/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-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 23:30:46,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 23:30:46,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 23:30:46,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 23:30:46,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 23:30:46,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 23:30:46,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 23:30:46,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 23:30:46,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 23:30:46,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 23:30:46,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 23:30:46,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 23:30:46,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 23:30:46,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 23:30:46,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 23:30:46,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 23:30:46,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 23:30:46,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 23:30:46,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 23:30:46,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 23:30:46,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 23:30:46,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 23:30:46,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 23:30:46,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 23:30:46,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 23:30:46,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 23:30:46,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 23:30:46,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 23:30:46,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 23:30:46,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 23:30:46,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 23:30:46,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 23:30:46,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 23:30:46,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 23:30:46,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 23:30:46,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 23:30:46,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 23:30:46,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 23:30:46,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 23:30:46,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 23:30:46,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 23:30:46,200 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-NoLbe-MCR.epf [2019-12-27 23:30:46,214 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 23:30:46,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 23:30:46,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 23:30:46,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 23:30:46,216 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 23:30:46,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 23:30:46,217 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 23:30:46,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 23:30:46,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 23:30:46,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 23:30:46,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 23:30:46,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 23:30:46,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 23:30:46,218 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 23:30:46,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 23:30:46,218 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 23:30:46,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 23:30:46,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 23:30:46,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 23:30:46,219 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 23:30:46,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 23:30:46,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 23:30:46,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 23:30:46,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 23:30:46,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 23:30:46,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 23:30:46,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 23:30:46,221 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 23:30:46,221 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 23:30:46,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 23:30:46,221 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 23:30:46,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 23:30:46,478 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 23:30:46,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 23:30:46,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 23:30:46,496 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 23:30:46,496 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 23:30:46,497 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2019-12-27 23:30:46,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2595907/0d13f5e574374568bb3f47c898c26c53/FLAG838f54207 [2019-12-27 23:30:47,112 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 23:30:47,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2019-12-27 23:30:47,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2595907/0d13f5e574374568bb3f47c898c26c53/FLAG838f54207 [2019-12-27 23:30:47,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2595907/0d13f5e574374568bb3f47c898c26c53 [2019-12-27 23:30:47,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 23:30:47,399 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 23:30:47,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 23:30:47,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 23:30:47,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 23:30:47,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:30:47" (1/1) ... [2019-12-27 23:30:47,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4866f02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:47, skipping insertion in model container [2019-12-27 23:30:47,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:30:47" (1/1) ... [2019-12-27 23:30:47,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 23:30:47,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 23:30:47,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 23:30:48,001 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 23:30:48,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 23:30:48,141 INFO L208 MainTranslator]: Completed translation [2019-12-27 23:30:48,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:48 WrapperNode [2019-12-27 23:30:48,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 23:30:48,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 23:30:48,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 23:30:48,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 23:30:48,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:48" (1/1) ... [2019-12-27 23:30:48,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:48" (1/1) ... [2019-12-27 23:30:48,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 23:30:48,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 23:30:48,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 23:30:48,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 23:30:48,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:48" (1/1) ... [2019-12-27 23:30:48,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:48" (1/1) ... [2019-12-27 23:30:48,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:48" (1/1) ... [2019-12-27 23:30:48,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:48" (1/1) ... [2019-12-27 23:30:48,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:48" (1/1) ... [2019-12-27 23:30:48,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:48" (1/1) ... [2019-12-27 23:30:48,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:48" (1/1) ... [2019-12-27 23:30:48,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 23:30:48,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 23:30:48,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 23:30:48,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 23:30:48,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:48" (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 23:30:48,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 23:30:48,301 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 23:30:48,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 23:30:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 23:30:48,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 23:30:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 23:30:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 23:30:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 23:30:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 23:30:48,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 23:30:48,304 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 23:30:48,680 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 23:30:48,680 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-27 23:30:48,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:30:48 BoogieIcfgContainer [2019-12-27 23:30:48,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 23:30:48,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 23:30:48,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 23:30:48,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 23:30:48,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 11:30:47" (1/3) ... [2019-12-27 23:30:48,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7b4d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:30:48, skipping insertion in model container [2019-12-27 23:30:48,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:30:48" (2/3) ... [2019-12-27 23:30:48,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7b4d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:30:48, skipping insertion in model container [2019-12-27 23:30:48,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:30:48" (3/3) ... [2019-12-27 23:30:48,690 INFO L109 eAbstractionObserver]: Analyzing ICFG dekker.i [2019-12-27 23:30:48,701 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 23:30:48,701 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 23:30:48,708 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 23:30:48,709 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 23:30:48,737 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,737 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,738 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,738 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,739 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,739 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,740 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,741 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,741 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,741 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,742 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,742 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,747 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,747 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,747 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,748 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,755 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,755 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,756 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,756 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:30:48,783 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 23:30:48,801 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 23:30:48,801 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 23:30:48,801 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 23:30:48,802 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 23:30:48,802 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 23:30:48,802 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 23:30:48,802 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 23:30:48,802 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 23:30:48,814 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 77 transitions [2019-12-27 23:30:48,884 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 935 states. [2019-12-27 23:30:48,886 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states. [2019-12-27 23:30:48,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-27 23:30:48,897 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:30:48,898 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:30:48,899 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:30:48,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:30:48,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1213500261, now seen corresponding path program 1 times [2019-12-27 23:30:48,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:30:48,920 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583846448] [2019-12-27 23:30:48,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:30:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:30:49,090 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 23:30:49,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583846448] [2019-12-27 23:30:49,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:30:49,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 23:30:49,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1282987200] [2019-12-27 23:30:49,094 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:30:49,100 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:30:49,117 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 21 states and 20 transitions. [2019-12-27 23:30:49,118 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:30:49,122 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:30:49,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 23:30:49,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:30:49,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 23:30:49,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 23:30:49,140 INFO L87 Difference]: Start difference. First operand 935 states. Second operand 2 states. [2019-12-27 23:30:49,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:30:49,188 INFO L93 Difference]: Finished difference Result 935 states and 2570 transitions. [2019-12-27 23:30:49,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 23:30:49,191 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-12-27 23:30:49,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:30:49,218 INFO L225 Difference]: With dead ends: 935 [2019-12-27 23:30:49,219 INFO L226 Difference]: Without dead ends: 821 [2019-12-27 23:30:49,221 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 23:30:49,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2019-12-27 23:30:49,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2019-12-27 23:30:49,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2019-12-27 23:30:49,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 2300 transitions. [2019-12-27 23:30:49,342 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 2300 transitions. Word has length 20 [2019-12-27 23:30:49,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:30:49,343 INFO L462 AbstractCegarLoop]: Abstraction has 821 states and 2300 transitions. [2019-12-27 23:30:49,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 23:30:49,343 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 2300 transitions. [2019-12-27 23:30:49,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-27 23:30:49,345 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:30:49,345 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:30:49,345 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:30:49,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:30:49,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1213470470, now seen corresponding path program 1 times [2019-12-27 23:30:49,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:30:49,347 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16331617] [2019-12-27 23:30:49,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:30:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:30:49,455 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 23:30:49,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16331617] [2019-12-27 23:30:49,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:30:49,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:30:49,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1757596305] [2019-12-27 23:30:49,477 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:30:49,480 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:30:49,482 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 21 states and 20 transitions. [2019-12-27 23:30:49,483 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:30:49,483 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:30:49,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:30:49,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:30:49,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:30:49,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:30:49,486 INFO L87 Difference]: Start difference. First operand 821 states and 2300 transitions. Second operand 3 states. [2019-12-27 23:30:49,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:30:49,533 INFO L93 Difference]: Finished difference Result 848 states and 2299 transitions. [2019-12-27 23:30:49,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:30:49,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-12-27 23:30:49,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:30:49,546 INFO L225 Difference]: With dead ends: 848 [2019-12-27 23:30:49,546 INFO L226 Difference]: Without dead ends: 686 [2019-12-27 23:30:49,547 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 23:30:49,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2019-12-27 23:30:49,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 632. [2019-12-27 23:30:49,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2019-12-27 23:30:49,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 1741 transitions. [2019-12-27 23:30:49,596 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 1741 transitions. Word has length 20 [2019-12-27 23:30:49,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:30:49,596 INFO L462 AbstractCegarLoop]: Abstraction has 632 states and 1741 transitions. [2019-12-27 23:30:49,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:30:49,597 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 1741 transitions. [2019-12-27 23:30:49,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-27 23:30:49,599 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:30:49,599 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:30:49,599 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:30:49,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:30:49,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1428252561, now seen corresponding path program 1 times [2019-12-27 23:30:49,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:30:49,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447790693] [2019-12-27 23:30:49,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:30:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:30:49,667 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 23:30:49,667 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447790693] [2019-12-27 23:30:49,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:30:49,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:30:49,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [642828353] [2019-12-27 23:30:49,668 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:30:49,670 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:30:49,673 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 24 states and 23 transitions. [2019-12-27 23:30:49,674 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:30:49,674 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:30:49,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:30:49,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:30:49,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:30:49,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:30:49,676 INFO L87 Difference]: Start difference. First operand 632 states and 1741 transitions. Second operand 3 states. [2019-12-27 23:30:49,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:30:49,703 INFO L93 Difference]: Finished difference Result 584 states and 1569 transitions. [2019-12-27 23:30:49,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:30:49,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-27 23:30:49,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:30:49,707 INFO L225 Difference]: With dead ends: 584 [2019-12-27 23:30:49,707 INFO L226 Difference]: Without dead ends: 407 [2019-12-27 23:30:49,707 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 23:30:49,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2019-12-27 23:30:49,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2019-12-27 23:30:49,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-12-27 23:30:49,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 1092 transitions. [2019-12-27 23:30:49,722 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 1092 transitions. Word has length 23 [2019-12-27 23:30:49,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:30:49,724 INFO L462 AbstractCegarLoop]: Abstraction has 407 states and 1092 transitions. [2019-12-27 23:30:49,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:30:49,724 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 1092 transitions. [2019-12-27 23:30:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-27 23:30:49,727 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:30:49,727 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:30:49,727 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:30:49,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:30:49,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1488623692, now seen corresponding path program 1 times [2019-12-27 23:30:49,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:30:49,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612820219] [2019-12-27 23:30:49,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:30:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:30:49,792 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 23:30:49,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612820219] [2019-12-27 23:30:49,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:30:49,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:30:49,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1703348602] [2019-12-27 23:30:49,794 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:30:49,798 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:30:49,801 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 38 states and 46 transitions. [2019-12-27 23:30:49,802 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:30:49,811 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 23:30:49,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:30:49,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:30:49,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:30:49,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:30:49,812 INFO L87 Difference]: Start difference. First operand 407 states and 1092 transitions. Second operand 3 states. [2019-12-27 23:30:49,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:30:49,844 INFO L93 Difference]: Finished difference Result 407 states and 1077 transitions. [2019-12-27 23:30:49,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:30:49,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-12-27 23:30:49,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:30:49,848 INFO L225 Difference]: With dead ends: 407 [2019-12-27 23:30:49,848 INFO L226 Difference]: Without dead ends: 365 [2019-12-27 23:30:49,849 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 23:30:49,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2019-12-27 23:30:49,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2019-12-27 23:30:49,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-12-27 23:30:49,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 953 transitions. [2019-12-27 23:30:49,862 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 953 transitions. Word has length 27 [2019-12-27 23:30:49,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:30:49,864 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 953 transitions. [2019-12-27 23:30:49,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:30:49,864 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 953 transitions. [2019-12-27 23:30:49,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-27 23:30:49,866 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:30:49,866 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:30:49,866 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:30:49,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:30:49,866 INFO L82 PathProgramCache]: Analyzing trace with hash -423541842, now seen corresponding path program 1 times [2019-12-27 23:30:49,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:30:49,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316843635] [2019-12-27 23:30:49,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:30:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:30:49,953 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 23:30:49,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316843635] [2019-12-27 23:30:49,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:30:49,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:30:49,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [234775726] [2019-12-27 23:30:49,955 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:30:49,960 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:30:49,964 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 47 states and 64 transitions. [2019-12-27 23:30:49,964 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:30:49,975 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 5 times. [2019-12-27 23:30:49,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:30:49,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:30:49,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:30:49,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:30:49,977 INFO L87 Difference]: Start difference. First operand 365 states and 953 transitions. Second operand 3 states. [2019-12-27 23:30:49,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:30:49,995 INFO L93 Difference]: Finished difference Result 230 states and 665 transitions. [2019-12-27 23:30:49,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:30:49,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-12-27 23:30:49,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:30:49,997 INFO L225 Difference]: With dead ends: 230 [2019-12-27 23:30:49,997 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 23:30:49,997 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 23:30:49,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 23:30:49,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 23:30:49,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 23:30:49,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 23:30:49,998 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-12-27 23:30:49,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:30:49,999 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 23:30:49,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:30:49,999 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 23:30:49,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 23:30:50,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 11:30:50 BasicIcfg [2019-12-27 23:30:50,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 23:30:50,008 INFO L168 Benchmark]: Toolchain (without parser) took 2608.24 ms. Allocated memory was 137.9 MB in the beginning and 235.9 MB in the end (delta: 98.0 MB). Free memory was 101.3 MB in the beginning and 138.9 MB in the end (delta: -37.6 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. [2019-12-27 23:30:50,009 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 23:30:50,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.34 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 101.1 MB in the beginning and 164.0 MB in the end (delta: -62.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-12-27 23:30:50,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.62 ms. Allocated memory is still 203.9 MB. Free memory was 164.0 MB in the beginning and 162.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 23:30:50,013 INFO L168 Benchmark]: Boogie Preprocessor took 41.91 ms. Allocated memory is still 203.9 MB. Free memory was 162.0 MB in the beginning and 160.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 23:30:50,014 INFO L168 Benchmark]: RCFGBuilder took 447.61 ms. Allocated memory is still 203.9 MB. Free memory was 160.6 MB in the beginning and 139.2 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-12-27 23:30:50,016 INFO L168 Benchmark]: TraceAbstraction took 1321.93 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 139.2 MB in the beginning and 140.4 MB in the end (delta: -1.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2019-12-27 23:30:50,024 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 741.34 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 101.1 MB in the beginning and 164.0 MB in the end (delta: -62.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.62 ms. Allocated memory is still 203.9 MB. Free memory was 164.0 MB in the beginning and 162.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.91 ms. Allocated memory is still 203.9 MB. Free memory was 162.0 MB in the beginning and 160.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.61 ms. Allocated memory is still 203.9 MB. Free memory was 160.6 MB in the beginning and 139.2 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1321.93 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 139.2 MB in the beginning and 140.4 MB in the end (delta: -1.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 64 locations, 2 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 336 SDtfs, 113 SDslu, 144 SDs, 0 SdLazy, 24 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=935occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 54 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 3108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...