10 15:27:27,899 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:27:27,900 INFO L82 GeneralOperation]: Start isEquivalent. First operand 164 states. Second operand 143 states. [2020-07-10 15:27:27,901 INFO L74 IsIncluded]: Start isIncluded. First operand 164 states. Second operand 143 states. [2020-07-10 15:27:27,901 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 143 states. [2020-07-10 15:27:27,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:27,915 INFO L93 Difference]: Finished difference Result 164 states and 196 transitions. [2020-07-10 15:27:27,915 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 196 transitions. [2020-07-10 15:27:27,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:27,920 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:27,920 INFO L74 IsIncluded]: Start isIncluded. First operand 143 states. Second operand 164 states. [2020-07-10 15:27:27,920 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 164 states. [2020-07-10 15:27:27,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:27,931 INFO L93 Difference]: Finished difference Result 164 states and 196 transitions. [2020-07-10 15:27:27,932 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 196 transitions. [2020-07-10 15:27:27,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:27,935 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:27,935 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:27:27,936 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:27:27,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-07-10 15:27:27,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2020-07-10 15:27:27,946 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 18 [2020-07-10 15:27:27,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:27:27,946 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2020-07-10 15:27:27,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 15:27:27,947 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2020-07-10 15:27:27,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-10 15:27:27,948 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:27:27,949 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-10 15:27:27,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:27:27,950 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:27:27,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:27:27,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1874770036, now seen corresponding path program 1 times [2020-07-10 15:27:27,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:27:27,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461439122] [2020-07-10 15:27:27,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:27:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:28,297 INFO L280 TraceCheckUtils]: 0: Hoare triple {1252#(and (= |#t~string0.base| |old(#t~string0.base)|) (= |#t~string1.offset| |old(#t~string1.offset)|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |#valid| |old(#valid)|) (= |~#gl_list~0.offset| |old(~#gl_list~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#gl_list~0.base| |old(~#gl_list~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string1.base| |old(#t~string1.base)|) (= |old(#length)| |#length|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12);call ~#gl_list~0.base, ~#gl_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#gl_list~0.base, ~#gl_list~0.offset, ~#gl_list~0.base, ~#gl_list~0.offset, 4);call write~init~$Pointer$(~#gl_list~0.base, ~#gl_list~0.offset, ~#gl_list~0.base, 4 + ~#gl_list~0.offset, 4); {1225#(not (= 0 |~#gl_list~0.base|))} is VALID [2020-07-10 15:27:28,298 INFO L280 TraceCheckUtils]: 1: Hoare triple {1225#(not (= 0 |~#gl_list~0.base|))} assume true; {1225#(not (= 0 |~#gl_list~0.base|))} is VALID [2020-07-10 15:27:28,299 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1225#(not (= 0 |~#gl_list~0.base|))} {1220#true} #586#return; {1225#(not (= 0 |~#gl_list~0.base|))} is VALID [2020-07-10 15:27:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:28,546 INFO L280 TraceCheckUtils]: 0: Hoare triple {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~new.base, ~new.offset := #in~new.base, #in~new.offset;~prev.base, ~prev.offset := #in~prev.base, #in~prev.offset;~next.base, ~next.offset := #in~next.base, #in~next.offset;havoc ~__cil_tmp4~1;havoc ~__cil_tmp5~1;havoc ~__cil_tmp6~1;havoc ~__cil_tmp7~1;~__cil_tmp4~1 := ~next.base + ~next.offset;~__cil_tmp5~1 := 4 + ~__cil_tmp4~1;call write~$Pointer$(~new.base, ~new.offset, 0, (if ~__cil_tmp5~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp5~1 % 4294967296 % 4294967296 else ~__cil_tmp5~1 % 4294967296 % 4294967296 - 4294967296), 4);call write~$Pointer$(~next.base, ~next.offset, ~new.base, ~new.offset, 4);~__cil_tmp6~1 := ~new.base + ~new.offset;~__cil_tmp7~1 := 4 + ~__cil_tmp6~1;call write~$Pointer$(~prev.base, ~prev.offset, 0, (if ~__cil_tmp7~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp7~1 % 4294967296 % 4294967296 else ~__cil_tmp7~1 % 4294967296 % 4294967296 - 4294967296), 4);call write~$Pointer$(~new.base, ~new.offset, ~prev.base, ~prev.offset, 4); {1220#true} is VALID [2020-07-10 15:27:28,547 INFO L280 TraceCheckUtils]: 1: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,547 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1220#true} {1220#true} #584#return; {1220#true} is VALID [2020-07-10 15:27:28,547 INFO L280 TraceCheckUtils]: 0: Hoare triple {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~new.base, ~new.offset := #in~new.base, #in~new.offset;~head.base, ~head.offset := #in~head.base, #in~head.offset;havoc ~__cil_tmp3~2.base, ~__cil_tmp3~2.offset;call #t~mem18.base, #t~mem18.offset := read~$Pointer$(~head.base, ~head.offset, 4);~__cil_tmp3~2.base, ~__cil_tmp3~2.offset := #t~mem18.base, #t~mem18.offset;havoc #t~mem18.base, #t~mem18.offset; {1220#true} is VALID [2020-07-10 15:27:28,550 INFO L263 TraceCheckUtils]: 1: Hoare triple {1220#true} call __list_add(~new.base, ~new.offset, ~head.base, ~head.offset, ~__cil_tmp3~2.base, ~__cil_tmp3~2.offset); {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 15:27:28,550 INFO L280 TraceCheckUtils]: 2: Hoare triple {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~new.base, ~new.offset := #in~new.base, #in~new.offset;~prev.base, ~prev.offset := #in~prev.base, #in~prev.offset;~next.base, ~next.offset := #in~next.base, #in~next.offset;havoc ~__cil_tmp4~1;havoc ~__cil_tmp5~1;havoc ~__cil_tmp6~1;havoc ~__cil_tmp7~1;~__cil_tmp4~1 := ~next.base + ~next.offset;~__cil_tmp5~1 := 4 + ~__cil_tmp4~1;call write~$Pointer$(~new.base, ~new.offset, 0, (if ~__cil_tmp5~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp5~1 % 4294967296 % 4294967296 else ~__cil_tmp5~1 % 4294967296 % 4294967296 - 4294967296), 4);call write~$Pointer$(~next.base, ~next.offset, ~new.base, ~new.offset, 4);~__cil_tmp6~1 := ~new.base + ~new.offset;~__cil_tmp7~1 := 4 + ~__cil_tmp6~1;call write~$Pointer$(~prev.base, ~prev.offset, 0, (if ~__cil_tmp7~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp7~1 % 4294967296 % 4294967296 else ~__cil_tmp7~1 % 4294967296 % 4294967296 - 4294967296), 4);call write~$Pointer$(~new.base, ~new.offset, ~prev.base, ~prev.offset, 4); {1220#true} is VALID [2020-07-10 15:27:28,551 INFO L280 TraceCheckUtils]: 3: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,551 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1220#true} {1220#true} #584#return; {1220#true} is VALID [2020-07-10 15:27:28,551 INFO L280 TraceCheckUtils]: 5: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,552 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {1220#true} {1220#true} #590#return; {1220#true} is VALID [2020-07-10 15:27:28,552 INFO L280 TraceCheckUtils]: 0: Hoare triple {1253#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~value := #in~value;havoc ~node~1.base, ~node~1.offset;havoc ~tmp~0.base, ~tmp~0.offset;havoc ~__cil_tmp4~4;havoc ~__cil_tmp5~3;havoc ~__cil_tmp6~3;havoc ~__cil_tmp7~2.base, ~__cil_tmp7~2.offset;havoc ~__cil_tmp8~1;havoc ~__cil_tmp9~1;havoc ~__cil_tmp10~1;havoc ~__cil_tmp11~1;havoc ~__cil_tmp12~1;havoc ~__cil_tmp13~1;havoc ~__cil_tmp14~1;havoc ~__cil_tmp15~1;~__cil_tmp4~4 := 20;call #t~malloc21.base, #t~malloc21.offset := #Ultimate.allocOnHeap(~__cil_tmp4~4);~tmp~0.base, ~tmp~0.offset := #t~malloc21.base, #t~malloc21.offset;~node~1.base, ~node~1.offset := ~tmp~0.base, ~tmp~0.offset; {1220#true} is VALID [2020-07-10 15:27:28,552 INFO L280 TraceCheckUtils]: 1: Hoare triple {1220#true} assume !(~node~1.base == 0 && ~node~1.offset == 0); {1220#true} is VALID [2020-07-10 15:27:28,553 INFO L280 TraceCheckUtils]: 2: Hoare triple {1220#true} call write~int(~value, ~node~1.base, ~node~1.offset, 4);~__cil_tmp5~3 := ~node~1.base + ~node~1.offset;~__cil_tmp6~3 := 4 + ~__cil_tmp5~3;~__cil_tmp7~2.base, ~__cil_tmp7~2.offset := 0, (if ~__cil_tmp6~3 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp6~3 % 4294967296 % 4294967296 else ~__cil_tmp6~3 % 4294967296 % 4294967296 - 4294967296); {1220#true} is VALID [2020-07-10 15:27:28,555 INFO L263 TraceCheckUtils]: 3: Hoare triple {1220#true} call list_add(~__cil_tmp7~2.base, ~__cil_tmp7~2.offset, ~#gl_list~0.base, ~#gl_list~0.offset); {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 15:27:28,555 INFO L280 TraceCheckUtils]: 4: Hoare triple {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~new.base, ~new.offset := #in~new.base, #in~new.offset;~head.base, ~head.offset := #in~head.base, #in~head.offset;havoc ~__cil_tmp3~2.base, ~__cil_tmp3~2.offset;call #t~mem18.base, #t~mem18.offset := read~$Pointer$(~head.base, ~head.offset, 4);~__cil_tmp3~2.base, ~__cil_tmp3~2.offset := #t~mem18.base, #t~mem18.offset;havoc #t~mem18.base, #t~mem18.offset; {1220#true} is VALID [2020-07-10 15:27:28,557 INFO L263 TraceCheckUtils]: 5: Hoare triple {1220#true} call __list_add(~new.base, ~new.offset, ~head.base, ~head.offset, ~__cil_tmp3~2.base, ~__cil_tmp3~2.offset); {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 15:27:28,557 INFO L280 TraceCheckUtils]: 6: Hoare triple {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~new.base, ~new.offset := #in~new.base, #in~new.offset;~prev.base, ~prev.offset := #in~prev.base, #in~prev.offset;~next.base, ~next.offset := #in~next.base, #in~next.offset;havoc ~__cil_tmp4~1;havoc ~__cil_tmp5~1;havoc ~__cil_tmp6~1;havoc ~__cil_tmp7~1;~__cil_tmp4~1 := ~next.base + ~next.offset;~__cil_tmp5~1 := 4 + ~__cil_tmp4~1;call write~$Pointer$(~new.base, ~new.offset, 0, (if ~__cil_tmp5~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp5~1 % 4294967296 % 4294967296 else ~__cil_tmp5~1 % 4294967296 % 4294967296 - 4294967296), 4);call write~$Pointer$(~next.base, ~next.offset, ~new.base, ~new.offset, 4);~__cil_tmp6~1 := ~new.base + ~new.offset;~__cil_tmp7~1 := 4 + ~__cil_tmp6~1;call write~$Pointer$(~prev.base, ~prev.offset, 0, (if ~__cil_tmp7~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp7~1 % 4294967296 % 4294967296 else ~__cil_tmp7~1 % 4294967296 % 4294967296 - 4294967296), 4);call write~$Pointer$(~new.base, ~new.offset, ~prev.base, ~prev.offset, 4); {1220#true} is VALID [2020-07-10 15:27:28,558 INFO L280 TraceCheckUtils]: 7: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,558 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {1220#true} {1220#true} #584#return; {1220#true} is VALID [2020-07-10 15:27:28,558 INFO L280 TraceCheckUtils]: 9: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,559 INFO L275 TraceCheckUtils]: 10: Hoare quadruple {1220#true} {1220#true} #590#return; {1220#true} is VALID [2020-07-10 15:27:28,559 INFO L280 TraceCheckUtils]: 11: Hoare triple {1220#true} assume !false; {1220#true} is VALID [2020-07-10 15:27:28,559 INFO L280 TraceCheckUtils]: 12: Hoare triple {1220#true} ~__cil_tmp8~1 := ~node~1.base + ~node~1.offset;~__cil_tmp9~1 := 12 + ~__cil_tmp8~1;~__cil_tmp10~1 := ~node~1.base + ~node~1.offset;~__cil_tmp11~1 := 12 + ~__cil_tmp10~1;call write~$Pointer$(0, (if ~__cil_tmp11~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp11~1 % 4294967296 % 4294967296 else ~__cil_tmp11~1 % 4294967296 % 4294967296 - 4294967296), 0, (if ~__cil_tmp9~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp9~1 % 4294967296 % 4294967296 else ~__cil_tmp9~1 % 4294967296 % 4294967296 - 4294967296), 4);~__cil_tmp12~1 := ~node~1.base + ~node~1.offset;~__cil_tmp13~1 := 12 + ~__cil_tmp12~1;~__cil_tmp14~1 := ~node~1.base + ~node~1.offset;~__cil_tmp15~1 := 12 + ~__cil_tmp14~1;call write~$Pointer$(0, (if ~__cil_tmp15~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp15~1 % 4294967296 % 4294967296 else ~__cil_tmp15~1 % 4294967296 % 4294967296 - 4294967296), 0, (if ~__cil_tmp13~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp13~1 % 4294967296 % 4294967296 else ~__cil_tmp13~1 % 4294967296 % 4294967296 - 4294967296), 4); {1220#true} is VALID [2020-07-10 15:27:28,560 INFO L280 TraceCheckUtils]: 13: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,560 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {1220#true} {1220#true} #548#return; {1220#true} is VALID [2020-07-10 15:27:28,561 INFO L280 TraceCheckUtils]: 0: Hoare triple {1253#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} havoc ~tmp~1;havoc ~tmp___0~0; {1220#true} is VALID [2020-07-10 15:27:28,561 INFO L280 TraceCheckUtils]: 1: Hoare triple {1220#true} assume !false; {1220#true} is VALID [2020-07-10 15:27:28,562 INFO L280 TraceCheckUtils]: 2: Hoare triple {1220#true} assume -2147483648 <= #t~nondet22 && #t~nondet22 <= 2147483647;~tmp~1 := #t~nondet22;havoc #t~nondet22; {1220#true} is VALID [2020-07-10 15:27:28,563 INFO L263 TraceCheckUtils]: 3: Hoare triple {1220#true} call gl_insert(~tmp~1); {1253#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 15:27:28,564 INFO L280 TraceCheckUtils]: 4: Hoare triple {1253#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~value := #in~value;havoc ~node~1.base, ~node~1.offset;havoc ~tmp~0.base, ~tmp~0.offset;havoc ~__cil_tmp4~4;havoc ~__cil_tmp5~3;havoc ~__cil_tmp6~3;havoc ~__cil_tmp7~2.base, ~__cil_tmp7~2.offset;havoc ~__cil_tmp8~1;havoc ~__cil_tmp9~1;havoc ~__cil_tmp10~1;havoc ~__cil_tmp11~1;havoc ~__cil_tmp12~1;havoc ~__cil_tmp13~1;havoc ~__cil_tmp14~1;havoc ~__cil_tmp15~1;~__cil_tmp4~4 := 20;call #t~malloc21.base, #t~malloc21.offset := #Ultimate.allocOnHeap(~__cil_tmp4~4);~tmp~0.base, ~tmp~0.offset := #t~malloc21.base, #t~malloc21.offset;~node~1.base, ~node~1.offset := ~tmp~0.base, ~tmp~0.offset; {1220#true} is VALID [2020-07-10 15:27:28,564 INFO L280 TraceCheckUtils]: 5: Hoare triple {1220#true} assume !(~node~1.base == 0 && ~node~1.offset == 0); {1220#true} is VALID [2020-07-10 15:27:28,564 INFO L280 TraceCheckUtils]: 6: Hoare triple {1220#true} call write~int(~value, ~node~1.base, ~node~1.offset, 4);~__cil_tmp5~3 := ~node~1.base + ~node~1.offset;~__cil_tmp6~3 := 4 + ~__cil_tmp5~3;~__cil_tmp7~2.base, ~__cil_tmp7~2.offset := 0, (if ~__cil_tmp6~3 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp6~3 % 4294967296 % 4294967296 else ~__cil_tmp6~3 % 4294967296 % 4294967296 - 4294967296); {1220#true} is VALID [2020-07-10 15:27:28,566 INFO L263 TraceCheckUtils]: 7: Hoare triple {1220#true} call list_add(~__cil_tmp7~2.base, ~__cil_tmp7~2.offset, ~#gl_list~0.base, ~#gl_list~0.offset); {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 15:27:28,567 INFO L280 TraceCheckUtils]: 8: Hoare triple {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~new.base, ~new.offset := #in~new.base, #in~new.offset;~head.base, ~head.offset := #in~head.base, #in~head.offset;havoc ~__cil_tmp3~2.base, ~__cil_tmp3~2.offset;call #t~mem18.base, #t~mem18.offset := read~$Pointer$(~head.base, ~head.offset, 4);~__cil_tmp3~2.base, ~__cil_tmp3~2.offset := #t~mem18.base, #t~mem18.offset;havoc #t~mem18.base, #t~mem18.offset; {1220#true} is VALID [2020-07-10 15:27:28,569 INFO L263 TraceCheckUtils]: 9: Hoare triple {1220#true} call __list_add(~new.base, ~new.offset, ~head.base, ~head.offset, ~__cil_tmp3~2.base, ~__cil_tmp3~2.offset); {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 15:27:28,569 INFO L280 TraceCheckUtils]: 10: Hoare triple {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~new.base, ~new.offset := #in~new.base, #in~new.offset;~prev.base, ~prev.offset := #in~prev.base, #in~prev.offset;~next.base, ~next.offset := #in~next.base, #in~next.offset;havoc ~__cil_tmp4~1;havoc ~__cil_tmp5~1;havoc ~__cil_tmp6~1;havoc ~__cil_tmp7~1;~__cil_tmp4~1 := ~next.base + ~next.offset;~__cil_tmp5~1 := 4 + ~__cil_tmp4~1;call write~$Pointer$(~new.base, ~new.offset, 0, (if ~__cil_tmp5~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp5~1 % 4294967296 % 4294967296 else ~__cil_tmp5~1 % 4294967296 % 4294967296 - 4294967296), 4);call write~$Pointer$(~next.base, ~next.offset, ~new.base, ~new.offset, 4);~__cil_tmp6~1 := ~new.base + ~new.offset;~__cil_tmp7~1 := 4 + ~__cil_tmp6~1;call write~$Pointer$(~prev.base, ~prev.offset, 0, (if ~__cil_tmp7~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp7~1 % 4294967296 % 4294967296 else ~__cil_tmp7~1 % 4294967296 % 4294967296 - 4294967296), 4);call write~$Pointer$(~new.base, ~new.offset, ~prev.base, ~prev.offset, 4); {1220#true} is VALID [2020-07-10 15:27:28,570 INFO L280 TraceCheckUtils]: 11: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,570 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {1220#true} {1220#true} #584#return; {1220#true} is VALID [2020-07-10 15:27:28,570 INFO L280 TraceCheckUtils]: 13: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,570 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {1220#true} {1220#true} #590#return; {1220#true} is VALID [2020-07-10 15:27:28,571 INFO L280 TraceCheckUtils]: 15: Hoare triple {1220#true} assume !false; {1220#true} is VALID [2020-07-10 15:27:28,571 INFO L280 TraceCheckUtils]: 16: Hoare triple {1220#true} ~__cil_tmp8~1 := ~node~1.base + ~node~1.offset;~__cil_tmp9~1 := 12 + ~__cil_tmp8~1;~__cil_tmp10~1 := ~node~1.base + ~node~1.offset;~__cil_tmp11~1 := 12 + ~__cil_tmp10~1;call write~$Pointer$(0, (if ~__cil_tmp11~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp11~1 % 4294967296 % 4294967296 else ~__cil_tmp11~1 % 4294967296 % 4294967296 - 4294967296), 0, (if ~__cil_tmp9~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp9~1 % 4294967296 % 4294967296 else ~__cil_tmp9~1 % 4294967296 % 4294967296 - 4294967296), 4);~__cil_tmp12~1 := ~node~1.base + ~node~1.offset;~__cil_tmp13~1 := 12 + ~__cil_tmp12~1;~__cil_tmp14~1 := ~node~1.base + ~node~1.offset;~__cil_tmp15~1 := 12 + ~__cil_tmp14~1;call write~$Pointer$(0, (if ~__cil_tmp15~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp15~1 % 4294967296 % 4294967296 else ~__cil_tmp15~1 % 4294967296 % 4294967296 - 4294967296), 0, (if ~__cil_tmp13~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp13~1 % 4294967296 % 4294967296 else ~__cil_tmp13~1 % 4294967296 % 4294967296 - 4294967296), 4); {1220#true} is VALID [2020-07-10 15:27:28,571 INFO L280 TraceCheckUtils]: 17: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,572 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {1220#true} {1220#true} #548#return; {1220#true} is VALID [2020-07-10 15:27:28,572 INFO L280 TraceCheckUtils]: 19: Hoare triple {1220#true} assume -2147483648 <= #t~nondet23 && #t~nondet23 <= 2147483647;~tmp___0~0 := #t~nondet23;havoc #t~nondet23; {1220#true} is VALID [2020-07-10 15:27:28,572 INFO L280 TraceCheckUtils]: 20: Hoare triple {1220#true} assume !(0 != ~tmp___0~0); {1220#true} is VALID [2020-07-10 15:27:28,573 INFO L280 TraceCheckUtils]: 21: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,574 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {1220#true} {1225#(not (= 0 |~#gl_list~0.base|))} #532#return; {1225#(not (= 0 |~#gl_list~0.base|))} is VALID [2020-07-10 15:27:28,576 INFO L263 TraceCheckUtils]: 0: Hoare triple {1220#true} call ULTIMATE.init(); {1252#(and (= |#t~string0.base| |old(#t~string0.base)|) (= |#t~string1.offset| |old(#t~string1.offset)|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |#valid| |old(#valid)|) (= |~#gl_list~0.offset| |old(~#gl_list~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#gl_list~0.base| |old(~#gl_list~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string1.base| |old(#t~string1.base)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 15:27:28,577 INFO L280 TraceCheckUtils]: 1: Hoare triple {1252#(and (= |#t~string0.base| |old(#t~string0.base)|) (= |#t~string1.offset| |old(#t~string1.offset)|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |#valid| |old(#valid)|) (= |~#gl_list~0.offset| |old(~#gl_list~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#gl_list~0.base| |old(~#gl_list~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string1.base| |old(#t~string1.base)|) (= |old(#length)| |#length|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12);call ~#gl_list~0.base, ~#gl_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#gl_list~0.base, ~#gl_list~0.offset, ~#gl_list~0.base, ~#gl_list~0.offset, 4);call write~init~$Pointer$(~#gl_list~0.base, ~#gl_list~0.offset, ~#gl_list~0.base, 4 + ~#gl_list~0.offset, 4); {1225#(not (= 0 |~#gl_list~0.base|))} is VALID [2020-07-10 15:27:28,578 INFO L280 TraceCheckUtils]: 2: Hoare triple {1225#(not (= 0 |~#gl_list~0.base|))} assume true; {1225#(not (= 0 |~#gl_list~0.base|))} is VALID [2020-07-10 15:27:28,579 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1225#(not (= 0 |~#gl_list~0.base|))} {1220#true} #586#return; {1225#(not (= 0 |~#gl_list~0.base|))} is VALID [2020-07-10 15:27:28,580 INFO L263 TraceCheckUtils]: 4: Hoare triple {1225#(not (= 0 |~#gl_list~0.base|))} call #t~ret32 := main(); {1225#(not (= 0 |~#gl_list~0.base|))} is VALID [2020-07-10 15:27:28,580 INFO L280 TraceCheckUtils]: 5: Hoare triple {1225#(not (= 0 |~#gl_list~0.base|))} havoc ~__cil_tmp1~0.base, ~__cil_tmp1~0.offset;havoc ~__cil_tmp2~1.base, ~__cil_tmp2~1.offset; {1225#(not (= 0 |~#gl_list~0.base|))} is VALID [2020-07-10 15:27:28,581 INFO L263 TraceCheckUtils]: 6: Hoare triple {1225#(not (= 0 |~#gl_list~0.base|))} call gl_read(); {1253#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 15:27:28,582 INFO L280 TraceCheckUtils]: 7: Hoare triple {1253#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} havoc ~tmp~1;havoc ~tmp___0~0; {1220#true} is VALID [2020-07-10 15:27:28,582 INFO L280 TraceCheckUtils]: 8: Hoare triple {1220#true} assume !false; {1220#true} is VALID [2020-07-10 15:27:28,583 INFO L280 TraceCheckUtils]: 9: Hoare triple {1220#true} assume -2147483648 <= #t~nondet22 && #t~nondet22 <= 2147483647;~tmp~1 := #t~nondet22;havoc #t~nondet22; {1220#true} is VALID [2020-07-10 15:27:28,584 INFO L263 TraceCheckUtils]: 10: Hoare triple {1220#true} call gl_insert(~tmp~1); {1253#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 15:27:28,585 INFO L280 TraceCheckUtils]: 11: Hoare triple {1253#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~value := #in~value;havoc ~node~1.base, ~node~1.offset;havoc ~tmp~0.base, ~tmp~0.offset;havoc ~__cil_tmp4~4;havoc ~__cil_tmp5~3;havoc ~__cil_tmp6~3;havoc ~__cil_tmp7~2.base, ~__cil_tmp7~2.offset;havoc ~__cil_tmp8~1;havoc ~__cil_tmp9~1;havoc ~__cil_tmp10~1;havoc ~__cil_tmp11~1;havoc ~__cil_tmp12~1;havoc ~__cil_tmp13~1;havoc ~__cil_tmp14~1;havoc ~__cil_tmp15~1;~__cil_tmp4~4 := 20;call #t~malloc21.base, #t~malloc21.offset := #Ultimate.allocOnHeap(~__cil_tmp4~4);~tmp~0.base, ~tmp~0.offset := #t~malloc21.base, #t~malloc21.offset;~node~1.base, ~node~1.offset := ~tmp~0.base, ~tmp~0.offset; {1220#true} is VALID [2020-07-10 15:27:28,585 INFO L280 TraceCheckUtils]: 12: Hoare triple {1220#true} assume !(~node~1.base == 0 && ~node~1.offset == 0); {1220#true} is VALID [2020-07-10 15:27:28,585 INFO L280 TraceCheckUtils]: 13: Hoare triple {1220#true} call write~int(~value, ~node~1.base, ~node~1.offset, 4);~__cil_tmp5~3 := ~node~1.base + ~node~1.offset;~__cil_tmp6~3 := 4 + ~__cil_tmp5~3;~__cil_tmp7~2.base, ~__cil_tmp7~2.offset := 0, (if ~__cil_tmp6~3 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp6~3 % 4294967296 % 4294967296 else ~__cil_tmp6~3 % 4294967296 % 4294967296 - 4294967296); {1220#true} is VALID [2020-07-10 15:27:28,587 INFO L263 TraceCheckUtils]: 14: Hoare triple {1220#true} call list_add(~__cil_tmp7~2.base, ~__cil_tmp7~2.offset, ~#gl_list~0.base, ~#gl_list~0.offset); {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 15:27:28,587 INFO L280 TraceCheckUtils]: 15: Hoare triple {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~new.base, ~new.offset := #in~new.base, #in~new.offset;~head.base, ~head.offset := #in~head.base, #in~head.offset;havoc ~__cil_tmp3~2.base, ~__cil_tmp3~2.offset;call #t~mem18.base, #t~mem18.offset := read~$Pointer$(~head.base, ~head.offset, 4);~__cil_tmp3~2.base, ~__cil_tmp3~2.offset := #t~mem18.base, #t~mem18.offset;havoc #t~mem18.base, #t~mem18.offset; {1220#true} is VALID [2020-07-10 15:27:28,589 INFO L263 TraceCheckUtils]: 16: Hoare triple {1220#true} call __list_add(~new.base, ~new.offset, ~head.base, ~head.offset, ~__cil_tmp3~2.base, ~__cil_tmp3~2.offset); {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-10 15:27:28,590 INFO L280 TraceCheckUtils]: 17: Hoare triple {1276#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~new.base, ~new.offset := #in~new.base, #in~new.offset;~prev.base, ~prev.offset := #in~prev.base, #in~prev.offset;~next.base, ~next.offset := #in~next.base, #in~next.offset;havoc ~__cil_tmp4~1;havoc ~__cil_tmp5~1;havoc ~__cil_tmp6~1;havoc ~__cil_tmp7~1;~__cil_tmp4~1 := ~next.base + ~next.offset;~__cil_tmp5~1 := 4 + ~__cil_tmp4~1;call write~$Pointer$(~new.base, ~new.offset, 0, (if ~__cil_tmp5~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp5~1 % 4294967296 % 4294967296 else ~__cil_tmp5~1 % 4294967296 % 4294967296 - 4294967296), 4);call write~$Pointer$(~next.base, ~next.offset, ~new.base, ~new.offset, 4);~__cil_tmp6~1 := ~new.base + ~new.offset;~__cil_tmp7~1 := 4 + ~__cil_tmp6~1;call write~$Pointer$(~prev.base, ~prev.offset, 0, (if ~__cil_tmp7~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp7~1 % 4294967296 % 4294967296 else ~__cil_tmp7~1 % 4294967296 % 4294967296 - 4294967296), 4);call write~$Pointer$(~new.base, ~new.offset, ~prev.base, ~prev.offset, 4); {1220#true} is VALID [2020-07-10 15:27:28,590 INFO L280 TraceCheckUtils]: 18: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,590 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {1220#true} {1220#true} #584#return; {1220#true} is VALID [2020-07-10 15:27:28,591 INFO L280 TraceCheckUtils]: 20: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,591 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {1220#true} {1220#true} #590#return; {1220#true} is VALID [2020-07-10 15:27:28,591 INFO L280 TraceCheckUtils]: 22: Hoare triple {1220#true} assume !false; {1220#true} is VALID [2020-07-10 15:27:28,592 INFO L280 TraceCheckUtils]: 23: Hoare triple {1220#true} ~__cil_tmp8~1 := ~node~1.base + ~node~1.offset;~__cil_tmp9~1 := 12 + ~__cil_tmp8~1;~__cil_tmp10~1 := ~node~1.base + ~node~1.offset;~__cil_tmp11~1 := 12 + ~__cil_tmp10~1;call write~$Pointer$(0, (if ~__cil_tmp11~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp11~1 % 4294967296 % 4294967296 else ~__cil_tmp11~1 % 4294967296 % 4294967296 - 4294967296), 0, (if ~__cil_tmp9~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp9~1 % 4294967296 % 4294967296 else ~__cil_tmp9~1 % 4294967296 % 4294967296 - 4294967296), 4);~__cil_tmp12~1 := ~node~1.base + ~node~1.offset;~__cil_tmp13~1 := 12 + ~__cil_tmp12~1;~__cil_tmp14~1 := ~node~1.base + ~node~1.offset;~__cil_tmp15~1 := 12 + ~__cil_tmp14~1;call write~$Pointer$(0, (if ~__cil_tmp15~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp15~1 % 4294967296 % 4294967296 else ~__cil_tmp15~1 % 4294967296 % 4294967296 - 4294967296), 0, (if ~__cil_tmp13~1 % 4294967296 % 4294967296 <= 2147483647 then ~__cil_tmp13~1 % 4294967296 % 4294967296 else ~__cil_tmp13~1 % 4294967296 % 4294967296 - 4294967296), 4); {1220#true} is VALID [2020-07-10 15:27:28,592 INFO L280 TraceCheckUtils]: 24: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,592 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {1220#true} {1220#true} #548#return; {1220#true} is VALID [2020-07-10 15:27:28,592 INFO L280 TraceCheckUtils]: 26: Hoare triple {1220#true} assume -2147483648 <= #t~nondet23 && #t~nondet23 <= 2147483647;~tmp___0~0 := #t~nondet23;havoc #t~nondet23; {1220#true} is VALID [2020-07-10 15:27:28,593 INFO L280 TraceCheckUtils]: 27: Hoare triple {1220#true} assume !(0 != ~tmp___0~0); {1220#true} is VALID [2020-07-10 15:27:28,593 INFO L280 TraceCheckUtils]: 28: Hoare triple {1220#true} assume true; {1220#true} is VALID [2020-07-10 15:27:28,594 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {1220#true} {1225#(not (= 0 |~#gl_list~0.base|))} #532#return; {1225#(not (= 0 |~#gl_list~0.base|))} is VALID [2020-07-10 15:27:28,595 INFO L280 TraceCheckUtils]: 30: Hoare triple {1225#(not (= 0 |~#gl_list~0.base|))} ~__cil_tmp1~0.base, ~__cil_tmp1~0.offset := ~#gl_list~0.base, ~#gl_list~0.offset; {1249#(not (= 0 main_~__cil_tmp1~0.base))} is VALID [2020-07-10 15:27:28,596 INFO L263 TraceCheckUtils]: 31: Hoare triple {1249#(not (= 0 main_~__cil_tmp1~0.base))} call inspect(~__cil_tmp1~0.base, ~__cil_tmp1~0.offset); {1250#(not (= |inspect_#in~head.base| 0))} is VALID [2020-07-10 15:27:28,597 INFO L280 TraceCheckUtils]: 32: Hoare triple {1250#(not (= |inspect_#in~head.base| 0))} ~head.base, ~head.offset := #in~head.base, #in~head.offset;havoc ~node~0.base, ~node~0.offset;havoc ~__cil_tmp3~0;havoc ~__cil_tmp4~0.base, ~__cil_tmp4~0.offset;havoc ~__cil_tmp5~0;havoc ~__cil_tmp6~0;havoc ~__cil_tmp7~0;havoc ~__cil_tmp8~0;havoc ~__cil_tmp9~0;havoc ~__cil_tmp10~0.base, ~__cil_tmp10~0.offset;havoc ~__cil_tmp11~0;havoc ~__cil_tmp12~0;havoc ~__cil_tmp13~0;havoc ~__cil_tmp14~0;havoc ~__cil_tmp15~0.base, ~__cil_tmp15~0.offset;havoc ~__cil_tmp16~0;havoc ~__cil_tmp17~0.base, ~__cil_tmp17~0.offset;havoc ~__cil_tmp18~0;havoc ~__cil_tmp19~0;havoc ~__cil_tmp20~0;havoc ~__cil_tmp21~0;havoc ~__cil_tmp22~0;havoc ~__cil_tmp23~0.base, ~__cil_tmp23~0.offset;havoc ~__cil_tmp24~0;havoc ~__cil_tmp25~0;havoc ~__cil_tmp26~0.base, ~__cil_tmp26~0.offset;havoc ~__cil_tmp27~0;havoc ~__cil_tmp28~0;havoc ~__cil_tmp29~0.base, ~__cil_tmp29~0.offset;havoc ~__cil_tmp30~0;havoc ~__cil_tmp31~0.base, ~__cil_tmp31~0.offset;havoc ~__cil_tmp32~0.base, ~__cil_tmp32~0.offset;havoc ~__cil_tmp33~0.base, ~__cil_tmp33~0.offset;havoc ~__cil_tmp34~0;havoc ~__cil_tmp35~0;havoc ~__cil_tmp36~0.base, ~__cil_tmp36~0.offset;havoc ~__cil_tmp37~0;havoc ~__cil_tmp38~0;havoc ~__cil_tmp39~0;havoc ~__cil_tmp40~0.base, ~__cil_tmp40~0.offset;havoc ~__cil_tmp41~0;havoc ~__cil_tmp42~0;havoc ~__cil_tmp43~0;havoc ~__cil_tmp44~0;havoc ~__cil_tmp45~0.base, ~__cil_tmp45~0.offset;havoc ~__cil_tmp46~0;havoc ~__cil_tmp47~0;havoc ~__cil_tmp48~0;havoc ~__cil_tmp49~0;havoc ~__cil_tmp50~0.base, ~__cil_tmp50~0.offset;havoc ~__cil_tmp51~0;havoc ~__cil_tmp52~0;havoc ~__cil_tmp53~0;havoc ~__cil_tmp54~0;havoc ~__cil_tmp55~0.base, ~__cil_tmp55~0.offset;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0.base, ~__cil_tmp59~0.offset;havoc ~__cil_tmp60~0;havoc ~__cil_tmp61~0;havoc ~__cil_tmp62~0;havoc ~__cil_tmp63~0;havoc ~__cil_tmp64~0.base, ~__cil_tmp64~0.offset;havoc ~__cil_tmp65~0;havoc ~__cil_tmp66~0;havoc ~__cil_tmp67~0;havoc ~__cil_tmp68~0;havoc ~__cil_tmp69~0.base, ~__cil_tmp69~0.offset;havoc ~__cil_tmp70~0;havoc ~__cil_tmp71~0;havoc ~__cil_tmp72~0.base, ~__cil_tmp72~0.offset;havoc ~__cil_tmp73~0;havoc ~__cil_tmp74~0;havoc ~__cil_tmp75~0;havoc ~__cil_tmp76~0;havoc ~__cil_tmp77~0;havoc ~__cil_tmp78~0.base, ~__cil_tmp78~0.offset;havoc ~__cil_tmp79~0.base, ~__cil_tmp79~0.offset;havoc ~__cil_tmp80~0;havoc ~__cil_tmp81~0;havoc ~__cil_tmp82~0;havoc ~__cil_tmp83~0.base, ~__cil_tmp83~0.offset;havoc ~__cil_tmp84~0.base, ~__cil_tmp84~0.offset;havoc ~__cil_tmp85~0;havoc ~__cil_tmp86~0;havoc ~__cil_tmp87~0;havoc ~__cil_tmp88~0;havoc ~__cil_tmp89~0;havoc ~__cil_tmp90~0.base, ~__cil_tmp90~0.offset;havoc ~__cil_tmp91~0;havoc ~__cil_tmp92~0;havoc ~__cil_tmp93~0.base, ~__cil_tmp93~0.offset;havoc ~__cil_tmp94~0;havoc ~__cil_tmp95~0;havoc ~__cil_tmp96~0;havoc ~__cil_tmp97~0;havoc ~__cil_tmp98~0;havoc ~__cil_tmp99~0;havoc ~__cil_tmp100~0.base, ~__cil_tmp100~0.offset;havoc ~__cil_tmp101~0.base, ~__cil_tmp101~0.offset;havoc ~__cil_tmp102~0;havoc ~__cil_tmp103~0;havoc ~__cil_tmp104~0;havoc ~__cil_tmp105~0.base, ~__cil_tmp105~0.offset;havoc ~__cil_tmp106~0;havoc ~__cil_tmp107~0;havoc ~__cil_tmp108~0;havoc ~__cil_tmp109~0.base, ~__cil_tmp109~0.offset;havoc ~__cil_tmp110~0;havoc ~__cil_tmp111~0.base, ~__cil_tmp111~0.offset;havoc ~__cil_tmp112~0;havoc ~__cil_tmp113~0.base, ~__cil_tmp113~0.offset;havoc ~__cil_tmp114~0;havoc ~__cil_tmp115~0;havoc ~__cil_tmp116~0.base, ~__cil_tmp116~0.offset;havoc ~__cil_tmp117~0;havoc ~__cil_tmp118~0.base, ~__cil_tmp118~0.offset;havoc ~__cil_tmp119~0.base, ~__cil_tmp119~0.offset;havoc ~__cil_tmp120~0.base, ~__cil_tmp120~0.offset;havoc ~__cil_tmp121~0;havoc ~__cil_tmp122~0; {1251#(not (= 0 inspect_~head.base))} is VALID [2020-07-10 15:27:28,598 INFO L280 TraceCheckUtils]: 33: Hoare triple {1251#(not (= 0 inspect_~head.base))} assume !false; {1251#(not (= 0 inspect_~head.base))} is VALID [2020-07-10 15:27:28,599 INFO L280 TraceCheckUtils]: 34: Hoare triple {1251#(not (= 0 inspect_~head.base))} assume ~head.base == 0 && ~head.offset == 0; {1221#false} is VALID [2020-07-10 15:27:28,599 INFO L263 TraceCheckUtils]: 35: Hoare triple {1221#false} call fail(); {1221#false} is VALID [2020-07-10 15:27:28,599 INFO L280 TraceCheckUtils]: 36: Hoare triple {1221#false} assume !false; {1221#false} is VALID [2020-07-10 15:27:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:27:28,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461439122] [2020-07-10 15:27:28,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:27:28,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-10 15:27:28,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946403676] [2020-07-10 15:27:28,606 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2020-07-10 15:27:28,606 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:27:28,606 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-10 15:27:28,661 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:28,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-10 15:27:28,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:27:28,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-10 15:27:28,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-10 15:27:28,663 INFO L87 Difference]: Start difference. First operand 143 states and 166 transitions. Second operand 9 states. [2020-07-10 15:27:34,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:34,299 INFO L93 Difference]: Finished difference Result 241 states and 289 transitions. [2020-07-10 15:27:34,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-10 15:27:34,299 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2020-07-10 15:27:34,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:27:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 15:27:34,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 289 transitions. [2020-07-10 15:27:34,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 15:27:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 289 transitions. [2020-07-10 15:27:34,313 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 289 transitions. [2020-07-10 15:27:34,976 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 289 edges. 289 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:34,989 INFO L225 Difference]: With dead ends: 241 [2020-07-10 15:27:34,989 INFO L226 Difference]: Without dead ends: 236 [2020-07-10 15:27:34,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-07-10 15:27:34,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-07-10 15:27:35,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 199. [2020-07-10 15:27:35,588 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:27:35,588 INFO L82 GeneralOperation]: Start isEquivalent. First operand 236 states. Second operand 199 states. [2020-07-10 15:27:35,588 INFO L74 IsIncluded]: Start isIncluded. First operand 236 states. Second operand 199 states. [2020-07-10 15:27:35,588 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 199 states. [2020-07-10 15:27:35,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:35,601 INFO L93 Difference]: Finished difference Result 236 states and 284 transitions. [2020-07-10 15:27:35,601 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 284 transitions. [2020-07-10 15:27:35,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:35,604 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:35,604 INFO L74 IsIncluded]: Start isIncluded. First operand 199 states. Second operand 236 states. [2020-07-10 15:27:35,604 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 236 states. [2020-07-10 15:27:35,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:35,616 INFO L93 Difference]: Finished difference Result 236 states and 284 transitions. [2020-07-10 15:27:35,617 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 284 transitions. [2020-07-10 15:27:35,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:35,618 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:35,619 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:27:35,619 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:27:35,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-07-10 15:27:35,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 238 transitions. [2020-07-10 15:27:35,628 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 238 transitions. Word has length 37 [2020-07-10 15:27:35,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:27:35,629 INFO L479 AbstractCegarLoop]: Abstraction has 199 states and 238 transitions. [2020-07-10 15:27:35,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-10 15:27:35,629 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 238 transitions. [2020-07-10 15:27:35,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-10 15:27:35,630 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:27:35,630 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-10 15:27:35,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:27:35,631 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:27:35,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:27:35,631 INFO L82 PathProgramCache]: Analyzing trace with hash -755462125, now seen corresponding path program 1 times [2020-07-10 15:27:35,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:27:35,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350242098] [2020-07-10 15:27:35,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:27:36,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 15:27:36,219 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CClosure.createEquality(CClosure.java:1015) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CCTerm.mergeInternal(CCTerm.java:405) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CCTerm.merge(CCTerm.java:377) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CClosure.setLiteral(CClosure.java:855) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.setLiteral(DPLLEngine.java:460) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.propagateTheories(DPLLEngine.java:290) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.propagateClauses(DPLLEngine.java:404) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.propagateInternal(DPLLEngine.java:243) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1148) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:96) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-10 15:27:36,227 INFO L168 Benchmark]: Toolchain (without parser) took 15253.21 ms. Allocated memory was 136.8 MB in the beginning and 437.8 MB in the end (delta: 300.9 MB). Free memory was 100.5 MB in the beginning and 304.6 MB in the end (delta: -204.1 MB). Peak memory consumption was 96.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:36,228 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-10 15:27:36,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 886.34 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 169.1 MB in the end (delta: -68.9 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:36,230 INFO L168 Benchmark]: Boogie Preprocessor took 144.60 ms. Allocated memory is still 200.8 MB. Free memory was 169.1 MB in the beginning and 163.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:36,231 INFO L168 Benchmark]: RCFGBuilder took 1384.08 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 163.4 MB in the beginning and 167.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:36,232 INFO L168 Benchmark]: TraceAbstraction took 12830.96 ms. Allocated memory was 230.7 MB in the beginning and 437.8 MB in the end (delta: 207.1 MB). Free memory was 167.8 MB in the beginning and 304.6 MB in the end (delta: -136.8 MB). Peak memory consumption was 70.3 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:36,236 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 886.34 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 169.1 MB in the end (delta: -68.9 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.60 ms. Allocated memory is still 200.8 MB. Free memory was 169.1 MB in the beginning and 163.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1384.08 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 163.4 MB in the beginning and 167.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12830.96 ms. Allocated memory was 230.7 MB in the beginning and 437.8 MB in the end (delta: 207.1 MB). Free memory was 167.8 MB in the beginning and 304.6 MB in the end (delta: -136.8 MB). Peak memory consumption was 70.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...