/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/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 13:17:11,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 13:17:11,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 13:17:11,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 13:17:11,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 13:17:11,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 13:17:11,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 13:17:11,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 13:17:11,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 13:17:11,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 13:17:11,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 13:17:11,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 13:17:11,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 13:17:11,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 13:17:11,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 13:17:11,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 13:17:11,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 13:17:11,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 13:17:11,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 13:17:11,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 13:17:11,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 13:17:11,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 13:17:11,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 13:17:11,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 13:17:11,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 13:17:11,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 13:17:11,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 13:17:11,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 13:17:11,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 13:17:11,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 13:17:11,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 13:17:11,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 13:17:11,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 13:17:11,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 13:17:11,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 13:17:11,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 13:17:11,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 13:17:11,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 13:17:11,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 13:17:11,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 13:17:11,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 13:17:11,180 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 [2019-12-27 13:17:11,194 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 13:17:11,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 13:17:11,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 13:17:11,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 13:17:11,196 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 13:17:11,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 13:17:11,196 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 13:17:11,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 13:17:11,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 13:17:11,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 13:17:11,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 13:17:11,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 13:17:11,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 13:17:11,197 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 13:17:11,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 13:17:11,198 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 13:17:11,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 13:17:11,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 13:17:11,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 13:17:11,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 13:17:11,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 13:17:11,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 13:17:11,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 13:17:11,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 13:17:11,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 13:17:11,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 13:17:11,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 13:17:11,200 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 13:17:11,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 13:17:11,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 13:17:11,469 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 13:17:11,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 13:17:11,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 13:17:11,486 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 13:17:11,486 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 13:17:11,487 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2019-12-27 13:17:11,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ddb4c26a/b0769a07464c4ce698059130caac63f3/FLAG4dcfce177 [2019-12-27 13:17:12,114 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 13:17:12,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2019-12-27 13:17:12,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ddb4c26a/b0769a07464c4ce698059130caac63f3/FLAG4dcfce177 [2019-12-27 13:17:12,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ddb4c26a/b0769a07464c4ce698059130caac63f3 [2019-12-27 13:17:12,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 13:17:12,419 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 13:17:12,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 13:17:12,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 13:17:12,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 13:17:12,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:17:12" (1/1) ... [2019-12-27 13:17:12,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e7861d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:12, skipping insertion in model container [2019-12-27 13:17:12,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:17:12" (1/1) ... [2019-12-27 13:17:12,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 13:17:12,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 13:17:12,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:17:12,995 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 13:17:13,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:17:13,153 INFO L208 MainTranslator]: Completed translation [2019-12-27 13:17:13,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:13 WrapperNode [2019-12-27 13:17:13,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 13:17:13,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 13:17:13,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 13:17:13,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 13:17:13,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:13" (1/1) ... [2019-12-27 13:17:13,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:13" (1/1) ... [2019-12-27 13:17:13,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 13:17:13,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 13:17:13,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 13:17:13,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 13:17:13,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:13" (1/1) ... [2019-12-27 13:17:13,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:13" (1/1) ... [2019-12-27 13:17:13,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:13" (1/1) ... [2019-12-27 13:17:13,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:13" (1/1) ... [2019-12-27 13:17:13,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:13" (1/1) ... [2019-12-27 13:17:13,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:13" (1/1) ... [2019-12-27 13:17:13,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:13" (1/1) ... [2019-12-27 13:17:13,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 13:17:13,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 13:17:13,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 13:17:13,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 13:17:13,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 13:17:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 13:17:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 13:17:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 13:17:13,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 13:17:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 13:17:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 13:17:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 13:17:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 13:17:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 13:17:13,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 13:17:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 13:17:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 13:17:13,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 13:17:13,310 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 13:17:13,688 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 13:17:13,688 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 13:17:13,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:17:13 BoogieIcfgContainer [2019-12-27 13:17:13,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 13:17:13,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 13:17:13,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 13:17:13,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 13:17:13,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 01:17:12" (1/3) ... [2019-12-27 13:17:13,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2eff30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:17:13, skipping insertion in model container [2019-12-27 13:17:13,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:17:13" (2/3) ... [2019-12-27 13:17:13,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2eff30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:17:13, skipping insertion in model container [2019-12-27 13:17:13,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:17:13" (3/3) ... [2019-12-27 13:17:13,698 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2019-12-27 13:17:13,709 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 13:17:13,709 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 13:17:13,716 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 13:17:13,717 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 13:17:13,745 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,745 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,745 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,746 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,746 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,746 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,747 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,747 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,747 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,748 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,748 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,748 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,748 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,749 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,749 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,749 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,749 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,749 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,753 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,754 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,754 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,754 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,771 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,772 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,772 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,772 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,775 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,775 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,775 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,775 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:17:13,791 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 13:17:13,816 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 13:17:13,816 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 13:17:13,817 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 13:17:13,817 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 13:17:13,817 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 13:17:13,817 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 13:17:13,817 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 13:17:13,817 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 13:17:13,829 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-27 13:17:13,910 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-27 13:17:13,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-27 13:17:13,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-27 13:17:13,929 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:17:13,930 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] [2019-12-27 13:17:13,930 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:17:13,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:17:13,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1961534642, now seen corresponding path program 1 times [2019-12-27 13:17:13,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:17:13,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593154643] [2019-12-27 13:17:13,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:17:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:17:14,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:17:14,351 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593154643] [2019-12-27 13:17:14,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:17:14,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 13:17:14,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930135989] [2019-12-27 13:17:14,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 13:17:14,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:17:14,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 13:17:14,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 13:17:14,377 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-27 13:17:14,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:17:14,516 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-27 13:17:14,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 13:17:14,519 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-27 13:17:14,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:17:14,543 INFO L225 Difference]: With dead ends: 1294 [2019-12-27 13:17:14,543 INFO L226 Difference]: Without dead ends: 600 [2019-12-27 13:17:14,545 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 [2019-12-27 13:17:14,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-27 13:17:14,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-27 13:17:14,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-27 13:17:14,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-27 13:17:14,645 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-27 13:17:14,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:17:14,646 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-27 13:17:14,646 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 13:17:14,646 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-27 13:17:14,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 13:17:14,650 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:17:14,650 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] [2019-12-27 13:17:14,651 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:17:14,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:17:14,651 INFO L82 PathProgramCache]: Analyzing trace with hash 848017682, now seen corresponding path program 1 times [2019-12-27 13:17:14,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:17:14,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756885973] [2019-12-27 13:17:14,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:17:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:17:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:17:14,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756885973] [2019-12-27 13:17:14,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:17:14,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 13:17:14,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432673319] [2019-12-27 13:17:14,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 13:17:14,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:17:14,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 13:17:14,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 13:17:14,818 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-27 13:17:14,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:17:14,894 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-27 13:17:14,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 13:17:14,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-27 13:17:14,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:17:14,901 INFO L225 Difference]: With dead ends: 600 [2019-12-27 13:17:14,901 INFO L226 Difference]: Without dead ends: 537 [2019-12-27 13:17:14,902 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 [2019-12-27 13:17:14,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-27 13:17:14,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-27 13:17:14,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-27 13:17:14,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-27 13:17:14,947 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-27 13:17:14,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:17:14,947 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-27 13:17:14,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 13:17:14,947 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-27 13:17:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 13:17:14,950 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:17:14,950 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] [2019-12-27 13:17:14,950 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:17:14,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:17:14,951 INFO L82 PathProgramCache]: Analyzing trace with hash 177866388, now seen corresponding path program 1 times [2019-12-27 13:17:14,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:17:14,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406082484] [2019-12-27 13:17:14,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:17:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:17:15,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:17:15,127 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406082484] [2019-12-27 13:17:15,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:17:15,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 13:17:15,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493809974] [2019-12-27 13:17:15,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 13:17:15,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:17:15,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 13:17:15,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 13:17:15,130 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-27 13:17:15,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:17:15,220 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-27 13:17:15,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:17:15,221 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-27 13:17:15,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:17:15,224 INFO L225 Difference]: With dead ends: 402 [2019-12-27 13:17:15,224 INFO L226 Difference]: Without dead ends: 348 [2019-12-27 13:17:15,225 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 [2019-12-27 13:17:15,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-27 13:17:15,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-27 13:17:15,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-27 13:17:15,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-27 13:17:15,240 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-27 13:17:15,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:17:15,241 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-27 13:17:15,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 13:17:15,241 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-27 13:17:15,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 13:17:15,243 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:17:15,243 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] [2019-12-27 13:17:15,243 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:17:15,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:17:15,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1811476463, now seen corresponding path program 1 times [2019-12-27 13:17:15,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:17:15,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684025313] [2019-12-27 13:17:15,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:17:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:17:15,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:17:15,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684025313] [2019-12-27 13:17:15,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:17:15,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 13:17:15,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915221912] [2019-12-27 13:17:15,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 13:17:15,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:17:15,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 13:17:15,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 13:17:15,408 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 8 states. [2019-12-27 13:17:15,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:17:15,642 INFO L93 Difference]: Finished difference Result 681 states and 1853 transitions. [2019-12-27 13:17:15,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-27 13:17:15,643 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-12-27 13:17:15,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:17:15,646 INFO L225 Difference]: With dead ends: 681 [2019-12-27 13:17:15,646 INFO L226 Difference]: Without dead ends: 327 [2019-12-27 13:17:15,646 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-12-27 13:17:15,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-12-27 13:17:15,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2019-12-27 13:17:15,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2019-12-27 13:17:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 857 transitions. [2019-12-27 13:17:15,660 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 857 transitions. Word has length 33 [2019-12-27 13:17:15,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:17:15,661 INFO L462 AbstractCegarLoop]: Abstraction has 327 states and 857 transitions. [2019-12-27 13:17:15,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 13:17:15,661 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 857 transitions. [2019-12-27 13:17:15,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 13:17:15,663 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:17:15,663 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] [2019-12-27 13:17:15,663 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:17:15,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:17:15,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1498342187, now seen corresponding path program 2 times [2019-12-27 13:17:15,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:17:15,664 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601850632] [2019-12-27 13:17:15,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:17:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:17:15,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:17:15,835 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601850632] [2019-12-27 13:17:15,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:17:15,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 13:17:15,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011349065] [2019-12-27 13:17:15,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 13:17:15,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:17:15,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 13:17:15,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:17:15,838 INFO L87 Difference]: Start difference. First operand 327 states and 857 transitions. Second operand 7 states. [2019-12-27 13:17:15,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:17:15,943 INFO L93 Difference]: Finished difference Result 534 states and 1421 transitions. [2019-12-27 13:17:15,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:17:15,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-27 13:17:15,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:17:15,946 INFO L225 Difference]: With dead ends: 534 [2019-12-27 13:17:15,947 INFO L226 Difference]: Without dead ends: 300 [2019-12-27 13:17:15,947 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-27 13:17:15,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-12-27 13:17:15,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2019-12-27 13:17:15,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2019-12-27 13:17:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 791 transitions. [2019-12-27 13:17:15,957 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 791 transitions. Word has length 33 [2019-12-27 13:17:15,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:17:15,958 INFO L462 AbstractCegarLoop]: Abstraction has 300 states and 791 transitions. [2019-12-27 13:17:15,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 13:17:15,958 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 791 transitions. [2019-12-27 13:17:15,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 13:17:15,959 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:17:15,959 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] [2019-12-27 13:17:15,959 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:17:15,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:17:15,960 INFO L82 PathProgramCache]: Analyzing trace with hash -960486609, now seen corresponding path program 3 times [2019-12-27 13:17:15,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:17:15,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296835086] [2019-12-27 13:17:15,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:17:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:17:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:17:16,080 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296835086] [2019-12-27 13:17:16,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:17:16,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 13:17:16,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235041920] [2019-12-27 13:17:16,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 13:17:16,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:17:16,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 13:17:16,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:17:16,083 INFO L87 Difference]: Start difference. First operand 300 states and 791 transitions. Second operand 7 states. [2019-12-27 13:17:16,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:17:16,178 INFO L93 Difference]: Finished difference Result 246 states and 629 transitions. [2019-12-27 13:17:16,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:17:16,178 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-27 13:17:16,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:17:16,179 INFO L225 Difference]: With dead ends: 246 [2019-12-27 13:17:16,179 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 13:17:16,180 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-27 13:17:16,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 13:17:16,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 13:17:16,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 13:17:16,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 13:17:16,181 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-27 13:17:16,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:17:16,181 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 13:17:16,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 13:17:16,181 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 13:17:16,182 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 13:17:16,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 01:17:16 BasicIcfg [2019-12-27 13:17:16,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 13:17:16,195 INFO L168 Benchmark]: Toolchain (without parser) took 3773.37 ms. Allocated memory was 146.8 MB in the beginning and 246.9 MB in the end (delta: 100.1 MB). Free memory was 102.8 MB in the beginning and 151.5 MB in the end (delta: -48.7 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. [2019-12-27 13:17:16,196 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 13:17:16,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.49 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 102.6 MB in the beginning and 162.2 MB in the end (delta: -59.7 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-12-27 13:17:16,204 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.51 ms. Allocated memory is still 205.0 MB. Free memory was 161.6 MB in the beginning and 159.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 13:17:16,204 INFO L168 Benchmark]: Boogie Preprocessor took 25.97 ms. Allocated memory is still 205.0 MB. Free memory was 159.7 MB in the beginning and 158.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 13:17:16,205 INFO L168 Benchmark]: RCFGBuilder took 458.42 ms. Allocated memory is still 205.0 MB. Free memory was 158.4 MB in the beginning and 138.4 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 13:17:16,207 INFO L168 Benchmark]: TraceAbstraction took 2499.93 ms. Allocated memory was 205.0 MB in the beginning and 246.9 MB in the end (delta: 41.9 MB). Free memory was 137.7 MB in the beginning and 151.5 MB in the end (delta: -13.7 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2019-12-27 13:17:16,221 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.49 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 102.6 MB in the beginning and 162.2 MB in the end (delta: -59.7 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.51 ms. Allocated memory is still 205.0 MB. Free memory was 161.6 MB in the beginning and 159.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.97 ms. Allocated memory is still 205.0 MB. Free memory was 159.7 MB in the beginning and 158.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 458.42 ms. Allocated memory is still 205.0 MB. Free memory was 158.4 MB in the beginning and 138.4 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2499.93 ms. Allocated memory was 205.0 MB in the beginning and 246.9 MB in the end (delta: 41.9 MB). Free memory was 137.7 MB in the beginning and 151.5 MB in the end (delta: -13.7 MB). Peak memory consumption was 28.2 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: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 277 SDtfs, 439 SDslu, 738 SDs, 0 SdLazy, 115 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 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, 17818 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...