/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-VariableLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:01:48,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:01:48,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:01:48,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:01:48,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:01:48,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:01:48,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:01:48,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:01:48,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:01:48,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:01:48,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:01:48,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:01:48,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:01:48,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:01:48,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:01:48,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:01:48,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:01:48,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:01:48,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:01:48,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:01:48,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:01:48,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:01:48,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:01:48,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:01:48,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:01:48,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:01:48,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:01:48,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:01:48,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:01:48,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:01:48,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:01:48,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:01:48,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:01:48,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:01:48,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:01:48,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:01:48,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:01:48,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:01:48,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:01:48,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:01:48,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:01:48,213 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-VariableLbe-McrStrategy.epf [2020-04-18 15:01:48,231 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:01:48,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:01:48,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:01:48,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:01:48,234 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:01:48,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:01:48,234 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:01:48,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:01:48,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:01:48,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:01:48,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:01:48,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:01:48,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:01:48,236 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:01:48,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:01:48,236 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:01:48,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:01:48,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:01:48,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:01:48,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:01:48,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:01:48,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:01:48,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:01:48,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:01:48,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:01:48,240 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:01:48,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:01:48,240 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:01:48,240 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:01:48,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:01:48,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:01:48,508 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:01:48,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:01:48,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:01:48,524 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:01:48,525 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:01:48,526 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2020-04-18 15:01:48,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b428799d/b9caf0ba629d4b2481733ab7b1c8aa32/FLAG5583cab9d [2020-04-18 15:01:49,133 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:01:49,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2020-04-18 15:01:49,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b428799d/b9caf0ba629d4b2481733ab7b1c8aa32/FLAG5583cab9d [2020-04-18 15:01:49,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b428799d/b9caf0ba629d4b2481733ab7b1c8aa32 [2020-04-18 15:01:49,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:01:49,507 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:01:49,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:01:49,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:01:49,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:01:49,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:01:49" (1/1) ... [2020-04-18 15:01:49,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e5460c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:49, skipping insertion in model container [2020-04-18 15:01:49,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:01:49" (1/1) ... [2020-04-18 15:01:49,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:01:49,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:01:50,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:01:50,054 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:01:50,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:01:50,182 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:01:50,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:50 WrapperNode [2020-04-18 15:01:50,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:01:50,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:01:50,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:01:50,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:01:50,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:50" (1/1) ... [2020-04-18 15:01:50,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:50" (1/1) ... [2020-04-18 15:01:50,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:01:50,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:01:50,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:01:50,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:01:50,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:50" (1/1) ... [2020-04-18 15:01:50,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:50" (1/1) ... [2020-04-18 15:01:50,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:50" (1/1) ... [2020-04-18 15:01:50,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:50" (1/1) ... [2020-04-18 15:01:50,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:50" (1/1) ... [2020-04-18 15:01:50,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:50" (1/1) ... [2020-04-18 15:01:50,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:50" (1/1) ... [2020-04-18 15:01:50,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:01:50,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:01:50,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:01:50,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:01:50,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:01:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:01:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:01:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:01:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:01:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 15:01:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 15:01:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 15:01:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 15:01:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 15:01:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 15:01:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:01:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:01:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:01:50,376 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 15:01:50,785 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:01:50,785 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 15:01:50,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:01:50 BoogieIcfgContainer [2020-04-18 15:01:50,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:01:50,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:01:50,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:01:50,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:01:50,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:01:49" (1/3) ... [2020-04-18 15:01:50,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6833161a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:01:50, skipping insertion in model container [2020-04-18 15:01:50,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:01:50" (2/3) ... [2020-04-18 15:01:50,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6833161a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:01:50, skipping insertion in model container [2020-04-18 15:01:50,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:01:50" (3/3) ... [2020-04-18 15:01:50,798 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2020-04-18 15:01:50,807 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:01:50,807 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:01:50,813 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:01:50,814 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:01:50,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,841 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,841 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,841 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,842 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,842 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,843 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,843 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,843 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,843 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,844 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,844 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,844 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,845 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,845 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,845 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,846 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,850 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,850 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,850 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,851 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,856 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,857 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,857 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,857 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,866 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,866 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,867 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,867 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:01:50,887 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 15:01:50,907 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:01:50,908 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:01:50,908 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:01:50,908 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:01:50,908 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:01:50,908 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:01:50,909 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:01:50,909 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:01:50,924 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-04-18 15:01:50,926 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 15:01:50,968 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 15:01:50,968 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:01:50,975 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:01:50,978 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 15:01:51,005 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 15:01:51,006 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:01:51,006 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:01:51,008 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 15:01:51,009 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:01:52,224 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-18 15:01:52,347 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-04-18 15:01:52,348 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-04-18 15:01:52,351 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-04-18 15:01:52,380 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-04-18 15:01:52,382 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-04-18 15:01:52,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:01:52,391 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:01:52,391 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:01:52,392 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:01:52,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:52,398 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-04-18 15:01:52,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:01:52,406 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [217655395] [2020-04-18 15:01:52,421 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:52,434 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:01:52,435 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-04-18 15:01:52,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:01:52,436 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:01:52,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:52,437 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 2 times [2020-04-18 15:01:52,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:01:52,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561400398] [2020-04-18 15:01:52,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:01:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:01:52,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:01:52,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561400398] [2020-04-18 15:01:52,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:01:52,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:01:52,594 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:01:52,595 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:52,597 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:01:52,597 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:01:52,601 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:01:52,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:01:52,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:01:52,606 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states. [2020-04-18 15:01:52,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:52,609 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-04-18 15:01:52,609 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-04-18 15:01:52,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:01:52,610 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [217655395] [2020-04-18 15:01:52,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:01:52,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:01:52,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [217655395] [2020-04-18 15:01:52,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 15:01:52,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:01:52,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:01:52,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:01:52,618 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-04-18 15:01:52,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:52,639 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-04-18 15:01:52,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 15:01:52,641 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-04-18 15:01:52,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:01:52,658 INFO L225 Difference]: With dead ends: 362 [2020-04-18 15:01:52,658 INFO L226 Difference]: Without dead ends: 298 [2020-04-18 15:01:52,659 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:01:52,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-04-18 15:01:52,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-04-18 15:01:52,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-04-18 15:01:52,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-04-18 15:01:52,736 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-04-18 15:01:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:01:52,737 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-04-18 15:01:52,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 15:01:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-04-18 15:01:52,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:01:52,739 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:01:52,739 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:01:52,739 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:01:52,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:52,739 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-04-18 15:01:52,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:01:52,740 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1330161123] [2020-04-18 15:01:52,740 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:52,741 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:01:52,741 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 15:01:52,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:01:52,742 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:01:52,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:52,742 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 2 times [2020-04-18 15:01:52,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:01:52,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007370172] [2020-04-18 15:01:52,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:01:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:01:52,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:01:52,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007370172] [2020-04-18 15:01:52,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:01:52,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:01:52,925 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:01:52,926 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:52,930 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:01:52,931 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:01:52,939 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:01:52,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:01:52,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:01:52,940 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-04-18 15:01:52,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:52,953 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-04-18 15:01:52,953 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-04-18 15:01:52,954 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:01:52,955 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1330161123] [2020-04-18 15:01:52,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:01:52,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:01:52,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1330161123] [2020-04-18 15:01:52,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:01:52,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:01:52,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:01:52,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:01:52,957 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-04-18 15:01:52,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:52,989 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-04-18 15:01:52,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:01:52,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 15:01:52,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:01:52,995 INFO L225 Difference]: With dead ends: 330 [2020-04-18 15:01:52,995 INFO L226 Difference]: Without dead ends: 266 [2020-04-18 15:01:52,998 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:01:53,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-04-18 15:01:53,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-04-18 15:01:53,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-04-18 15:01:53,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-04-18 15:01:53,042 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-04-18 15:01:53,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:01:53,042 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-04-18 15:01:53,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:01:53,043 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-04-18 15:01:53,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:01:53,047 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:01:53,048 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:01:53,048 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:01:53,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:53,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-04-18 15:01:53,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:01:53,049 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1606645454] [2020-04-18 15:01:53,049 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:53,050 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-04-18 15:01:53,050 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-04-18 15:01:53,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:01:53,051 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:01:53,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:53,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 2 times [2020-04-18 15:01:53,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:01:53,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915995781] [2020-04-18 15:01:53,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:01:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:01:53,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:01:53,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915995781] [2020-04-18 15:01:53,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:01:53,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:01:53,155 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:01:53,157 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:53,159 INFO L259 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-04-18 15:01:53,159 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:01:53,166 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:01:53,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:01:53,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:01:53,167 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2020-04-18 15:01:53,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:53,181 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-04-18 15:01:53,181 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-04-18 15:01:53,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:01:53,182 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1606645454] [2020-04-18 15:01:53,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:01:53,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:01:53,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1606645454] [2020-04-18 15:01:53,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:01:53,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:01:53,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:01:53,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:01:53,184 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 4 states. [2020-04-18 15:01:53,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:53,206 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-04-18 15:01:53,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:01:53,206 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-04-18 15:01:53,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:01:53,209 INFO L225 Difference]: With dead ends: 290 [2020-04-18 15:01:53,209 INFO L226 Difference]: Without dead ends: 242 [2020-04-18 15:01:53,210 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:01:53,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-04-18 15:01:53,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-04-18 15:01:53,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-04-18 15:01:53,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-04-18 15:01:53,222 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-04-18 15:01:53,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:01:53,222 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-04-18 15:01:53,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:01:53,223 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-04-18 15:01:53,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 15:01:53,224 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:01:53,224 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:01:53,225 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:01:53,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:53,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-04-18 15:01:53,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:01:53,226 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [326527605] [2020-04-18 15:01:53,227 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:53,227 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 42 transitions. [2020-04-18 15:01:53,228 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-04-18 15:01:53,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 15:01:53,229 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:01:53,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:53,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 2 times [2020-04-18 15:01:53,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:01:53,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448064773] [2020-04-18 15:01:53,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:01:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:01:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:01:53,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448064773] [2020-04-18 15:01:53,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:01:53,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:01:53,304 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:01:53,307 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:53,309 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-04-18 15:01:53,310 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:01:53,364 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:01:53,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:01:53,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:01:53,365 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2020-04-18 15:01:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:53,386 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-04-18 15:01:53,386 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2020-04-18 15:01:53,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:01:53,387 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [326527605] [2020-04-18 15:01:53,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:01:53,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:01:53,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [326527605] [2020-04-18 15:01:53,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 15:01:53,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:01:53,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:01:53,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:01:53,389 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 6 states. [2020-04-18 15:01:53,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:53,455 INFO L93 Difference]: Finished difference Result 302 states and 815 transitions. [2020-04-18 15:01:53,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 15:01:53,455 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-04-18 15:01:53,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:01:53,457 INFO L225 Difference]: With dead ends: 302 [2020-04-18 15:01:53,457 INFO L226 Difference]: Without dead ends: 140 [2020-04-18 15:01:53,457 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:01:53,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-04-18 15:01:53,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-04-18 15:01:53,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-04-18 15:01:53,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 354 transitions. [2020-04-18 15:01:53,463 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 354 transitions. Word has length 11 [2020-04-18 15:01:53,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:01:53,463 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 354 transitions. [2020-04-18 15:01:53,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 15:01:53,464 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 354 transitions. [2020-04-18 15:01:53,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:01:53,465 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:01:53,465 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:01:53,465 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:01:53,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:53,465 INFO L82 PathProgramCache]: Analyzing trace with hash -234537171, now seen corresponding path program 1 times [2020-04-18 15:01:53,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:01:53,466 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [333921358] [2020-04-18 15:01:53,466 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:53,467 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 60 transitions. [2020-04-18 15:01:53,468 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-04-18 15:01:53,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:01:53,468 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:01:53,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:53,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1046934219, now seen corresponding path program 2 times [2020-04-18 15:01:53,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:01:53,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456988405] [2020-04-18 15:01:53,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:01:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:01:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:01:53,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456988405] [2020-04-18 15:01:53,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:01:53,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:01:53,516 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:01:53,517 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:53,519 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 35 transitions. [2020-04-18 15:01:53,520 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:01:53,527 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:01:53,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:01:53,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:01:53,528 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 4 states. [2020-04-18 15:01:53,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:53,535 INFO L93 Difference]: Finished difference Result 34 states and 60 transitions. [2020-04-18 15:01:53,536 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2020-04-18 15:01:53,536 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:01:53,536 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [333921358] [2020-04-18 15:01:53,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:01:53,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:01:53,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [333921358] [2020-04-18 15:01:53,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:01:53,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:01:53,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:01:53,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:01:53,538 INFO L87 Difference]: Start difference. First operand 140 states and 354 transitions. Second operand 4 states. [2020-04-18 15:01:53,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:53,549 INFO L93 Difference]: Finished difference Result 152 states and 368 transitions. [2020-04-18 15:01:53,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:01:53,550 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 15:01:53,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:01:53,551 INFO L225 Difference]: With dead ends: 152 [2020-04-18 15:01:53,551 INFO L226 Difference]: Without dead ends: 128 [2020-04-18 15:01:53,551 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:01:53,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-04-18 15:01:53,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-04-18 15:01:53,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-04-18 15:01:53,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 316 transitions. [2020-04-18 15:01:53,556 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 316 transitions. Word has length 12 [2020-04-18 15:01:53,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:01:53,557 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 316 transitions. [2020-04-18 15:01:53,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:01:53,557 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 316 transitions. [2020-04-18 15:01:53,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 15:01:53,558 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:01:53,558 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:01:53,558 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:01:53,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:53,559 INFO L82 PathProgramCache]: Analyzing trace with hash -762243594, now seen corresponding path program 1 times [2020-04-18 15:01:53,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:01:53,559 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [855020824] [2020-04-18 15:01:53,560 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:53,561 INFO L259 McrAutomatonBuilder]: Finished intersection with 62 states and 140 transitions. [2020-04-18 15:01:53,562 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2020-04-18 15:01:53,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 15:01:53,563 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:01:53,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:53,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1574640642, now seen corresponding path program 2 times [2020-04-18 15:01:53,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:01:53,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112606737] [2020-04-18 15:01:53,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:01:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:01:53,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:01:53,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112606737] [2020-04-18 15:01:53,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:01:53,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:01:53,636 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:01:53,637 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:53,641 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 70 transitions. [2020-04-18 15:01:53,642 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:01:53,747 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 15:01:53,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:01:53,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:01:53,751 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 7 states. [2020-04-18 15:01:53,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:53,805 INFO L93 Difference]: Finished difference Result 72 states and 153 transitions. [2020-04-18 15:01:53,805 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 153 transitions. [2020-04-18 15:01:53,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 15:01:53,806 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:01:53,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:53,807 INFO L82 PathProgramCache]: Analyzing trace with hash -762243594, now seen corresponding path program 3 times [2020-04-18 15:01:53,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:01:53,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716404601] [2020-04-18 15:01:53,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:01:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:01:53,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:01:53,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716404601] [2020-04-18 15:01:53,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:01:53,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:01:53,891 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:01:53,892 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:53,895 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 40 transitions. [2020-04-18 15:01:53,895 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:01:53,916 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:01:53,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:01:53,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-04-18 15:01:53,917 INFO L87 Difference]: Start difference. First operand 72 states and 153 transitions. Second operand 5 states. [2020-04-18 15:01:53,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:53,943 INFO L93 Difference]: Finished difference Result 72 states and 153 transitions. [2020-04-18 15:01:53,943 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 153 transitions. [2020-04-18 15:01:53,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:01:53,944 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [855020824] [2020-04-18 15:01:53,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:01:53,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:01:53,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [855020824] [2020-04-18 15:01:53,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 15:01:53,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:01:53,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 15:01:53,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-04-18 15:01:53,946 INFO L87 Difference]: Start difference. First operand 128 states and 316 transitions. Second operand 9 states. [2020-04-18 15:01:54,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:54,036 INFO L93 Difference]: Finished difference Result 170 states and 409 transitions. [2020-04-18 15:01:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 15:01:54,037 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2020-04-18 15:01:54,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:01:54,037 INFO L225 Difference]: With dead ends: 170 [2020-04-18 15:01:54,038 INFO L226 Difference]: Without dead ends: 80 [2020-04-18 15:01:54,038 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-04-18 15:01:54,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-04-18 15:01:54,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-04-18 15:01:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-04-18 15:01:54,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions. [2020-04-18 15:01:54,042 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 13 [2020-04-18 15:01:54,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:01:54,042 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions. [2020-04-18 15:01:54,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 15:01:54,043 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions. [2020-04-18 15:01:54,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 15:01:54,043 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:01:54,043 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:01:54,044 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:01:54,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:54,044 INFO L82 PathProgramCache]: Analyzing trace with hash -627503362, now seen corresponding path program 1 times [2020-04-18 15:01:54,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:01:54,045 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [744754886] [2020-04-18 15:01:54,046 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:54,048 INFO L259 McrAutomatonBuilder]: Finished intersection with 90 states and 220 transitions. [2020-04-18 15:01:54,049 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-04-18 15:01:54,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 15:01:54,050 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:01:54,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:01:54,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1571173060, now seen corresponding path program 2 times [2020-04-18 15:01:54,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:01:54,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279390919] [2020-04-18 15:01:54,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:01:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:01:54,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:01:54,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279390919] [2020-04-18 15:01:54,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:01:54,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:01:54,137 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:01:54,139 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:01:54,148 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 93 transitions. [2020-04-18 15:01:54,149 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:01:54,164 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 15:01:54,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:01:54,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:01:54,165 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 5 states. [2020-04-18 15:01:54,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:54,187 INFO L93 Difference]: Finished difference Result 90 states and 220 transitions. [2020-04-18 15:01:54,187 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 220 transitions. [2020-04-18 15:01:54,188 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:01:54,188 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [744754886] [2020-04-18 15:01:54,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:01:54,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:01:54,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [744754886] [2020-04-18 15:01:54,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 15:01:54,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:01:54,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:01:54,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:01:54,190 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 5 states. [2020-04-18 15:01:54,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:01:54,221 INFO L93 Difference]: Finished difference Result 68 states and 144 transitions. [2020-04-18 15:01:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 15:01:54,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-18 15:01:54,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:01:54,223 INFO L225 Difference]: With dead ends: 68 [2020-04-18 15:01:54,223 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 15:01:54,224 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:01:54,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 15:01:54,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 15:01:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 15:01:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 15:01:54,225 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-04-18 15:01:54,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:01:54,225 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 15:01:54,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 15:01:54,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 15:01:54,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:01:54,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:01:54 BasicIcfg [2020-04-18 15:01:54,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:01:54,235 INFO L168 Benchmark]: Toolchain (without parser) took 4745.77 ms. Allocated memory was 138.9 MB in the beginning and 247.5 MB in the end (delta: 108.5 MB). Free memory was 102.7 MB in the beginning and 147.5 MB in the end (delta: -44.8 MB). Peak memory consumption was 63.7 MB. Max. memory is 7.1 GB. [2020-04-18 15:01:54,237 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 15:01:54,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.03 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 159.4 MB in the end (delta: -58.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-04-18 15:01:54,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.60 ms. Allocated memory is still 202.9 MB. Free memory was 159.4 MB in the beginning and 157.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 15:01:54,240 INFO L168 Benchmark]: Boogie Preprocessor took 46.65 ms. Allocated memory is still 202.9 MB. Free memory was 157.4 MB in the beginning and 156.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 15:01:54,243 INFO L168 Benchmark]: RCFGBuilder took 481.45 ms. Allocated memory is still 202.9 MB. Free memory was 156.1 MB in the beginning and 133.7 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-04-18 15:01:54,244 INFO L168 Benchmark]: TraceAbstraction took 3438.79 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 133.0 MB in the beginning and 147.5 MB in the end (delta: -14.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2020-04-18 15:01:54,254 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 675.03 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 159.4 MB in the end (delta: -58.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 77.60 ms. Allocated memory is still 202.9 MB. Free memory was 159.4 MB in the beginning and 157.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.65 ms. Allocated memory is still 202.9 MB. Free memory was 157.4 MB in the beginning and 156.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 481.45 ms. Allocated memory is still 202.9 MB. Free memory was 156.1 MB in the beginning and 133.7 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3438.79 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 133.0 MB in the beginning and 147.5 MB in the end (delta: -14.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 668 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 156 SDtfs, 184 SDslu, 260 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...