/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-12 00:17:05,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-12 00:17:05,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-12 00:17:05,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-12 00:17:05,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-12 00:17:05,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-12 00:17:05,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-12 00:17:05,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-12 00:17:05,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-12 00:17:05,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-12 00:17:05,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-12 00:17:05,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-12 00:17:05,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-12 00:17:05,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-12 00:17:05,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-12 00:17:05,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-12 00:17:05,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-12 00:17:05,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-12 00:17:05,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-12 00:17:05,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-12 00:17:05,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-12 00:17:05,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-12 00:17:05,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-12 00:17:05,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-12 00:17:05,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-12 00:17:05,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-12 00:17:05,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-12 00:17:05,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-12 00:17:05,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-12 00:17:05,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-12 00:17:05,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-12 00:17:05,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-12 00:17:05,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-12 00:17:05,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-12 00:17:05,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-12 00:17:05,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-12 00:17:05,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-12 00:17:05,231 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-12 00:17:05,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-12 00:17:05,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-12 00:17:05,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-12 00:17:05,233 INFO L138 SettingsManager]: * Use SBE=true [2020-09-12 00:17:05,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-12 00:17:05,233 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-12 00:17:05,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-12 00:17:05,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-12 00:17:05,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-12 00:17:05,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-12 00:17:05,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-12 00:17:05,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-12 00:17:05,235 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-12 00:17:05,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-12 00:17:05,235 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-12 00:17:05,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-12 00:17:05,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-12 00:17:05,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-12 00:17:05,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-12 00:17:05,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-12 00:17:05,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-12 00:17:05,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-12 00:17:05,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-12 00:17:05,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-12 00:17:05,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-12 00:17:05,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-12 00:17:05,238 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-12 00:17:05,238 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-12 00:17:05,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-12 00:17:05,238 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-12 00:17:05,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-12 00:17:05,708 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-12 00:17:05,712 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-12 00:17:05,714 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-12 00:17:05,714 INFO L275 PluginConnector]: CDTParser initialized [2020-09-12 00:17:05,717 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-09-12 00:17:05,805 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/866b74690/e5a9c9d62e594f2ab6cd22650a02c80f/FLAGcdd4613fd [2020-09-12 00:17:06,412 INFO L306 CDTParser]: Found 1 translation units. [2020-09-12 00:17:06,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-09-12 00:17:06,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/866b74690/e5a9c9d62e594f2ab6cd22650a02c80f/FLAGcdd4613fd [2020-09-12 00:17:06,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/866b74690/e5a9c9d62e594f2ab6cd22650a02c80f [2020-09-12 00:17:06,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-12 00:17:06,704 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-12 00:17:06,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-12 00:17:06,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-12 00:17:06,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-12 00:17:06,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:17:06" (1/1) ... [2020-09-12 00:17:06,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14df979a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:06, skipping insertion in model container [2020-09-12 00:17:06,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:17:06" (1/1) ... [2020-09-12 00:17:06,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-12 00:17:06,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-12 00:17:07,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:17:07,360 INFO L203 MainTranslator]: Completed pre-run [2020-09-12 00:17:07,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:17:07,517 INFO L208 MainTranslator]: Completed translation [2020-09-12 00:17:07,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:07 WrapperNode [2020-09-12 00:17:07,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-12 00:17:07,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-12 00:17:07,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-12 00:17:07,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-12 00:17:07,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:07" (1/1) ... [2020-09-12 00:17:07,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:07" (1/1) ... [2020-09-12 00:17:07,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-12 00:17:07,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-12 00:17:07,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-12 00:17:07,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-12 00:17:07,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:07" (1/1) ... [2020-09-12 00:17:07,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:07" (1/1) ... [2020-09-12 00:17:07,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:07" (1/1) ... [2020-09-12 00:17:07,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:07" (1/1) ... [2020-09-12 00:17:07,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:07" (1/1) ... [2020-09-12 00:17:07,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:07" (1/1) ... [2020-09-12 00:17:07,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:07" (1/1) ... [2020-09-12 00:17:07,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-12 00:17:07,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-12 00:17:07,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-12 00:17:07,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-12 00:17:07,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-12 00:17:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-12 00:17:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-12 00:17:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-12 00:17:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-12 00:17:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-12 00:17:07,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-12 00:17:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-12 00:17:07,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-12 00:17:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-12 00:17:07,688 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-12 00:17:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-12 00:17:07,688 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-12 00:17:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-12 00:17:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-12 00:17:07,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-12 00:17:07,691 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-12 00:17:08,160 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-12 00:17:08,161 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-12 00:17:08,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:17:08 BoogieIcfgContainer [2020-09-12 00:17:08,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-12 00:17:08,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-12 00:17:08,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-12 00:17:08,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-12 00:17:08,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 12:17:06" (1/3) ... [2020-09-12 00:17:08,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cec5a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:17:08, skipping insertion in model container [2020-09-12 00:17:08,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:17:07" (2/3) ... [2020-09-12 00:17:08,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cec5a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:17:08, skipping insertion in model container [2020-09-12 00:17:08,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:17:08" (3/3) ... [2020-09-12 00:17:08,186 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-09-12 00:17:08,198 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-12 00:17:08,198 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-12 00:17:08,208 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-12 00:17:08,209 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-12 00:17:08,244 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,244 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,244 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,245 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,245 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,245 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,246 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,246 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,246 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,247 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,247 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,247 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,248 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,248 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,248 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,249 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,249 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,249 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,250 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,250 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,250 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,251 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,251 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,251 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,256 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,257 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,263 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,264 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,264 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,264 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,267 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,268 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,270 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,270 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,270 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,270 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:17:08,296 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-12 00:17:08,323 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-12 00:17:08,323 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-12 00:17:08,324 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-12 00:17:08,324 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-12 00:17:08,324 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-12 00:17:08,324 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-12 00:17:08,324 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-12 00:17:08,325 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-12 00:17:08,342 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-09-12 00:17:08,344 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-09-12 00:17:08,397 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-09-12 00:17:08,398 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-12 00:17:08,404 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-09-12 00:17:08,408 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-09-12 00:17:08,433 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-09-12 00:17:08,433 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-12 00:17:08,434 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-09-12 00:17:08,438 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2016 [2020-09-12 00:17:08,439 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-12 00:17:09,888 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-09-12 00:17:09,948 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4485 [2020-09-12 00:17:09,949 INFO L214 etLargeBlockEncoding]: Total number of compositions: 67 [2020-09-12 00:17:09,953 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-09-12 00:17:10,054 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-09-12 00:17:10,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-09-12 00:17:10,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-12 00:17:10,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:17:10,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:17:10,072 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:17:10,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:17:10,078 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-09-12 00:17:10,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:17:10,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602735363] [2020-09-12 00:17:10,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:17:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:17:10,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:17:10,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602735363] [2020-09-12 00:17:10,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:17:10,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-12 00:17:10,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [674814432] [2020-09-12 00:17:10,358 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:17:10,362 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:17:10,381 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-12 00:17:10,381 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:17:10,383 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:17:10,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-12 00:17:10,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:17:10,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-12 00:17:10,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-12 00:17:10,406 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-09-12 00:17:10,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:17:10,467 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-09-12 00:17:10,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-12 00:17:10,469 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-12 00:17:10,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:17:10,512 INFO L225 Difference]: With dead ends: 1450 [2020-09-12 00:17:10,513 INFO L226 Difference]: Without dead ends: 1194 [2020-09-12 00:17:10,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-12 00:17:10,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-09-12 00:17:10,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-09-12 00:17:10,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-09-12 00:17:10,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-09-12 00:17:10,667 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-09-12 00:17:10,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:17:10,668 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-09-12 00:17:10,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-12 00:17:10,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-09-12 00:17:10,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-12 00:17:10,671 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:17:10,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:17:10,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-12 00:17:10,672 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:17:10,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:17:10,673 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-09-12 00:17:10,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:17:10,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212882864] [2020-09-12 00:17:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:17:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:17:10,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:17:10,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212882864] [2020-09-12 00:17:10,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:17:10,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-12 00:17:10,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1756826004] [2020-09-12 00:17:10,837 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:17:10,838 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:17:10,840 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-12 00:17:10,840 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:17:10,842 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:17:10,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-12 00:17:10,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:17:10,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-12 00:17:10,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-12 00:17:10,845 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-09-12 00:17:10,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:17:10,927 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-09-12 00:17:10,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-12 00:17:10,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-12 00:17:10,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:17:10,938 INFO L225 Difference]: With dead ends: 1322 [2020-09-12 00:17:10,938 INFO L226 Difference]: Without dead ends: 1066 [2020-09-12 00:17:10,943 INFO L675 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 [2020-09-12 00:17:10,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-09-12 00:17:10,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-09-12 00:17:10,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-09-12 00:17:10,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-09-12 00:17:10,993 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-09-12 00:17:10,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:17:10,993 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-09-12 00:17:10,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-12 00:17:10,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-09-12 00:17:11,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-12 00:17:11,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:17:11,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:17:11,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-12 00:17:11,004 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:17:11,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:17:11,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1585409501, now seen corresponding path program 1 times [2020-09-12 00:17:11,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:17:11,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748480907] [2020-09-12 00:17:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:17:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:17:11,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:17:11,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748480907] [2020-09-12 00:17:11,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:17:11,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-12 00:17:11,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1175268450] [2020-09-12 00:17:11,158 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:17:11,161 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:17:11,163 INFO L274 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-09-12 00:17:11,163 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:17:11,204 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:17:11,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-12 00:17:11,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:17:11,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-12 00:17:11,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-12 00:17:11,206 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-09-12 00:17:11,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:17:11,243 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-09-12 00:17:11,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-12 00:17:11,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-12 00:17:11,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:17:11,252 INFO L225 Difference]: With dead ends: 1162 [2020-09-12 00:17:11,252 INFO L226 Difference]: Without dead ends: 970 [2020-09-12 00:17:11,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:17:11,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-09-12 00:17:11,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-09-12 00:17:11,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-09-12 00:17:11,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-09-12 00:17:11,292 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-09-12 00:17:11,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:17:11,292 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-09-12 00:17:11,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-12 00:17:11,292 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-09-12 00:17:11,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-12 00:17:11,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:17:11,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:17:11,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-12 00:17:11,295 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:17:11,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:17:11,295 INFO L82 PathProgramCache]: Analyzing trace with hash -333650641, now seen corresponding path program 1 times [2020-09-12 00:17:11,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:17:11,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956510989] [2020-09-12 00:17:11,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:17:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:17:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:17:11,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956510989] [2020-09-12 00:17:11,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:17:11,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:17:11,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1634137598] [2020-09-12 00:17:11,386 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:17:11,387 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:17:11,390 INFO L274 McrAutomatonBuilder]: Finished intersection with 28 states and 44 transitions. [2020-09-12 00:17:11,390 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:17:11,499 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:17:11,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:17:11,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:17:11,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:17:11,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:17:11,501 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 5 states. [2020-09-12 00:17:11,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:17:11,552 INFO L93 Difference]: Finished difference Result 1210 states and 4120 transitions. [2020-09-12 00:17:11,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-12 00:17:11,553 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-12 00:17:11,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:17:11,558 INFO L225 Difference]: With dead ends: 1210 [2020-09-12 00:17:11,558 INFO L226 Difference]: Without dead ends: 586 [2020-09-12 00:17:11,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-12 00:17:11,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-09-12 00:17:11,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2020-09-12 00:17:11,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-09-12 00:17:11,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 1872 transitions. [2020-09-12 00:17:11,580 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 1872 transitions. Word has length 13 [2020-09-12 00:17:11,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:17:11,580 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 1872 transitions. [2020-09-12 00:17:11,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:17:11,581 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 1872 transitions. [2020-09-12 00:17:11,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-12 00:17:11,582 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:17:11,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:17:11,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-12 00:17:11,583 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:17:11,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:17:11,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1296364861, now seen corresponding path program 1 times [2020-09-12 00:17:11,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:17:11,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898749903] [2020-09-12 00:17:11,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:17:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:17:11,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:17:11,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898749903] [2020-09-12 00:17:11,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:17:11,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:17:11,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [599980210] [2020-09-12 00:17:11,674 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:17:11,676 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:17:11,682 INFO L274 McrAutomatonBuilder]: Finished intersection with 52 states and 100 transitions. [2020-09-12 00:17:11,682 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:17:12,020 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:17:12,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:17:12,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:17:12,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:17:12,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:17:12,021 INFO L87 Difference]: Start difference. First operand 586 states and 1872 transitions. Second operand 5 states. [2020-09-12 00:17:12,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:17:12,074 INFO L93 Difference]: Finished difference Result 706 states and 2198 transitions. [2020-09-12 00:17:12,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-12 00:17:12,075 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-12 00:17:12,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:17:12,077 INFO L225 Difference]: With dead ends: 706 [2020-09-12 00:17:12,077 INFO L226 Difference]: Without dead ends: 304 [2020-09-12 00:17:12,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-12 00:17:12,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-12 00:17:12,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-09-12 00:17:12,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-09-12 00:17:12,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 882 transitions. [2020-09-12 00:17:12,089 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 882 transitions. Word has length 15 [2020-09-12 00:17:12,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:17:12,089 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 882 transitions. [2020-09-12 00:17:12,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:17:12,089 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 882 transitions. [2020-09-12 00:17:12,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-12 00:17:12,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:17:12,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:17:12,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-12 00:17:12,091 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:17:12,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:17:12,091 INFO L82 PathProgramCache]: Analyzing trace with hash -583625760, now seen corresponding path program 1 times [2020-09-12 00:17:12,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:17:12,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847632406] [2020-09-12 00:17:12,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:17:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:17:12,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:17:12,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847632406] [2020-09-12 00:17:12,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:17:12,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:17:12,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [289460226] [2020-09-12 00:17:12,169 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:17:12,172 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:17:12,180 INFO L274 McrAutomatonBuilder]: Finished intersection with 52 states and 94 transitions. [2020-09-12 00:17:12,180 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:17:12,357 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:17:12,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:17:12,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:17:12,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:17:12,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:17:12,358 INFO L87 Difference]: Start difference. First operand 304 states and 882 transitions. Second operand 5 states. [2020-09-12 00:17:12,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:17:12,401 INFO L93 Difference]: Finished difference Result 388 states and 1110 transitions. [2020-09-12 00:17:12,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-12 00:17:12,402 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-12 00:17:12,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:17:12,404 INFO L225 Difference]: With dead ends: 388 [2020-09-12 00:17:12,404 INFO L226 Difference]: Without dead ends: 148 [2020-09-12 00:17:12,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-12 00:17:12,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-12 00:17:12,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-09-12 00:17:12,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-12 00:17:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 398 transitions. [2020-09-12 00:17:12,410 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 398 transitions. Word has length 17 [2020-09-12 00:17:12,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:17:12,410 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 398 transitions. [2020-09-12 00:17:12,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:17:12,410 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 398 transitions. [2020-09-12 00:17:12,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-12 00:17:12,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:17:12,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:17:12,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-12 00:17:12,412 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:17:12,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:17:12,412 INFO L82 PathProgramCache]: Analyzing trace with hash 355522076, now seen corresponding path program 1 times [2020-09-12 00:17:12,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:17:12,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847571511] [2020-09-12 00:17:12,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:17:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:17:12,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:17:12,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847571511] [2020-09-12 00:17:12,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:17:12,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:17:12,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1448795544] [2020-09-12 00:17:12,487 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:17:12,489 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:17:12,494 INFO L274 McrAutomatonBuilder]: Finished intersection with 26 states and 32 transitions. [2020-09-12 00:17:12,494 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:17:12,516 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:17:12,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:17:12,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:17:12,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:17:12,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:17:12,517 INFO L87 Difference]: Start difference. First operand 148 states and 398 transitions. Second operand 5 states. [2020-09-12 00:17:12,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:17:12,553 INFO L93 Difference]: Finished difference Result 124 states and 322 transitions. [2020-09-12 00:17:12,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-12 00:17:12,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-12 00:17:12,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:17:12,554 INFO L225 Difference]: With dead ends: 124 [2020-09-12 00:17:12,554 INFO L226 Difference]: Without dead ends: 0 [2020-09-12 00:17:12,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-12 00:17:12,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-12 00:17:12,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-12 00:17:12,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-12 00:17:12,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-12 00:17:12,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-12 00:17:12,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:17:12,556 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-12 00:17:12,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:17:12,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-12 00:17:12,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-12 00:17:12,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-12 00:17:12,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 12:17:12 BasicIcfg [2020-09-12 00:17:12,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-12 00:17:12,565 INFO L168 Benchmark]: Toolchain (without parser) took 5866.92 ms. Allocated memory was 144.7 MB in the beginning and 287.8 MB in the end (delta: 143.1 MB). Free memory was 102.2 MB in the beginning and 107.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 138.0 MB. Max. memory is 7.1 GB. [2020-09-12 00:17:12,566 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 144.7 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-12 00:17:12,567 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.86 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 101.5 MB in the beginning and 161.9 MB in the end (delta: -60.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-09-12 00:17:12,568 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.72 ms. Allocated memory is still 205.0 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-12 00:17:12,569 INFO L168 Benchmark]: Boogie Preprocessor took 29.98 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-12 00:17:12,570 INFO L168 Benchmark]: RCFGBuilder took 561.89 ms. Allocated memory is still 205.0 MB. Free memory was 158.6 MB in the beginning and 133.6 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-09-12 00:17:12,571 INFO L168 Benchmark]: TraceAbstraction took 4389.70 ms. Allocated memory was 205.0 MB in the beginning and 287.8 MB in the end (delta: 82.8 MB). Free memory was 132.9 MB in the beginning and 107.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. [2020-09-12 00:17:12,575 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 144.7 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 810.86 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 101.5 MB in the beginning and 161.9 MB in the end (delta: -60.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.72 ms. Allocated memory is still 205.0 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.98 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 561.89 ms. Allocated memory is still 205.0 MB. Free memory was 158.6 MB in the beginning and 133.6 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4389.70 ms. Allocated memory was 205.0 MB in the beginning and 287.8 MB in the end (delta: 82.8 MB). Free memory was 132.9 MB in the beginning and 107.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 97 ProgramPointsBefore, 41 ProgramPointsAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 1043 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4485 CheckedPairsTotal, 67 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 203 SDtfs, 216 SDslu, 276 SDs, 0 SdLazy, 51 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 3479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...