./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1225f82562543767c482452e9133e4a69d5dae70 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 10:43:39,116 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:43:39,117 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:43:39,124 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:43:39,124 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:43:39,125 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:43:39,125 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:43:39,127 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:43:39,128 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:43:39,128 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:43:39,129 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:43:39,129 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:43:39,130 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:43:39,130 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:43:39,131 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:43:39,131 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:43:39,132 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:43:39,133 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:43:39,135 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:43:39,136 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:43:39,136 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:43:39,137 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:43:39,139 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:43:39,139 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:43:39,139 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:43:39,140 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:43:39,141 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:43:39,141 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:43:39,142 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:43:39,143 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:43:39,143 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:43:39,144 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:43:39,144 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:43:39,144 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:43:39,145 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:43:39,145 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:43:39,145 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 10:43:39,155 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:43:39,155 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:43:39,156 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:43:39,156 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 10:43:39,156 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 10:43:39,156 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 10:43:39,157 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 10:43:39,157 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:43:39,157 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:43:39,157 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 10:43:39,157 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:43:39,157 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:43:39,158 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:43:39,158 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:43:39,158 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:43:39,158 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:43:39,158 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:43:39,158 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:43:39,158 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:43:39,158 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:43:39,158 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:43:39,159 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:43:39,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:43:39,159 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:43:39,159 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:43:39,159 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:43:39,159 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 10:43:39,159 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:43:39,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 10:43:39,159 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1225f82562543767c482452e9133e4a69d5dae70 [2018-11-10 10:43:39,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:43:39,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:43:39,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:43:39,193 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:43:39,193 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:43:39,193 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-11-10 10:43:39,229 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/data/2715f6601/00f16fdd2c0b4832a1658f6298a54ed1/FLAG63506862f [2018-11-10 10:43:39,652 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:43:39,652 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/sv-benchmarks/c/ldv-regression/stateful_check_false-unreach-call_false-termination.i [2018-11-10 10:43:39,657 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/data/2715f6601/00f16fdd2c0b4832a1658f6298a54ed1/FLAG63506862f [2018-11-10 10:43:39,667 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/data/2715f6601/00f16fdd2c0b4832a1658f6298a54ed1 [2018-11-10 10:43:39,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:43:39,671 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 10:43:39,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:43:39,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:43:39,675 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:43:39,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:43:39" (1/1) ... [2018-11-10 10:43:39,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10835ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:39, skipping insertion in model container [2018-11-10 10:43:39,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:43:39" (1/1) ... [2018-11-10 10:43:39,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:43:39,707 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:43:39,821 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:43:39,823 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:43:39,834 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:43:39,844 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:43:39,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:39 WrapperNode [2018-11-10 10:43:39,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:43:39,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:43:39,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:43:39,845 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:43:39,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:39" (1/1) ... [2018-11-10 10:43:39,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:39" (1/1) ... [2018-11-10 10:43:39,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:39" (1/1) ... [2018-11-10 10:43:39,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:39" (1/1) ... [2018-11-10 10:43:39,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:39" (1/1) ... [2018-11-10 10:43:39,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:39" (1/1) ... [2018-11-10 10:43:39,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:39" (1/1) ... [2018-11-10 10:43:39,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:43:39,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:43:39,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:43:39,869 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:43:39,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/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 [2018-11-10 10:43:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:43:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:43:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-10 10:43:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2018-11-10 10:43:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2018-11-10 10:43:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2018-11-10 10:43:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2018-11-10 10:43:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2018-11-10 10:43:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2018-11-10 10:43:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2018-11-10 10:43:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2018-11-10 10:43:39,941 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:43:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 10:43:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-10 10:43:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 10:43:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-11-10 10:43:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2018-11-10 10:43:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2018-11-10 10:43:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2018-11-10 10:43:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2018-11-10 10:43:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2018-11-10 10:43:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2018-11-10 10:43:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2018-11-10 10:43:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:43:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:43:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:43:40,134 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:43:40,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:43:40 BoogieIcfgContainer [2018-11-10 10:43:40,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:43:40,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:43:40,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:43:40,138 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:43:40,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:43:39" (1/3) ... [2018-11-10 10:43:40,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f656ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:43:40, skipping insertion in model container [2018-11-10 10:43:40,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:39" (2/3) ... [2018-11-10 10:43:40,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f656ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:43:40, skipping insertion in model container [2018-11-10 10:43:40,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:43:40" (3/3) ... [2018-11-10 10:43:40,140 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful_check_false-unreach-call_false-termination.i [2018-11-10 10:43:40,146 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:43:40,151 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 10:43:40,159 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 10:43:40,181 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 10:43:40,182 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:43:40,182 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:43:40,182 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:43:40,182 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:43:40,182 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:43:40,182 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:43:40,182 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:43:40,182 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:43:40,196 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-11-10 10:43:40,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 10:43:40,199 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:43:40,199 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:43:40,201 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:43:40,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:43:40,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1474762153, now seen corresponding path program 1 times [2018-11-10 10:43:40,205 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:43:40,206 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:43:40,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:43:40,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:43:40,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:43:40,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:43:40,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:43:40,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 10:43:40,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 10:43:40,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:43:40,299 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-11-10 10:43:40,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:43:40,317 INFO L93 Difference]: Finished difference Result 137 states and 182 transitions. [2018-11-10 10:43:40,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 10:43:40,318 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-10 10:43:40,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:43:40,326 INFO L225 Difference]: With dead ends: 137 [2018-11-10 10:43:40,326 INFO L226 Difference]: Without dead ends: 66 [2018-11-10 10:43:40,328 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:43:40,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-10 10:43:40,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-11-10 10:43:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-10 10:43:40,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 81 transitions. [2018-11-10 10:43:40,358 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 81 transitions. Word has length 16 [2018-11-10 10:43:40,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:43:40,359 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 81 transitions. [2018-11-10 10:43:40,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 10:43:40,359 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 81 transitions. [2018-11-10 10:43:40,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 10:43:40,359 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:43:40,360 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:43:40,360 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:43:40,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:43:40,361 INFO L82 PathProgramCache]: Analyzing trace with hash 634004630, now seen corresponding path program 1 times [2018-11-10 10:43:40,361 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:43:40,361 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:43:40,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:43:40,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:43:40,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:43:40,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:43:40,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 10:43:40,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 10:43:40,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 10:43:40,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 10:43:40,405 INFO L87 Difference]: Start difference. First operand 66 states and 81 transitions. Second operand 3 states. [2018-11-10 10:43:40,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:43:40,434 INFO L93 Difference]: Finished difference Result 110 states and 141 transitions. [2018-11-10 10:43:40,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 10:43:40,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-10 10:43:40,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:43:40,437 INFO L225 Difference]: With dead ends: 110 [2018-11-10 10:43:40,437 INFO L226 Difference]: Without dead ends: 104 [2018-11-10 10:43:40,438 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 10:43:40,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-10 10:43:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-11-10 10:43:40,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-10 10:43:40,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 134 transitions. [2018-11-10 10:43:40,451 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 134 transitions. Word has length 18 [2018-11-10 10:43:40,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:43:40,451 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 134 transitions. [2018-11-10 10:43:40,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 10:43:40,451 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 134 transitions. [2018-11-10 10:43:40,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 10:43:40,452 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:43:40,452 INFO L375 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] [2018-11-10 10:43:40,452 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:43:40,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:43:40,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1836780892, now seen corresponding path program 1 times [2018-11-10 10:43:40,452 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:43:40,452 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:43:40,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:43:40,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:43:40,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:43:40,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:43:40,482 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 10:43:40,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 10:43:40,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 10:43:40,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 10:43:40,483 INFO L87 Difference]: Start difference. First operand 104 states and 134 transitions. Second operand 3 states. [2018-11-10 10:43:40,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:43:40,546 INFO L93 Difference]: Finished difference Result 224 states and 303 transitions. [2018-11-10 10:43:40,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 10:43:40,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-11-10 10:43:40,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:43:40,548 INFO L225 Difference]: With dead ends: 224 [2018-11-10 10:43:40,548 INFO L226 Difference]: Without dead ends: 131 [2018-11-10 10:43:40,548 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 10:43:40,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-11-10 10:43:40,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2018-11-10 10:43:40,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-11-10 10:43:40,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 173 transitions. [2018-11-10 10:43:40,557 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 173 transitions. Word has length 30 [2018-11-10 10:43:40,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:43:40,557 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 173 transitions. [2018-11-10 10:43:40,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 10:43:40,557 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 173 transitions. [2018-11-10 10:43:40,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 10:43:40,558 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:43:40,558 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2018-11-10 10:43:40,558 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:43:40,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:43:40,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1833737564, now seen corresponding path program 1 times [2018-11-10 10:43:40,559 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:43:40,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:43:40,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:43:40,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:43:40,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:43:40,603 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 10:43:40,603 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 10:43:40,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:43:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:43:40,641 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:43:40,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:43:40,681 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 10:43:40,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2018-11-10 10:43:40,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 10:43:40,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 10:43:40,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 10:43:40,682 INFO L87 Difference]: Start difference. First operand 130 states and 173 transitions. Second operand 5 states. [2018-11-10 10:43:40,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:43:40,749 INFO L93 Difference]: Finished difference Result 304 states and 428 transitions. [2018-11-10 10:43:40,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 10:43:40,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2018-11-10 10:43:40,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:43:40,751 INFO L225 Difference]: With dead ends: 304 [2018-11-10 10:43:40,751 INFO L226 Difference]: Without dead ends: 185 [2018-11-10 10:43:40,752 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 10:43:40,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-11-10 10:43:40,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2018-11-10 10:43:40,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-11-10 10:43:40,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 251 transitions. [2018-11-10 10:43:40,768 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 251 transitions. Word has length 42 [2018-11-10 10:43:40,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:43:40,769 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 251 transitions. [2018-11-10 10:43:40,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 10:43:40,769 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 251 transitions. [2018-11-10 10:43:40,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-10 10:43:40,770 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:43:40,770 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:43:40,770 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:43:40,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:43:40,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1667794156, now seen corresponding path program 1 times [2018-11-10 10:43:40,771 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:43:40,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:43:40,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:43:40,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:43:40,820 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 10:43:40,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:43:40,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 10:43:40,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 10:43:40,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 10:43:40,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 10:43:40,822 INFO L87 Difference]: Start difference. First operand 182 states and 251 transitions. Second operand 4 states. [2018-11-10 10:43:40,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:43:40,884 INFO L93 Difference]: Finished difference Result 459 states and 663 transitions. [2018-11-10 10:43:40,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 10:43:40,884 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-11-10 10:43:40,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:43:40,886 INFO L225 Difference]: With dead ends: 459 [2018-11-10 10:43:40,886 INFO L226 Difference]: Without dead ends: 288 [2018-11-10 10:43:40,887 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 10:43:40,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2018-11-10 10:43:40,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 234. [2018-11-10 10:43:40,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-11-10 10:43:40,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 335 transitions. [2018-11-10 10:43:40,903 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 335 transitions. Word has length 54 [2018-11-10 10:43:40,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:43:40,903 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 335 transitions. [2018-11-10 10:43:40,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 10:43:40,903 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 335 transitions. [2018-11-10 10:43:40,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-10 10:43:40,904 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:43:40,905 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:43:40,905 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:43:40,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:43:40,905 INFO L82 PathProgramCache]: Analyzing trace with hash -913964484, now seen corresponding path program 1 times [2018-11-10 10:43:40,905 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:43:40,905 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:43:40,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:43:40,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:43:40,948 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-10 10:43:40,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:43:40,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 10:43:40,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 10:43:40,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 10:43:40,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 10:43:40,949 INFO L87 Difference]: Start difference. First operand 234 states and 335 transitions. Second operand 3 states. [2018-11-10 10:43:40,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:43:40,962 INFO L93 Difference]: Finished difference Result 351 states and 500 transitions. [2018-11-10 10:43:40,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 10:43:40,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-11-10 10:43:40,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:43:40,964 INFO L225 Difference]: With dead ends: 351 [2018-11-10 10:43:40,964 INFO L226 Difference]: Without dead ends: 128 [2018-11-10 10:43:40,965 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 10:43:40,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-11-10 10:43:40,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-11-10 10:43:40,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-11-10 10:43:40,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 172 transitions. [2018-11-10 10:43:40,973 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 172 transitions. Word has length 67 [2018-11-10 10:43:40,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:43:40,974 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 172 transitions. [2018-11-10 10:43:40,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 10:43:40,974 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 172 transitions. [2018-11-10 10:43:40,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-10 10:43:40,975 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:43:40,976 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:43:40,976 INFO L424 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:43:40,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:43:40,976 INFO L82 PathProgramCache]: Analyzing trace with hash -532585622, now seen corresponding path program 1 times [2018-11-10 10:43:40,976 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:43:40,976 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:43:40,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:43:40,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:43:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:43:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:43:41,019 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 10:43:41,035 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,036 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,037 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,037 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,037 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,037 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,038 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,038 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,038 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,039 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,039 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,039 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,040 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,040 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:43:41 BoogieIcfgContainer [2018-11-10 10:43:41,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:43:41,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:43:41,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:43:41,048 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:43:41,048 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:43:40" (3/4) ... [2018-11-10 10:43:41,050 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 10:43:41,053 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,053 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,053 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,054 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,054 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,054 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,054 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,057 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,057 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,057 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,058 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,058 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,058 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,059 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2018-11-10 10:43:41,099 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ef6387ab-06a8-46c0-ada9-f9d6bd04ee1c/bin-2019/uautomizer/witness.graphml [2018-11-10 10:43:41,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:43:41,100 INFO L168 Benchmark]: Toolchain (without parser) took 1429.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 960.3 MB in the beginning and 988.5 MB in the end (delta: -28.1 MB). Peak memory consumption was 112.4 MB. Max. memory is 11.5 GB. [2018-11-10 10:43:41,101 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:43:41,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.87 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 10:43:41,102 INFO L168 Benchmark]: Boogie Preprocessor took 23.69 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:43:41,102 INFO L168 Benchmark]: RCFGBuilder took 265.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -177.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-10 10:43:41,103 INFO L168 Benchmark]: TraceAbstraction took 912.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.8 MB in the end (delta: 129.1 MB). Peak memory consumption was 129.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:43:41,103 INFO L168 Benchmark]: Witness Printer took 51.77 ms. Allocated memory is still 1.2 GB. Free memory was 993.8 MB in the beginning and 988.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 10:43:41,105 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.87 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.69 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 265.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -177.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 912.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.8 MB in the end (delta: 129.1 MB). Peak memory consumption was 129.1 MB. Max. memory is 11.5 GB. * Witness Printer took 51.77 ms. Allocated memory is still 1.2 GB. Free memory was 993.8 MB in the beginning and 988.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int ldv_mutex = 1; [L11] int open_called = 0; VAL [\old(ldv_mutex)=4, \old(open_called)=3, ldv_mutex=1, open_called=0] [L74] int ldv_s_misc_fops_file_operations = 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L75] CALL my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L69] open_called = 0 [L70] RET return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L75] my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, my_init()=0, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L81] COND TRUE ldv_s_misc_fops_file_operations==0 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L82] CALL misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L57] COND TRUE __VERIFIER_nondet_int() [L59] RET return 1; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=1, ldv_mutex=1, open_called=0] [L82] misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, misc_open()=1, open_called=0] [L83] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L89] COND TRUE ldv_s_misc_fops_file_operations==1 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L90] CALL misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L52] RET return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L90] misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, misc_read()=0, open_called=0] [L91] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L96] case 2: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L97] COND TRUE ldv_s_misc_fops_file_operations==2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L98] CALL misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L48] RET return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L98] misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, misc_llseek()=0, open_called=0] [L99] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L96] case 2: [L104] case 3: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L105] COND TRUE ldv_s_misc_fops_file_operations==3 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L106] CALL misc_release() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L34] COND FALSE !(\read(open_called)) VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L41] CALL mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L16] COND TRUE (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L17] RET ldv_mutex = 2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L41] mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L42] CALL mutex_lock() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L16] COND FALSE !((ldv_mutex == 1) ? 0 : __blast_assert()) VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L16] CALL __blast_assert() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L4] __VERIFIER_error() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 75 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 466 SDtfs, 160 SDslu, 425 SDs, 0 SdLazy, 89 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 58 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 262 ConstructedInterpolants, 0 QuantifiedInterpolants, 17482 SizeOfPredicates, 1 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 45/53 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...