/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:05:14,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:05:14,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:05:14,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:05:14,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:05:14,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:05:14,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:05:14,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:05:14,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:05:14,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:05:14,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:05:14,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:05:14,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:05:14,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:05:14,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:05:14,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:05:14,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:05:14,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:05:14,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:05:14,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:05:14,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:05:14,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:05:14,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:05:14,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:05:14,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:05:14,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:05:14,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:05:14,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:05:14,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:05:14,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:05:14,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:05:14,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:05:14,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:05:14,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:05:14,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:05:14,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:05:14,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:05:14,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:05:14,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:05:14,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:05:14,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:05:14,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:05:14,255 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:05:14,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:05:14,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:05:14,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:05:14,259 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:05:14,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:05:14,260 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:05:14,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:05:14,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:05:14,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:05:14,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:05:14,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:05:14,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:05:14,262 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:05:14,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:05:14,263 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:05:14,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:05:14,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:05:14,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:05:14,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:05:14,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:05:14,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:05:14,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:05:14,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:05:14,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:05:14,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:05:14,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:05:14,265 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:05:14,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:05:14,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:05:14,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:05:14,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:05:14,580 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:05:14,580 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:05:14,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2020-10-21 23:05:14,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/789e3b852/e87eaa2b7a4f4751bc7bf97091952989/FLAGf41f60b59 [2020-10-21 23:05:15,179 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:05:15,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2020-10-21 23:05:15,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/789e3b852/e87eaa2b7a4f4751bc7bf97091952989/FLAGf41f60b59 [2020-10-21 23:05:15,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/789e3b852/e87eaa2b7a4f4751bc7bf97091952989 [2020-10-21 23:05:15,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:05:15,490 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:05:15,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:05:15,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:05:15,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:05:15,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:05:15" (1/1) ... [2020-10-21 23:05:15,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aedcfc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:15, skipping insertion in model container [2020-10-21 23:05:15,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:05:15" (1/1) ... [2020-10-21 23:05:15,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:05:15,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:05:16,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:05:16,081 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:05:16,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:05:16,224 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:05:16,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:16 WrapperNode [2020-10-21 23:05:16,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:05:16,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:05:16,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:05:16,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:05:16,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:16" (1/1) ... [2020-10-21 23:05:16,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:16" (1/1) ... [2020-10-21 23:05:16,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:05:16,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:05:16,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:05:16,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:05:16,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:16" (1/1) ... [2020-10-21 23:05:16,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:16" (1/1) ... [2020-10-21 23:05:16,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:16" (1/1) ... [2020-10-21 23:05:16,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:16" (1/1) ... [2020-10-21 23:05:16,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:16" (1/1) ... [2020-10-21 23:05:16,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:16" (1/1) ... [2020-10-21 23:05:16,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:16" (1/1) ... [2020-10-21 23:05:16,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:05:16,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:05:16,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:05:16,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:05:16,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:05:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 23:05:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 23:05:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 23:05:16,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 23:05:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 23:05:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 23:05:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:05:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:05:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:05:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:05:16,373 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:05:16,766 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:05:16,766 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 23:05:16,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:05:16 BoogieIcfgContainer [2020-10-21 23:05:16,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:05:16,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:05:16,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:05:16,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:05:16,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:05:15" (1/3) ... [2020-10-21 23:05:16,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d316b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:05:16, skipping insertion in model container [2020-10-21 23:05:16,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:05:16" (2/3) ... [2020-10-21 23:05:16,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d316b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:05:16, skipping insertion in model container [2020-10-21 23:05:16,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:05:16" (3/3) ... [2020-10-21 23:05:16,778 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2020-10-21 23:05:16,789 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:05:16,789 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:05:16,797 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:05:16,798 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:05:16,827 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,828 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,828 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,828 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,830 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,830 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,830 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,830 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,832 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,832 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,833 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,842 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,842 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,842 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,849 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,849 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,850 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,850 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,852 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,852 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:05:16,855 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:05:16,868 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 23:05:16,888 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:05:16,889 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:05:16,889 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:05:16,889 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:05:16,889 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:05:16,889 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:05:16,890 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:05:16,890 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:05:16,902 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:05:16,902 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 23:05:16,904 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 23:05:16,906 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-21 23:05:16,949 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-21 23:05:16,949 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:05:16,954 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 23:05:16,958 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 23:05:18,730 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-21 23:05:18,841 INFO L131 LiptonReduction]: Checked pairs total: 3181 [2020-10-21 23:05:18,841 INFO L133 LiptonReduction]: Total number of compositions: 74 [2020-10-21 23:05:18,848 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-21 23:05:18,874 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-21 23:05:18,876 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-21 23:05:18,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 23:05:18,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:05:18,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:05:18,886 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:05:18,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:05:18,892 INFO L82 PathProgramCache]: Analyzing trace with hash 2101373786, now seen corresponding path program 1 times [2020-10-21 23:05:18,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:05:18,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331206349] [2020-10-21 23:05:18,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:05:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:05:19,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:05:19,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331206349] [2020-10-21 23:05:19,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:05:19,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:05:19,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983762569] [2020-10-21 23:05:19,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:05:19,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:05:19,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:05:19,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:05:19,175 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-21 23:05:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:05:19,222 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-21 23:05:19,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:05:19,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 23:05:19,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:05:19,240 INFO L225 Difference]: With dead ends: 290 [2020-10-21 23:05:19,240 INFO L226 Difference]: Without dead ends: 226 [2020-10-21 23:05:19,242 INFO L677 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 [2020-10-21 23:05:19,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-21 23:05:19,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-21 23:05:19,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-21 23:05:19,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-21 23:05:19,310 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-21 23:05:19,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:05:19,311 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-21 23:05:19,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:05:19,311 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-21 23:05:19,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 23:05:19,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:05:19,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:05:19,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:05:19,314 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:05:19,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:05:19,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1569724536, now seen corresponding path program 1 times [2020-10-21 23:05:19,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:05:19,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177996877] [2020-10-21 23:05:19,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:05:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:05:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:05:19,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177996877] [2020-10-21 23:05:19,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:05:19,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:05:19,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821680906] [2020-10-21 23:05:19,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:05:19,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:05:19,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:05:19,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:05:19,416 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-21 23:05:19,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:05:19,451 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-10-21 23:05:19,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:05:19,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-21 23:05:19,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:05:19,459 INFO L225 Difference]: With dead ends: 214 [2020-10-21 23:05:19,459 INFO L226 Difference]: Without dead ends: 214 [2020-10-21 23:05:19,460 INFO L677 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 [2020-10-21 23:05:19,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-21 23:05:19,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-21 23:05:19,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-21 23:05:19,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-10-21 23:05:19,497 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-10-21 23:05:19,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:05:19,499 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-10-21 23:05:19,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:05:19,499 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-10-21 23:05:19,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 23:05:19,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:05:19,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:05:19,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:05:19,502 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:05:19,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:05:19,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1416819129, now seen corresponding path program 1 times [2020-10-21 23:05:19,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:05:19,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524191850] [2020-10-21 23:05:19,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:05:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:05:19,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:05:19,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524191850] [2020-10-21 23:05:19,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:05:19,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:05:19,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817674846] [2020-10-21 23:05:19,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:05:19,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:05:19,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:05:19,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:05:19,575 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states. [2020-10-21 23:05:19,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:05:19,597 INFO L93 Difference]: Finished difference Result 240 states and 627 transitions. [2020-10-21 23:05:19,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:05:19,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-21 23:05:19,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:05:19,600 INFO L225 Difference]: With dead ends: 240 [2020-10-21 23:05:19,600 INFO L226 Difference]: Without dead ends: 144 [2020-10-21 23:05:19,600 INFO L677 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 [2020-10-21 23:05:19,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-21 23:05:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-21 23:05:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-21 23:05:19,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-10-21 23:05:19,610 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 10 [2020-10-21 23:05:19,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:05:19,611 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-10-21 23:05:19,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:05:19,611 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-10-21 23:05:19,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:05:19,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:05:19,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:05:19,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:05:19,613 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:05:19,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:05:19,613 INFO L82 PathProgramCache]: Analyzing trace with hash 799592622, now seen corresponding path program 1 times [2020-10-21 23:05:19,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:05:19,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382861662] [2020-10-21 23:05:19,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:05:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:05:19,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:05:19,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382861662] [2020-10-21 23:05:19,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:05:19,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:05:19,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072447146] [2020-10-21 23:05:19,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:05:19,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:05:19,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:05:19,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:05:19,688 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 4 states. [2020-10-21 23:05:19,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:05:19,705 INFO L93 Difference]: Finished difference Result 182 states and 430 transitions. [2020-10-21 23:05:19,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:05:19,705 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 23:05:19,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:05:19,707 INFO L225 Difference]: With dead ends: 182 [2020-10-21 23:05:19,707 INFO L226 Difference]: Without dead ends: 86 [2020-10-21 23:05:19,707 INFO L677 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 [2020-10-21 23:05:19,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-21 23:05:19,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-21 23:05:19,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-21 23:05:19,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 186 transitions. [2020-10-21 23:05:19,713 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 186 transitions. Word has length 12 [2020-10-21 23:05:19,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:05:19,713 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 186 transitions. [2020-10-21 23:05:19,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:05:19,714 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 186 transitions. [2020-10-21 23:05:19,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 23:05:19,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:05:19,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:05:19,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:05:19,715 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:05:19,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:05:19,716 INFO L82 PathProgramCache]: Analyzing trace with hash -492629862, now seen corresponding path program 1 times [2020-10-21 23:05:19,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:05:19,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844191306] [2020-10-21 23:05:19,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:05:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:05:19,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:05:19,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844191306] [2020-10-21 23:05:19,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:05:19,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:05:19,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376479789] [2020-10-21 23:05:19,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:05:19,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:05:19,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:05:19,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:05:19,815 INFO L87 Difference]: Start difference. First operand 86 states and 186 transitions. Second operand 4 states. [2020-10-21 23:05:19,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:05:19,844 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-10-21 23:05:19,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:05:19,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-21 23:05:19,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:05:19,845 INFO L225 Difference]: With dead ends: 99 [2020-10-21 23:05:19,845 INFO L226 Difference]: Without dead ends: 77 [2020-10-21 23:05:19,846 INFO L677 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 [2020-10-21 23:05:19,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-21 23:05:19,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-21 23:05:19,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-21 23:05:19,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 156 transitions. [2020-10-21 23:05:19,851 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 156 transitions. Word has length 13 [2020-10-21 23:05:19,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:05:19,851 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 156 transitions. [2020-10-21 23:05:19,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:05:19,851 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 156 transitions. [2020-10-21 23:05:19,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 23:05:19,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:05:19,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:05:19,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:05:19,853 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:05:19,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:05:19,853 INFO L82 PathProgramCache]: Analyzing trace with hash 430385268, now seen corresponding path program 1 times [2020-10-21 23:05:19,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:05:19,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016213023] [2020-10-21 23:05:19,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:05:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:05:19,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:05:19,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016213023] [2020-10-21 23:05:19,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:05:19,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:05:19,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966171470] [2020-10-21 23:05:19,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:05:19,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:05:19,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:05:19,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:05:19,941 INFO L87 Difference]: Start difference. First operand 77 states and 156 transitions. Second operand 5 states. [2020-10-21 23:05:19,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:05:19,979 INFO L93 Difference]: Finished difference Result 78 states and 146 transitions. [2020-10-21 23:05:19,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 23:05:19,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-21 23:05:19,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:05:19,980 INFO L225 Difference]: With dead ends: 78 [2020-10-21 23:05:19,981 INFO L226 Difference]: Without dead ends: 63 [2020-10-21 23:05:19,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:05:19,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-21 23:05:19,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-21 23:05:19,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-21 23:05:19,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 116 transitions. [2020-10-21 23:05:19,985 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 116 transitions. Word has length 14 [2020-10-21 23:05:19,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:05:19,985 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 116 transitions. [2020-10-21 23:05:19,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:05:19,986 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 116 transitions. [2020-10-21 23:05:19,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 23:05:19,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:05:19,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:05:19,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 23:05:19,987 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:05:19,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:05:19,987 INFO L82 PathProgramCache]: Analyzing trace with hash 493445752, now seen corresponding path program 1 times [2020-10-21 23:05:19,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:05:19,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827552056] [2020-10-21 23:05:19,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:05:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:05:20,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:05:20,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827552056] [2020-10-21 23:05:20,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:05:20,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:05:20,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124572672] [2020-10-21 23:05:20,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 23:05:20,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:05:20,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 23:05:20,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:05:20,053 INFO L87 Difference]: Start difference. First operand 63 states and 116 transitions. Second operand 6 states. [2020-10-21 23:05:20,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:05:20,099 INFO L93 Difference]: Finished difference Result 60 states and 108 transitions. [2020-10-21 23:05:20,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:05:20,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-21 23:05:20,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:05:20,101 INFO L225 Difference]: With dead ends: 60 [2020-10-21 23:05:20,101 INFO L226 Difference]: Without dead ends: 54 [2020-10-21 23:05:20,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:05:20,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-21 23:05:20,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-21 23:05:20,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-21 23:05:20,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-10-21 23:05:20,104 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 15 [2020-10-21 23:05:20,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:05:20,104 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-10-21 23:05:20,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 23:05:20,105 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-10-21 23:05:20,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 23:05:20,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:05:20,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:05:20,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:05:20,106 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:05:20,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:05:20,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1724594669, now seen corresponding path program 1 times [2020-10-21 23:05:20,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:05:20,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015257489] [2020-10-21 23:05:20,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:05:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:05:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:05:20,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015257489] [2020-10-21 23:05:20,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:05:20,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:05:20,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358480201] [2020-10-21 23:05:20,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:05:20,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:05:20,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:05:20,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:05:20,145 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 3 states. [2020-10-21 23:05:20,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:05:20,150 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2020-10-21 23:05:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:05:20,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-21 23:05:20,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:05:20,151 INFO L225 Difference]: With dead ends: 53 [2020-10-21 23:05:20,151 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:05:20,152 INFO L677 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 [2020-10-21 23:05:20,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:05:20,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:05:20,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:05:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:05:20,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-21 23:05:20,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:05:20,153 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:05:20,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:05:20,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:05:20,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:05:20,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 23:05:20,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:05:20 BasicIcfg [2020-10-21 23:05:20,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:05:20,165 INFO L168 Benchmark]: Toolchain (without parser) took 4680.52 ms. Allocated memory was 140.5 MB in the beginning and 244.8 MB in the end (delta: 104.3 MB). Free memory was 100.9 MB in the beginning and 109.9 MB in the end (delta: -9.0 MB). Peak memory consumption was 95.4 MB. Max. memory is 7.1 GB. [2020-10-21 23:05:20,170 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 23:05:20,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.77 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 99.9 MB in the beginning and 158.1 MB in the end (delta: -58.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-21 23:05:20,172 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.45 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 155.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-21 23:05:20,172 INFO L168 Benchmark]: Boogie Preprocessor took 26.04 ms. Allocated memory is still 202.9 MB. Free memory was 155.5 MB in the beginning and 154.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-21 23:05:20,174 INFO L168 Benchmark]: RCFGBuilder took 470.29 ms. Allocated memory is still 202.9 MB. Free memory was 154.2 MB in the beginning and 129.7 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-10-21 23:05:20,175 INFO L168 Benchmark]: TraceAbstraction took 3392.55 ms. Allocated memory was 202.9 MB in the beginning and 244.8 MB in the end (delta: 41.9 MB). Free memory was 129.7 MB in the beginning and 109.9 MB in the end (delta: 19.8 MB). Peak memory consumption was 61.7 MB. Max. memory is 7.1 GB. [2020-10-21 23:05:20,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.77 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 99.9 MB in the beginning and 158.1 MB in the end (delta: -58.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.45 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 155.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.04 ms. Allocated memory is still 202.9 MB. Free memory was 155.5 MB in the beginning and 154.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 470.29 ms. Allocated memory is still 202.9 MB. Free memory was 154.2 MB in the beginning and 129.7 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3392.55 ms. Allocated memory was 202.9 MB in the beginning and 244.8 MB in the end (delta: 41.9 MB). Free memory was 129.7 MB in the beginning and 109.9 MB in the end (delta: 19.8 MB). Peak memory consumption was 61.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 814 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 59 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 86 PlacesBefore, 31 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 3181 MoverChecksTotal - PositiveResult [Line: 17]: 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 135 SDtfs, 122 SDslu, 165 SDs, 0 SdLazy, 97 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3136 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...