./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe006_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_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe006_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/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 1c3de4e133879009de4df67b5254da93474effda ................................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:45:53,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:45:53,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:45:53,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:45:53,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:45:53,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:45:53,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:45:53,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:45:53,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:45:53,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:45:53,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:45:53,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:45:53,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:45:53,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:45:53,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:45:53,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:45:53,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:45:53,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:45:53,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:45:53,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:45:53,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:45:53,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:45:53,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:45:53,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:45:53,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:45:53,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:45:53,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:45:53,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:45:53,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:45:53,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:45:53,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:45:53,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:45:53,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:45:53,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:45:53,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:45:53,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:45:53,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:45:53,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:45:53,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:45:53,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:45:53,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:45:53,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 02:45:53,119 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:45:53,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:45:53,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:45:53,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:45:53,121 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:45:53,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:45:53,121 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:45:53,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:45:53,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:45:53,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:45:53,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 02:45:53,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:45:53,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 02:45:53,126 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:45:53,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:45:53,126 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:45:53,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 02:45:53,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:45:53,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:45:53,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:45:53,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:45:53,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:45:53,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:45:53,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:45:53,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 02:45:53,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:45:53,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 02:45:53,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 02:45:53,133 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_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/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 -> 1c3de4e133879009de4df67b5254da93474effda [2019-11-20 02:45:53,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:45:53,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:45:53,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:45:53,282 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:45:53,282 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:45:53,283 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe006_tso.oepc.i [2019-11-20 02:45:53,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/bin/uautomizer/data/79c61ff89/d6bcb5bcec4746a4a8400bb2a133fcbc/FLAG4790f8873 [2019-11-20 02:45:53,831 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:45:53,832 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/sv-benchmarks/c/pthread-wmm/safe006_tso.oepc.i [2019-11-20 02:45:53,850 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/bin/uautomizer/data/79c61ff89/d6bcb5bcec4746a4a8400bb2a133fcbc/FLAG4790f8873 [2019-11-20 02:45:54,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/bin/uautomizer/data/79c61ff89/d6bcb5bcec4746a4a8400bb2a133fcbc [2019-11-20 02:45:54,352 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:45:54,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:45:54,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:45:54,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:45:54,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:45:54,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:45:54" (1/1) ... [2019-11-20 02:45:54,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bbded58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54, skipping insertion in model container [2019-11-20 02:45:54,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:45:54" (1/1) ... [2019-11-20 02:45:54,363 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:45:54,406 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:45:54,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:45:54,787 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:45:54,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:45:54,907 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:45:54,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54 WrapperNode [2019-11-20 02:45:54,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:45:54,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:45:54,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:45:54,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:45:54,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54" (1/1) ... [2019-11-20 02:45:54,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54" (1/1) ... [2019-11-20 02:45:54,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:45:54,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:45:54,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:45:54,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:45:54,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54" (1/1) ... [2019-11-20 02:45:54,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54" (1/1) ... [2019-11-20 02:45:54,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54" (1/1) ... [2019-11-20 02:45:54,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54" (1/1) ... [2019-11-20 02:45:54,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54" (1/1) ... [2019-11-20 02:45:54,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54" (1/1) ... [2019-11-20 02:45:54,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54" (1/1) ... [2019-11-20 02:45:54,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:45:54,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:45:54,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:45:54,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:45:54,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/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 02:45:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 02:45:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 02:45:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 02:45:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 02:45:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 02:45:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 02:45:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 02:45:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 02:45:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 02:45:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:45:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:45:55,064 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 02:45:55,402 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:45:55,402 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 02:45:55,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:45:55 BoogieIcfgContainer [2019-11-20 02:45:55,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:45:55,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:45:55,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:45:55,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:45:55,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:45:54" (1/3) ... [2019-11-20 02:45:55,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a62dbe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:45:55, skipping insertion in model container [2019-11-20 02:45:55,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:45:54" (2/3) ... [2019-11-20 02:45:55,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a62dbe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:45:55, skipping insertion in model container [2019-11-20 02:45:55,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:45:55" (3/3) ... [2019-11-20 02:45:55,409 INFO L109 eAbstractionObserver]: Analyzing ICFG safe006_tso.oepc.i [2019-11-20 02:45:55,445 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,445 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,445 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,445 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,446 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,446 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,446 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,447 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,447 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,447 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,447 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,447 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,448 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,448 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,448 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,448 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,449 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,449 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,449 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,450 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,450 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,450 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,450 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,451 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,451 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,451 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,451 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,451 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,452 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,452 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,452 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,452 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,453 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,453 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,453 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,453 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:45:55,486 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 02:45:55,486 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:45:55,492 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 02:45:55,501 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 02:45:55,519 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:45:55,519 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 02:45:55,519 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:45:55,519 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:45:55,519 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:45:55,519 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:45:55,520 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:45:55,520 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:45:55,529 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 57 transitions [2019-11-20 02:45:55,741 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2367 states. [2019-11-20 02:45:55,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states. [2019-11-20 02:45:55,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 02:45:55,776 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:45:55,776 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 02:45:55,777 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:45:55,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:45:55,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1332459086, now seen corresponding path program 1 times [2019-11-20 02:45:55,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:45:55,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551519288] [2019-11-20 02:45:55,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:45:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:56,055 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 02:45:56,056 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551519288] [2019-11-20 02:45:56,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:45:56,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 02:45:56,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352518396] [2019-11-20 02:45:56,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 02:45:56,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:45:56,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:45:56,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:45:56,074 INFO L87 Difference]: Start difference. First operand 2367 states. Second operand 4 states. [2019-11-20 02:45:56,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:45:56,198 INFO L93 Difference]: Finished difference Result 2376 states and 5561 transitions. [2019-11-20 02:45:56,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 02:45:56,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2019-11-20 02:45:56,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:45:56,234 INFO L225 Difference]: With dead ends: 2376 [2019-11-20 02:45:56,234 INFO L226 Difference]: Without dead ends: 1152 [2019-11-20 02:45:56,236 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 02:45:56,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2019-11-20 02:45:56,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2019-11-20 02:45:56,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2019-11-20 02:45:56,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 2672 transitions. [2019-11-20 02:45:56,367 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 2672 transitions. Word has length 26 [2019-11-20 02:45:56,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:45:56,368 INFO L462 AbstractCegarLoop]: Abstraction has 1152 states and 2672 transitions. [2019-11-20 02:45:56,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 02:45:56,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 2672 transitions. [2019-11-20 02:45:56,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 02:45:56,371 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:45:56,371 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 02:45:56,372 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:45:56,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:45:56,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1675336041, now seen corresponding path program 1 times [2019-11-20 02:45:56,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:45:56,373 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388054922] [2019-11-20 02:45:56,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:45:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:56,492 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 02:45:56,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388054922] [2019-11-20 02:45:56,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:45:56,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 02:45:56,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095371800] [2019-11-20 02:45:56,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 02:45:56,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:45:56,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 02:45:56,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 02:45:56,495 INFO L87 Difference]: Start difference. First operand 1152 states and 2672 transitions. Second operand 5 states. [2019-11-20 02:45:56,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:45:56,624 INFO L93 Difference]: Finished difference Result 909 states and 1916 transitions. [2019-11-20 02:45:56,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 02:45:56,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-20 02:45:56,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:45:56,637 INFO L225 Difference]: With dead ends: 909 [2019-11-20 02:45:56,638 INFO L226 Difference]: Without dead ends: 774 [2019-11-20 02:45:56,639 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 02:45:56,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2019-11-20 02:45:56,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 774. [2019-11-20 02:45:56,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 774 states. [2019-11-20 02:45:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1664 transitions. [2019-11-20 02:45:56,673 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1664 transitions. Word has length 27 [2019-11-20 02:45:56,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:45:56,674 INFO L462 AbstractCegarLoop]: Abstraction has 774 states and 1664 transitions. [2019-11-20 02:45:56,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 02:45:56,674 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1664 transitions. [2019-11-20 02:45:56,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 02:45:56,676 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:45:56,677 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] [2019-11-20 02:45:56,677 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:45:56,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:45:56,677 INFO L82 PathProgramCache]: Analyzing trace with hash -800055715, now seen corresponding path program 1 times [2019-11-20 02:45:56,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:45:56,678 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834180724] [2019-11-20 02:45:56,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:45:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:56,841 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 02:45:56,841 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834180724] [2019-11-20 02:45:56,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:45:56,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 02:45:56,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427681242] [2019-11-20 02:45:56,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 02:45:56,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:45:56,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 02:45:56,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 02:45:56,843 INFO L87 Difference]: Start difference. First operand 774 states and 1664 transitions. Second operand 7 states. [2019-11-20 02:45:57,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:45:57,055 INFO L93 Difference]: Finished difference Result 1260 states and 2717 transitions. [2019-11-20 02:45:57,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 02:45:57,056 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-20 02:45:57,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:45:57,061 INFO L225 Difference]: With dead ends: 1260 [2019-11-20 02:45:57,061 INFO L226 Difference]: Without dead ends: 747 [2019-11-20 02:45:57,062 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-20 02:45:57,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2019-11-20 02:45:57,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 747. [2019-11-20 02:45:57,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2019-11-20 02:45:57,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1610 transitions. [2019-11-20 02:45:57,087 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1610 transitions. Word has length 28 [2019-11-20 02:45:57,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:45:57,088 INFO L462 AbstractCegarLoop]: Abstraction has 747 states and 1610 transitions. [2019-11-20 02:45:57,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 02:45:57,088 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1610 transitions. [2019-11-20 02:45:57,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 02:45:57,090 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:45:57,090 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] [2019-11-20 02:45:57,091 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:45:57,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:45:57,091 INFO L82 PathProgramCache]: Analyzing trace with hash 914308703, now seen corresponding path program 2 times [2019-11-20 02:45:57,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:45:57,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527870563] [2019-11-20 02:45:57,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:45:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:45:57,299 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 02:45:57,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527870563] [2019-11-20 02:45:57,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:45:57,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 02:45:57,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406311811] [2019-11-20 02:45:57,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 02:45:57,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:45:57,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 02:45:57,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 02:45:57,301 INFO L87 Difference]: Start difference. First operand 747 states and 1610 transitions. Second operand 7 states. [2019-11-20 02:45:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:45:57,429 INFO L93 Difference]: Finished difference Result 585 states and 1232 transitions. [2019-11-20 02:45:57,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 02:45:57,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-20 02:45:57,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:45:57,430 INFO L225 Difference]: With dead ends: 585 [2019-11-20 02:45:57,430 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 02:45:57,431 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-20 02:45:57,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 02:45:57,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 02:45:57,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 02:45:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 02:45:57,432 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-11-20 02:45:57,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:45:57,432 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:45:57,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 02:45:57,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:45:57,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 02:45:57,437 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 02:45:57,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 02:45:57 BasicIcfg [2019-11-20 02:45:57,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 02:45:57,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:45:57,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:45:57,442 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:45:57,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:45:55" (3/4) ... [2019-11-20 02:45:57,447 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 02:45:57,454 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 02:45:57,454 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 02:45:57,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-20 02:45:57,482 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 02:45:57,482 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 02:45:57,533 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_aeebdf80-14a3-4d1e-8d61-f24eb961b75c/bin/uautomizer/witness.graphml [2019-11-20 02:45:57,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:45:57,536 INFO L168 Benchmark]: Toolchain (without parser) took 3182.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 938.1 MB in the beginning and 853.1 MB in the end (delta: 84.9 MB). Peak memory consumption was 192.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:45:57,536 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:45:57,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 554.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -131.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 02:45:57,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:45:57,538 INFO L168 Benchmark]: Boogie Preprocessor took 21.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:45:57,538 INFO L168 Benchmark]: RCFGBuilder took 432.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:45:57,539 INFO L168 Benchmark]: TraceAbstraction took 2037.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 853.1 MB in the end (delta: 187.2 MB). Peak memory consumption was 187.2 MB. Max. memory is 11.5 GB. [2019-11-20 02:45:57,539 INFO L168 Benchmark]: Witness Printer took 91.84 ms. Allocated memory is still 1.1 GB. Free memory is still 853.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:45:57,545 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 554.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -131.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 432.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2037.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 853.1 MB in the end (delta: 187.2 MB). Peak memory consumption was 187.2 MB. Max. memory is 11.5 GB. * Witness Printer took 91.84 ms. Allocated memory is still 1.1 GB. Free memory is still 853.1 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, 67 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 244 SDtfs, 316 SDslu, 609 SDs, 0 SdLazy, 104 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2367occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 8139 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...