/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/safe009_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:32:29,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:32:29,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:32:29,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:32:29,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:32:29,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:32:29,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:32:29,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:32:29,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:32:29,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:32:29,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:32:29,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:32:29,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:32:29,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:32:29,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:32:29,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:32:29,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:32:29,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:32:29,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:32:29,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:32:29,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:32:29,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:32:29,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:32:29,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:32:29,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:32:29,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:32:29,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:32:29,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:32:29,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:32:29,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:32:29,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:32:29,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:32:29,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:32:29,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:32:29,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:32:29,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:32:29,236 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 [2019-12-19 04:32:29,256 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:32:29,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:32:29,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:32:29,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:32:29,258 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:32:29,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:32:29,258 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:32:29,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:32:29,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:32:29,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:32:29,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:32:29,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:32:29,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:32:29,261 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:32:29,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:32:29,261 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:32:29,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:32:29,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:32:29,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:32:29,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:32:29,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:32:29,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:32:29,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:32:29,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:32:29,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:32:29,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:32:29,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:32:29,264 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:32:29,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:32:29,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:32:29,527 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:32:29,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:32:29,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:32:29,547 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:32:29,548 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:32:29,549 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2019-12-19 04:32:29,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9a58ce1f/240e570669e7442683ec842a2b4aaa44/FLAG1f7da8da1 [2019-12-19 04:32:30,179 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:32:30,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2019-12-19 04:32:30,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9a58ce1f/240e570669e7442683ec842a2b4aaa44/FLAG1f7da8da1 [2019-12-19 04:32:30,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9a58ce1f/240e570669e7442683ec842a2b4aaa44 [2019-12-19 04:32:30,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:32:30,507 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:32:30,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:32:30,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:32:30,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:32:30,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:32:30" (1/1) ... [2019-12-19 04:32:30,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e69abf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:30, skipping insertion in model container [2019-12-19 04:32:30,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:32:30" (1/1) ... [2019-12-19 04:32:30,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:32:30,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:32:31,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:32:31,037 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:32:31,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:32:31,182 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:32:31,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:31 WrapperNode [2019-12-19 04:32:31,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:32:31,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:32:31,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:32:31,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:32:31,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:31" (1/1) ... [2019-12-19 04:32:31,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:31" (1/1) ... [2019-12-19 04:32:31,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:32:31,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:32:31,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:32:31,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:32:31,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:31" (1/1) ... [2019-12-19 04:32:31,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:31" (1/1) ... [2019-12-19 04:32:31,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:31" (1/1) ... [2019-12-19 04:32:31,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:31" (1/1) ... [2019-12-19 04:32:31,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:31" (1/1) ... [2019-12-19 04:32:31,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:31" (1/1) ... [2019-12-19 04:32:31,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:31" (1/1) ... [2019-12-19 04:32:31,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:32:31,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:32:31,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:32:31,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:32:31,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:31" (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 [2019-12-19 04:32:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:32:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:32:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:32:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:32:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:32:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:32:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:32:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:32:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:32:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:32:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:32:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:32:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:32:31,377 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:32:31,734 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:32:31,735 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:32:31,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:32:31 BoogieIcfgContainer [2019-12-19 04:32:31,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:32:31,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:32:31,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:32:31,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:32:31,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:32:30" (1/3) ... [2019-12-19 04:32:31,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ee9240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:32:31, skipping insertion in model container [2019-12-19 04:32:31,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:32:31" (2/3) ... [2019-12-19 04:32:31,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ee9240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:32:31, skipping insertion in model container [2019-12-19 04:32:31,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:32:31" (3/3) ... [2019-12-19 04:32:31,744 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2019-12-19 04:32:31,754 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:32:31,754 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:32:31,761 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:32:31,762 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:32:31,788 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,788 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,788 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,789 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,789 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,790 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,790 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,790 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,791 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,791 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,791 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,791 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,792 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,792 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,793 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,793 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,793 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,793 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,797 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,798 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,798 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,798 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,804 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,805 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,805 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,805 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,808 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,808 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,808 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,809 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:32:31,821 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:32:31,838 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:32:31,838 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:32:31,839 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:32:31,839 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:32:31,839 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:32:31,839 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:32:31,839 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:32:31,840 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:32:31,851 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 04:32:31,943 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 04:32:31,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 04:32:31,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:32:31,971 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:32:31,972 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, 1, 1, 1] [2019-12-19 04:32:31,972 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:32:31,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:32:31,980 INFO L82 PathProgramCache]: Analyzing trace with hash -2004494195, now seen corresponding path program 1 times [2019-12-19 04:32:31,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:32:31,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15153250] [2019-12-19 04:32:31,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:32:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:32:32,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:32:32,410 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15153250] [2019-12-19 04:32:32,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:32:32,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:32:32,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419214013] [2019-12-19 04:32:32,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:32:32,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:32:32,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:32:32,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:32:32,436 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 04:32:32,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:32:32,562 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 04:32:32,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:32:32,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 04:32:32,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:32:32,620 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 04:32:32,620 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 04:32:32,621 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:32:32,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 04:32:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 04:32:32,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 04:32:32,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 04:32:32,720 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 04:32:32,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:32:32,720 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 04:32:32,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:32:32,721 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 04:32:32,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:32:32,723 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:32:32,724 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, 1, 1, 1, 1] [2019-12-19 04:32:32,724 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:32:32,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:32:32,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1881606129, now seen corresponding path program 1 times [2019-12-19 04:32:32,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:32:32,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984633325] [2019-12-19 04:32:32,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:32:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:32:32,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:32:32,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984633325] [2019-12-19 04:32:32,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:32:32,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:32:32,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712885911] [2019-12-19 04:32:32,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:32:32,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:32:32,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:32:32,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:32:32,902 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 04:32:33,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:32:33,007 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 04:32:33,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:32:33,010 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 04:32:33,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:32:33,022 INFO L225 Difference]: With dead ends: 600 [2019-12-19 04:32:33,022 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 04:32:33,024 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:32:33,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 04:32:33,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 04:32:33,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 04:32:33,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 04:32:33,085 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 04:32:33,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:32:33,085 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 04:32:33,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:32:33,086 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 04:32:33,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:32:33,088 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:32:33,088 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, 1, 1, 1, 1, 1] [2019-12-19 04:32:33,088 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:32:33,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:32:33,089 INFO L82 PathProgramCache]: Analyzing trace with hash 60996499, now seen corresponding path program 1 times [2019-12-19 04:32:33,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:32:33,089 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89531798] [2019-12-19 04:32:33,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:32:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:32:33,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:32:33,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89531798] [2019-12-19 04:32:33,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:32:33,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:32:33,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416974928] [2019-12-19 04:32:33,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:32:33,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:32:33,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:32:33,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:32:33,258 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 04:32:33,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:32:33,384 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 04:32:33,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:32:33,384 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 04:32:33,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:32:33,388 INFO L225 Difference]: With dead ends: 402 [2019-12-19 04:32:33,388 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 04:32:33,388 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:32:33,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 04:32:33,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 04:32:33,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 04:32:33,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 04:32:33,405 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 04:32:33,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:32:33,405 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 04:32:33,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:32:33,406 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 04:32:33,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:32:33,408 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:32:33,408 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, 1, 1, 1, 1, 1, 1] [2019-12-19 04:32:33,409 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:32:33,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:32:33,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1085599532, now seen corresponding path program 1 times [2019-12-19 04:32:33,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:32:33,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591844924] [2019-12-19 04:32:33,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:32:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:32:33,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:32:33,553 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591844924] [2019-12-19 04:32:33,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:32:33,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:32:33,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892205485] [2019-12-19 04:32:33,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:32:33,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:32:33,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:32:33,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:32:33,559 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 6 states. [2019-12-19 04:32:33,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:32:33,667 INFO L93 Difference]: Finished difference Result 519 states and 1394 transitions. [2019-12-19 04:32:33,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:32:33,667 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:32:33,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:32:33,670 INFO L225 Difference]: With dead ends: 519 [2019-12-19 04:32:33,670 INFO L226 Difference]: Without dead ends: 336 [2019-12-19 04:32:33,671 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:32:33,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-12-19 04:32:33,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2019-12-19 04:32:33,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-12-19 04:32:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 881 transitions. [2019-12-19 04:32:33,683 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 881 transitions. Word has length 33 [2019-12-19 04:32:33,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:32:33,684 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 881 transitions. [2019-12-19 04:32:33,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:32:33,684 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 881 transitions. [2019-12-19 04:32:33,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:32:33,686 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:32:33,686 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, 1, 1, 1, 1, 1, 1] [2019-12-19 04:32:33,686 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:32:33,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:32:33,687 INFO L82 PathProgramCache]: Analyzing trace with hash 2070748178, now seen corresponding path program 2 times [2019-12-19 04:32:33,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:32:33,687 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695982230] [2019-12-19 04:32:33,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:32:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:32:33,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:32:33,834 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695982230] [2019-12-19 04:32:33,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:32:33,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:32:33,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170885462] [2019-12-19 04:32:33,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:32:33,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:32:33,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:32:33,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:32:33,836 INFO L87 Difference]: Start difference. First operand 336 states and 881 transitions. Second operand 8 states. [2019-12-19 04:32:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:32:34,031 INFO L93 Difference]: Finished difference Result 543 states and 1445 transitions. [2019-12-19 04:32:34,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:32:34,032 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-12-19 04:32:34,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:32:34,037 INFO L225 Difference]: With dead ends: 543 [2019-12-19 04:32:34,037 INFO L226 Difference]: Without dead ends: 309 [2019-12-19 04:32:34,037 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:32:34,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2019-12-19 04:32:34,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2019-12-19 04:32:34,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-12-19 04:32:34,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 815 transitions. [2019-12-19 04:32:34,047 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 815 transitions. Word has length 33 [2019-12-19 04:32:34,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:32:34,048 INFO L462 AbstractCegarLoop]: Abstraction has 309 states and 815 transitions. [2019-12-19 04:32:34,048 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:32:34,048 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 815 transitions. [2019-12-19 04:32:34,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:32:34,051 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:32:34,057 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, 1, 1, 1, 1, 1, 1] [2019-12-19 04:32:34,059 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:32:34,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:32:34,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1513115848, now seen corresponding path program 3 times [2019-12-19 04:32:34,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:32:34,061 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171915551] [2019-12-19 04:32:34,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:32:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:32:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:32:34,221 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171915551] [2019-12-19 04:32:34,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:32:34,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:32:34,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153047016] [2019-12-19 04:32:34,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:32:34,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:32:34,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:32:34,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:32:34,223 INFO L87 Difference]: Start difference. First operand 309 states and 815 transitions. Second operand 8 states. [2019-12-19 04:32:34,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:32:34,319 INFO L93 Difference]: Finished difference Result 255 states and 653 transitions. [2019-12-19 04:32:34,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:32:34,319 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-12-19 04:32:34,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:32:34,320 INFO L225 Difference]: With dead ends: 255 [2019-12-19 04:32:34,320 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:32:34,320 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:32:34,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:32:34,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:32:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:32:34,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:32:34,321 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 04:32:34,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:32:34,321 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:32:34,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:32:34,322 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:32:34,322 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:32:34,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:32:34 BasicIcfg [2019-12-19 04:32:34,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:32:34,330 INFO L168 Benchmark]: Toolchain (without parser) took 3822.69 ms. Allocated memory was 145.2 MB in the beginning and 251.7 MB in the end (delta: 106.4 MB). Free memory was 101.4 MB in the beginning and 177.8 MB in the end (delta: -76.4 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:32:34,331 INFO L168 Benchmark]: CDTParser took 1.20 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 04:32:34,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.00 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.0 MB in the beginning and 159.7 MB in the end (delta: -58.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:32:34,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.23 ms. Allocated memory is still 202.4 MB. Free memory was 159.7 MB in the beginning and 157.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:32:34,334 INFO L168 Benchmark]: Boogie Preprocessor took 38.46 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:32:34,335 INFO L168 Benchmark]: RCFGBuilder took 443.62 ms. Allocated memory is still 202.4 MB. Free memory was 155.8 MB in the beginning and 135.5 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:32:34,336 INFO L168 Benchmark]: TraceAbstraction took 2590.77 ms. Allocated memory was 202.4 MB in the beginning and 251.7 MB in the end (delta: 49.3 MB). Free memory was 135.5 MB in the beginning and 177.8 MB in the end (delta: -42.3 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:32:34,340 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.20 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 676.00 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.0 MB in the beginning and 159.7 MB in the end (delta: -58.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 69.23 ms. Allocated memory is still 202.4 MB. Free memory was 159.7 MB in the beginning and 157.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.46 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 443.62 ms. Allocated memory is still 202.4 MB. Free memory was 155.8 MB in the beginning and 135.5 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2590.77 ms. Allocated memory was 202.4 MB in the beginning and 251.7 MB in the end (delta: 49.3 MB). Free memory was 135.5 MB in the beginning and 177.8 MB in the end (delta: -42.3 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 282 SDtfs, 361 SDslu, 748 SDs, 0 SdLazy, 110 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 17306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...