./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/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 b3e737313822321e0eb735a05809c2d5347ec165 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:12:44,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:12:44,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:12:44,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:12:44,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:12:44,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:12:44,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:12:44,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:12:44,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:12:44,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:12:44,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:12:44,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:12:44,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:12:44,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:12:44,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:12:44,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:12:44,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:12:44,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:12:44,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:12:44,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:12:44,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:12:44,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:12:44,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:12:44,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:12:44,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:12:44,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:12:44,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:12:44,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:12:44,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:12:44,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:12:44,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:12:44,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:12:44,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:12:44,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:12:44,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:12:44,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:12:44,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:12:44,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:12:44,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:12:44,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:12:44,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:12:44,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 15:12:44,321 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:12:44,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:12:44,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:12:44,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:12:44,322 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:12:44,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:12:44,323 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:12:44,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:12:44,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:12:44,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:12:44,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:12:44,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:12:44,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:12:44,324 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:12:44,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:12:44,324 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:12:44,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:12:44,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:12:44,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:12:44,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:12:44,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:12:44,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:12:44,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:12:44,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:12:44,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:12:44,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:12:44,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:12:44,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:12:44,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:12:44,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/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 -> b3e737313822321e0eb735a05809c2d5347ec165 [2019-12-07 15:12:44,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:12:44,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:12:44,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:12:44,442 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:12:44,443 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:12:44,443 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2019-12-07 15:12:44,485 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/uautomizer/data/4021b77ad/75ce134e30854ec1818cd5191b0438cd/FLAG374ea7598 [2019-12-07 15:12:44,944 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:12:44,945 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2019-12-07 15:12:44,955 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/uautomizer/data/4021b77ad/75ce134e30854ec1818cd5191b0438cd/FLAG374ea7598 [2019-12-07 15:12:44,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/uautomizer/data/4021b77ad/75ce134e30854ec1818cd5191b0438cd [2019-12-07 15:12:44,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:12:44,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:12:44,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:12:44,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:12:44,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:12:44,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:12:44" (1/1) ... [2019-12-07 15:12:44,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae2dff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:44, skipping insertion in model container [2019-12-07 15:12:44,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:12:44" (1/1) ... [2019-12-07 15:12:44,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:12:45,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:12:45,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:12:45,234 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:12:45,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:12:45,317 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:12:45,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45 WrapperNode [2019-12-07 15:12:45,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:12:45,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:12:45,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:12:45,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:12:45,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:12:45,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:12:45,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:12:45,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:12:45,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... [2019-12-07 15:12:45,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:12:45,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:12:45,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:12:45,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:12:45,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/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 [2019-12-07 15:12:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:12:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:12:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2019-12-07 15:12:45,419 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2019-12-07 15:12:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:12:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:12:45,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:12:45,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:12:45,420 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2019-12-07 15:12:45,420 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2019-12-07 15:12:45,421 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-07 15:12:45,507 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_read_lock_returnLabel [2019-12-07 15:12:45,509 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_read_lock_returnLabel [2019-12-07 15:12:45,601 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_write_lock_returnLabel [2019-12-07 15:12:45,607 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:12:45,607 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 15:12:45,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:12:45 BoogieIcfgContainer [2019-12-07 15:12:45,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:12:45,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:12:45,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:12:45,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:12:45,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:12:44" (1/3) ... [2019-12-07 15:12:45,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d570c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:12:45, skipping insertion in model container [2019-12-07 15:12:45,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:12:45" (2/3) ... [2019-12-07 15:12:45,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d570c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:12:45, skipping insertion in model container [2019-12-07 15:12:45,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:12:45" (3/3) ... [2019-12-07 15:12:45,612 INFO L109 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2019-12-07 15:12:45,618 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 15:12:45,618 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:12:45,623 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:12:45,623 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 15:12:45,644 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,645 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,645 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,645 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,645 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,646 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,646 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,646 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,646 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,647 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,647 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,647 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,647 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,647 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,648 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,648 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,648 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,648 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,648 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,649 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,649 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,649 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,649 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,649 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,650 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,650 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,650 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,650 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,650 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,650 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:12:45,685 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-07 15:12:45,697 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:12:45,698 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:12:45,698 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:12:45,698 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:12:45,698 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:12:45,698 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:12:45,698 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:12:45,698 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:12:45,709 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 96 transitions [2019-12-07 15:12:45,710 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions [2019-12-07 15:12:45,764 INFO L134 PetriNetUnfolder]: 19/130 cut-off events. [2019-12-07 15:12:45,764 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 15:12:45,769 INFO L76 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 130 events. 19/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 443 event pairs. 87/213 useless extension candidates. Maximal degree in co-relation 87. Up to 12 conditions per place. [2019-12-07 15:12:45,773 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions [2019-12-07 15:12:45,794 INFO L134 PetriNetUnfolder]: 19/130 cut-off events. [2019-12-07 15:12:45,794 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 15:12:45,796 INFO L76 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 130 events. 19/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 443 event pairs. 87/213 useless extension candidates. Maximal degree in co-relation 87. Up to 12 conditions per place. [2019-12-07 15:12:45,799 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2072 [2019-12-07 15:12:45,799 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 15:12:46,672 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-12-07 15:12:46,893 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6304 [2019-12-07 15:12:46,893 INFO L214 etLargeBlockEncoding]: Total number of compositions: 41 [2019-12-07 15:12:46,896 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 55 transitions [2019-12-07 15:12:47,113 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4306 states. [2019-12-07 15:12:47,115 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states. [2019-12-07 15:12:47,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 15:12:47,119 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:47,120 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:12:47,120 INFO L410 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-07 15:12:47,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:47,124 INFO L82 PathProgramCache]: Analyzing trace with hash 2025569535, now seen corresponding path program 1 times [2019-12-07 15:12:47,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:12:47,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18126011] [2019-12-07 15:12:47,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:12:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:47,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:12:47,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18126011] [2019-12-07 15:12:47,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:47,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:12:47,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025077269] [2019-12-07 15:12:47,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:12:47,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:12:47,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:12:47,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:12:47,270 INFO L87 Difference]: Start difference. First operand 4306 states. Second operand 4 states. [2019-12-07 15:12:47,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:47,449 INFO L93 Difference]: Finished difference Result 9727 states and 31398 transitions. [2019-12-07 15:12:47,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:12:47,450 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 15:12:47,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:47,507 INFO L225 Difference]: With dead ends: 9727 [2019-12-07 15:12:47,508 INFO L226 Difference]: Without dead ends: 7325 [2019-12-07 15:12:47,509 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:12:47,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2019-12-07 15:12:47,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 4376. [2019-12-07 15:12:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4376 states. [2019-12-07 15:12:47,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14751 transitions. [2019-12-07 15:12:47,710 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14751 transitions. Word has length 8 [2019-12-07 15:12:47,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:47,711 INFO L462 AbstractCegarLoop]: Abstraction has 4376 states and 14751 transitions. [2019-12-07 15:12:47,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:12:47,711 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14751 transitions. [2019-12-07 15:12:47,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:12:47,712 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:47,712 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:12:47,712 INFO L410 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-07 15:12:47,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:47,713 INFO L82 PathProgramCache]: Analyzing trace with hash 952094142, now seen corresponding path program 1 times [2019-12-07 15:12:47,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:12:47,713 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027782932] [2019-12-07 15:12:47,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:12:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:47,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:12:47,764 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027782932] [2019-12-07 15:12:47,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:47,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:12:47,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733412624] [2019-12-07 15:12:47,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:12:47,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:12:47,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:12:47,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:12:47,766 INFO L87 Difference]: Start difference. First operand 4376 states and 14751 transitions. Second operand 4 states. [2019-12-07 15:12:47,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:47,893 INFO L93 Difference]: Finished difference Result 6872 states and 20348 transitions. [2019-12-07 15:12:47,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:12:47,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 15:12:47,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:47,937 INFO L225 Difference]: With dead ends: 6872 [2019-12-07 15:12:47,938 INFO L226 Difference]: Without dead ends: 6776 [2019-12-07 15:12:47,938 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:12:47,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6776 states. [2019-12-07 15:12:48,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6776 to 4772. [2019-12-07 15:12:48,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4772 states. [2019-12-07 15:12:48,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4772 states to 4772 states and 14625 transitions. [2019-12-07 15:12:48,064 INFO L78 Accepts]: Start accepts. Automaton has 4772 states and 14625 transitions. Word has length 10 [2019-12-07 15:12:48,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:48,064 INFO L462 AbstractCegarLoop]: Abstraction has 4772 states and 14625 transitions. [2019-12-07 15:12:48,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:12:48,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4772 states and 14625 transitions. [2019-12-07 15:12:48,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:12:48,065 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:48,065 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:12:48,066 INFO L410 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-07 15:12:48,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:48,066 INFO L82 PathProgramCache]: Analyzing trace with hash -525587508, now seen corresponding path program 2 times [2019-12-07 15:12:48,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:12:48,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830880192] [2019-12-07 15:12:48,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:12:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:48,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:12:48,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830880192] [2019-12-07 15:12:48,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:48,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:12:48,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999131052] [2019-12-07 15:12:48,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:12:48,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:12:48,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:12:48,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:12:48,094 INFO L87 Difference]: Start difference. First operand 4772 states and 14625 transitions. Second operand 3 states. [2019-12-07 15:12:48,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:48,120 INFO L93 Difference]: Finished difference Result 2244 states and 5528 transitions. [2019-12-07 15:12:48,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:12:48,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-07 15:12:48,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:48,127 INFO L225 Difference]: With dead ends: 2244 [2019-12-07 15:12:48,127 INFO L226 Difference]: Without dead ends: 2180 [2019-12-07 15:12:48,127 INFO L630 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 [2019-12-07 15:12:48,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2019-12-07 15:12:48,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2019-12-07 15:12:48,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2019-12-07 15:12:48,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 5394 transitions. [2019-12-07 15:12:48,168 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 5394 transitions. Word has length 10 [2019-12-07 15:12:48,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:48,168 INFO L462 AbstractCegarLoop]: Abstraction has 2180 states and 5394 transitions. [2019-12-07 15:12:48,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:12:48,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 5394 transitions. [2019-12-07 15:12:48,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 15:12:48,169 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:48,169 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:12:48,170 INFO L410 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-07 15:12:48,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:48,170 INFO L82 PathProgramCache]: Analyzing trace with hash 2052037428, now seen corresponding path program 1 times [2019-12-07 15:12:48,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:12:48,170 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455297457] [2019-12-07 15:12:48,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:12:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:48,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:12:48,199 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455297457] [2019-12-07 15:12:48,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:48,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:12:48,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141865797] [2019-12-07 15:12:48,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:12:48,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:12:48,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:12:48,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:12:48,201 INFO L87 Difference]: Start difference. First operand 2180 states and 5394 transitions. Second operand 4 states. [2019-12-07 15:12:48,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:48,241 INFO L93 Difference]: Finished difference Result 2507 states and 6115 transitions. [2019-12-07 15:12:48,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:12:48,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-07 15:12:48,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:48,245 INFO L225 Difference]: With dead ends: 2507 [2019-12-07 15:12:48,245 INFO L226 Difference]: Without dead ends: 1814 [2019-12-07 15:12:48,246 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:12:48,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2019-12-07 15:12:48,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1440. [2019-12-07 15:12:48,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2019-12-07 15:12:48,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 3564 transitions. [2019-12-07 15:12:48,270 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 3564 transitions. Word has length 12 [2019-12-07 15:12:48,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:48,270 INFO L462 AbstractCegarLoop]: Abstraction has 1440 states and 3564 transitions. [2019-12-07 15:12:48,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:12:48,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 3564 transitions. [2019-12-07 15:12:48,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 15:12:48,272 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:48,272 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:12:48,272 INFO L410 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-07 15:12:48,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:48,273 INFO L82 PathProgramCache]: Analyzing trace with hash -428981579, now seen corresponding path program 1 times [2019-12-07 15:12:48,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:12:48,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262165439] [2019-12-07 15:12:48,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:12:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:48,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:12:48,313 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262165439] [2019-12-07 15:12:48,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:48,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:12:48,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084327664] [2019-12-07 15:12:48,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:12:48,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:12:48,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:12:48,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:12:48,314 INFO L87 Difference]: Start difference. First operand 1440 states and 3564 transitions. Second operand 5 states. [2019-12-07 15:12:48,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:48,343 INFO L93 Difference]: Finished difference Result 1734 states and 4180 transitions. [2019-12-07 15:12:48,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:12:48,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-12-07 15:12:48,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:48,347 INFO L225 Difference]: With dead ends: 1734 [2019-12-07 15:12:48,347 INFO L226 Difference]: Without dead ends: 1508 [2019-12-07 15:12:48,347 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:12:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2019-12-07 15:12:48,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1376. [2019-12-07 15:12:48,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-12-07 15:12:48,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 3414 transitions. [2019-12-07 15:12:48,371 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 3414 transitions. Word has length 19 [2019-12-07 15:12:48,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:48,372 INFO L462 AbstractCegarLoop]: Abstraction has 1376 states and 3414 transitions. [2019-12-07 15:12:48,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:12:48,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 3414 transitions. [2019-12-07 15:12:48,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 15:12:48,374 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:12:48,374 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:12:48,374 INFO L410 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-07 15:12:48,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:12:48,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1672493533, now seen corresponding path program 2 times [2019-12-07 15:12:48,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:12:48,375 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060970235] [2019-12-07 15:12:48,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:12:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:12:48,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:12:48,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060970235] [2019-12-07 15:12:48,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:12:48,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:12:48,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148595036] [2019-12-07 15:12:48,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:12:48,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:12:48,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:12:48,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:12:48,423 INFO L87 Difference]: Start difference. First operand 1376 states and 3414 transitions. Second operand 5 states. [2019-12-07 15:12:48,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:12:48,445 INFO L93 Difference]: Finished difference Result 530 states and 1160 transitions. [2019-12-07 15:12:48,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:12:48,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-12-07 15:12:48,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:12:48,445 INFO L225 Difference]: With dead ends: 530 [2019-12-07 15:12:48,445 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:12:48,445 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:12:48,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:12:48,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:12:48,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:12:48,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:12:48,446 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-12-07 15:12:48,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:12:48,446 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:12:48,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:12:48,446 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:12:48,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:12:48,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:12:48 BasicIcfg [2019-12-07 15:12:48,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:12:48,449 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:12:48,449 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:12:48,449 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:12:48,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:12:45" (3/4) ... [2019-12-07 15:12:48,452 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:12:48,456 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2019-12-07 15:12:48,457 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2019-12-07 15:12:48,460 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2019-12-07 15:12:48,460 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 15:12:48,460 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 15:12:48,488 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_789b567d-a9dc-4b4e-8b31-afa6dd23a97a/bin/uautomizer/witness.graphml [2019-12-07 15:12:48,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:12:48,489 INFO L168 Benchmark]: Toolchain (without parser) took 3522.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.8 MB in the beginning and 925.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 157.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:12:48,489 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:12:48,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -114.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:12:48,490 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:12:48,490 INFO L168 Benchmark]: Boogie Preprocessor took 20.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:12:48,490 INFO L168 Benchmark]: RCFGBuilder took 231.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:12:48,491 INFO L168 Benchmark]: TraceAbstraction took 2840.40 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.0 GB in the beginning and 928.0 MB in the end (delta: 92.6 MB). Peak memory consumption was 154.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:12:48,491 INFO L168 Benchmark]: Witness Printer took 38.99 ms. Allocated memory is still 1.2 GB. Free memory was 928.0 MB in the beginning and 925.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:12:48,493 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 350.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -114.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 231.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2840.40 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.0 GB in the beginning and 928.0 MB in the end (delta: 92.6 MB). Peak memory consumption was 154.5 MB. Max. memory is 11.5 GB. * Witness Printer took 38.99 ms. Allocated memory is still 1.2 GB. Free memory was 928.0 MB in the beginning and 925.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 95 ProgramPointsBefore, 55 ProgramPointsAfterwards, 96 TransitionsBefore, 55 TransitionsAfterwards, 2072 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 729 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 28 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 6304 CheckedPairsTotal, 41 TotalNumberOfCompositions - PositiveResult [Line: 697]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 66 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 461 SDtfs, 420 SDslu, 511 SDs, 0 SdLazy, 135 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4772occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 5459 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 2204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...