/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:47:47,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:47:47,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:47:47,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:47:47,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:47:47,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:47:47,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:47:47,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:47:47,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:47:47,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:47:47,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:47:47,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:47:47,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:47:47,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:47:47,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:47:47,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:47:47,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:47:47,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:47:47,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:47:47,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:47:47,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:47:47,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:47:47,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:47:47,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:47:47,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 14:47:47,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 14:47:47,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 14:47:47,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 14:47:47,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 14:47:47,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 14:47:47,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:47:47,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:47:47,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:47:47,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:47:47,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:47:47,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:47:47,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:47:47,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:47:47,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:47:47,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:47:47,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:47:47,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 14:47:47,191 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:47:47,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:47:47,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:47:47,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:47:47,193 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:47:47,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:47:47,193 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:47:47,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:47:47,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:47:47,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:47:47,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:47:47,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:47:47,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:47:47,195 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:47:47,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:47:47,195 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:47:47,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:47:47,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:47:47,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:47:47,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:47:47,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:47:47,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:47:47,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:47:47,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:47:47,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:47:47,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:47:47,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:47:47,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:47:47,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:47:47,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:47:47,478 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:47:47,490 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:47:47,493 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:47:47,495 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:47:47,495 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:47:47,496 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2019-12-18 14:47:47,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1875739d8/ee573ef85bca4224aa65dafd14a67b3f/FLAG8e7792c5b [2019-12-18 14:47:48,128 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:47:48,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2019-12-18 14:47:48,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1875739d8/ee573ef85bca4224aa65dafd14a67b3f/FLAG8e7792c5b [2019-12-18 14:47:48,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1875739d8/ee573ef85bca4224aa65dafd14a67b3f [2019-12-18 14:47:48,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:47:48,414 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:47:48,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:47:48,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:47:48,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:47:48,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:47:48" (1/1) ... [2019-12-18 14:47:48,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779836a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:48, skipping insertion in model container [2019-12-18 14:47:48,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:47:48" (1/1) ... [2019-12-18 14:47:48,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:47:48,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:47:49,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:47:49,049 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:47:49,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:47:49,191 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:47:49,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:49 WrapperNode [2019-12-18 14:47:49,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:47:49,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:47:49,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:47:49,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:47:49,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:49" (1/1) ... [2019-12-18 14:47:49,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:49" (1/1) ... [2019-12-18 14:47:49,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:47:49,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:47:49,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:47:49,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:47:49,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:49" (1/1) ... [2019-12-18 14:47:49,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:49" (1/1) ... [2019-12-18 14:47:49,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:49" (1/1) ... [2019-12-18 14:47:49,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:49" (1/1) ... [2019-12-18 14:47:49,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:49" (1/1) ... [2019-12-18 14:47:49,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:49" (1/1) ... [2019-12-18 14:47:49,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:49" (1/1) ... [2019-12-18 14:47:49,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:47:49,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:47:49,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:47:49,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:47:49,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:49" (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 [2019-12-18 14:47:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:47:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:47:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:47:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:47:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:47:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:47:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:47:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:47:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:47:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:47:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:47:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:47:49,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:47:49,336 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 14:47:49,730 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:47:49,730 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:47:49,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:47:49 BoogieIcfgContainer [2019-12-18 14:47:49,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:47:49,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:47:49,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:47:49,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:47:49,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:47:48" (1/3) ... [2019-12-18 14:47:49,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544f3745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:47:49, skipping insertion in model container [2019-12-18 14:47:49,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:47:49" (2/3) ... [2019-12-18 14:47:49,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544f3745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:47:49, skipping insertion in model container [2019-12-18 14:47:49,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:47:49" (3/3) ... [2019-12-18 14:47:49,740 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_pso.opt.i [2019-12-18 14:47:49,749 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:47:49,749 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:47:49,757 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:47:49,758 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:47:49,784 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,785 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,785 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,785 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,786 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,786 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,786 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,787 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,787 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,787 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,788 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,788 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,788 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,789 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,789 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,789 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,789 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,790 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,794 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,794 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,794 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,795 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,802 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,803 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,803 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,803 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,806 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,806 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,807 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,807 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:47:49,822 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:47:49,844 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:47:49,844 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:47:49,844 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:47:49,844 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:47:49,845 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:47:49,845 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:47:49,845 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:47:49,845 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:47:49,858 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 14:47:49,860 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:47:49,900 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:47:49,900 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:47:49,908 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. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:47:49,912 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:47:49,929 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:47:49,929 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:47:49,931 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. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:47:49,933 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:47:49,934 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:47:51,350 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 14:47:51,505 INFO L206 etLargeBlockEncoding]: Checked pairs total: 482 [2019-12-18 14:47:51,505 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 14:47:51,509 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 14:47:51,526 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 14:47:51,528 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 14:47:51,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:47:51,537 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:47:51,538 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:47:51,538 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:47:51,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:47:51,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1824698528, now seen corresponding path program 1 times [2019-12-18 14:47:51,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:47:51,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460086431] [2019-12-18 14:47:51,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:47:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:47:51,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:47:51,756 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460086431] [2019-12-18 14:47:51,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:47:51,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:47:51,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358855949] [2019-12-18 14:47:51,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:47:51,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:47:51,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:47:51,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:47:51,776 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 14:47:51,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:47:51,812 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 14:47:51,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:47:51,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:47:51,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:47:51,828 INFO L225 Difference]: With dead ends: 42 [2019-12-18 14:47:51,829 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 14:47:51,830 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 [2019-12-18 14:47:51,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 14:47:51,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 14:47:51,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:47:51,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 14:47:51,877 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 14:47:51,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:47:51,878 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 14:47:51,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:47:51,879 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 14:47:51,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:47:51,881 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:47:51,881 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:47:51,882 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:47:51,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:47:51,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1592223242, now seen corresponding path program 1 times [2019-12-18 14:47:51,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:47:51,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130999238] [2019-12-18 14:47:51,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:47:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:47:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:47:52,032 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130999238] [2019-12-18 14:47:52,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:47:52,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:47:52,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113184211] [2019-12-18 14:47:52,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:47:52,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:47:52,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:47:52,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:47:52,036 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 14:47:52,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:47:52,068 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 14:47:52,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:47:52,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 14:47:52,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:47:52,070 INFO L225 Difference]: With dead ends: 36 [2019-12-18 14:47:52,070 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 14:47:52,071 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 [2019-12-18 14:47:52,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 14:47:52,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 14:47:52,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 14:47:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 14:47:52,075 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 14:47:52,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:47:52,076 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 14:47:52,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:47:52,076 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 14:47:52,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:47:52,077 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:47:52,077 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:47:52,077 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:47:52,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:47:52,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1186765067, now seen corresponding path program 1 times [2019-12-18 14:47:52,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:47:52,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219214723] [2019-12-18 14:47:52,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:47:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:47:52,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:47:52,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219214723] [2019-12-18 14:47:52,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:47:52,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:47:52,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401881454] [2019-12-18 14:47:52,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:47:52,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:47:52,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:47:52,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:47:52,156 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-18 14:47:52,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:47:52,179 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 14:47:52,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:47:52,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 14:47:52,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:47:52,180 INFO L225 Difference]: With dead ends: 25 [2019-12-18 14:47:52,180 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 14:47:52,180 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 [2019-12-18 14:47:52,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 14:47:52,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 14:47:52,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 14:47:52,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 14:47:52,183 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 14:47:52,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:47:52,183 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 14:47:52,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:47:52,184 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 14:47:52,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:47:52,184 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:47:52,185 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:47:52,185 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:47:52,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:47:52,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1690191566, now seen corresponding path program 1 times [2019-12-18 14:47:52,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:47:52,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527644663] [2019-12-18 14:47:52,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:47:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:47:52,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:47:52,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527644663] [2019-12-18 14:47:52,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:47:52,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:47:52,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883033033] [2019-12-18 14:47:52,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:47:52,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:47:52,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:47:52,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:47:52,255 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 14:47:52,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:47:52,272 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 14:47:52,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:47:52,272 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:47:52,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:47:52,273 INFO L225 Difference]: With dead ends: 16 [2019-12-18 14:47:52,273 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:47:52,273 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 [2019-12-18 14:47:52,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:47:52,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:47:52,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:47:52,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:47:52,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:47:52,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:47:52,274 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:47:52,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:47:52,275 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:47:52,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:47:52,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:47:52 BasicIcfg [2019-12-18 14:47:52,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:47:52,281 INFO L168 Benchmark]: Toolchain (without parser) took 3866.98 ms. Allocated memory was 143.7 MB in the beginning and 250.1 MB in the end (delta: 106.4 MB). Free memory was 99.7 MB in the beginning and 150.0 MB in the end (delta: -50.3 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. [2019-12-18 14:47:52,282 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 14:47:52,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.80 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 99.5 MB in the beginning and 158.0 MB in the end (delta: -58.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-18 14:47:52,283 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.18 ms. Allocated memory is still 200.8 MB. Free memory was 158.0 MB in the beginning and 155.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-18 14:47:52,284 INFO L168 Benchmark]: Boogie Preprocessor took 28.03 ms. Allocated memory is still 200.8 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 14:47:52,285 INFO L168 Benchmark]: RCFGBuilder took 461.51 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 133.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-18 14:47:52,286 INFO L168 Benchmark]: TraceAbstraction took 2546.28 ms. Allocated memory was 200.8 MB in the beginning and 250.1 MB in the end (delta: 49.3 MB). Free memory was 132.8 MB in the beginning and 150.0 MB in the end (delta: -17.1 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2019-12-18 14:47:52,290 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 776.80 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 99.5 MB in the beginning and 158.0 MB in the end (delta: -58.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.18 ms. Allocated memory is still 200.8 MB. Free memory was 158.0 MB in the beginning and 155.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.03 ms. Allocated memory is still 200.8 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 461.51 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 133.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2546.28 ms. Allocated memory was 200.8 MB in the beginning and 250.1 MB in the end (delta: 49.3 MB). Free memory was 132.8 MB in the beginning and 150.0 MB in the end (delta: -17.1 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 243 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 482 CheckedPairsTotal, 45 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: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 25 SDslu, 34 SDs, 0 SdLazy, 22 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...