./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f6fb2bb1 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/thin000_pso.opt.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 c2d7484d3329da20ece99192d00e62d96fcc1d2b ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 19:21:42,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 19:21:42,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 19:21:42,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 19:21:42,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 19:21:42,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 19:21:42,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 19:21:42,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 19:21:42,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 19:21:42,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 19:21:42,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 19:21:42,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 19:21:42,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 19:21:42,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 19:21:42,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 19:21:42,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 19:21:42,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 19:21:42,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 19:21:43,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 19:21:43,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 19:21:43,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 19:21:43,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 19:21:43,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 19:21:43,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 19:21:43,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 19:21:43,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 19:21:43,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 19:21:43,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 19:21:43,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 19:21:43,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 19:21:43,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 19:21:43,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 19:21:43,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 19:21:43,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 19:21:43,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 19:21:43,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 19:21:43,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 19:21:43,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 19:21:43,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 19:21:43,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 19:21:43,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 19:21:43,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 19:21:43,063 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 19:21:43,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 19:21:43,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 19:21:43,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 19:21:43,066 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 19:21:43,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 19:21:43,066 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 19:21:43,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 19:21:43,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 19:21:43,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 19:21:43,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 19:21:43,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 19:21:43,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 19:21:43,068 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 19:21:43,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 19:21:43,069 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 19:21:43,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 19:21:43,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 19:21:43,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 19:21:43,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 19:21:43,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 19:21:43,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:21:43,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 19:21:43,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 19:21:43,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 19:21:43,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 19:21:43,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 19:21:43,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 19:21:43,073 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 -> c2d7484d3329da20ece99192d00e62d96fcc1d2b [2019-11-19 19:21:43,367 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 19:21:43,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 19:21:43,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 19:21:43,393 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 19:21:43,393 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 19:21:43,394 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i [2019-11-19 19:21:43,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16e158c56/41c820ef7bcd4135a0ec49bc8e56d87f/FLAGe9554b35e [2019-11-19 19:21:44,061 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 19:21:44,063 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i [2019-11-19 19:21:44,090 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16e158c56/41c820ef7bcd4135a0ec49bc8e56d87f/FLAGe9554b35e [2019-11-19 19:21:44,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16e158c56/41c820ef7bcd4135a0ec49bc8e56d87f [2019-11-19 19:21:44,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 19:21:44,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 19:21:44,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 19:21:44,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 19:21:44,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 19:21:44,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:44" (1/1) ... [2019-11-19 19:21:44,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc41a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:44, skipping insertion in model container [2019-11-19 19:21:44,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:44" (1/1) ... [2019-11-19 19:21:44,386 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 19:21:44,451 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 19:21:44,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:21:44,926 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 19:21:45,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:21:45,111 INFO L192 MainTranslator]: Completed translation [2019-11-19 19:21:45,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45 WrapperNode [2019-11-19 19:21:45,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 19:21:45,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 19:21:45,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 19:21:45,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 19:21:45,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2019-11-19 19:21:45,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2019-11-19 19:21:45,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 19:21:45,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 19:21:45,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 19:21:45,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 19:21:45,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2019-11-19 19:21:45,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2019-11-19 19:21:45,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2019-11-19 19:21:45,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2019-11-19 19:21:45,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2019-11-19 19:21:45,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2019-11-19 19:21:45,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2019-11-19 19:21:45,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 19:21:45,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 19:21:45,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 19:21:45,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 19:21:45,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (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 [2019-11-19 19:21:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 19:21:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-19 19:21:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 19:21:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 19:21:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-19 19:21:45,262 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-19 19:21:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-19 19:21:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-19 19:21:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-19 19:21:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 19:21:45,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 19:21:45,266 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-19 19:21:45,631 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 19:21:45,632 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 19:21:45,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:45 BoogieIcfgContainer [2019-11-19 19:21:45,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 19:21:45,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 19:21:45,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 19:21:45,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 19:21:45,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:21:44" (1/3) ... [2019-11-19 19:21:45,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1b48bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:45, skipping insertion in model container [2019-11-19 19:21:45,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (2/3) ... [2019-11-19 19:21:45,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1b48bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:45, skipping insertion in model container [2019-11-19 19:21:45,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:45" (3/3) ... [2019-11-19 19:21:45,641 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_pso.opt.i [2019-11-19 19:21:45,698 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,698 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,699 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,699 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,700 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,700 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,700 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,700 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,700 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,701 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,701 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,701 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,701 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,702 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,703 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,703 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,704 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,704 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,704 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,704 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,705 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,705 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,706 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,706 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,707 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,707 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,707 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,707 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,708 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,708 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,709 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,709 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,710 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,710 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,711 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,711 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:45,743 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-19 19:21:45,743 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 19:21:45,751 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 19:21:45,760 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 19:21:45,776 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 19:21:45,777 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 19:21:45,777 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 19:21:45,777 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 19:21:45,777 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 19:21:45,777 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 19:21:45,778 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 19:21:45,778 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 19:21:45,788 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 56 transitions [2019-11-19 19:21:46,023 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2366 states. [2019-11-19 19:21:46,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states. [2019-11-19 19:21:46,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-19 19:21:46,061 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:21:46,062 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:21:46,063 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:21:46,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:21:46,071 INFO L82 PathProgramCache]: Analyzing trace with hash 247452677, now seen corresponding path program 1 times [2019-11-19 19:21:46,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:21:46,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432962682] [2019-11-19 19:21:46,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:21:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:21:46,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:21:46,509 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432962682] [2019-11-19 19:21:46,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:21:46,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 19:21:46,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126241403] [2019-11-19 19:21:46,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 19:21:46,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:21:46,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 19:21:46,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 19:21:46,537 INFO L87 Difference]: Start difference. First operand 2366 states. Second operand 4 states. [2019-11-19 19:21:46,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:21:46,699 INFO L93 Difference]: Finished difference Result 2375 states and 5560 transitions. [2019-11-19 19:21:46,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 19:21:46,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-11-19 19:21:46,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:21:46,729 INFO L225 Difference]: With dead ends: 2375 [2019-11-19 19:21:46,730 INFO L226 Difference]: Without dead ends: 1151 [2019-11-19 19:21:46,732 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 [2019-11-19 19:21:46,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2019-11-19 19:21:46,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1151. [2019-11-19 19:21:46,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1151 states. [2019-11-19 19:21:46,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 2671 transitions. [2019-11-19 19:21:46,890 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 2671 transitions. Word has length 25 [2019-11-19 19:21:46,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:21:46,892 INFO L462 AbstractCegarLoop]: Abstraction has 1151 states and 2671 transitions. [2019-11-19 19:21:46,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 19:21:46,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 2671 transitions. [2019-11-19 19:21:46,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-19 19:21:46,896 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:21:46,896 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] [2019-11-19 19:21:46,896 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:21:46,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:21:46,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1671359142, now seen corresponding path program 1 times [2019-11-19 19:21:46,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:21:46,898 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429141471] [2019-11-19 19:21:46,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:21:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:21:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:21:47,094 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429141471] [2019-11-19 19:21:47,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:21:47,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 19:21:47,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859599112] [2019-11-19 19:21:47,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 19:21:47,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:21:47,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 19:21:47,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-19 19:21:47,100 INFO L87 Difference]: Start difference. First operand 1151 states and 2671 transitions. Second operand 5 states. [2019-11-19 19:21:47,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:21:47,233 INFO L93 Difference]: Finished difference Result 908 states and 1915 transitions. [2019-11-19 19:21:47,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 19:21:47,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-19 19:21:47,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:21:47,249 INFO L225 Difference]: With dead ends: 908 [2019-11-19 19:21:47,250 INFO L226 Difference]: Without dead ends: 773 [2019-11-19 19:21:47,251 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 [2019-11-19 19:21:47,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2019-11-19 19:21:47,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 773. [2019-11-19 19:21:47,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 773 states. [2019-11-19 19:21:47,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1663 transitions. [2019-11-19 19:21:47,286 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1663 transitions. Word has length 26 [2019-11-19 19:21:47,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:21:47,286 INFO L462 AbstractCegarLoop]: Abstraction has 773 states and 1663 transitions. [2019-11-19 19:21:47,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 19:21:47,287 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1663 transitions. [2019-11-19 19:21:47,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-19 19:21:47,290 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:21:47,290 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] [2019-11-19 19:21:47,290 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:21:47,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:21:47,291 INFO L82 PathProgramCache]: Analyzing trace with hash 954489795, now seen corresponding path program 1 times [2019-11-19 19:21:47,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:21:47,291 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463193885] [2019-11-19 19:21:47,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:21:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:21:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:21:47,521 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463193885] [2019-11-19 19:21:47,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:21:47,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-19 19:21:47,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13258093] [2019-11-19 19:21:47,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 19:21:47,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:21:47,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 19:21:47,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-19 19:21:47,525 INFO L87 Difference]: Start difference. First operand 773 states and 1663 transitions. Second operand 8 states. [2019-11-19 19:21:47,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:21:47,705 INFO L93 Difference]: Finished difference Result 1259 states and 2716 transitions. [2019-11-19 19:21:47,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 19:21:47,705 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-11-19 19:21:47,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:21:47,710 INFO L225 Difference]: With dead ends: 1259 [2019-11-19 19:21:47,710 INFO L226 Difference]: Without dead ends: 710 [2019-11-19 19:21:47,712 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-19 19:21:47,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2019-11-19 19:21:47,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2019-11-19 19:21:47,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 710 states. [2019-11-19 19:21:47,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1519 transitions. [2019-11-19 19:21:47,736 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1519 transitions. Word has length 27 [2019-11-19 19:21:47,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:21:47,737 INFO L462 AbstractCegarLoop]: Abstraction has 710 states and 1519 transitions. [2019-11-19 19:21:47,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 19:21:47,737 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1519 transitions. [2019-11-19 19:21:47,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-19 19:21:47,739 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:21:47,739 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] [2019-11-19 19:21:47,740 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:21:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:21:47,740 INFO L82 PathProgramCache]: Analyzing trace with hash 59903659, now seen corresponding path program 2 times [2019-11-19 19:21:47,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:21:47,741 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982078739] [2019-11-19 19:21:47,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:21:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:21:47,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:21:47,893 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982078739] [2019-11-19 19:21:47,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:21:47,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-19 19:21:47,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029404010] [2019-11-19 19:21:47,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 19:21:47,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:21:47,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 19:21:47,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-19 19:21:47,896 INFO L87 Difference]: Start difference. First operand 710 states and 1519 transitions. Second operand 7 states. [2019-11-19 19:21:48,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:21:48,002 INFO L93 Difference]: Finished difference Result 548 states and 1141 transitions. [2019-11-19 19:21:48,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 19:21:48,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-11-19 19:21:48,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:21:48,003 INFO L225 Difference]: With dead ends: 548 [2019-11-19 19:21:48,004 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 19:21:48,004 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 [2019-11-19 19:21:48,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 19:21:48,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 19:21:48,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 19:21:48,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 19:21:48,006 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-11-19 19:21:48,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:21:48,006 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 19:21:48,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 19:21:48,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 19:21:48,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 19:21:48,011 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-19 19:21:48,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:21:48 BasicIcfg [2019-11-19 19:21:48,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 19:21:48,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 19:21:48,015 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 19:21:48,015 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 19:21:48,016 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:45" (3/4) ... [2019-11-19 19:21:48,020 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 19:21:48,029 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-19 19:21:48,029 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-19 19:21:48,035 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-19 19:21:48,035 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 19:21:48,085 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 19:21:48,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 19:21:48,089 INFO L168 Benchmark]: Toolchain (without parser) took 3723.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 945.6 MB in the beginning and 893.9 MB in the end (delta: 51.7 MB). Peak memory consumption was 200.6 MB. Max. memory is 11.5 GB. [2019-11-19 19:21:48,090 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:21:48,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-19 19:21:48,091 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.67 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. [2019-11-19 19:21:48,092 INFO L168 Benchmark]: Boogie Preprocessor took 28.50 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. [2019-11-19 19:21:48,093 INFO L168 Benchmark]: RCFGBuilder took 440.34 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: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-11-19 19:21:48,093 INFO L168 Benchmark]: TraceAbstraction took 2379.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 900.5 MB in the end (delta: 185.6 MB). Peak memory consumption was 185.6 MB. Max. memory is 11.5 GB. [2019-11-19 19:21:48,094 INFO L168 Benchmark]: Witness Printer took 71.74 ms. Allocated memory is still 1.2 GB. Free memory was 900.5 MB in the beginning and 893.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 19:21:48,098 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 746.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.67 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 28.50 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 440.34 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: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2379.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 900.5 MB in the end (delta: 185.6 MB). Peak memory consumption was 185.6 MB. Max. memory is 11.5 GB. * Witness Printer took 71.74 ms. Allocated memory is still 1.2 GB. Free memory was 900.5 MB in the beginning and 893.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 66 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 240 SDtfs, 312 SDslu, 609 SDs, 0 SdLazy, 108 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2366occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 8041 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...