/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-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 18:36:32,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 18:36:32,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 18:36:32,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 18:36:32,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 18:36:32,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 18:36:32,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 18:36:32,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 18:36:32,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 18:36:32,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 18:36:32,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 18:36:32,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 18:36:32,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 18:36:32,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 18:36:32,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 18:36:32,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 18:36:32,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 18:36:32,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 18:36:32,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 18:36:32,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 18:36:32,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 18:36:32,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 18:36:32,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 18:36:32,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 18:36:32,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 18:36:32,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 18:36:32,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 18:36:32,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 18:36:32,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 18:36:32,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 18:36:32,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 18:36:32,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 18:36:32,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 18:36:32,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 18:36:32,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 18:36:32,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 18:36:32,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 18:36:32,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 18:36:32,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 18:36:32,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 18:36:32,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 18:36:32,287 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-SemanticLbe.epf [2019-12-18 18:36:32,308 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 18:36:32,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 18:36:32,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 18:36:32,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 18:36:32,310 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 18:36:32,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 18:36:32,310 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 18:36:32,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 18:36:32,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 18:36:32,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 18:36:32,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 18:36:32,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 18:36:32,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 18:36:32,313 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 18:36:32,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 18:36:32,313 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 18:36:32,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 18:36:32,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 18:36:32,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 18:36:32,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 18:36:32,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 18:36:32,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:36:32,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 18:36:32,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 18:36:32,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 18:36:32,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 18:36:32,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 18:36:32,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 18:36:32,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 18:36:32,585 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 18:36:32,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 18:36:32,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 18:36:32,608 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 18:36:32,609 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 18:36:32,609 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2019-12-18 18:36:32,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe57fc30f/cef4106f072149beaff7677dd74d80b2/FLAG3e8f307c6 [2019-12-18 18:36:33,268 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 18:36:33,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2019-12-18 18:36:33,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe57fc30f/cef4106f072149beaff7677dd74d80b2/FLAG3e8f307c6 [2019-12-18 18:36:33,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe57fc30f/cef4106f072149beaff7677dd74d80b2 [2019-12-18 18:36:33,551 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 18:36:33,552 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 18:36:33,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 18:36:33,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 18:36:33,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 18:36:33,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:36:33" (1/1) ... [2019-12-18 18:36:33,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@123cbba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:33, skipping insertion in model container [2019-12-18 18:36:33,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:36:33" (1/1) ... [2019-12-18 18:36:33,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 18:36:33,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 18:36:34,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:36:34,043 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 18:36:34,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:36:34,183 INFO L208 MainTranslator]: Completed translation [2019-12-18 18:36:34,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:34 WrapperNode [2019-12-18 18:36:34,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 18:36:34,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 18:36:34,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 18:36:34,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 18:36:34,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:34" (1/1) ... [2019-12-18 18:36:34,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:34" (1/1) ... [2019-12-18 18:36:34,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 18:36:34,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 18:36:34,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 18:36:34,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 18:36:34,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:34" (1/1) ... [2019-12-18 18:36:34,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:34" (1/1) ... [2019-12-18 18:36:34,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:34" (1/1) ... [2019-12-18 18:36:34,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:34" (1/1) ... [2019-12-18 18:36:34,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:34" (1/1) ... [2019-12-18 18:36:34,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:34" (1/1) ... [2019-12-18 18:36:34,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:34" (1/1) ... [2019-12-18 18:36:34,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 18:36:34,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 18:36:34,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 18:36:34,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 18:36:34,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:36:34,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 18:36:34,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 18:36:34,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 18:36:34,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 18:36:34,314 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 18:36:34,315 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 18:36:34,316 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 18:36:34,316 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 18:36:34,317 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 18:36:34,317 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 18:36:34,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 18:36:34,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 18:36:34,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 18:36:34,321 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 18:36:34,672 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 18:36:34,672 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 18:36:34,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:36:34 BoogieIcfgContainer [2019-12-18 18:36:34,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 18:36:34,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 18:36:34,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 18:36:34,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 18:36:34,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:36:33" (1/3) ... [2019-12-18 18:36:34,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27709dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:36:34, skipping insertion in model container [2019-12-18 18:36:34,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:36:34" (2/3) ... [2019-12-18 18:36:34,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27709dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:36:34, skipping insertion in model container [2019-12-18 18:36:34,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:36:34" (3/3) ... [2019-12-18 18:36:34,681 INFO L109 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2019-12-18 18:36:34,690 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 18:36:34,690 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 18:36:34,697 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 18:36:34,698 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 18:36:34,721 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,722 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,722 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,722 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,723 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,723 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,723 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,724 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,724 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,724 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,724 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,725 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,725 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,725 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,725 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,726 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,726 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,726 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,730 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,730 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,731 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,731 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,740 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,741 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,741 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,742 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,744 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,744 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,744 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,745 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:36:34,758 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 18:36:34,775 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 18:36:34,775 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 18:36:34,776 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 18:36:34,776 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 18:36:34,776 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 18:36:34,776 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 18:36:34,776 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 18:36:34,777 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 18:36:34,791 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 18:36:34,793 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 18:36:34,834 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 18:36:34,835 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:36:34,847 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:36:34,850 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 18:36:34,876 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 18:36:34,876 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:36:34,877 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:36:34,879 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 18:36:34,880 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 18:36:36,255 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 18:36:36,427 INFO L206 etLargeBlockEncoding]: Checked pairs total: 479 [2019-12-18 18:36:36,427 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-18 18:36:36,432 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 18:36:36,442 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 18:36:36,444 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 18:36:36,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 18:36:36,451 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:36:36,452 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:36:36,453 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:36:36,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:36:36,459 INFO L82 PathProgramCache]: Analyzing trace with hash -196435608, now seen corresponding path program 1 times [2019-12-18 18:36:36,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:36:36,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360808672] [2019-12-18 18:36:36,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:36:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:36:36,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:36:36,702 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360808672] [2019-12-18 18:36:36,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:36:36,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:36:36,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660779693] [2019-12-18 18:36:36,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:36:36,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:36:36,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:36:36,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:36:36,730 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 18:36:36,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:36:36,770 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-18 18:36:36,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:36:36,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 18:36:36,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:36:36,802 INFO L225 Difference]: With dead ends: 44 [2019-12-18 18:36:36,802 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 18:36:36,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:36:36,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 18:36:36,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 18:36:36,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 18:36:36,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 18:36:36,858 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 18:36:36,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:36:36,859 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 18:36:36,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:36:36,859 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 18:36:36,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:36:36,861 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:36:36,862 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:36:36,862 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:36:36,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:36:36,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1074136562, now seen corresponding path program 1 times [2019-12-18 18:36:36,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:36:36,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74290093] [2019-12-18 18:36:36,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:36:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:36:36,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:36:36,990 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74290093] [2019-12-18 18:36:36,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:36:36,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:36:36,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11967720] [2019-12-18 18:36:36,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:36:36,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:36:36,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:36:36,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:36:36,995 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 18:36:37,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:36:37,004 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-18 18:36:37,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:36:37,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 18:36:37,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:36:37,006 INFO L225 Difference]: With dead ends: 34 [2019-12-18 18:36:37,006 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 18:36:37,007 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:36:37,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 18:36:37,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 18:36:37,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 18:36:37,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 18:36:37,018 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-18 18:36:37,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:36:37,020 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 18:36:37,020 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:36:37,020 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 18:36:37,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:36:37,021 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:36:37,021 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:36:37,022 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:36:37,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:36:37,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1794448346, now seen corresponding path program 1 times [2019-12-18 18:36:37,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:36:37,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291339163] [2019-12-18 18:36:37,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:36:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:36:37,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:36:37,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291339163] [2019-12-18 18:36:37,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:36:37,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:36:37,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530366302] [2019-12-18 18:36:37,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:36:37,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:36:37,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:36:37,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:36:37,086 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 18:36:37,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:36:37,096 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 18:36:37,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:36:37,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 18:36:37,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:36:37,098 INFO L225 Difference]: With dead ends: 36 [2019-12-18 18:36:37,098 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 18:36:37,098 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:36:37,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 18:36:37,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 18:36:37,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 18:36:37,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 18:36:37,102 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 18:36:37,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:36:37,102 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 18:36:37,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:36:37,102 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 18:36:37,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:36:37,103 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:36:37,103 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:36:37,103 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:36:37,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:36:37,104 INFO L82 PathProgramCache]: Analyzing trace with hash 206758562, now seen corresponding path program 1 times [2019-12-18 18:36:37,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:36:37,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751717797] [2019-12-18 18:36:37,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:36:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:36:37,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:36:37,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751717797] [2019-12-18 18:36:37,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:36:37,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:36:37,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664641299] [2019-12-18 18:36:37,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:36:37,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:36:37,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:36:37,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:36:37,159 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-18 18:36:37,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:36:37,192 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 18:36:37,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:36:37,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 18:36:37,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:36:37,193 INFO L225 Difference]: With dead ends: 25 [2019-12-18 18:36:37,193 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 18:36:37,194 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 18:36:37,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 18:36:37,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 18:36:37,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 18:36:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 18:36:37,197 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 18:36:37,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:36:37,197 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 18:36:37,197 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:36:37,197 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 18:36:37,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 18:36:37,198 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:36:37,198 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:36:37,198 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:36:37,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:36:37,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1297271908, now seen corresponding path program 1 times [2019-12-18 18:36:37,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:36:37,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302030740] [2019-12-18 18:36:37,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:36:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:36:37,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:36:37,249 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302030740] [2019-12-18 18:36:37,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:36:37,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 18:36:37,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836809210] [2019-12-18 18:36:37,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:36:37,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:36:37,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:36:37,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:36:37,251 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 18:36:37,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:36:37,267 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 18:36:37,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:36:37,267 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 18:36:37,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:36:37,267 INFO L225 Difference]: With dead ends: 16 [2019-12-18 18:36:37,267 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 18:36:37,268 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 18:36:37,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 18:36:37,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 18:36:37,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 18:36:37,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 18:36:37,269 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 18:36:37,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:36:37,269 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 18:36:37,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:36:37,270 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 18:36:37,270 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 18:36:37,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 06:36:37 BasicIcfg [2019-12-18 18:36:37,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 18:36:37,275 INFO L168 Benchmark]: Toolchain (without parser) took 3723.12 ms. Allocated memory was 146.3 MB in the beginning and 245.9 MB in the end (delta: 99.6 MB). Free memory was 101.7 MB in the beginning and 143.4 MB in the end (delta: -41.7 MB). Peak memory consumption was 57.9 MB. Max. memory is 7.1 GB. [2019-12-18 18:36:37,276 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 18:36:37,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.89 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 160.9 MB in the end (delta: -59.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:36:37,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.81 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:36:37,279 INFO L168 Benchmark]: Boogie Preprocessor took 26.12 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:36:37,280 INFO L168 Benchmark]: RCFGBuilder took 415.51 ms. Allocated memory is still 203.9 MB. Free memory was 156.9 MB in the beginning and 137.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-12-18 18:36:37,281 INFO L168 Benchmark]: TraceAbstraction took 2598.82 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 136.5 MB in the beginning and 143.4 MB in the end (delta: -6.9 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:36:37,285 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 630.89 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 160.9 MB in the end (delta: -59.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.81 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.12 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 415.51 ms. Allocated memory is still 203.9 MB. Free memory was 156.9 MB in the beginning and 137.2 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2598.82 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 136.5 MB in the beginning and 143.4 MB in the end (delta: -6.9 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 229 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 479 CheckedPairsTotal, 46 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 17 SDslu, 41 SDs, 0 SdLazy, 19 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 878 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...