./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe013_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe013_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/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 6eedd5c6f5f8f6c5abbeed029cf822af84d705e7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:56:16,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:56:16,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:56:16,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:56:16,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:56:16,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:56:16,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:56:16,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:56:16,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:56:16,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:56:16,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:56:16,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:56:16,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:56:16,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:56:16,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:56:16,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:56:16,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:56:16,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:56:16,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:56:16,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:56:16,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:56:16,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:56:16,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:56:16,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:56:16,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:56:16,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:56:16,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:56:16,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:56:16,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:56:16,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:56:16,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:56:16,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:56:16,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:56:16,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:56:16,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:56:16,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:56:16,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:56:16,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:56:16,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:56:16,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:56:16,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:56:16,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:56:16,454 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:56:16,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:56:16,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:56:16,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:56:16,456 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:56:16,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:56:16,456 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:56:16,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:56:16,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:56:16,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:56:16,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:56:16,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:56:16,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:56:16,457 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:56:16,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:56:16,457 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:56:16,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:56:16,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:56:16,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:56:16,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:56:16,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:56:16,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:56:16,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:56:16,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:56:16,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:56:16,459 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:56:16,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:56:16,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:56:16,460 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_74f16782-93d0-4907-b360-06f6f06b3885/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 -> 6eedd5c6f5f8f6c5abbeed029cf822af84d705e7 [2019-11-25 08:56:16,643 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:56:16,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:56:16,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:56:16,665 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:56:16,666 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:56:16,667 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe013_tso.oepc.i [2019-11-25 08:56:16,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/bin/uautomizer/data/efa8e8dd2/27c87f795d7b47389d0871e55c9e5dd0/FLAG9bf4335f2 [2019-11-25 08:56:17,208 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:56:17,208 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/sv-benchmarks/c/pthread-wmm/safe013_tso.oepc.i [2019-11-25 08:56:17,221 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/bin/uautomizer/data/efa8e8dd2/27c87f795d7b47389d0871e55c9e5dd0/FLAG9bf4335f2 [2019-11-25 08:56:17,459 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/bin/uautomizer/data/efa8e8dd2/27c87f795d7b47389d0871e55c9e5dd0 [2019-11-25 08:56:17,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:56:17,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:56:17,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:17,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:56:17,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:56:17,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:17" (1/1) ... [2019-11-25 08:56:17,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195f60e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:17, skipping insertion in model container [2019-11-25 08:56:17,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:17" (1/1) ... [2019-11-25 08:56:17,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:56:17,516 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:56:18,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:18,020 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:56:18,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:18,162 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:56:18,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:18 WrapperNode [2019-11-25 08:56:18,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:18,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:18,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:56:18,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:56:18,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:18" (1/1) ... [2019-11-25 08:56:18,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:18" (1/1) ... [2019-11-25 08:56:18,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:18,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:56:18,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:56:18,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:56:18,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:18" (1/1) ... [2019-11-25 08:56:18,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:18" (1/1) ... [2019-11-25 08:56:18,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:18" (1/1) ... [2019-11-25 08:56:18,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:18" (1/1) ... [2019-11-25 08:56:18,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:18" (1/1) ... [2019-11-25 08:56:18,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:18" (1/1) ... [2019-11-25 08:56:18,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:18" (1/1) ... [2019-11-25 08:56:18,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:56:18,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:56:18,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:56:18,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:56:18,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/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 [2019-11-25 08:56:18,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:56:18,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:56:18,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:56:18,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:56:18,312 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:56:18,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:56:18,312 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:56:18,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:56:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-25 08:56:18,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-25 08:56:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:56:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:56:18,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:56:18,315 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:56:18,629 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:56:18,629 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:56:18,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:18 BoogieIcfgContainer [2019-11-25 08:56:18,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:56:18,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:56:18,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:56:18,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:56:18,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:56:17" (1/3) ... [2019-11-25 08:56:18,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f34cc91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:18, skipping insertion in model container [2019-11-25 08:56:18,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:18" (2/3) ... [2019-11-25 08:56:18,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f34cc91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:18, skipping insertion in model container [2019-11-25 08:56:18,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:18" (3/3) ... [2019-11-25 08:56:18,637 INFO L109 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2019-11-25 08:56:18,676 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,677 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,677 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,677 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,677 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,678 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,678 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,678 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,678 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,678 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,679 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,679 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,679 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,679 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,679 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,680 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,680 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,680 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,680 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,681 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,681 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,681 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,681 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,681 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,682 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,682 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,682 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,682 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,682 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,683 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,683 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,683 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,683 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,683 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,684 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,684 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,684 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,684 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,684 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,685 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,685 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,685 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,685 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,685 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,686 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,686 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,686 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,686 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,686 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,687 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,687 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,687 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,687 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,687 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:56:18,717 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:56:18,717 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:56:18,726 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:56:18,733 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:56:18,750 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:56:18,750 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:56:18,750 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:56:18,750 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:56:18,750 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:56:18,751 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:56:18,751 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:56:18,751 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:56:18,761 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-25 08:56:18,907 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-11-25 08:56:18,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-11-25 08:56:18,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-25 08:56:18,937 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:18,937 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:18,938 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:18,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:18,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1728701115, now seen corresponding path program 1 times [2019-11-25 08:56:18,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:18,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488970533] [2019-11-25 08:56:18,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:19,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:19,274 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488970533] [2019-11-25 08:56:19,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:19,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:56:19,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344600702] [2019-11-25 08:56:19,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:56:19,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:19,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:56:19,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:56:19,294 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-11-25 08:56:19,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:19,412 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-11-25 08:56:19,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:56:19,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-25 08:56:19,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:19,448 INFO L225 Difference]: With dead ends: 1295 [2019-11-25 08:56:19,449 INFO L226 Difference]: Without dead ends: 601 [2019-11-25 08:56:19,451 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 [2019-11-25 08:56:19,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-11-25 08:56:19,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-11-25 08:56:19,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-11-25 08:56:19,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-11-25 08:56:19,559 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-11-25 08:56:19,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:19,559 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-11-25 08:56:19,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:56:19,560 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-11-25 08:56:19,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-25 08:56:19,563 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:19,563 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:19,563 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:19,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:19,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1496674403, now seen corresponding path program 1 times [2019-11-25 08:56:19,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:19,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095078864] [2019-11-25 08:56:19,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:19,688 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095078864] [2019-11-25 08:56:19,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:19,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:56:19,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527118125] [2019-11-25 08:56:19,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:56:19,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:19,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:56:19,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:56:19,690 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-11-25 08:56:19,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:19,765 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-11-25 08:56:19,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:56:19,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-25 08:56:19,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:19,771 INFO L225 Difference]: With dead ends: 601 [2019-11-25 08:56:19,771 INFO L226 Difference]: Without dead ends: 538 [2019-11-25 08:56:19,777 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:56:19,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-25 08:56:19,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-25 08:56:19,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-25 08:56:19,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-11-25 08:56:19,832 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-11-25 08:56:19,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:19,832 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-11-25 08:56:19,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:56:19,833 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-11-25 08:56:19,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-25 08:56:19,835 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:19,836 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:19,836 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:19,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:19,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1098186417, now seen corresponding path program 1 times [2019-11-25 08:56:19,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:19,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725417698] [2019-11-25 08:56:19,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:19,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:19,988 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725417698] [2019-11-25 08:56:19,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:19,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:56:19,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390156070] [2019-11-25 08:56:19,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:56:19,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:19,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:56:19,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:56:19,990 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-11-25 08:56:20,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:20,081 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-11-25 08:56:20,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:56:20,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-25 08:56:20,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:20,085 INFO L225 Difference]: With dead ends: 403 [2019-11-25 08:56:20,086 INFO L226 Difference]: Without dead ends: 349 [2019-11-25 08:56:20,086 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:56:20,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-11-25 08:56:20,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-11-25 08:56:20,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-25 08:56:20,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-11-25 08:56:20,101 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-11-25 08:56:20,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:20,102 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-11-25 08:56:20,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:56:20,102 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-11-25 08:56:20,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-25 08:56:20,106 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:20,106 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:20,107 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:20,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:20,107 INFO L82 PathProgramCache]: Analyzing trace with hash 798079139, now seen corresponding path program 1 times [2019-11-25 08:56:20,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:20,108 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609953984] [2019-11-25 08:56:20,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:20,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:20,283 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609953984] [2019-11-25 08:56:20,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:20,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:56:20,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966161024] [2019-11-25 08:56:20,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:56:20,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:20,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:56:20,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:56:20,285 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 6 states. [2019-11-25 08:56:20,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:20,404 INFO L93 Difference]: Finished difference Result 520 states and 1395 transitions. [2019-11-25 08:56:20,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:56:20,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-11-25 08:56:20,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:20,407 INFO L225 Difference]: With dead ends: 520 [2019-11-25 08:56:20,408 INFO L226 Difference]: Without dead ends: 277 [2019-11-25 08:56:20,408 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:56:20,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2019-11-25 08:56:20,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2019-11-25 08:56:20,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-11-25 08:56:20,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 726 transitions. [2019-11-25 08:56:20,420 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 726 transitions. Word has length 34 [2019-11-25 08:56:20,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:20,420 INFO L462 AbstractCegarLoop]: Abstraction has 277 states and 726 transitions. [2019-11-25 08:56:20,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:56:20,420 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 726 transitions. [2019-11-25 08:56:20,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-25 08:56:20,422 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:20,422 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:20,422 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:20,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:20,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1691516237, now seen corresponding path program 2 times [2019-11-25 08:56:20,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:20,423 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507325072] [2019-11-25 08:56:20,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:20,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:20,596 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507325072] [2019-11-25 08:56:20,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:20,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:56:20,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802973272] [2019-11-25 08:56:20,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:56:20,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:20,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:56:20,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:56:20,598 INFO L87 Difference]: Start difference. First operand 277 states and 726 transitions. Second operand 8 states. [2019-11-25 08:56:20,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:20,732 INFO L93 Difference]: Finished difference Result 448 states and 1206 transitions. [2019-11-25 08:56:20,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:56:20,733 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-25 08:56:20,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:20,736 INFO L225 Difference]: With dead ends: 448 [2019-11-25 08:56:20,736 INFO L226 Difference]: Without dead ends: 265 [2019-11-25 08:56:20,736 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:56:20,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2019-11-25 08:56:20,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2019-11-25 08:56:20,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2019-11-25 08:56:20,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 696 transitions. [2019-11-25 08:56:20,748 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 696 transitions. Word has length 34 [2019-11-25 08:56:20,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:20,748 INFO L462 AbstractCegarLoop]: Abstraction has 265 states and 696 transitions. [2019-11-25 08:56:20,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:56:20,748 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 696 transitions. [2019-11-25 08:56:20,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-25 08:56:20,749 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:20,750 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:20,750 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:20,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:20,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1527739903, now seen corresponding path program 3 times [2019-11-25 08:56:20,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:20,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239786622] [2019-11-25 08:56:20,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:20,887 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239786622] [2019-11-25 08:56:20,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:20,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:56:20,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458780377] [2019-11-25 08:56:20,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:56:20,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:20,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:56:20,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:56:20,889 INFO L87 Difference]: Start difference. First operand 265 states and 696 transitions. Second operand 7 states. [2019-11-25 08:56:21,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:21,006 INFO L93 Difference]: Finished difference Result 211 states and 534 transitions. [2019-11-25 08:56:21,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:56:21,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-25 08:56:21,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:21,007 INFO L225 Difference]: With dead ends: 211 [2019-11-25 08:56:21,007 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:56:21,007 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:56:21,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:56:21,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:56:21,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:56:21,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:56:21,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-25 08:56:21,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:21,009 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:56:21,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:56:21,009 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:56:21,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:56:21,012 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:56:21,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:56:21 BasicIcfg [2019-11-25 08:56:21,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:56:21,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:56:21,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:56:21,014 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:56:21,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:18" (3/4) ... [2019-11-25 08:56:21,019 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:56:21,030 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:56:21,030 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:56:21,030 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-25 08:56:21,046 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-25 08:56:21,046 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:56:21,046 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:56:21,086 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_74f16782-93d0-4907-b360-06f6f06b3885/bin/uautomizer/witness.graphml [2019-11-25 08:56:21,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:56:21,088 INFO L168 Benchmark]: Toolchain (without parser) took 3625.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -107.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:21,089 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:21,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.62 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.7 MB). Free memory was 939.3 MB in the beginning and 977.2 MB in the end (delta: -37.9 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:21,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.65 ms. Allocated memory is still 1.0 GB. Free memory is still 977.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:21,090 INFO L168 Benchmark]: Boogie Preprocessor took 22.75 ms. Allocated memory is still 1.0 GB. Free memory is still 977.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:21,091 INFO L168 Benchmark]: RCFGBuilder took 373.96 ms. Allocated memory is still 1.0 GB. Free memory was 977.2 MB in the beginning and 949.4 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:21,091 INFO L168 Benchmark]: TraceAbstraction took 2382.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 949.4 MB in the beginning and 1.0 GB in the end (delta: -99.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:21,092 INFO L168 Benchmark]: Witness Printer took 72.18 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: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:21,095 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 699.62 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.7 MB). Free memory was 939.3 MB in the beginning and 977.2 MB in the end (delta: -37.9 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.65 ms. Allocated memory is still 1.0 GB. Free memory is still 977.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.75 ms. Allocated memory is still 1.0 GB. Free memory is still 977.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 373.96 ms. Allocated memory is still 1.0 GB. Free memory was 977.2 MB in the beginning and 949.4 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2382.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 949.4 MB in the beginning and 1.0 GB in the end (delta: -99.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 72.18 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: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 13 procedures, 90 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 285 SDtfs, 383 SDslu, 712 SDs, 0 SdLazy, 101 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 18372 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...