/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 06:27:10,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 06:27:10,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 06:27:10,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 06:27:10,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 06:27:10,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 06:27:10,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 06:27:10,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 06:27:10,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 06:27:10,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 06:27:10,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 06:27:10,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 06:27:10,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 06:27:10,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 06:27:10,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 06:27:10,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 06:27:10,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 06:27:10,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 06:27:10,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 06:27:10,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 06:27:10,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 06:27:10,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 06:27:10,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 06:27:10,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 06:27:10,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 06:27:10,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 06:27:10,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 06:27:10,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 06:27:10,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 06:27:10,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 06:27:10,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 06:27:10,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 06:27:10,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 06:27:10,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 06:27:10,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 06:27:10,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 06:27:10,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 06:27:10,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 06:27:10,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 06:27:10,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 06:27:10,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 06:27:10,187 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.epf [2020-04-18 06:27:10,202 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 06:27:10,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 06:27:10,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 06:27:10,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 06:27:10,204 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 06:27:10,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 06:27:10,205 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 06:27:10,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 06:27:10,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 06:27:10,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 06:27:10,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 06:27:10,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 06:27:10,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 06:27:10,206 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 06:27:10,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 06:27:10,206 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 06:27:10,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 06:27:10,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 06:27:10,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 06:27:10,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 06:27:10,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 06:27:10,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 06:27:10,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 06:27:10,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 06:27:10,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 06:27:10,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 06:27:10,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 06:27:10,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 06:27:10,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 06:27:10,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 06:27:10,481 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 06:27:10,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 06:27:10,499 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 06:27:10,500 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 06:27:10,500 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 06:27:10,501 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i [2020-04-18 06:27:10,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b3ecb2ce/07ac746ec8894a7fbdab06756b9f455e/FLAGe737ee04a [2020-04-18 06:27:11,117 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 06:27:11,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i [2020-04-18 06:27:11,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b3ecb2ce/07ac746ec8894a7fbdab06756b9f455e/FLAGe737ee04a [2020-04-18 06:27:11,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b3ecb2ce/07ac746ec8894a7fbdab06756b9f455e [2020-04-18 06:27:11,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 06:27:11,425 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 06:27:11,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 06:27:11,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 06:27:11,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 06:27:11,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:27:11" (1/1) ... [2020-04-18 06:27:11,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d637261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:11, skipping insertion in model container [2020-04-18 06:27:11,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:27:11" (1/1) ... [2020-04-18 06:27:11,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 06:27:11,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 06:27:11,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 06:27:11,927 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 06:27:11,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 06:27:12,053 INFO L208 MainTranslator]: Completed translation [2020-04-18 06:27:12,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:12 WrapperNode [2020-04-18 06:27:12,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 06:27:12,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 06:27:12,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 06:27:12,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 06:27:12,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:12" (1/1) ... [2020-04-18 06:27:12,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:12" (1/1) ... [2020-04-18 06:27:12,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 06:27:12,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 06:27:12,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 06:27:12,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 06:27:12,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:12" (1/1) ... [2020-04-18 06:27:12,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:12" (1/1) ... [2020-04-18 06:27:12,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:12" (1/1) ... [2020-04-18 06:27:12,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:12" (1/1) ... [2020-04-18 06:27:12,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:12" (1/1) ... [2020-04-18 06:27:12,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:12" (1/1) ... [2020-04-18 06:27:12,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:12" (1/1) ... [2020-04-18 06:27:12,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 06:27:12,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 06:27:12,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 06:27:12,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 06:27:12,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:12" (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 [2020-04-18 06:27:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 06:27:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 06:27:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 06:27:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 06:27:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 06:27:12,198 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 06:27:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 06:27:12,198 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 06:27:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 06:27:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 06:27:12,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 06:27:12,201 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 06:27:12,617 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 06:27:12,618 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 06:27:12,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:27:12 BoogieIcfgContainer [2020-04-18 06:27:12,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 06:27:12,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 06:27:12,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 06:27:12,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 06:27:12,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:27:11" (1/3) ... [2020-04-18 06:27:12,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3bc5e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:27:12, skipping insertion in model container [2020-04-18 06:27:12,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:27:12" (2/3) ... [2020-04-18 06:27:12,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3bc5e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:27:12, skipping insertion in model container [2020-04-18 06:27:12,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:27:12" (3/3) ... [2020-04-18 06:27:12,641 INFO L109 eAbstractionObserver]: Analyzing ICFG safe006_tso.oepc.i [2020-04-18 06:27:12,653 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 06:27:12,653 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 06:27:12,665 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 06:27:12,666 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 06:27:12,692 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,693 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,693 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,693 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,694 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,694 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,694 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,695 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,695 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,695 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,696 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,696 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,700 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,700 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,701 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,701 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,708 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,708 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,709 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,709 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:27:12,727 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 06:27:12,747 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 06:27:12,747 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 06:27:12,748 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 06:27:12,748 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 06:27:12,748 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 06:27:12,748 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 06:27:12,748 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 06:27:12,749 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 06:27:12,762 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 06:27:12,841 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1121 states. [2020-04-18 06:27:12,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states. [2020-04-18 06:27:12,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 06:27:12,874 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:27:12,876 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:27:12,876 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:27:12,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:27:12,883 INFO L82 PathProgramCache]: Analyzing trace with hash 441942769, now seen corresponding path program 1 times [2020-04-18 06:27:12,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:27:12,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117322955] [2020-04-18 06:27:12,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:27:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:27:13,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 06:27:13,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117322955] [2020-04-18 06:27:13,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:27:13,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:27:13,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882737576] [2020-04-18 06:27:13,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:27:13,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:27:13,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:27:13,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:27:13,407 INFO L87 Difference]: Start difference. First operand 1121 states. Second operand 7 states. [2020-04-18 06:27:13,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:27:13,717 INFO L93 Difference]: Finished difference Result 1513 states and 3945 transitions. [2020-04-18 06:27:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 06:27:13,719 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-04-18 06:27:13,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:27:13,740 INFO L225 Difference]: With dead ends: 1513 [2020-04-18 06:27:13,740 INFO L226 Difference]: Without dead ends: 596 [2020-04-18 06:27:13,742 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 06:27:13,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-04-18 06:27:13,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2020-04-18 06:27:13,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-04-18 06:27:13,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 1507 transitions. [2020-04-18 06:27:13,836 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 1507 transitions. Word has length 31 [2020-04-18 06:27:13,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:27:13,837 INFO L479 AbstractCegarLoop]: Abstraction has 596 states and 1507 transitions. [2020-04-18 06:27:13,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:27:13,838 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 1507 transitions. [2020-04-18 06:27:13,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-04-18 06:27:13,842 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:27:13,842 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:27:13,842 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:27:13,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:27:13,843 INFO L82 PathProgramCache]: Analyzing trace with hash 256262898, now seen corresponding path program 1 times [2020-04-18 06:27:13,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:27:13,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244450619] [2020-04-18 06:27:13,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:27:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:27:14,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 06:27:14,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244450619] [2020-04-18 06:27:14,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:27:14,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:27:14,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668227886] [2020-04-18 06:27:14,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:27:14,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:27:14,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:27:14,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:27:14,045 INFO L87 Difference]: Start difference. First operand 596 states and 1507 transitions. Second operand 7 states. [2020-04-18 06:27:14,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:27:14,225 INFO L93 Difference]: Finished difference Result 676 states and 1686 transitions. [2020-04-18 06:27:14,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 06:27:14,226 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-04-18 06:27:14,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:27:14,232 INFO L225 Difference]: With dead ends: 676 [2020-04-18 06:27:14,232 INFO L226 Difference]: Without dead ends: 536 [2020-04-18 06:27:14,233 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 06:27:14,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-04-18 06:27:14,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2020-04-18 06:27:14,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-04-18 06:27:14,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1339 transitions. [2020-04-18 06:27:14,281 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1339 transitions. Word has length 33 [2020-04-18 06:27:14,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:27:14,282 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 1339 transitions. [2020-04-18 06:27:14,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:27:14,282 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1339 transitions. [2020-04-18 06:27:14,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 06:27:14,286 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:27:14,292 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:27:14,293 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:27:14,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:27:14,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1419898419, now seen corresponding path program 1 times [2020-04-18 06:27:14,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:27:14,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495795119] [2020-04-18 06:27:14,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:27:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:27:14,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 06:27:14,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495795119] [2020-04-18 06:27:14,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:27:14,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:27:14,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059087256] [2020-04-18 06:27:14,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:27:14,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:27:14,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:27:14,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:27:14,495 INFO L87 Difference]: Start difference. First operand 536 states and 1339 transitions. Second operand 7 states. [2020-04-18 06:27:14,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:27:14,741 INFO L93 Difference]: Finished difference Result 811 states and 2029 transitions. [2020-04-18 06:27:14,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 06:27:14,741 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-04-18 06:27:14,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:27:14,745 INFO L225 Difference]: With dead ends: 811 [2020-04-18 06:27:14,746 INFO L226 Difference]: Without dead ends: 536 [2020-04-18 06:27:14,746 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 06:27:14,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-04-18 06:27:14,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2020-04-18 06:27:14,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-04-18 06:27:14,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1332 transitions. [2020-04-18 06:27:14,770 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1332 transitions. Word has length 35 [2020-04-18 06:27:14,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:27:14,770 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 1332 transitions. [2020-04-18 06:27:14,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:27:14,771 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1332 transitions. [2020-04-18 06:27:14,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 06:27:14,773 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:27:14,774 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:27:14,776 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:27:14,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:27:14,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1557492323, now seen corresponding path program 2 times [2020-04-18 06:27:14,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:27:14,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251891493] [2020-04-18 06:27:14,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:27:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:27:14,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 06:27:14,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251891493] [2020-04-18 06:27:14,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:27:14,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 06:27:14,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951783519] [2020-04-18 06:27:14,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 06:27:14,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:27:14,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 06:27:14,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 06:27:14,946 INFO L87 Difference]: Start difference. First operand 536 states and 1332 transitions. Second operand 8 states. [2020-04-18 06:27:15,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:27:15,155 INFO L93 Difference]: Finished difference Result 746 states and 1845 transitions. [2020-04-18 06:27:15,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 06:27:15,155 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2020-04-18 06:27:15,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:27:15,158 INFO L225 Difference]: With dead ends: 746 [2020-04-18 06:27:15,158 INFO L226 Difference]: Without dead ends: 401 [2020-04-18 06:27:15,159 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 06:27:15,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-04-18 06:27:15,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2020-04-18 06:27:15,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-04-18 06:27:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 955 transitions. [2020-04-18 06:27:15,172 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 955 transitions. Word has length 35 [2020-04-18 06:27:15,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:27:15,172 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 955 transitions. [2020-04-18 06:27:15,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 06:27:15,172 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 955 transitions. [2020-04-18 06:27:15,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 06:27:15,174 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:27:15,174 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:27:15,174 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:27:15,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:27:15,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1552303459, now seen corresponding path program 1 times [2020-04-18 06:27:15,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:27:15,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214654206] [2020-04-18 06:27:15,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:27:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:27:15,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 06:27:15,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214654206] [2020-04-18 06:27:15,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:27:15,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:27:15,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588878245] [2020-04-18 06:27:15,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:27:15,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:27:15,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:27:15,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:27:15,303 INFO L87 Difference]: Start difference. First operand 401 states and 955 transitions. Second operand 7 states. [2020-04-18 06:27:15,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:27:15,476 INFO L93 Difference]: Finished difference Result 361 states and 853 transitions. [2020-04-18 06:27:15,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 06:27:15,477 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-04-18 06:27:15,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:27:15,478 INFO L225 Difference]: With dead ends: 361 [2020-04-18 06:27:15,478 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 06:27:15,478 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 06:27:15,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 06:27:15,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 06:27:15,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 06:27:15,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 06:27:15,480 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2020-04-18 06:27:15,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:27:15,481 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 06:27:15,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:27:15,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 06:27:15,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 06:27:15,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 06:27:15 BasicIcfg [2020-04-18 06:27:15,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 06:27:15,494 INFO L168 Benchmark]: Toolchain (without parser) took 4083.70 ms. Allocated memory was 145.2 MB in the beginning and 250.6 MB in the end (delta: 105.4 MB). Free memory was 101.4 MB in the beginning and 143.7 MB in the end (delta: -42.3 MB). Peak memory consumption was 63.1 MB. Max. memory is 7.1 GB. [2020-04-18 06:27:15,495 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 06:27:15,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.40 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 99.4 MB in the beginning and 160.2 MB in the end (delta: -60.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-04-18 06:27:15,503 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.19 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 158.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-18 06:27:15,504 INFO L168 Benchmark]: Boogie Preprocessor took 25.89 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 156.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 06:27:15,505 INFO L168 Benchmark]: RCFGBuilder took 497.40 ms. Allocated memory is still 202.9 MB. Free memory was 156.7 MB in the beginning and 136.5 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-04-18 06:27:15,506 INFO L168 Benchmark]: TraceAbstraction took 2859.05 ms. Allocated memory was 202.9 MB in the beginning and 250.6 MB in the end (delta: 47.7 MB). Free memory was 136.5 MB in the beginning and 143.7 MB in the end (delta: -7.2 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. [2020-04-18 06:27:15,517 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 628.40 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 99.4 MB in the beginning and 160.2 MB in the end (delta: -60.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.19 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 158.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.89 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 156.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 497.40 ms. Allocated memory is still 202.9 MB. Free memory was 156.7 MB in the beginning and 136.5 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2859.05 ms. Allocated memory was 202.9 MB in the beginning and 250.6 MB in the end (delta: 47.7 MB). Free memory was 136.5 MB in the beginning and 143.7 MB in the end (delta: -7.2 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 342 SDtfs, 533 SDslu, 1230 SDs, 0 SdLazy, 144 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1121occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 23855 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...