./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe005_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe005_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/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 c89976f473b30c374b1d5730d489de69058dd930 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:56:10,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:10,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:10,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:10,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:10,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:10,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:10,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:10,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:10,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:10,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:10,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:10,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:10,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:10,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:10,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:10,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:10,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:10,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:10,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:10,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:10,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:10,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:10,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:10,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:10,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:10,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:10,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:10,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:10,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:10,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:10,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:10,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:10,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:10,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:10,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:10,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:10,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:10,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:10,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:10,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:10,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:56:10,542 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:10,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:10,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:10,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:10,544 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:10,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:10,544 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:10,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:10,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:10,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:10,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:56:10,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:10,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:56:10,545 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:10,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:10,545 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:10,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:56:10,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:10,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:10,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:10,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:10,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:10,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:10,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:10,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:56:10,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:10,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:56:10,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:56:10,548 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/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/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 -> c89976f473b30c374b1d5730d489de69058dd930 [2019-10-22 08:56:10,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:10,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:10,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:10,584 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:10,585 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:10,585 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe005_tso.oepc.i [2019-10-22 08:56:10,631 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/bin/uautomizer/data/15ddf0d3b/582f97dc79ae4f5c8ebd788a196ba738/FLAG79b981392 [2019-10-22 08:56:11,096 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:11,099 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/sv-benchmarks/c/pthread-wmm/safe005_tso.oepc.i [2019-10-22 08:56:11,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/bin/uautomizer/data/15ddf0d3b/582f97dc79ae4f5c8ebd788a196ba738/FLAG79b981392 [2019-10-22 08:56:11,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/bin/uautomizer/data/15ddf0d3b/582f97dc79ae4f5c8ebd788a196ba738 [2019-10-22 08:56:11,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:11,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:11,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:11,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:11,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:11,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:11" (1/1) ... [2019-10-22 08:56:11,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e562b88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11, skipping insertion in model container [2019-10-22 08:56:11,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:11" (1/1) ... [2019-10-22 08:56:11,143 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:11,190 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:11,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:11,564 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:11,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:11,671 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:11,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11 WrapperNode [2019-10-22 08:56:11,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:11,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:11,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:11,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:11,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11" (1/1) ... [2019-10-22 08:56:11,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11" (1/1) ... [2019-10-22 08:56:11,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:11,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:11,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:11,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:11,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11" (1/1) ... [2019-10-22 08:56:11,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11" (1/1) ... [2019-10-22 08:56:11,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11" (1/1) ... [2019-10-22 08:56:11,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11" (1/1) ... [2019-10-22 08:56:11,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11" (1/1) ... [2019-10-22 08:56:11,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11" (1/1) ... [2019-10-22 08:56:11,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11" (1/1) ... [2019-10-22 08:56:11,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:11,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:11,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:11,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:11,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/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 [2019-10-22 08:56:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:56:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:56:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:56:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:56:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:56:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:56:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:56:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:56:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 08:56:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 08:56:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:56:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:11,802 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:56:12,117 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:12,117 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:56:12,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:12 BoogieIcfgContainer [2019-10-22 08:56:12,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:12,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:12,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:12,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:12,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:11" (1/3) ... [2019-10-22 08:56:12,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1093cf9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:12, skipping insertion in model container [2019-10-22 08:56:12,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:11" (2/3) ... [2019-10-22 08:56:12,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1093cf9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:12, skipping insertion in model container [2019-10-22 08:56:12,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:12" (3/3) ... [2019-10-22 08:56:12,127 INFO L109 eAbstractionObserver]: Analyzing ICFG safe005_tso.oepc.i [2019-10-22 08:56:12,153 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,153 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,153 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,153 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,153 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,154 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,154 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,154 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,154 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,154 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,155 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,155 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,155 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,155 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,156 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,156 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,156 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,156 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,156 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,156 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,157 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,157 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,157 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,157 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,157 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,158 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,158 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,159 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,159 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,159 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:12,175 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:56:12,176 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:12,182 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:56:12,190 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:56:12,203 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:12,203 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:56:12,203 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:12,203 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:12,203 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:12,203 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:12,204 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:12,204 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:12,211 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 53 transitions [2019-10-22 08:56:12,336 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2019-10-22 08:56:12,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2019-10-22 08:56:12,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:56:12,351 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:12,352 INFO L380 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] [2019-10-22 08:56:12,354 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:12,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:12,361 INFO L82 PathProgramCache]: Analyzing trace with hash 647017920, now seen corresponding path program 1 times [2019-10-22 08:56:12,366 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:12,366 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839149270] [2019-10-22 08:56:12,367 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:12,367 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:12,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:12,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:12,642 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839149270] [2019-10-22 08:56:12,642 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:12,643 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:56:12,643 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039637904] [2019-10-22 08:56:12,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:12,647 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:12,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:12,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:12,662 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2019-10-22 08:56:12,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:12,765 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2019-10-22 08:56:12,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:56:12,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-10-22 08:56:12,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:12,789 INFO L225 Difference]: With dead ends: 2493 [2019-10-22 08:56:12,790 INFO L226 Difference]: Without dead ends: 1128 [2019-10-22 08:56:12,791 INFO L600 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 [2019-10-22 08:56:12,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-10-22 08:56:12,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2019-10-22 08:56:12,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2019-10-22 08:56:12,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2019-10-22 08:56:12,897 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2019-10-22 08:56:12,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:12,898 INFO L462 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2019-10-22 08:56:12,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:12,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2019-10-22 08:56:12,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:56:12,902 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:12,906 INFO L380 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] [2019-10-22 08:56:12,907 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:12,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:12,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1542553368, now seen corresponding path program 1 times [2019-10-22 08:56:12,907 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:12,907 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029993549] [2019-10-22 08:56:12,908 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:12,908 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:12,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:13,071 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029993549] [2019-10-22 08:56:13,071 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:13,071 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:56:13,072 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999879527] [2019-10-22 08:56:13,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:56:13,073 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:13,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:56:13,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:56:13,074 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2019-10-22 08:56:13,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:13,166 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2019-10-22 08:56:13,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:56:13,167 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 08:56:13,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:13,174 INFO L225 Difference]: With dead ends: 1168 [2019-10-22 08:56:13,174 INFO L226 Difference]: Without dead ends: 1044 [2019-10-22 08:56:13,175 INFO L600 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 [2019-10-22 08:56:13,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2019-10-22 08:56:13,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2019-10-22 08:56:13,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2019-10-22 08:56:13,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2019-10-22 08:56:13,218 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2019-10-22 08:56:13,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:13,219 INFO L462 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2019-10-22 08:56:13,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:56:13,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2019-10-22 08:56:13,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:56:13,221 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:13,221 INFO L380 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] [2019-10-22 08:56:13,222 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:13,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:13,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1986070214, now seen corresponding path program 1 times [2019-10-22 08:56:13,222 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:13,223 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785978372] [2019-10-22 08:56:13,223 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:13,223 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:13,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:13,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:13,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785978372] [2019-10-22 08:56:13,358 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:13,358 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:56:13,358 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688271674] [2019-10-22 08:56:13,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:56:13,359 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:13,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:56:13,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:56:13,360 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2019-10-22 08:56:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:13,453 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2019-10-22 08:56:13,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:13,453 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-10-22 08:56:13,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:13,457 INFO L225 Difference]: With dead ends: 820 [2019-10-22 08:56:13,457 INFO L226 Difference]: Without dead ends: 708 [2019-10-22 08:56:13,458 INFO L600 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 [2019-10-22 08:56:13,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-10-22 08:56:13,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2019-10-22 08:56:13,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-10-22 08:56:13,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2019-10-22 08:56:13,479 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2019-10-22 08:56:13,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:13,480 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2019-10-22 08:56:13,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:56:13,480 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2019-10-22 08:56:13,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:56:13,482 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:13,482 INFO L380 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] [2019-10-22 08:56:13,482 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:13,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:13,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1091006594, now seen corresponding path program 1 times [2019-10-22 08:56:13,483 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:13,483 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448163218] [2019-10-22 08:56:13,483 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:13,483 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:13,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:13,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:13,586 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448163218] [2019-10-22 08:56:13,586 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:13,587 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:56:13,587 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362649767] [2019-10-22 08:56:13,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:56:13,587 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:13,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:56:13,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:56:13,588 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 6 states. [2019-10-22 08:56:13,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:13,668 INFO L93 Difference]: Finished difference Result 1172 states and 3451 transitions. [2019-10-22 08:56:13,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:56:13,669 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-10-22 08:56:13,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:13,672 INFO L225 Difference]: With dead ends: 1172 [2019-10-22 08:56:13,672 INFO L226 Difference]: Without dead ends: 656 [2019-10-22 08:56:13,673 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:13,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2019-10-22 08:56:13,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 656. [2019-10-22 08:56:13,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2019-10-22 08:56:13,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 1931 transitions. [2019-10-22 08:56:13,691 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 1931 transitions. Word has length 33 [2019-10-22 08:56:13,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:13,692 INFO L462 AbstractCegarLoop]: Abstraction has 656 states and 1931 transitions. [2019-10-22 08:56:13,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:56:13,692 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 1931 transitions. [2019-10-22 08:56:13,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:56:13,693 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:13,693 INFO L380 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] [2019-10-22 08:56:13,694 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:13,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:13,694 INFO L82 PathProgramCache]: Analyzing trace with hash 914595188, now seen corresponding path program 2 times [2019-10-22 08:56:13,694 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:13,695 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721561174] [2019-10-22 08:56:13,695 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:13,695 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:13,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:13,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:13,835 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721561174] [2019-10-22 08:56:13,835 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:13,835 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:56:13,836 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935390967] [2019-10-22 08:56:13,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:56:13,836 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:13,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:56:13,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:56:13,836 INFO L87 Difference]: Start difference. First operand 656 states and 1931 transitions. Second operand 7 states. [2019-10-22 08:56:14,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:14,029 INFO L93 Difference]: Finished difference Result 1040 states and 3115 transitions. [2019-10-22 08:56:14,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:56:14,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-10-22 08:56:14,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:14,033 INFO L225 Difference]: With dead ends: 1040 [2019-10-22 08:56:14,033 INFO L226 Difference]: Without dead ends: 576 [2019-10-22 08:56:14,033 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:56:14,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2019-10-22 08:56:14,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2019-10-22 08:56:14,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2019-10-22 08:56:14,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 1711 transitions. [2019-10-22 08:56:14,047 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 1711 transitions. Word has length 33 [2019-10-22 08:56:14,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:14,047 INFO L462 AbstractCegarLoop]: Abstraction has 576 states and 1711 transitions. [2019-10-22 08:56:14,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:56:14,047 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 1711 transitions. [2019-10-22 08:56:14,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:56:14,048 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:14,048 INFO L380 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] [2019-10-22 08:56:14,049 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:14,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:14,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1678497514, now seen corresponding path program 3 times [2019-10-22 08:56:14,049 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:14,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668440763] [2019-10-22 08:56:14,049 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:14,049 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:14,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:14,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668440763] [2019-10-22 08:56:14,138 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:14,139 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:56:14,139 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747587335] [2019-10-22 08:56:14,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:56:14,139 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:14,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:56:14,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:56:14,140 INFO L87 Difference]: Start difference. First operand 576 states and 1711 transitions. Second operand 7 states. [2019-10-22 08:56:14,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:14,220 INFO L93 Difference]: Finished difference Result 448 states and 1295 transitions. [2019-10-22 08:56:14,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:14,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-10-22 08:56:14,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:14,220 INFO L225 Difference]: With dead ends: 448 [2019-10-22 08:56:14,221 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:56:14,221 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:56:14,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:56:14,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:56:14,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:56:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:56:14,221 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-10-22 08:56:14,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:14,222 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:14,222 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:56:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:56:14,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:56:14,225 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:56:14,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:14 BasicIcfg [2019-10-22 08:56:14,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:14,227 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:14,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:14,228 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:14,228 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:12" (3/4) ... [2019-10-22 08:56:14,231 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:56:14,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:56:14,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:56:14,238 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 08:56:14,242 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 08:56:14,242 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:56:14,284 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a0fb0470-062d-4f15-9f9f-64e17d74e4e6/bin/uautomizer/witness.graphml [2019-10-22 08:56:14,284 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:14,286 INFO L168 Benchmark]: Toolchain (without parser) took 3159.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 943.2 MB in the beginning and 1.0 GB in the end (delta: -90.6 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:14,286 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:14,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:14,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:14,290 INFO L168 Benchmark]: Boogie Preprocessor took 22.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:14,291 INFO L168 Benchmark]: RCFGBuilder took 376.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:14,291 INFO L168 Benchmark]: TraceAbstraction took 2105.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:14,291 INFO L168 Benchmark]: Witness Printer took 56.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:14,294 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 545.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 376.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2105.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Witness Printer took 56.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 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 7 procedures, 71 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 359 SDtfs, 403 SDslu, 906 SDs, 0 SdLazy, 107 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred 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, 0.6s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 16014 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...