./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin001_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin001_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/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 1dafa0b9796de635b15c2ebd4dc41906f9445e3f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:33:11,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:33:11,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:33:11,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:33:11,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:33:11,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:33:11,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:33:11,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:33:11,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:33:11,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:33:11,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:33:11,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:33:11,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:33:11,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:33:11,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:33:11,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:33:11,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:33:11,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:33:11,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:33:11,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:33:11,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:33:11,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:33:11,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:33:11,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:33:11,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:33:11,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:33:11,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:33:11,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:33:11,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:33:11,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:33:11,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:33:11,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:33:11,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:33:11,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:33:11,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:33:11,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:33:11,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:33:11,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:33:11,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:33:11,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:33:11,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:33:11,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 11:33:11,565 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:33:11,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:33:11,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:33:11,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:33:11,567 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:33:11,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:33:11,567 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:33:11,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:33:11,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:33:11,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:33:11,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:33:11,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:33:11,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:33:11,569 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:33:11,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:33:11,569 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:33:11,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:33:11,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:33:11,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:33:11,570 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:33:11,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:33:11,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:33:11,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:33:11,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:33:11,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:33:11,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:33:11,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 11:33:11,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:33:11,571 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_1e1e53b8-9f9e-4b03-9144-148db6329565/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 -> 1dafa0b9796de635b15c2ebd4dc41906f9445e3f [2019-11-20 11:33:11,760 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:33:11,775 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:33:11,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:33:11,780 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:33:11,780 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:33:11,782 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin001_pso.opt.i [2019-11-20 11:33:11,853 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/bin/uautomizer/data/3c6180467/c68b08435f304dc1917da063722fccd3/FLAG9e81fdc6a [2019-11-20 11:33:12,365 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:33:12,366 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/sv-benchmarks/c/pthread-wmm/thin001_pso.opt.i [2019-11-20 11:33:12,380 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/bin/uautomizer/data/3c6180467/c68b08435f304dc1917da063722fccd3/FLAG9e81fdc6a [2019-11-20 11:33:12,649 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/bin/uautomizer/data/3c6180467/c68b08435f304dc1917da063722fccd3 [2019-11-20 11:33:12,652 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:33:12,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:33:12,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:33:12,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:33:12,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:33:12,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:33:12" (1/1) ... [2019-11-20 11:33:12,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197d12ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:12, skipping insertion in model container [2019-11-20 11:33:12,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:33:12" (1/1) ... [2019-11-20 11:33:12,669 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:33:12,721 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:33:13,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:33:13,267 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:33:13,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:33:13,458 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:33:13,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:13 WrapperNode [2019-11-20 11:33:13,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:33:13,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:33:13,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:33:13,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:33:13,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:13" (1/1) ... [2019-11-20 11:33:13,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:13" (1/1) ... [2019-11-20 11:33:13,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:33:13,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:33:13,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:33:13,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:33:13,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:13" (1/1) ... [2019-11-20 11:33:13,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:13" (1/1) ... [2019-11-20 11:33:13,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:13" (1/1) ... [2019-11-20 11:33:13,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:13" (1/1) ... [2019-11-20 11:33:13,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:13" (1/1) ... [2019-11-20 11:33:13,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:13" (1/1) ... [2019-11-20 11:33:13,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:13" (1/1) ... [2019-11-20 11:33:13,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:33:13,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:33:13,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:33:13,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:33:13,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/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 [2019-11-20 11:33:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 11:33:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 11:33:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:33:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:33:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 11:33:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 11:33:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 11:33:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 11:33:13,630 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 11:33:13,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 11:33:13,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 11:33:13,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:33:13,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:33:13,634 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 11:33:14,027 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:33:14,027 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 11:33:14,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:33:14 BoogieIcfgContainer [2019-11-20 11:33:14,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:33:14,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:33:14,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:33:14,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:33:14,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:33:12" (1/3) ... [2019-11-20 11:33:14,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d11dbb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:33:14, skipping insertion in model container [2019-11-20 11:33:14,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:13" (2/3) ... [2019-11-20 11:33:14,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d11dbb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:33:14, skipping insertion in model container [2019-11-20 11:33:14,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:33:14" (3/3) ... [2019-11-20 11:33:14,035 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.opt.i [2019-11-20 11:33:14,086 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,087 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,087 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,087 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,087 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,087 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,088 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,088 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,088 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,088 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,088 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,089 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,089 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,089 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,089 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,089 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,089 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,090 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,090 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,090 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,090 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,090 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,091 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,091 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,091 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,091 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,092 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,092 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,092 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,092 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,093 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,093 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,093 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,093 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,093 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,094 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,094 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,094 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,094 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,094 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,095 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,095 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,095 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,095 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,095 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,095 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,096 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,096 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,096 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,096 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,096 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,096 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,097 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,097 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 11:33:14,120 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 11:33:14,120 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:33:14,127 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 11:33:14,138 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 11:33:14,157 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:33:14,158 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 11:33:14,158 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:33:14,158 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:33:14,158 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:33:14,158 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:33:14,158 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:33:14,158 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:33:14,169 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 76 transitions [2019-11-20 11:33:17,812 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31745 states. [2019-11-20 11:33:17,813 INFO L276 IsEmpty]: Start isEmpty. Operand 31745 states. [2019-11-20 11:33:17,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 11:33:17,872 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:33:17,873 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] [2019-11-20 11:33:17,873 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:33:17,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:33:17,879 INFO L82 PathProgramCache]: Analyzing trace with hash 495697940, now seen corresponding path program 1 times [2019-11-20 11:33:17,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:33:17,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800727179] [2019-11-20 11:33:17,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:33:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:33:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:33:18,184 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800727179] [2019-11-20 11:33:18,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:33:18,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 11:33:18,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050326461] [2019-11-20 11:33:18,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 11:33:18,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:33:18,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 11:33:18,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:33:18,209 INFO L87 Difference]: Start difference. First operand 31745 states. Second operand 4 states. [2019-11-20 11:33:18,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:33:18,776 INFO L93 Difference]: Finished difference Result 33014 states and 103294 transitions. [2019-11-20 11:33:18,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:33:18,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-11-20 11:33:18,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:33:18,911 INFO L225 Difference]: With dead ends: 33014 [2019-11-20 11:33:18,911 INFO L226 Difference]: Without dead ends: 14276 [2019-11-20 11:33:18,912 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 [2019-11-20 11:33:19,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14276 states. [2019-11-20 11:33:19,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14276 to 14276. [2019-11-20 11:33:19,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14276 states. [2019-11-20 11:33:19,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14276 states to 14276 states and 44299 transitions. [2019-11-20 11:33:19,587 INFO L78 Accepts]: Start accepts. Automaton has 14276 states and 44299 transitions. Word has length 32 [2019-11-20 11:33:19,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:33:19,589 INFO L462 AbstractCegarLoop]: Abstraction has 14276 states and 44299 transitions. [2019-11-20 11:33:19,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 11:33:19,590 INFO L276 IsEmpty]: Start isEmpty. Operand 14276 states and 44299 transitions. [2019-11-20 11:33:19,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 11:33:19,618 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:33:19,618 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] [2019-11-20 11:33:19,619 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:33:19,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:33:19,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1454698320, now seen corresponding path program 1 times [2019-11-20 11:33:19,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:33:19,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669538235] [2019-11-20 11:33:19,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:33:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:33:19,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:33:19,795 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669538235] [2019-11-20 11:33:19,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:33:19,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 11:33:19,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103557365] [2019-11-20 11:33:19,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:33:19,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:33:19,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:33:19,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:33:19,798 INFO L87 Difference]: Start difference. First operand 14276 states and 44299 transitions. Second operand 5 states. [2019-11-20 11:33:20,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:33:20,064 INFO L93 Difference]: Finished difference Result 14276 states and 42112 transitions. [2019-11-20 11:33:20,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:33:20,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-20 11:33:20,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:33:20,133 INFO L225 Difference]: With dead ends: 14276 [2019-11-20 11:33:20,133 INFO L226 Difference]: Without dead ends: 12575 [2019-11-20 11:33:20,134 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 [2019-11-20 11:33:20,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12575 states. [2019-11-20 11:33:20,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12575 to 12575. [2019-11-20 11:33:20,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12575 states. [2019-11-20 11:33:20,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12575 states to 12575 states and 38062 transitions. [2019-11-20 11:33:20,575 INFO L78 Accepts]: Start accepts. Automaton has 12575 states and 38062 transitions. Word has length 33 [2019-11-20 11:33:20,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:33:20,575 INFO L462 AbstractCegarLoop]: Abstraction has 12575 states and 38062 transitions. [2019-11-20 11:33:20,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:33:20,575 INFO L276 IsEmpty]: Start isEmpty. Operand 12575 states and 38062 transitions. [2019-11-20 11:33:20,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 11:33:20,606 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:33:20,607 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] [2019-11-20 11:33:20,607 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:33:20,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:33:20,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1991812731, now seen corresponding path program 1 times [2019-11-20 11:33:20,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:33:20,608 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56884979] [2019-11-20 11:33:20,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:33:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:33:20,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:33:20,729 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56884979] [2019-11-20 11:33:20,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:33:20,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 11:33:20,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106236638] [2019-11-20 11:33:20,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 11:33:20,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:33:20,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 11:33:20,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:33:20,731 INFO L87 Difference]: Start difference. First operand 12575 states and 38062 transitions. Second operand 6 states. [2019-11-20 11:33:20,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:33:20,939 INFO L93 Difference]: Finished difference Result 8930 states and 24940 transitions. [2019-11-20 11:33:20,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 11:33:20,940 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-11-20 11:33:20,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:33:20,965 INFO L225 Difference]: With dead ends: 8930 [2019-11-20 11:33:20,965 INFO L226 Difference]: Without dead ends: 7472 [2019-11-20 11:33:20,966 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:33:21,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7472 states. [2019-11-20 11:33:21,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7472 to 7472. [2019-11-20 11:33:21,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7472 states. [2019-11-20 11:33:21,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7472 states to 7472 states and 21052 transitions. [2019-11-20 11:33:21,342 INFO L78 Accepts]: Start accepts. Automaton has 7472 states and 21052 transitions. Word has length 34 [2019-11-20 11:33:21,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:33:21,343 INFO L462 AbstractCegarLoop]: Abstraction has 7472 states and 21052 transitions. [2019-11-20 11:33:21,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 11:33:21,343 INFO L276 IsEmpty]: Start isEmpty. Operand 7472 states and 21052 transitions. [2019-11-20 11:33:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 11:33:21,355 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:33:21,356 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, 1] [2019-11-20 11:33:21,356 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:33:21,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:33:21,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1340918215, now seen corresponding path program 1 times [2019-11-20 11:33:21,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:33:21,357 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427037274] [2019-11-20 11:33:21,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:33:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:33:21,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:33:21,530 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427037274] [2019-11-20 11:33:21,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:33:21,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 11:33:21,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402565105] [2019-11-20 11:33:21,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:33:21,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:33:21,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:33:21,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:33:21,531 INFO L87 Difference]: Start difference. First operand 7472 states and 21052 transitions. Second operand 8 states. [2019-11-20 11:33:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:33:21,719 INFO L93 Difference]: Finished difference Result 12089 states and 34012 transitions. [2019-11-20 11:33:21,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 11:33:21,720 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-20 11:33:21,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:33:21,741 INFO L225 Difference]: With dead ends: 12089 [2019-11-20 11:33:21,741 INFO L226 Difference]: Without dead ends: 6680 [2019-11-20 11:33:21,742 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 [2019-11-20 11:33:21,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2019-11-20 11:33:21,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6680. [2019-11-20 11:33:21,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6680 states. [2019-11-20 11:33:21,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 18667 transitions. [2019-11-20 11:33:21,896 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 18667 transitions. Word has length 35 [2019-11-20 11:33:21,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:33:21,897 INFO L462 AbstractCegarLoop]: Abstraction has 6680 states and 18667 transitions. [2019-11-20 11:33:21,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:33:21,897 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 18667 transitions. [2019-11-20 11:33:21,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 11:33:21,905 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:33:21,906 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, 1] [2019-11-20 11:33:21,906 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:33:21,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:33:21,906 INFO L82 PathProgramCache]: Analyzing trace with hash 575656011, now seen corresponding path program 2 times [2019-11-20 11:33:21,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:33:21,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671654073] [2019-11-20 11:33:21,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:33:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:33:22,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:33:22,026 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671654073] [2019-11-20 11:33:22,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:33:22,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 11:33:22,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060299843] [2019-11-20 11:33:22,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:33:22,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:33:22,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:33:22,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:33:22,027 INFO L87 Difference]: Start difference. First operand 6680 states and 18667 transitions. Second operand 8 states. [2019-11-20 11:33:22,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:33:22,216 INFO L93 Difference]: Finished difference Result 11297 states and 31627 transitions. [2019-11-20 11:33:22,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 11:33:22,217 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-20 11:33:22,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:33:22,233 INFO L225 Difference]: With dead ends: 11297 [2019-11-20 11:33:22,233 INFO L226 Difference]: Without dead ends: 6356 [2019-11-20 11:33:22,233 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 [2019-11-20 11:33:22,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2019-11-20 11:33:22,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 6356. [2019-11-20 11:33:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6356 states. [2019-11-20 11:33:22,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6356 states to 6356 states and 17857 transitions. [2019-11-20 11:33:22,377 INFO L78 Accepts]: Start accepts. Automaton has 6356 states and 17857 transitions. Word has length 35 [2019-11-20 11:33:22,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:33:22,377 INFO L462 AbstractCegarLoop]: Abstraction has 6356 states and 17857 transitions. [2019-11-20 11:33:22,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:33:22,378 INFO L276 IsEmpty]: Start isEmpty. Operand 6356 states and 17857 transitions. [2019-11-20 11:33:22,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 11:33:22,385 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:33:22,385 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, 1] [2019-11-20 11:33:22,386 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:33:22,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:33:22,386 INFO L82 PathProgramCache]: Analyzing trace with hash -691415339, now seen corresponding path program 3 times [2019-11-20 11:33:22,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:33:22,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840415868] [2019-11-20 11:33:22,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:33:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:33:22,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:33:22,554 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840415868] [2019-11-20 11:33:22,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:33:22,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 11:33:22,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109059038] [2019-11-20 11:33:22,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 11:33:22,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:33:22,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 11:33:22,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 11:33:22,556 INFO L87 Difference]: Start difference. First operand 6356 states and 17857 transitions. Second operand 8 states. [2019-11-20 11:33:22,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:33:22,697 INFO L93 Difference]: Finished difference Result 4898 states and 13483 transitions. [2019-11-20 11:33:22,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 11:33:22,697 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-20 11:33:22,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:33:22,697 INFO L225 Difference]: With dead ends: 4898 [2019-11-20 11:33:22,698 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 11:33:22,698 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 [2019-11-20 11:33:22,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 11:33:22,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 11:33:22,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 11:33:22,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 11:33:22,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-11-20 11:33:22,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:33:22,699 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:33:22,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 11:33:22,699 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:33:22,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 11:33:22,702 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 11:33:22,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:33:22 BasicIcfg [2019-11-20 11:33:22,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:33:22,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:33:22,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:33:22,704 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:33:22,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:33:14" (3/4) ... [2019-11-20 11:33:22,709 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 11:33:22,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 11:33:22,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 11:33:22,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 11:33:22,733 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 11:33:22,733 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 11:33:22,734 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 11:33:22,789 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1e1e53b8-9f9e-4b03-9144-148db6329565/bin/uautomizer/witness.graphml [2019-11-20 11:33:22,789 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:33:22,791 INFO L168 Benchmark]: Toolchain (without parser) took 10137.97 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 497.5 MB). Free memory was 944.7 MB in the beginning and 944.3 MB in the end (delta: 448.4 kB). Peak memory consumption was 498.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:33:22,794 INFO L168 Benchmark]: CDTParser took 0.33 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. [2019-11-20 11:33:22,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.6 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -222.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-20 11:33:22,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:33:22,796 INFO L168 Benchmark]: Boogie Preprocessor took 45.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:33:22,800 INFO L168 Benchmark]: RCFGBuilder took 473.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-20 11:33:22,801 INFO L168 Benchmark]: TraceAbstraction took 8674.29 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 302.0 MB). Free memory was 1.1 GB in the beginning and 947.6 MB in the end (delta: 192.0 MB). Peak memory consumption was 494.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:33:22,801 INFO L168 Benchmark]: Witness Printer took 85.45 ms. Allocated memory is still 1.5 GB. Free memory was 947.6 MB in the beginning and 944.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:33:22,803 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 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 805.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.6 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -222.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 473.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8674.29 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 302.0 MB). Free memory was 1.1 GB in the beginning and 947.6 MB in the end (delta: 192.0 MB). Peak memory consumption was 494.0 MB. Max. memory is 11.5 GB. * Witness Printer took 85.45 ms. Allocated memory is still 1.5 GB. Free memory was 947.6 MB in the beginning and 944.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 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, 91 locations, 1 error locations. Result: SAFE, OverallTime: 8.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 512 SDtfs, 968 SDslu, 1374 SDs, 0 SdLazy, 210 SolverSat, 122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31745occurred 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: 1.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 21102 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...