./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe034_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe034_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8c69bbcfd18e5b8c38f395482481d046ecc4f930 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 18:33:50,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:33:50,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:33:50,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:33:50,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:33:50,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:33:50,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:33:50,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:33:50,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:33:50,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:33:50,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:33:50,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:33:50,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:33:50,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:33:50,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:33:50,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:33:50,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:33:50,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:33:50,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:33:50,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:33:50,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:33:50,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:33:50,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:33:50,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:33:50,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:33:50,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:33:50,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:33:50,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:33:50,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:33:50,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:33:50,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:33:50,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:33:50,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:33:50,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:33:50,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:33:50,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:33:50,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:33:50,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:33:50,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:33:50,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:33:50,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:33:50,962 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:33:50,984 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:33:50,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:33:50,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:33:50,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:33:50,986 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:33:50,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:33:50,987 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:33:50,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:33:50,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:33:50,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:33:50,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:33:50,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:33:50,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:33:50,988 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:33:50,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:33:50,993 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:33:50,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:33:50,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:33:50,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:33:50,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:33:50,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:33:50,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:33:50,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:33:50,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:33:50,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:33:50,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:33:50,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:33:50,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:33:50,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:33:50,997 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8c69bbcfd18e5b8c38f395482481d046ecc4f930 [2019-11-28 18:33:51,293 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:33:51,307 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:33:51,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:33:51,313 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:33:51,315 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:33:51,316 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe034_tso.oepc.i [2019-11-28 18:33:51,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2007c9d/c95526e19866413e8e4066d9287febf7/FLAG9fa858c71 [2019-11-28 18:33:51,941 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:33:51,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe034_tso.oepc.i [2019-11-28 18:33:51,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2007c9d/c95526e19866413e8e4066d9287febf7/FLAG9fa858c71 [2019-11-28 18:33:52,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2007c9d/c95526e19866413e8e4066d9287febf7 [2019-11-28 18:33:52,242 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:33:52,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:33:52,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:33:52,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:33:52,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:33:52,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:33:52" (1/1) ... [2019-11-28 18:33:52,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760d99d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52, skipping insertion in model container [2019-11-28 18:33:52,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:33:52" (1/1) ... [2019-11-28 18:33:52,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:33:52,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:33:52,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:33:52,814 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:33:52,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:33:52,966 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:33:52,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52 WrapperNode [2019-11-28 18:33:52,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:33:52,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:33:52,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:33:52,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:33:52,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52" (1/1) ... [2019-11-28 18:33:52,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52" (1/1) ... [2019-11-28 18:33:53,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:33:53,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:33:53,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:33:53,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:33:53,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52" (1/1) ... [2019-11-28 18:33:53,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52" (1/1) ... [2019-11-28 18:33:53,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52" (1/1) ... [2019-11-28 18:33:53,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52" (1/1) ... [2019-11-28 18:33:53,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52" (1/1) ... [2019-11-28 18:33:53,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52" (1/1) ... [2019-11-28 18:33:53,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52" (1/1) ... [2019-11-28 18:33:53,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:33:53,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:33:53,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:33:53,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:33:53,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 18:33:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:33:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:33:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:33:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:33:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:33:53,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:33:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:33:53,114 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:33:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:33:53,115 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:33:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:33:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:33:53,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:33:53,117 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 18:33:53,486 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:33:53,486 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:33:53,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:33:53 BoogieIcfgContainer [2019-11-28 18:33:53,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:33:53,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:33:53,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:33:53,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:33:53,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:33:52" (1/3) ... [2019-11-28 18:33:53,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26da43d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:33:53, skipping insertion in model container [2019-11-28 18:33:53,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:33:52" (2/3) ... [2019-11-28 18:33:53,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26da43d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:33:53, skipping insertion in model container [2019-11-28 18:33:53,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:33:53" (3/3) ... [2019-11-28 18:33:53,495 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2019-11-28 18:33:53,503 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:33:53,504 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:33:53,511 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:33:53,512 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:33:53,540 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,540 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,540 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,541 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,541 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,541 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,542 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,542 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,542 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,542 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,543 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,543 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,543 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,543 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,543 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,544 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,544 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,544 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:33:53,573 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:33:53,594 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:33:53,595 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:33:53,595 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:33:53,595 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:33:53,596 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:33:53,596 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:33:53,596 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:33:53,596 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:33:53,610 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-11-28 18:33:53,612 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:33:53,654 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:33:53,655 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:33:53,662 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:33:53,666 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:33:53,685 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:33:53,686 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:33:53,688 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:33:53,690 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:33:53,691 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:33:54,981 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-11-28 18:33:55,117 INFO L206 etLargeBlockEncoding]: Checked pairs total: 452 [2019-11-28 18:33:55,117 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-11-28 18:33:55,120 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-11-28 18:33:55,133 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-11-28 18:33:55,136 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-11-28 18:33:55,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:33:55,151 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:33:55,152 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:33:55,153 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:33:55,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:33:55,160 INFO L82 PathProgramCache]: Analyzing trace with hash -225004372, now seen corresponding path program 1 times [2019-11-28 18:33:55,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:33:55,170 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399279740] [2019-11-28 18:33:55,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:33:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:33:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:33:55,490 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399279740] [2019-11-28 18:33:55,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:33:55,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:33:55,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793790672] [2019-11-28 18:33:55,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:33:55,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:33:55,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:33:55,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:33:55,520 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 4 states. [2019-11-28 18:33:55,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:33:55,595 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2019-11-28 18:33:55,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:33:55,599 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 18:33:55,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:33:55,612 INFO L225 Difference]: With dead ends: 51 [2019-11-28 18:33:55,613 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 18:33:55,616 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:33:55,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 18:33:55,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-28 18:33:55,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 18:33:55,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-11-28 18:33:55,649 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-11-28 18:33:55,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:33:55,650 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-11-28 18:33:55,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:33:55,650 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-11-28 18:33:55,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:33:55,652 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:33:55,652 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:33:55,652 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:33:55,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:33:55,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1613964581, now seen corresponding path program 1 times [2019-11-28 18:33:55,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:33:55,653 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23960664] [2019-11-28 18:33:55,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:33:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:33:55,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:33:55,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23960664] [2019-11-28 18:33:55,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:33:55,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:33:55,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121445915] [2019-11-28 18:33:55,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:33:55,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:33:55,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:33:55,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:33:55,797 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 5 states. [2019-11-28 18:33:55,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:33:55,865 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-11-28 18:33:55,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:33:55,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 18:33:55,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:33:55,867 INFO L225 Difference]: With dead ends: 37 [2019-11-28 18:33:55,867 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 18:33:55,868 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-28 18:33:55,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 18:33:55,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-28 18:33:55,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-28 18:33:55,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-11-28 18:33:55,875 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-11-28 18:33:55,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:33:55,875 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-11-28 18:33:55,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:33:55,876 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-11-28 18:33:55,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:33:55,877 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:33:55,877 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:33:55,877 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:33:55,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:33:55,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1506645329, now seen corresponding path program 1 times [2019-11-28 18:33:55,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:33:55,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180510339] [2019-11-28 18:33:55,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:33:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:33:55,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:33:55,985 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180510339] [2019-11-28 18:33:55,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:33:55,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 18:33:55,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64908788] [2019-11-28 18:33:55,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 18:33:55,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:33:55,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 18:33:55,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:33:55,988 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 6 states. [2019-11-28 18:33:56,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:33:56,083 INFO L93 Difference]: Finished difference Result 28 states and 44 transitions. [2019-11-28 18:33:56,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 18:33:56,084 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-28 18:33:56,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:33:56,084 INFO L225 Difference]: With dead ends: 28 [2019-11-28 18:33:56,085 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 18:33:56,085 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-28 18:33:56,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 18:33:56,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 18:33:56,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 18:33:56,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 38 transitions. [2019-11-28 18:33:56,089 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 38 transitions. Word has length 10 [2019-11-28 18:33:56,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:33:56,090 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 38 transitions. [2019-11-28 18:33:56,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 18:33:56,090 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-11-28 18:33:56,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:33:56,091 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:33:56,091 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:33:56,091 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:33:56,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:33:56,092 INFO L82 PathProgramCache]: Analyzing trace with hash 538686620, now seen corresponding path program 1 times [2019-11-28 18:33:56,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:33:56,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650240614] [2019-11-28 18:33:56,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:33:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:33:56,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:33:56,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650240614] [2019-11-28 18:33:56,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:33:56,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:33:56,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233193162] [2019-11-28 18:33:56,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:33:56,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:33:56,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:33:56,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:33:56,217 INFO L87 Difference]: Start difference. First operand 24 states and 38 transitions. Second operand 4 states. [2019-11-28 18:33:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:33:56,255 INFO L93 Difference]: Finished difference Result 31 states and 44 transitions. [2019-11-28 18:33:56,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:33:56,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:33:56,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:33:56,257 INFO L225 Difference]: With dead ends: 31 [2019-11-28 18:33:56,257 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 18:33:56,258 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:33:56,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 18:33:56,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-28 18:33:56,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 18:33:56,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-11-28 18:33:56,263 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-11-28 18:33:56,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:33:56,264 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-28 18:33:56,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:33:56,264 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-11-28 18:33:56,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:33:56,266 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:33:56,266 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:33:56,267 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:33:56,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:33:56,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1398224240, now seen corresponding path program 2 times [2019-11-28 18:33:56,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:33:56,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621950159] [2019-11-28 18:33:56,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:33:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:33:56,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:33:56,377 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621950159] [2019-11-28 18:33:56,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:33:56,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:33:56,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431443482] [2019-11-28 18:33:56,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:33:56,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:33:56,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:33:56,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:33:56,380 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-11-28 18:33:56,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:33:56,405 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-11-28 18:33:56,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:33:56,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:33:56,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:33:56,407 INFO L225 Difference]: With dead ends: 17 [2019-11-28 18:33:56,407 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:33:56,407 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:33:56,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:33:56,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:33:56,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:33:56,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:33:56,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-28 18:33:56,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:33:56,409 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:33:56,409 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:33:56,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:33:56,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:33:56,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:33:56 BasicIcfg [2019-11-28 18:33:56,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:33:56,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:33:56,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:33:56,416 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:33:56,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:33:53" (3/4) ... [2019-11-28 18:33:56,420 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:33:56,429 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:33:56,429 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:33:56,429 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:33:56,441 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:33:56,441 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:33:56,442 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:33:56,508 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:33:56,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:33:56,512 INFO L168 Benchmark]: Toolchain (without parser) took 4265.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 949.6 MB in the beginning and 831.3 MB in the end (delta: 118.3 MB). Peak memory consumption was 262.0 MB. Max. memory is 11.5 GB. [2019-11-28 18:33:56,513 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 1.0 GB. Free memory is still 976.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:33:56,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-11-28 18:33:56,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:33:56,514 INFO L168 Benchmark]: Boogie Preprocessor took 29.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:33:56,518 INFO L168 Benchmark]: RCFGBuilder took 442.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-11-28 18:33:56,518 INFO L168 Benchmark]: TraceAbstraction took 2926.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 831.3 MB in the end (delta: 255.5 MB). Peak memory consumption was 255.5 MB. Max. memory is 11.5 GB. [2019-11-28 18:33:56,519 INFO L168 Benchmark]: Witness Printer took 92.76 ms. Allocated memory is still 1.2 GB. Free memory is still 831.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:33:56,527 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 1.0 GB. Free memory is still 976.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 721.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 442.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2926.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 831.3 MB in the end (delta: 255.5 MB). Peak memory consumption was 255.5 MB. Max. memory is 11.5 GB. * Witness Printer took 92.76 ms. Allocated memory is still 1.2 GB. Free memory is still 831.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 10 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 11 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 452 CheckedPairsTotal, 44 TotalNumberOfCompositions - 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 71 SDslu, 50 SDs, 0 SdLazy, 55 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1574 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...