./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe033_tso.oepc.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_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe033_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/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 14d1544190100268c5c0ac7bd19a151fe7c692d5 ................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:40:59,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:40:59,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:41:00,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:41:00,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:41:00,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:41:00,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:41:00,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:41:00,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:41:00,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:41:00,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:41:00,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:41:00,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:41:00,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:41:00,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:41:00,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:41:00,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:41:00,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:41:00,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:41:00,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:41:00,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:41:00,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:41:00,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:41:00,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:41:00,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:41:00,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:41:00,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:41:00,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:41:00,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:41:00,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:41:00,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:41:00,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:41:00,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:41:00,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:41:00,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:41:00,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:41:00,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:41:00,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:41:00,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:41:00,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:41:00,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:41:00,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 01:41:00,111 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:41:00,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:41:00,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:41:00,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:41:00,126 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:41:00,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:41:00,127 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:41:00,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:41:00,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:41:00,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:41:00,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:41:00,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:41:00,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:41:00,129 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:41:00,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:41:00,129 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:41:00,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:41:00,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:41:00,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:41:00,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:41:00,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:41:00,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:41:00,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:41:00,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:41:00,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:41:00,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:41:00,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:41:00,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:41:00,133 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_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/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 -> 14d1544190100268c5c0ac7bd19a151fe7c692d5 [2019-11-20 01:41:00,345 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:41:00,358 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:41:00,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:41:00,363 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:41:00,364 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:41:00,365 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe033_tso.oepc.i [2019-11-20 01:41:00,438 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/bin/uautomizer/data/ebd38f85f/e761eabd93e84fa1b210f5e189509706/FLAGdec5b6064 [2019-11-20 01:41:00,936 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:41:00,937 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/sv-benchmarks/c/pthread-wmm/safe033_tso.oepc.i [2019-11-20 01:41:00,957 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/bin/uautomizer/data/ebd38f85f/e761eabd93e84fa1b210f5e189509706/FLAGdec5b6064 [2019-11-20 01:41:01,208 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/bin/uautomizer/data/ebd38f85f/e761eabd93e84fa1b210f5e189509706 [2019-11-20 01:41:01,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:41:01,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:41:01,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:41:01,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:41:01,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:41:01,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:41:01" (1/1) ... [2019-11-20 01:41:01,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460f07c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:01, skipping insertion in model container [2019-11-20 01:41:01,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:41:01" (1/1) ... [2019-11-20 01:41:01,230 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:41:01,288 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:41:01,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:41:01,876 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:41:01,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:41:02,060 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:41:02,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:02 WrapperNode [2019-11-20 01:41:02,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:41:02,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:41:02,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:41:02,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:41:02,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:02" (1/1) ... [2019-11-20 01:41:02,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:02" (1/1) ... [2019-11-20 01:41:02,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:41:02,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:41:02,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:41:02,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:41:02,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:02" (1/1) ... [2019-11-20 01:41:02,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:02" (1/1) ... [2019-11-20 01:41:02,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:02" (1/1) ... [2019-11-20 01:41:02,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:02" (1/1) ... [2019-11-20 01:41:02,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:02" (1/1) ... [2019-11-20 01:41:02,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:02" (1/1) ... [2019-11-20 01:41:02,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:02" (1/1) ... [2019-11-20 01:41:02,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:41:02,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:41:02,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:41:02,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:41:02,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/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 01:41:02,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 01:41:02,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 01:41:02,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:41:02,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:41:02,223 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 01:41:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 01:41:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 01:41:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 01:41:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 01:41:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:41:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:41:02,227 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 01:41:02,709 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:41:02,709 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 01:41:02,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:41:02 BoogieIcfgContainer [2019-11-20 01:41:02,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:41:02,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:41:02,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:41:02,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:41:02,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:41:01" (1/3) ... [2019-11-20 01:41:02,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed3ecb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:41:02, skipping insertion in model container [2019-11-20 01:41:02,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:02" (2/3) ... [2019-11-20 01:41:02,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed3ecb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:41:02, skipping insertion in model container [2019-11-20 01:41:02,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:41:02" (3/3) ... [2019-11-20 01:41:02,723 INFO L109 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2019-11-20 01:41:02,798 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,799 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,800 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,800 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,801 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,801 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,802 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,802 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,803 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,803 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,804 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,804 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,805 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,805 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,805 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,806 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,806 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,807 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,807 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,808 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,808 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,808 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,809 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,809 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,810 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,811 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,811 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,811 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,812 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,812 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,813 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,813 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,814 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,814 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,815 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,815 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:41:02,837 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 01:41:02,838 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:41:02,846 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 01:41:02,859 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 01:41:02,882 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:41:02,882 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:41:02,882 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:41:02,882 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:41:02,883 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:41:02,883 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:41:02,883 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:41:02,883 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:41:02,895 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 56 transitions [2019-11-20 01:41:03,126 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2366 states. [2019-11-20 01:41:03,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states. [2019-11-20 01:41:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 01:41:03,164 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:41:03,165 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] [2019-11-20 01:41:03,165 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:41:03,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:41:03,173 INFO L82 PathProgramCache]: Analyzing trace with hash -230559477, now seen corresponding path program 1 times [2019-11-20 01:41:03,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:41:03,184 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644906238] [2019-11-20 01:41:03,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:41:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:41:03,536 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 01:41:03,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644906238] [2019-11-20 01:41:03,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:41:03,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 01:41:03,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777262808] [2019-11-20 01:41:03,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 01:41:03,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:41:03,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 01:41:03,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 01:41:03,567 INFO L87 Difference]: Start difference. First operand 2366 states. Second operand 4 states. [2019-11-20 01:41:03,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:41:03,726 INFO L93 Difference]: Finished difference Result 2375 states and 5560 transitions. [2019-11-20 01:41:03,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 01:41:03,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-11-20 01:41:03,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:41:03,761 INFO L225 Difference]: With dead ends: 2375 [2019-11-20 01:41:03,761 INFO L226 Difference]: Without dead ends: 1151 [2019-11-20 01:41:03,763 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 01:41:03,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2019-11-20 01:41:03,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1151. [2019-11-20 01:41:03,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1151 states. [2019-11-20 01:41:03,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 2671 transitions. [2019-11-20 01:41:03,934 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 2671 transitions. Word has length 25 [2019-11-20 01:41:03,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:41:03,938 INFO L462 AbstractCegarLoop]: Abstraction has 1151 states and 2671 transitions. [2019-11-20 01:41:03,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 01:41:03,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 2671 transitions. [2019-11-20 01:41:03,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 01:41:03,942 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:41:03,943 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] [2019-11-20 01:41:03,944 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:41:03,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:41:03,945 INFO L82 PathProgramCache]: Analyzing trace with hash -797607807, now seen corresponding path program 1 times [2019-11-20 01:41:03,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:41:03,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952570282] [2019-11-20 01:41:03,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:41:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:41:04,120 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 01:41:04,121 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952570282] [2019-11-20 01:41:04,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:41:04,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:41:04,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105369299] [2019-11-20 01:41:04,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:41:04,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:41:04,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:41:04,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:41:04,125 INFO L87 Difference]: Start difference. First operand 1151 states and 2671 transitions. Second operand 5 states. [2019-11-20 01:41:04,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:41:04,254 INFO L93 Difference]: Finished difference Result 908 states and 1915 transitions. [2019-11-20 01:41:04,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 01:41:04,257 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-20 01:41:04,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:41:04,272 INFO L225 Difference]: With dead ends: 908 [2019-11-20 01:41:04,273 INFO L226 Difference]: Without dead ends: 773 [2019-11-20 01:41:04,274 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 01:41:04,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2019-11-20 01:41:04,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 773. [2019-11-20 01:41:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 773 states. [2019-11-20 01:41:04,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1663 transitions. [2019-11-20 01:41:04,310 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1663 transitions. Word has length 26 [2019-11-20 01:41:04,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:41:04,310 INFO L462 AbstractCegarLoop]: Abstraction has 773 states and 1663 transitions. [2019-11-20 01:41:04,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:41:04,311 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1663 transitions. [2019-11-20 01:41:04,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 01:41:04,314 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:41:04,314 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] [2019-11-20 01:41:04,314 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:41:04,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:41:04,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1668726954, now seen corresponding path program 1 times [2019-11-20 01:41:04,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:41:04,316 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590852801] [2019-11-20 01:41:04,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:41:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:41:04,538 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 01:41:04,539 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590852801] [2019-11-20 01:41:04,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:41:04,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 01:41:04,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863288490] [2019-11-20 01:41:04,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 01:41:04,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:41:04,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 01:41:04,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 01:41:04,542 INFO L87 Difference]: Start difference. First operand 773 states and 1663 transitions. Second operand 6 states. [2019-11-20 01:41:04,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:41:04,704 INFO L93 Difference]: Finished difference Result 1259 states and 2716 transitions. [2019-11-20 01:41:04,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 01:41:04,705 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-11-20 01:41:04,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:41:04,711 INFO L225 Difference]: With dead ends: 1259 [2019-11-20 01:41:04,711 INFO L226 Difference]: Without dead ends: 710 [2019-11-20 01:41:04,712 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 01:41:04,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2019-11-20 01:41:04,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2019-11-20 01:41:04,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 710 states. [2019-11-20 01:41:04,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1519 transitions. [2019-11-20 01:41:04,744 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1519 transitions. Word has length 27 [2019-11-20 01:41:04,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:41:04,745 INFO L462 AbstractCegarLoop]: Abstraction has 710 states and 1519 transitions. [2019-11-20 01:41:04,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 01:41:04,746 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1519 transitions. [2019-11-20 01:41:04,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 01:41:04,748 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:41:04,749 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] [2019-11-20 01:41:04,749 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:41:04,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:41:04,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1782867924, now seen corresponding path program 2 times [2019-11-20 01:41:04,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:41:04,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887677908] [2019-11-20 01:41:04,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:41:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:41:04,912 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 01:41:04,912 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887677908] [2019-11-20 01:41:04,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:41:04,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 01:41:04,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472601266] [2019-11-20 01:41:04,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 01:41:04,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:41:04,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 01:41:04,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 01:41:04,915 INFO L87 Difference]: Start difference. First operand 710 states and 1519 transitions. Second operand 7 states. [2019-11-20 01:41:05,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:41:05,058 INFO L93 Difference]: Finished difference Result 548 states and 1141 transitions. [2019-11-20 01:41:05,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 01:41:05,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-11-20 01:41:05,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:41:05,059 INFO L225 Difference]: With dead ends: 548 [2019-11-20 01:41:05,060 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 01:41:05,060 INFO L630 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 [2019-11-20 01:41:05,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 01:41:05,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 01:41:05,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 01:41:05,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 01:41:05,062 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-11-20 01:41:05,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:41:05,062 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:41:05,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 01:41:05,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 01:41:05,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 01:41:05,067 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 01:41:05,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:41:05 BasicIcfg [2019-11-20 01:41:05,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:41:05,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:41:05,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:41:05,071 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:41:05,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:41:02" (3/4) ... [2019-11-20 01:41:05,075 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 01:41:05,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 01:41:05,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 01:41:05,091 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-20 01:41:05,092 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 01:41:05,092 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 01:41:05,159 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0384712b-3df6-4f42-a4de-cf9fa2cd5d85/bin/uautomizer/witness.graphml [2019-11-20 01:41:05,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:41:05,163 INFO L168 Benchmark]: Toolchain (without parser) took 3949.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 946.1 MB in the beginning and 934.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 191.6 MB. Max. memory is 11.5 GB. [2019-11-20 01:41:05,163 INFO L168 Benchmark]: CDTParser took 0.31 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 01:41:05,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -204.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:41:05,165 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.24 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 01:41:05,165 INFO L168 Benchmark]: Boogie Preprocessor took 30.37 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 01:41:05,166 INFO L168 Benchmark]: RCFGBuilder took 558.72 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-11-20 01:41:05,166 INFO L168 Benchmark]: TraceAbstraction took 2357.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 934.8 MB in the end (delta: 188.9 MB). Peak memory consumption was 188.9 MB. Max. memory is 11.5 GB. [2019-11-20 01:41:05,167 INFO L168 Benchmark]: Witness Printer took 90.07 ms. Allocated memory is still 1.2 GB. Free memory is still 934.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:41:05,178 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 848.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -204.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.24 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 30.37 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 558.72 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2357.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 934.8 MB in the end (delta: 188.9 MB). Peak memory consumption was 188.9 MB. Max. memory is 11.5 GB. * Witness Printer took 90.07 ms. Allocated memory is still 1.2 GB. Free memory is still 934.8 MB. There was no memory consumed. 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 9 procedures, 66 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 258 SDtfs, 256 SDslu, 591 SDs, 0 SdLazy, 83 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2366occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 6487 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...