/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 04:00:59,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 04:00:59,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 04:00:59,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 04:00:59,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 04:00:59,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 04:00:59,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 04:00:59,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 04:00:59,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 04:00:59,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 04:00:59,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 04:00:59,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 04:00:59,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 04:00:59,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 04:00:59,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 04:00:59,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 04:00:59,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 04:00:59,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 04:00:59,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 04:00:59,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 04:00:59,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 04:00:59,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 04:00:59,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 04:00:59,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 04:00:59,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 04:00:59,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 04:00:59,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 04:00:59,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 04:00:59,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 04:00:59,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 04:00:59,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 04:00:59,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 04:00:59,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 04:00:59,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 04:00:59,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 04:00:59,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 04:00:59,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 04:00:59,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 04:00:59,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 04:00:59,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 04:00:59,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 04:00:59,195 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 04:00:59,210 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 04:00:59,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 04:00:59,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 04:00:59,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 04:00:59,212 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 04:00:59,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 04:00:59,212 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 04:00:59,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 04:00:59,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 04:00:59,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 04:00:59,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 04:00:59,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 04:00:59,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 04:00:59,213 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 04:00:59,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 04:00:59,214 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 04:00:59,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 04:00:59,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 04:00:59,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 04:00:59,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 04:00:59,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 04:00:59,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 04:00:59,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 04:00:59,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 04:00:59,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 04:00:59,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 04:00:59,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 04:00:59,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 04:00:59,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 04:00:59,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 04:00:59,509 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 04:00:59,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 04:00:59,515 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 04:00:59,515 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 04:00:59,516 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2019-12-27 04:00:59,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8da6755b/4166999c62b44de088da88399ec40c48/FLAG8d5f493ac [2019-12-27 04:01:00,164 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 04:01:00,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc.i [2019-12-27 04:01:00,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8da6755b/4166999c62b44de088da88399ec40c48/FLAG8d5f493ac [2019-12-27 04:01:00,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8da6755b/4166999c62b44de088da88399ec40c48 [2019-12-27 04:01:00,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 04:01:00,414 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 04:01:00,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 04:01:00,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 04:01:00,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 04:01:00,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:01:00" (1/1) ... [2019-12-27 04:01:00,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b973043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:00, skipping insertion in model container [2019-12-27 04:01:00,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:01:00" (1/1) ... [2019-12-27 04:01:00,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 04:01:00,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 04:01:00,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:01:00,962 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 04:01:01,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:01:01,101 INFO L208 MainTranslator]: Completed translation [2019-12-27 04:01:01,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:01 WrapperNode [2019-12-27 04:01:01,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 04:01:01,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 04:01:01,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 04:01:01,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 04:01:01,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:01" (1/1) ... [2019-12-27 04:01:01,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:01" (1/1) ... [2019-12-27 04:01:01,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 04:01:01,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 04:01:01,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 04:01:01,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 04:01:01,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:01" (1/1) ... [2019-12-27 04:01:01,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:01" (1/1) ... [2019-12-27 04:01:01,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:01" (1/1) ... [2019-12-27 04:01:01,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:01" (1/1) ... [2019-12-27 04:01:01,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:01" (1/1) ... [2019-12-27 04:01:01,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:01" (1/1) ... [2019-12-27 04:01:01,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:01" (1/1) ... [2019-12-27 04:01:01,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 04:01:01,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 04:01:01,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 04:01:01,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 04:01:01,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:01" (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 [2019-12-27 04:01:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 04:01:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 04:01:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 04:01:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 04:01:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 04:01:01,249 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 04:01:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 04:01:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 04:01:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 04:01:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 04:01:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 04:01:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 04:01:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 04:01:01,252 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 04:01:01,625 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 04:01:01,625 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 04:01:01,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:01:01 BoogieIcfgContainer [2019-12-27 04:01:01,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 04:01:01,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 04:01:01,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 04:01:01,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 04:01:01,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 04:01:00" (1/3) ... [2019-12-27 04:01:01,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cac7886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:01:01, skipping insertion in model container [2019-12-27 04:01:01,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:01:01" (2/3) ... [2019-12-27 04:01:01,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cac7886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:01:01, skipping insertion in model container [2019-12-27 04:01:01,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:01:01" (3/3) ... [2019-12-27 04:01:01,635 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc.i [2019-12-27 04:01:01,645 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 04:01:01,646 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 04:01:01,653 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 04:01:01,654 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 04:01:01,682 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,682 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,683 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,683 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,683 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,684 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,684 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,684 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,685 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,685 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,685 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,685 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,686 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,686 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,686 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,687 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,687 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,687 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,691 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,692 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,692 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,692 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,705 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,705 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,705 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,706 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,708 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,708 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,708 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,709 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:01:01,727 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 04:01:01,752 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:01:01,753 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:01:01,753 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:01:01,754 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:01:01,754 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:01:01,754 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:01:01,755 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:01:01,756 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:01:01,770 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 04:01:01,771 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 04:01:01,814 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 04:01:01,815 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:01:01,821 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 04:01:01,824 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 04:01:01,848 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 04:01:01,848 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:01:01,849 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 04:01:01,851 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 04:01:01,852 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 04:01:03,235 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 04:01:03,475 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 04:01:03,476 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 04:01:03,481 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 04:01:03,495 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 04:01:03,499 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 04:01:03,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 04:01:03,506 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:01:03,507 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:01:03,508 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:01:03,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:01:03,517 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-12-27 04:01:03,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:01:03,533 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146187214] [2019-12-27 04:01:03,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:01:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:01:03,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:01:03,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146187214] [2019-12-27 04:01:03,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:01:03,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:01:03,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609096450] [2019-12-27 04:01:03,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:01:03,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:01:03,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:01:03,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:01:03,843 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 04:01:03,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:01:03,891 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 04:01:03,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:01:03,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 04:01:03,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:01:03,919 INFO L225 Difference]: With dead ends: 42 [2019-12-27 04:01:03,919 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 04:01:03,921 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:01:03,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 04:01:03,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 04:01:03,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 04:01:03,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 04:01:03,958 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 04:01:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:01:03,959 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 04:01:03,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:01:03,959 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 04:01:03,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 04:01:03,960 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:01:03,960 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:01:03,961 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:01:03,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:01:03,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1649012318, now seen corresponding path program 1 times [2019-12-27 04:01:03,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:01:03,962 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416561940] [2019-12-27 04:01:03,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:01:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:01:04,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:01:04,057 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416561940] [2019-12-27 04:01:04,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:01:04,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:01:04,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168550766] [2019-12-27 04:01:04,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:01:04,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:01:04,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:01:04,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:01:04,060 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 04:01:04,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:01:04,066 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 04:01:04,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:01:04,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 04:01:04,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:01:04,068 INFO L225 Difference]: With dead ends: 32 [2019-12-27 04:01:04,068 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 04:01:04,069 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:01:04,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 04:01:04,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 04:01:04,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 04:01:04,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 04:01:04,075 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 9 [2019-12-27 04:01:04,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:01:04,076 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 04:01:04,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:01:04,076 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 04:01:04,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 04:01:04,077 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:01:04,077 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:01:04,077 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:01:04,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:01:04,078 INFO L82 PathProgramCache]: Analyzing trace with hash 420225671, now seen corresponding path program 1 times [2019-12-27 04:01:04,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:01:04,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52958355] [2019-12-27 04:01:04,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:01:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:01:04,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:01:04,229 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52958355] [2019-12-27 04:01:04,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:01:04,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 04:01:04,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426634382] [2019-12-27 04:01:04,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 04:01:04,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:01:04,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 04:01:04,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:01:04,231 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 6 states. [2019-12-27 04:01:04,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:01:04,310 INFO L93 Difference]: Finished difference Result 32 states and 57 transitions. [2019-12-27 04:01:04,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:01:04,311 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 04:01:04,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:01:04,312 INFO L225 Difference]: With dead ends: 32 [2019-12-27 04:01:04,312 INFO L226 Difference]: Without dead ends: 24 [2019-12-27 04:01:04,312 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-12-27 04:01:04,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-27 04:01:04,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-27 04:01:04,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-27 04:01:04,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 38 transitions. [2019-12-27 04:01:04,316 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 38 transitions. Word has length 10 [2019-12-27 04:01:04,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:01:04,317 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 38 transitions. [2019-12-27 04:01:04,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 04:01:04,317 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-12-27 04:01:04,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:01:04,318 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:01:04,318 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:01:04,318 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:01:04,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:01:04,319 INFO L82 PathProgramCache]: Analyzing trace with hash 868107411, now seen corresponding path program 1 times [2019-12-27 04:01:04,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:01:04,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437227788] [2019-12-27 04:01:04,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:01:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:01:04,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:01:04,390 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437227788] [2019-12-27 04:01:04,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:01:04,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:01:04,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628660365] [2019-12-27 04:01:04,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:01:04,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:01:04,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:01:04,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:01:04,394 INFO L87 Difference]: Start difference. First operand 24 states and 38 transitions. Second operand 4 states. [2019-12-27 04:01:04,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:01:04,414 INFO L93 Difference]: Finished difference Result 27 states and 40 transitions. [2019-12-27 04:01:04,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:01:04,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 04:01:04,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:01:04,416 INFO L225 Difference]: With dead ends: 27 [2019-12-27 04:01:04,416 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 04:01:04,416 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:01:04,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 04:01:04,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 04:01:04,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 04:01:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 04:01:04,419 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-12-27 04:01:04,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:01:04,420 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 04:01:04,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:01:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 04:01:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:01:04,420 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:01:04,421 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:01:04,421 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:01:04,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:01:04,421 INFO L82 PathProgramCache]: Analyzing trace with hash 144947967, now seen corresponding path program 2 times [2019-12-27 04:01:04,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:01:04,422 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887131724] [2019-12-27 04:01:04,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:01:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:01:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:01:04,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887131724] [2019-12-27 04:01:04,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:01:04,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:01:04,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623267877] [2019-12-27 04:01:04,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:01:04,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:01:04,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:01:04,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:01:04,495 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 04:01:04,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:01:04,513 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-27 04:01:04,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:01:04,513 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 04:01:04,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:01:04,514 INFO L225 Difference]: With dead ends: 18 [2019-12-27 04:01:04,514 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 04:01:04,515 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:01:04,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 04:01:04,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 04:01:04,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 04:01:04,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-27 04:01:04,517 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-27 04:01:04,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:01:04,517 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-27 04:01:04,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:01:04,518 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-27 04:01:04,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:01:04,518 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:01:04,518 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:01:04,518 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:01:04,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:01:04,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1810889517, now seen corresponding path program 3 times [2019-12-27 04:01:04,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:01:04,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302336733] [2019-12-27 04:01:04,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:01:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:01:04,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 04:01:04,559 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302336733] [2019-12-27 04:01:04,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:01:04,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:01:04,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89453610] [2019-12-27 04:01:04,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:01:04,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:01:04,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:01:04,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:01:04,561 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-27 04:01:04,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:01:04,579 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-27 04:01:04,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:01:04,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 04:01:04,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:01:04,580 INFO L225 Difference]: With dead ends: 11 [2019-12-27 04:01:04,581 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 04:01:04,581 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:01:04,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 04:01:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 04:01:04,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 04:01:04,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 04:01:04,582 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 04:01:04,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:01:04,582 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 04:01:04,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:01:04,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 04:01:04,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 04:01:04,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 04:01:04 BasicIcfg [2019-12-27 04:01:04,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 04:01:04,589 INFO L168 Benchmark]: Toolchain (without parser) took 4174.90 ms. Allocated memory was 134.7 MB in the beginning and 255.3 MB in the end (delta: 120.6 MB). Free memory was 97.2 MB in the beginning and 136.9 MB in the end (delta: -39.7 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2019-12-27 04:01:04,590 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 134.7 MB. Free memory was 117.9 MB in the beginning and 117.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 04:01:04,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.73 ms. Allocated memory was 134.7 MB in the beginning and 199.8 MB in the end (delta: 65.0 MB). Free memory was 97.0 MB in the beginning and 156.9 MB in the end (delta: -59.9 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-12-27 04:01:04,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.88 ms. Allocated memory is still 199.8 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 04:01:04,592 INFO L168 Benchmark]: Boogie Preprocessor took 29.00 ms. Allocated memory is still 199.8 MB. Free memory was 154.8 MB in the beginning and 152.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 04:01:04,593 INFO L168 Benchmark]: RCFGBuilder took 440.45 ms. Allocated memory is still 199.8 MB. Free memory was 152.7 MB in the beginning and 132.0 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-27 04:01:04,594 INFO L168 Benchmark]: TraceAbstraction took 2959.20 ms. Allocated memory was 199.8 MB in the beginning and 255.3 MB in the end (delta: 55.6 MB). Free memory was 132.0 MB in the beginning and 136.9 MB in the end (delta: -5.0 MB). Peak memory consumption was 50.6 MB. Max. memory is 7.1 GB. [2019-12-27 04:01:04,598 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 134.7 MB. Free memory was 117.9 MB in the beginning and 117.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.73 ms. Allocated memory was 134.7 MB in the beginning and 199.8 MB in the end (delta: 65.0 MB). Free memory was 97.0 MB in the beginning and 156.9 MB in the end (delta: -59.9 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.88 ms. Allocated memory is still 199.8 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.00 ms. Allocated memory is still 199.8 MB. Free memory was 154.8 MB in the beginning and 152.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 440.45 ms. Allocated memory is still 199.8 MB. Free memory was 152.7 MB in the beginning and 132.0 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2959.20 ms. Allocated memory was 199.8 MB in the beginning and 255.3 MB in the end (delta: 55.6 MB). Free memory was 132.0 MB in the beginning and 136.9 MB in the end (delta: -5.0 MB). Peak memory consumption was 50.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 230 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 38 SDslu, 49 SDs, 0 SdLazy, 48 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1459 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...