./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe005_tso.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/safe005_tso.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 a5672ac27634dc052f3f98774229eea6d84c6166 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:18:14,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 19:18:14,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 19:18:14,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 19:18:14,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 19:18:14,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 19:18:14,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 19:18:14,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 19:18:14,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 19:18:14,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 19:18:14,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 19:18:14,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 19:18:14,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 19:18:14,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 19:18:14,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 19:18:14,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 19:18:14,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 19:18:14,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 19:18:14,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 19:18:14,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 19:18:14,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 19:18:14,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 19:18:14,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 19:18:14,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 19:18:14,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 19:18:14,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 19:18:14,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 19:18:14,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 19:18:14,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 19:18:14,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 19:18:14,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 19:18:14,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 19:18:14,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 19:18:14,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 19:18:14,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 19:18:14,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 19:18:14,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 19:18:14,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 19:18:14,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 19:18:14,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 19:18:14,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 19:18:14,173 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 19:18:14,188 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 19:18:14,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 19:18:14,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 19:18:14,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 19:18:14,192 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 19:18:14,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 19:18:14,192 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 19:18:14,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 19:18:14,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 19:18:14,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 19:18:14,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 19:18:14,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 19:18:14,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 19:18:14,196 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 19:18:14,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 19:18:14,197 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 19:18:14,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 19:18:14,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 19:18:14,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 19:18:14,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 19:18:14,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 19:18:14,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:18:14,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 19:18:14,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 19:18:14,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 19:18:14,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 19:18:14,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 19:18:14,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 19:18:14,204 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 -> a5672ac27634dc052f3f98774229eea6d84c6166 [2019-11-19 19:18:14,514 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 19:18:14,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 19:18:14,534 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 19:18:14,536 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 19:18:14,536 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 19:18:14,538 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe005_tso.opt.i [2019-11-19 19:18:14,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a37b00cd/ec6d8164f30346fb851a4551b57a295c/FLAG4551aa9fb [2019-11-19 19:18:15,214 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 19:18:15,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe005_tso.opt.i [2019-11-19 19:18:15,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a37b00cd/ec6d8164f30346fb851a4551b57a295c/FLAG4551aa9fb [2019-11-19 19:18:15,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a37b00cd/ec6d8164f30346fb851a4551b57a295c [2019-11-19 19:18:15,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 19:18:15,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 19:18:15,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 19:18:15,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 19:18:15,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 19:18:15,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:18:15" (1/1) ... [2019-11-19 19:18:15,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fdec7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:15, skipping insertion in model container [2019-11-19 19:18:15,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:18:15" (1/1) ... [2019-11-19 19:18:15,507 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 19:18:15,569 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 19:18:15,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:18:16,005 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 19:18:16,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:18:16,157 INFO L192 MainTranslator]: Completed translation [2019-11-19 19:18:16,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:16 WrapperNode [2019-11-19 19:18:16,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 19:18:16,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 19:18:16,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 19:18:16,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 19:18:16,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:16" (1/1) ... [2019-11-19 19:18:16,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:16" (1/1) ... [2019-11-19 19:18:16,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 19:18:16,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 19:18:16,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 19:18:16,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 19:18:16,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:16" (1/1) ... [2019-11-19 19:18:16,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:16" (1/1) ... [2019-11-19 19:18:16,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:16" (1/1) ... [2019-11-19 19:18:16,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:16" (1/1) ... [2019-11-19 19:18:16,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:16" (1/1) ... [2019-11-19 19:18:16,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:16" (1/1) ... [2019-11-19 19:18:16,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:16" (1/1) ... [2019-11-19 19:18:16,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 19:18:16,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 19:18:16,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 19:18:16,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 19:18:16,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:16" (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 19:18:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 19:18:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-19 19:18:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 19:18:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 19:18:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-19 19:18:16,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-19 19:18:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-19 19:18:16,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-19 19:18:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-19 19:18:16,306 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-19 19:18:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-19 19:18:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 19:18:16,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 19:18:16,308 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 19:18:16,615 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 19:18:16,615 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 19:18:16,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:18:16 BoogieIcfgContainer [2019-11-19 19:18:16,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 19:18:16,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 19:18:16,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 19:18:16,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 19:18:16,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:18:15" (1/3) ... [2019-11-19 19:18:16,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ecfecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:18:16, skipping insertion in model container [2019-11-19 19:18:16,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:16" (2/3) ... [2019-11-19 19:18:16,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ecfecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:18:16, skipping insertion in model container [2019-11-19 19:18:16,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:18:16" (3/3) ... [2019-11-19 19:18:16,639 INFO L109 eAbstractionObserver]: Analyzing ICFG safe005_tso.opt.i [2019-11-19 19:18:16,691 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,691 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,692 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,692 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,692 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,693 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,693 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,693 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,694 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,694 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,694 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,694 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,695 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,695 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,695 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,695 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,695 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,696 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,696 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,696 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,697 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,697 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,697 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,698 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,698 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,698 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,698 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,699 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,699 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,699 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,700 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,700 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,700 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,700 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,701 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,701 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,701 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,701 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,702 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,702 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,702 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,702 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,703 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,703 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,703 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,703 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,704 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,704 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,704 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,704 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,705 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,705 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,705 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,705 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:18:16,729 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-19 19:18:16,729 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 19:18:16,737 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 19:18:16,749 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 19:18:16,767 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 19:18:16,767 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 19:18:16,767 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 19:18:16,767 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 19:18:16,768 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 19:18:16,768 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 19:18:16,768 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 19:18:16,768 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 19:18:16,779 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 74 transitions [2019-11-19 19:18:20,413 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31743 states. [2019-11-19 19:18:20,415 INFO L276 IsEmpty]: Start isEmpty. Operand 31743 states. [2019-11-19 19:18:20,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-19 19:18:20,483 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:18:20,485 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:18:20,485 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:18:20,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:18:20,493 INFO L82 PathProgramCache]: Analyzing trace with hash 72759430, now seen corresponding path program 1 times [2019-11-19 19:18:20,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:18:20,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679139904] [2019-11-19 19:18:20,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:18:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:18:20,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:18:20,912 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679139904] [2019-11-19 19:18:20,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:18:20,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 19:18:20,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868930420] [2019-11-19 19:18:20,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 19:18:20,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:18:20,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 19:18:20,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 19:18:20,938 INFO L87 Difference]: Start difference. First operand 31743 states. Second operand 4 states. [2019-11-19 19:18:21,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:18:21,435 INFO L93 Difference]: Finished difference Result 33012 states and 103292 transitions. [2019-11-19 19:18:21,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 19:18:21,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-19 19:18:21,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:18:21,592 INFO L225 Difference]: With dead ends: 33012 [2019-11-19 19:18:21,592 INFO L226 Difference]: Without dead ends: 14274 [2019-11-19 19:18:21,596 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 19:18:21,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14274 states. [2019-11-19 19:18:22,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14274 to 14274. [2019-11-19 19:18:22,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14274 states. [2019-11-19 19:18:22,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14274 states to 14274 states and 44297 transitions. [2019-11-19 19:18:22,453 INFO L78 Accepts]: Start accepts. Automaton has 14274 states and 44297 transitions. Word has length 30 [2019-11-19 19:18:22,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:18:22,454 INFO L462 AbstractCegarLoop]: Abstraction has 14274 states and 44297 transitions. [2019-11-19 19:18:22,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 19:18:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 14274 states and 44297 transitions. [2019-11-19 19:18:22,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-19 19:18:22,483 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:18:22,483 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:18:22,484 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:18:22,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:18:22,494 INFO L82 PathProgramCache]: Analyzing trace with hash -2043456288, now seen corresponding path program 1 times [2019-11-19 19:18:22,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:18:22,497 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131770874] [2019-11-19 19:18:22,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:18:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:18:22,677 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 19:18:22,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131770874] [2019-11-19 19:18:22,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:18:22,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 19:18:22,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470855791] [2019-11-19 19:18:22,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 19:18:22,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:18:22,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 19:18:22,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-19 19:18:22,681 INFO L87 Difference]: Start difference. First operand 14274 states and 44297 transitions. Second operand 5 states. [2019-11-19 19:18:22,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:18:22,917 INFO L93 Difference]: Finished difference Result 14274 states and 42110 transitions. [2019-11-19 19:18:22,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 19:18:22,918 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-19 19:18:22,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:18:22,970 INFO L225 Difference]: With dead ends: 14274 [2019-11-19 19:18:22,970 INFO L226 Difference]: Without dead ends: 12573 [2019-11-19 19:18:22,971 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 19:18:23,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12573 states. [2019-11-19 19:18:23,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12573 to 12573. [2019-11-19 19:18:23,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12573 states. [2019-11-19 19:18:23,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12573 states to 12573 states and 38060 transitions. [2019-11-19 19:18:23,367 INFO L78 Accepts]: Start accepts. Automaton has 12573 states and 38060 transitions. Word has length 31 [2019-11-19 19:18:23,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:18:23,367 INFO L462 AbstractCegarLoop]: Abstraction has 12573 states and 38060 transitions. [2019-11-19 19:18:23,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 19:18:23,367 INFO L276 IsEmpty]: Start isEmpty. Operand 12573 states and 38060 transitions. [2019-11-19 19:18:23,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-19 19:18:23,387 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:18:23,387 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:18:23,387 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:18:23,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:18:23,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1177950591, now seen corresponding path program 1 times [2019-11-19 19:18:23,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:18:23,388 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089349238] [2019-11-19 19:18:23,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:18:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:18:23,484 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 19:18:23,484 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089349238] [2019-11-19 19:18:23,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:18:23,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-19 19:18:23,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787453014] [2019-11-19 19:18:23,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 19:18:23,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:18:23,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 19:18:23,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-19 19:18:23,486 INFO L87 Difference]: Start difference. First operand 12573 states and 38060 transitions. Second operand 6 states. [2019-11-19 19:18:23,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:18:23,660 INFO L93 Difference]: Finished difference Result 8928 states and 24938 transitions. [2019-11-19 19:18:23,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 19:18:23,661 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-19 19:18:23,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:18:23,683 INFO L225 Difference]: With dead ends: 8928 [2019-11-19 19:18:23,683 INFO L226 Difference]: Without dead ends: 7470 [2019-11-19 19:18:23,684 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-19 19:18:23,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7470 states. [2019-11-19 19:18:24,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7470 to 7470. [2019-11-19 19:18:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7470 states. [2019-11-19 19:18:24,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 21050 transitions. [2019-11-19 19:18:24,079 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 21050 transitions. Word has length 32 [2019-11-19 19:18:24,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:18:24,080 INFO L462 AbstractCegarLoop]: Abstraction has 7470 states and 21050 transitions. [2019-11-19 19:18:24,080 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 19:18:24,080 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 21050 transitions. [2019-11-19 19:18:24,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-19 19:18:24,091 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:18:24,091 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:18:24,091 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:18:24,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:18:24,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1456547444, now seen corresponding path program 1 times [2019-11-19 19:18:24,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:18:24,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681745951] [2019-11-19 19:18:24,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:18:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:18:24,223 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 19:18:24,226 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681745951] [2019-11-19 19:18:24,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:18:24,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-19 19:18:24,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139524414] [2019-11-19 19:18:24,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 19:18:24,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:18:24,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 19:18:24,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-19 19:18:24,229 INFO L87 Difference]: Start difference. First operand 7470 states and 21050 transitions. Second operand 7 states. [2019-11-19 19:18:24,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:18:24,534 INFO L93 Difference]: Finished difference Result 17028 states and 47888 transitions. [2019-11-19 19:18:24,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-19 19:18:24,535 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-19 19:18:24,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:18:24,555 INFO L225 Difference]: With dead ends: 17028 [2019-11-19 19:18:24,556 INFO L226 Difference]: Without dead ends: 6435 [2019-11-19 19:18:24,557 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2019-11-19 19:18:24,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6435 states. [2019-11-19 19:18:24,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6435 to 6435. [2019-11-19 19:18:24,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6435 states. [2019-11-19 19:18:24,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6435 states to 6435 states and 18017 transitions. [2019-11-19 19:18:24,741 INFO L78 Accepts]: Start accepts. Automaton has 6435 states and 18017 transitions. Word has length 33 [2019-11-19 19:18:24,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:18:24,742 INFO L462 AbstractCegarLoop]: Abstraction has 6435 states and 18017 transitions. [2019-11-19 19:18:24,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 19:18:24,743 INFO L276 IsEmpty]: Start isEmpty. Operand 6435 states and 18017 transitions. [2019-11-19 19:18:24,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-19 19:18:24,754 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:18:24,754 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:18:24,754 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:18:24,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:18:24,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1108402322, now seen corresponding path program 2 times [2019-11-19 19:18:24,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:18:24,755 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096917082] [2019-11-19 19:18:24,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:18:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:18:24,946 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 19:18:24,947 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096917082] [2019-11-19 19:18:24,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:18:24,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-19 19:18:24,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142202575] [2019-11-19 19:18:24,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 19:18:24,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:18:24,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 19:18:24,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-19 19:18:24,949 INFO L87 Difference]: Start difference. First operand 6435 states and 18017 transitions. Second operand 7 states. [2019-11-19 19:18:25,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:18:25,154 INFO L93 Difference]: Finished difference Result 4977 states and 13643 transitions. [2019-11-19 19:18:25,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 19:18:25,155 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-19 19:18:25,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:18:25,157 INFO L225 Difference]: With dead ends: 4977 [2019-11-19 19:18:25,157 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 19:18:25,157 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-19 19:18:25,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 19:18:25,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 19:18:25,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 19:18:25,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 19:18:25,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-19 19:18:25,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:18:25,158 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 19:18:25,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 19:18:25,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 19:18:25,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 19:18:25,162 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-19 19:18:25,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:18:25 BasicIcfg [2019-11-19 19:18:25,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 19:18:25,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 19:18:25,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 19:18:25,165 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 19:18:25,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:18:16" (3/4) ... [2019-11-19 19:18:25,170 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 19:18:25,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-19 19:18:25,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-19 19:18:25,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-19 19:18:25,206 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-19 19:18:25,206 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 19:18:25,272 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 19:18:25,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 19:18:25,279 INFO L168 Benchmark]: Toolchain (without parser) took 9784.46 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 660.1 MB). Free memory was 949.6 MB in the beginning and 1.2 GB in the end (delta: -231.8 MB). Peak memory consumption was 428.3 MB. Max. memory is 11.5 GB. [2019-11-19 19:18:25,279 INFO L168 Benchmark]: CDTParser took 0.33 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 19:18:25,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -132.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-11-19 19:18:25,285 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:18:25,286 INFO L168 Benchmark]: Boogie Preprocessor took 27.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:18:25,287 INFO L168 Benchmark]: RCFGBuilder took 377.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-11-19 19:18:25,292 INFO L168 Benchmark]: TraceAbstraction took 8545.96 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 540.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -123.5 MB). Peak memory consumption was 416.5 MB. Max. memory is 11.5 GB. [2019-11-19 19:18:25,292 INFO L168 Benchmark]: Witness Printer took 111.15 ms. Allocated memory is still 1.7 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:18:25,297 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 664.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -132.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 377.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8545.96 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 540.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -123.5 MB). Peak memory consumption was 416.5 MB. Max. memory is 11.5 GB. * Witness Printer took 111.15 ms. Allocated memory is still 1.7 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 89 locations, 1 error locations. Result: SAFE, OverallTime: 8.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 425 SDtfs, 715 SDslu, 1021 SDs, 0 SdLazy, 197 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31743occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 14414 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...