/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/sigma.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-04 21:27:23,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-04 21:27:23,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-04 21:27:23,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-04 21:27:23,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-04 21:27:23,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-04 21:27:23,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-04 21:27:23,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-04 21:27:23,973 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-04 21:27:23,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-04 21:27:23,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-04 21:27:23,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-04 21:27:23,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-04 21:27:23,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-04 21:27:23,975 INFO L138 SettingsManager]: * Use SBE=true [2021-06-04 21:27:23,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-04 21:27:23,976 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-04 21:27:23,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-04 21:27:23,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-04 21:27:23,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-04 21:27:23,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-04 21:27:23,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-04 21:27:23,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-04 21:27:23,977 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-04 21:27:23,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-04 21:27:23,977 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-04 21:27:23,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-04 21:27:23,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-04 21:27:23,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-04 21:27:23,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-04 21:27:23,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-04 21:27:23,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-04 21:27:23,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-04 21:27:23,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-04 21:27:23,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-04 21:27:23,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-04 21:27:23,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-04 21:27:23,978 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-04 21:27:23,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-04 21:27:23,978 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-04 21:27:24,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-04 21:27:24,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-04 21:27:24,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-04 21:27:24,219 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-04 21:27:24,219 INFO L275 PluginConnector]: CDTParser initialized [2021-06-04 21:27:24,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sigma.i [2021-06-04 21:27:24,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e5e4e304/73ea57c982d64cf5be759d42920dd43d/FLAGa24adfcbc [2021-06-04 21:27:24,739 INFO L306 CDTParser]: Found 1 translation units. [2021-06-04 21:27:24,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i [2021-06-04 21:27:24,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e5e4e304/73ea57c982d64cf5be759d42920dd43d/FLAGa24adfcbc [2021-06-04 21:27:25,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e5e4e304/73ea57c982d64cf5be759d42920dd43d [2021-06-04 21:27:25,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-04 21:27:25,245 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-04 21:27:25,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-04 21:27:25,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-04 21:27:25,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-04 21:27:25,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 09:27:25" (1/1) ... [2021-06-04 21:27:25,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b5cbd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25, skipping insertion in model container [2021-06-04 21:27:25,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 09:27:25" (1/1) ... [2021-06-04 21:27:25,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-04 21:27:25,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-04 21:27:25,589 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i[55285,55298] [2021-06-04 21:27:25,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-04 21:27:25,608 INFO L203 MainTranslator]: Completed pre-run [2021-06-04 21:27:25,640 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i[55285,55298] [2021-06-04 21:27:25,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-04 21:27:25,750 INFO L208 MainTranslator]: Completed translation [2021-06-04 21:27:25,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25 WrapperNode [2021-06-04 21:27:25,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-04 21:27:25,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-04 21:27:25,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-04 21:27:25,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-04 21:27:25,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25" (1/1) ... [2021-06-04 21:27:25,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25" (1/1) ... [2021-06-04 21:27:25,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-04 21:27:25,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-04 21:27:25,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-04 21:27:25,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-04 21:27:25,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25" (1/1) ... [2021-06-04 21:27:25,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25" (1/1) ... [2021-06-04 21:27:25,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25" (1/1) ... [2021-06-04 21:27:25,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25" (1/1) ... [2021-06-04 21:27:25,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25" (1/1) ... [2021-06-04 21:27:25,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25" (1/1) ... [2021-06-04 21:27:25,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25" (1/1) ... [2021-06-04 21:27:25,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-04 21:27:25,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-04 21:27:25,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-04 21:27:25,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-04 21:27:25,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25" (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 [2021-06-04 21:27:25,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-04 21:27:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-06-04 21:27:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-04 21:27:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-04 21:27:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-04 21:27:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-06-04 21:27:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-04 21:27:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-04 21:27:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-06-04 21:27:25,873 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-06-04 21:27:25,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-04 21:27:25,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-04 21:27:25,874 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-04 21:27:26,209 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-04 21:27:26,209 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-06-04 21:27:26,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 09:27:26 BoogieIcfgContainer [2021-06-04 21:27:26,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-04 21:27:26,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-04 21:27:26,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-04 21:27:26,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-04 21:27:26,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 09:27:25" (1/3) ... [2021-06-04 21:27:26,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128d511f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 09:27:26, skipping insertion in model container [2021-06-04 21:27:26,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 09:27:25" (2/3) ... [2021-06-04 21:27:26,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128d511f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 09:27:26, skipping insertion in model container [2021-06-04 21:27:26,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 09:27:26" (3/3) ... [2021-06-04 21:27:26,215 INFO L111 eAbstractionObserver]: Analyzing ICFG sigma.i [2021-06-04 21:27:26,219 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-04 21:27:26,219 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-04 21:27:26,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-04 21:27:26,220 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-04 21:27:26,241 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,242 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,242 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,242 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,242 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,242 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,242 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,242 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,242 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,242 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,242 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,243 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,244 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,244 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,245 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,245 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,253 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-04 21:27:26,266 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-04 21:27:26,284 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-04 21:27:26,284 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-04 21:27:26,284 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-04 21:27:26,285 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-04 21:27:26,285 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-04 21:27:26,285 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-04 21:27:26,285 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-04 21:27:26,285 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-04 21:27:26,302 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 92 transitions, 192 flow [2021-06-04 21:27:26,324 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 288 states, 282 states have (on average 1.7304964539007093) internal successors, (488), 287 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 288 states, 282 states have (on average 1.7304964539007093) internal successors, (488), 287 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-04 21:27:26,335 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:26,336 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:26,336 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:26,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:26,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1750532089, now seen corresponding path program 1 times [2021-06-04 21:27:26,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:26,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125587042] [2021-06-04 21:27:26,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:27:26,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:26,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125587042] [2021-06-04 21:27:26,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125587042] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:27:26,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:27:26,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-04 21:27:26,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462506446] [2021-06-04 21:27:26,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-04 21:27:26,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:26,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-04 21:27:26,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:27:26,507 INFO L87 Difference]: Start difference. First operand has 288 states, 282 states have (on average 1.7304964539007093) internal successors, (488), 287 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:26,521 INFO L93 Difference]: Finished difference Result 282 states and 452 transitions. [2021-06-04 21:27:26,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-04 21:27:26,522 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-04 21:27:26,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:26,529 INFO L225 Difference]: With dead ends: 282 [2021-06-04 21:27:26,529 INFO L226 Difference]: Without dead ends: 241 [2021-06-04 21:27:26,530 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:27:26,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-06-04 21:27:26,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-06-04 21:27:26,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 238 states have (on average 1.6260504201680672) internal successors, (387), 240 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 387 transitions. [2021-06-04 21:27:26,561 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 387 transitions. Word has length 41 [2021-06-04 21:27:26,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:26,562 INFO L482 AbstractCegarLoop]: Abstraction has 241 states and 387 transitions. [2021-06-04 21:27:26,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,562 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 387 transitions. [2021-06-04 21:27:26,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-04 21:27:26,563 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:26,563 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:26,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-04 21:27:26,565 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:26,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:26,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1031341464, now seen corresponding path program 1 times [2021-06-04 21:27:26,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:26,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655690437] [2021-06-04 21:27:26,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:26,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:27:26,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:26,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655690437] [2021-06-04 21:27:26,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655690437] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:27:26,688 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:27:26,688 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-04 21:27:26,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584972727] [2021-06-04 21:27:26,689 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-04 21:27:26,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:26,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-04 21:27:26,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:27:26,690 INFO L87 Difference]: Start difference. First operand 241 states and 387 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:26,758 INFO L93 Difference]: Finished difference Result 165 states and 245 transitions. [2021-06-04 21:27:26,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-04 21:27:26,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-04 21:27:26,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:26,761 INFO L225 Difference]: With dead ends: 165 [2021-06-04 21:27:26,761 INFO L226 Difference]: Without dead ends: 165 [2021-06-04 21:27:26,762 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:27:26,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-06-04 21:27:26,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-06-04 21:27:26,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 163 states have (on average 1.5030674846625767) internal successors, (245), 164 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 245 transitions. [2021-06-04 21:27:26,771 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 245 transitions. Word has length 41 [2021-06-04 21:27:26,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:26,771 INFO L482 AbstractCegarLoop]: Abstraction has 165 states and 245 transitions. [2021-06-04 21:27:26,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,771 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 245 transitions. [2021-06-04 21:27:26,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-04 21:27:26,772 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:26,773 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:26,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-04 21:27:26,773 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:26,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:26,773 INFO L82 PathProgramCache]: Analyzing trace with hash -2107954742, now seen corresponding path program 1 times [2021-06-04 21:27:26,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:26,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514970553] [2021-06-04 21:27:26,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-04 21:27:26,819 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-04 21:27:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-04 21:27:26,840 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-04 21:27:26,858 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-04 21:27:26,858 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-04 21:27:26,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-04 21:27:26,859 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-04 21:27:26,859 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-04 21:27:26,864 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,865 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,865 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,865 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,865 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,865 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,865 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,865 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,865 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,866 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,866 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,866 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,866 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,867 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,867 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,868 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,869 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,869 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,869 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:26,871 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-04 21:27:26,871 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-04 21:27:26,872 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-04 21:27:26,872 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-04 21:27:26,872 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-04 21:27:26,873 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-04 21:27:26,873 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-04 21:27:26,873 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-04 21:27:26,873 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-04 21:27:26,873 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-04 21:27:26,874 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 98 transitions, 214 flow [2021-06-04 21:27:26,897 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1538 states, 1528 states have (on average 2.4404450261780104) internal successors, (3729), 1537 states have internal predecessors, (3729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 1538 states, 1528 states have (on average 2.4404450261780104) internal successors, (3729), 1537 states have internal predecessors, (3729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-04 21:27:26,900 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:26,900 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:26,900 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:26,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:26,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1058894999, now seen corresponding path program 1 times [2021-06-04 21:27:26,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:26,901 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146996334] [2021-06-04 21:27:26,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:26,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:27:26,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:26,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146996334] [2021-06-04 21:27:26,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146996334] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:27:26,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:27:26,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-04 21:27:26,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822305609] [2021-06-04 21:27:26,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-04 21:27:26,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:26,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-04 21:27:26,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:27:26,924 INFO L87 Difference]: Start difference. First operand has 1538 states, 1528 states have (on average 2.4404450261780104) internal successors, (3729), 1537 states have internal predecessors, (3729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:26,942 INFO L93 Difference]: Finished difference Result 1502 states and 3504 transitions. [2021-06-04 21:27:26,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-04 21:27:26,942 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-04 21:27:26,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:26,948 INFO L225 Difference]: With dead ends: 1502 [2021-06-04 21:27:26,948 INFO L226 Difference]: Without dead ends: 1281 [2021-06-04 21:27:26,948 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:27:26,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2021-06-04 21:27:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1281. [2021-06-04 21:27:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1276 states have (on average 2.34717868338558) internal successors, (2995), 1280 states have internal predecessors, (2995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 2995 transitions. [2021-06-04 21:27:26,991 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 2995 transitions. Word has length 41 [2021-06-04 21:27:26,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:26,992 INFO L482 AbstractCegarLoop]: Abstraction has 1281 states and 2995 transitions. [2021-06-04 21:27:26,992 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:26,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 2995 transitions. [2021-06-04 21:27:26,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-04 21:27:26,994 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:26,994 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:26,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-04 21:27:26,994 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:26,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:26,994 INFO L82 PathProgramCache]: Analyzing trace with hash -339704374, now seen corresponding path program 1 times [2021-06-04 21:27:26,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:26,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431904003] [2021-06-04 21:27:26,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:27,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:27:27,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:27,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431904003] [2021-06-04 21:27:27,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431904003] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:27:27,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:27:27,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-04 21:27:27,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447183408] [2021-06-04 21:27:27,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-04 21:27:27,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:27,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-04 21:27:27,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:27:27,064 INFO L87 Difference]: Start difference. First operand 1281 states and 2995 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:27,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:27,109 INFO L93 Difference]: Finished difference Result 929 states and 2029 transitions. [2021-06-04 21:27:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-04 21:27:27,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-04 21:27:27,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:27,113 INFO L225 Difference]: With dead ends: 929 [2021-06-04 21:27:27,113 INFO L226 Difference]: Without dead ends: 929 [2021-06-04 21:27:27,113 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:27:27,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2021-06-04 21:27:27,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 910. [2021-06-04 21:27:27,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 906 states have (on average 2.2097130242825607) internal successors, (2002), 909 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:27,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 2002 transitions. [2021-06-04 21:27:27,132 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 2002 transitions. Word has length 41 [2021-06-04 21:27:27,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:27,133 INFO L482 AbstractCegarLoop]: Abstraction has 910 states and 2002 transitions. [2021-06-04 21:27:27,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:27,134 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 2002 transitions. [2021-06-04 21:27:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-04 21:27:27,137 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:27,138 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:27,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-04 21:27:27,138 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:27,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:27,138 INFO L82 PathProgramCache]: Analyzing trace with hash 367933672, now seen corresponding path program 1 times [2021-06-04 21:27:27,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:27,139 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58270149] [2021-06-04 21:27:27,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-04 21:27:27,250 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:27,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58270149] [2021-06-04 21:27:27,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58270149] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:27:27,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:27:27,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-04 21:27:27,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251755738] [2021-06-04 21:27:27,251 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-04 21:27:27,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:27,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-04 21:27:27,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-04 21:27:27,252 INFO L87 Difference]: Start difference. First operand 910 states and 2002 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:27,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:27,308 INFO L93 Difference]: Finished difference Result 995 states and 2143 transitions. [2021-06-04 21:27:27,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-04 21:27:27,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-04 21:27:27,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:27,311 INFO L225 Difference]: With dead ends: 995 [2021-06-04 21:27:27,312 INFO L226 Difference]: Without dead ends: 995 [2021-06-04 21:27:27,312 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.6ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-04 21:27:27,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2021-06-04 21:27:27,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 921. [2021-06-04 21:27:27,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 917 states have (on average 2.2039258451472192) internal successors, (2021), 920 states have internal predecessors, (2021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:27,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 2021 transitions. [2021-06-04 21:27:27,327 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 2021 transitions. Word has length 69 [2021-06-04 21:27:27,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:27,328 INFO L482 AbstractCegarLoop]: Abstraction has 921 states and 2021 transitions. [2021-06-04 21:27:27,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:27,328 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 2021 transitions. [2021-06-04 21:27:27,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-04 21:27:27,330 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:27,330 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:27,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-04 21:27:27,330 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:27,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:27,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1437284449, now seen corresponding path program 1 times [2021-06-04 21:27:27,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:27,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148564004] [2021-06-04 21:27:27,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-04 21:27:27,358 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-04 21:27:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-04 21:27:27,402 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-04 21:27:27,417 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-04 21:27:27,418 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-04 21:27:27,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-04 21:27:27,418 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-04 21:27:27,418 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-06-04 21:27:27,428 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,429 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,429 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,429 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,429 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,429 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,429 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,429 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,430 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,430 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,430 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,430 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,430 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,430 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,430 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,431 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,431 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,431 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,431 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,431 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,431 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,431 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,431 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,431 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,431 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,431 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,431 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,432 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,432 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,432 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,432 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,432 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,432 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,432 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,432 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,432 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,432 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,433 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,433 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,433 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,434 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,434 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,435 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,435 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,437 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,438 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,439 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,439 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:27,442 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-04 21:27:27,446 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-04 21:27:27,447 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-04 21:27:27,447 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-04 21:27:27,447 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-04 21:27:27,447 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-04 21:27:27,447 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-04 21:27:27,447 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-04 21:27:27,447 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-04 21:27:27,448 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-04 21:27:27,452 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 104 transitions, 238 flow [2021-06-04 21:27:27,677 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8718 states, 8700 states have (on average 3.1447126436781607) internal successors, (27359), 8717 states have internal predecessors, (27359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 8718 states, 8700 states have (on average 3.1447126436781607) internal successors, (27359), 8717 states have internal predecessors, (27359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:27,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-04 21:27:27,694 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:27,695 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:27,695 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:27,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:27,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1201436719, now seen corresponding path program 1 times [2021-06-04 21:27:27,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:27,695 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911294218] [2021-06-04 21:27:27,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:27,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:27:27,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:27,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911294218] [2021-06-04 21:27:27,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911294218] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:27:27,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:27:27,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-04 21:27:27,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176785063] [2021-06-04 21:27:27,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-04 21:27:27,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:27,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-04 21:27:27,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:27:27,743 INFO L87 Difference]: Start difference. First operand has 8718 states, 8700 states have (on average 3.1447126436781607) internal successors, (27359), 8717 states have internal predecessors, (27359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:27,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:27,798 INFO L93 Difference]: Finished difference Result 8502 states and 25905 transitions. [2021-06-04 21:27:27,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-04 21:27:27,798 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-04 21:27:27,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:27,829 INFO L225 Difference]: With dead ends: 8502 [2021-06-04 21:27:27,829 INFO L226 Difference]: Without dead ends: 7201 [2021-06-04 21:27:27,829 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:27:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7201 states. [2021-06-04 21:27:27,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7201 to 7201. [2021-06-04 21:27:27,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7201 states, 7192 states have (on average 3.060622914349277) internal successors, (22012), 7200 states have internal predecessors, (22012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:27,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7201 states to 7201 states and 22012 transitions. [2021-06-04 21:27:28,000 INFO L78 Accepts]: Start accepts. Automaton has 7201 states and 22012 transitions. Word has length 41 [2021-06-04 21:27:28,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:28,000 INFO L482 AbstractCegarLoop]: Abstraction has 7201 states and 22012 transitions. [2021-06-04 21:27:28,000 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:28,000 INFO L276 IsEmpty]: Start isEmpty. Operand 7201 states and 22012 transitions. [2021-06-04 21:27:28,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-04 21:27:28,000 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:28,000 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:28,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-04 21:27:28,001 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:28,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:28,001 INFO L82 PathProgramCache]: Analyzing trace with hash -482246094, now seen corresponding path program 1 times [2021-06-04 21:27:28,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:28,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638619555] [2021-06-04 21:27:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:28,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:27:28,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:28,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638619555] [2021-06-04 21:27:28,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638619555] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:27:28,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:27:28,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-04 21:27:28,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299201480] [2021-06-04 21:27:28,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-04 21:27:28,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:28,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-04 21:27:28,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:27:28,033 INFO L87 Difference]: Start difference. First operand 7201 states and 22012 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:28,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:28,142 INFO L93 Difference]: Finished difference Result 5489 states and 15863 transitions. [2021-06-04 21:27:28,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-04 21:27:28,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-04 21:27:28,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:28,162 INFO L225 Difference]: With dead ends: 5489 [2021-06-04 21:27:28,162 INFO L226 Difference]: Without dead ends: 5489 [2021-06-04 21:27:28,162 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:27:28,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5489 states. [2021-06-04 21:27:28,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5489 to 5355. [2021-06-04 21:27:28,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5355 states, 5347 states have (on average 2.9145315129979426) internal successors, (15584), 5354 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:28,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5355 states to 5355 states and 15584 transitions. [2021-06-04 21:27:28,267 INFO L78 Accepts]: Start accepts. Automaton has 5355 states and 15584 transitions. Word has length 41 [2021-06-04 21:27:28,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:28,268 INFO L482 AbstractCegarLoop]: Abstraction has 5355 states and 15584 transitions. [2021-06-04 21:27:28,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:28,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5355 states and 15584 transitions. [2021-06-04 21:27:28,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-04 21:27:28,269 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:28,269 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:28,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-04 21:27:28,269 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:28,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:28,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1599598941, now seen corresponding path program 1 times [2021-06-04 21:27:28,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:28,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512949129] [2021-06-04 21:27:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-04 21:27:28,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:28,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512949129] [2021-06-04 21:27:28,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512949129] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:27:28,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:27:28,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-04 21:27:28,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612706731] [2021-06-04 21:27:28,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-04 21:27:28,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:28,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-04 21:27:28,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-04 21:27:28,309 INFO L87 Difference]: Start difference. First operand 5355 states and 15584 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:28,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:28,426 INFO L93 Difference]: Finished difference Result 6035 states and 17201 transitions. [2021-06-04 21:27:28,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-04 21:27:28,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-04 21:27:28,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:28,440 INFO L225 Difference]: With dead ends: 6035 [2021-06-04 21:27:28,441 INFO L226 Difference]: Without dead ends: 6035 [2021-06-04 21:27:28,441 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 63.1ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-04 21:27:28,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6035 states. [2021-06-04 21:27:28,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6035 to 5446. [2021-06-04 21:27:28,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5446 states, 5438 states have (on average 2.906767193821258) internal successors, (15807), 5445 states have internal predecessors, (15807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:28,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 15807 transitions. [2021-06-04 21:27:28,566 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 15807 transitions. Word has length 69 [2021-06-04 21:27:28,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:28,568 INFO L482 AbstractCegarLoop]: Abstraction has 5446 states and 15807 transitions. [2021-06-04 21:27:28,568 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:28,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 15807 transitions. [2021-06-04 21:27:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-06-04 21:27:28,570 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:28,570 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:28,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-04 21:27:28,570 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:28,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:28,571 INFO L82 PathProgramCache]: Analyzing trace with hash 2100395439, now seen corresponding path program 1 times [2021-06-04 21:27:28,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:28,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028849398] [2021-06-04 21:27:28,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:28,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-04 21:27:28,638 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:28,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028849398] [2021-06-04 21:27:28,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028849398] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-04 21:27:28,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127539539] [2021-06-04 21:27:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-04 21:27:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:28,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-04 21:27:28,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-04 21:27:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-04 21:27:28,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127539539] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-04 21:27:28,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-04 21:27:28,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-06-04 21:27:28,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741551267] [2021-06-04 21:27:28,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-04 21:27:28,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:28,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-04 21:27:28,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-04 21:27:28,981 INFO L87 Difference]: Start difference. First operand 5446 states and 15807 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:29,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:29,084 INFO L93 Difference]: Finished difference Result 5551 states and 16036 transitions. [2021-06-04 21:27:29,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-04 21:27:29,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-06-04 21:27:29,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:29,095 INFO L225 Difference]: With dead ends: 5551 [2021-06-04 21:27:29,095 INFO L226 Difference]: Without dead ends: 5551 [2021-06-04 21:27:29,096 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 46.9ms TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-06-04 21:27:29,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5551 states. [2021-06-04 21:27:29,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5551 to 5436. [2021-06-04 21:27:29,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5428 states have (on average 2.9078850405305823) internal successors, (15784), 5435 states have internal predecessors, (15784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:29,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 15784 transitions. [2021-06-04 21:27:29,249 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 15784 transitions. Word has length 76 [2021-06-04 21:27:29,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:29,249 INFO L482 AbstractCegarLoop]: Abstraction has 5436 states and 15784 transitions. [2021-06-04 21:27:29,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:29,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 15784 transitions. [2021-06-04 21:27:29,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-06-04 21:27:29,258 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:29,258 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:29,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-06-04 21:27:29,473 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:29,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:29,473 INFO L82 PathProgramCache]: Analyzing trace with hash 2017283657, now seen corresponding path program 1 times [2021-06-04 21:27:29,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:29,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553447275] [2021-06-04 21:27:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-04 21:27:29,490 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-04 21:27:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-04 21:27:29,512 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-04 21:27:29,532 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-04 21:27:29,532 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-04 21:27:29,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-04 21:27:29,532 WARN L242 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-04 21:27:29,532 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-06-04 21:27:29,577 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,577 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,577 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,577 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,577 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,578 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,579 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,579 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,579 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,581 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,581 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,582 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,582 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,582 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,582 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,583 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,583 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,583 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,583 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,584 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,584 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,585 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,585 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:29,588 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-04 21:27:29,589 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-04 21:27:29,590 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-04 21:27:29,590 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-04 21:27:29,590 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-04 21:27:29,590 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-04 21:27:29,590 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-04 21:27:29,590 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-04 21:27:29,590 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-04 21:27:29,590 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-04 21:27:29,592 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 108 places, 110 transitions, 264 flow [2021-06-04 21:27:33,219 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 50198 states, 50164 states have (on average 3.8379913882465515) internal successors, (192529), 50197 states have internal predecessors, (192529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:33,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 50198 states, 50164 states have (on average 3.8379913882465515) internal successors, (192529), 50197 states have internal predecessors, (192529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:33,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-04 21:27:33,271 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:33,271 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:33,271 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:33,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:33,271 INFO L82 PathProgramCache]: Analyzing trace with hash 319858688, now seen corresponding path program 1 times [2021-06-04 21:27:33,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:33,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710440] [2021-06-04 21:27:33,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:33,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:27:33,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:33,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710440] [2021-06-04 21:27:33,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710440] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:27:33,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:27:33,284 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-04 21:27:33,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237650617] [2021-06-04 21:27:33,285 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-04 21:27:33,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:33,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-04 21:27:33,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:27:33,336 INFO L87 Difference]: Start difference. First operand has 50198 states, 50164 states have (on average 3.8379913882465515) internal successors, (192529), 50197 states have internal predecessors, (192529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:33,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:33,664 INFO L93 Difference]: Finished difference Result 48902 states and 183106 transitions. [2021-06-04 21:27:33,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-04 21:27:33,664 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-04 21:27:33,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:34,002 INFO L225 Difference]: With dead ends: 48902 [2021-06-04 21:27:34,002 INFO L226 Difference]: Without dead ends: 41121 [2021-06-04 21:27:34,003 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:27:34,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41121 states. [2021-06-04 21:27:34,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41121 to 41121. [2021-06-04 21:27:35,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41121 states, 41104 states have (on average 3.760923511093811) internal successors, (154589), 41120 states have internal predecessors, (154589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:35,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41121 states to 41121 states and 154589 transitions. [2021-06-04 21:27:35,251 INFO L78 Accepts]: Start accepts. Automaton has 41121 states and 154589 transitions. Word has length 41 [2021-06-04 21:27:35,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:35,252 INFO L482 AbstractCegarLoop]: Abstraction has 41121 states and 154589 transitions. [2021-06-04 21:27:35,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:35,252 INFO L276 IsEmpty]: Start isEmpty. Operand 41121 states and 154589 transitions. [2021-06-04 21:27:35,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-04 21:27:35,253 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:35,253 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:35,253 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-04 21:27:35,253 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:35,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:35,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1458966624, now seen corresponding path program 1 times [2021-06-04 21:27:35,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:35,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242901187] [2021-06-04 21:27:35,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:35,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:27:35,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:35,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242901187] [2021-06-04 21:27:35,412 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242901187] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:27:35,412 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:27:35,413 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-04 21:27:35,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235789775] [2021-06-04 21:27:35,413 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-04 21:27:35,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:35,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-04 21:27:35,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:27:35,413 INFO L87 Difference]: Start difference. First operand 41121 states and 154589 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:35,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:35,626 INFO L93 Difference]: Finished difference Result 32709 states and 117370 transitions. [2021-06-04 21:27:35,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-04 21:27:35,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-04 21:27:35,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:35,721 INFO L225 Difference]: With dead ends: 32709 [2021-06-04 21:27:35,721 INFO L226 Difference]: Without dead ends: 32709 [2021-06-04 21:27:35,721 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:27:36,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32709 states. [2021-06-04 21:27:36,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32709 to 31900. [2021-06-04 21:27:36,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31900 states, 31884 states have (on average 3.609522017312759) internal successors, (115086), 31899 states have internal predecessors, (115086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:36,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31900 states to 31900 states and 115086 transitions. [2021-06-04 21:27:36,637 INFO L78 Accepts]: Start accepts. Automaton has 31900 states and 115086 transitions. Word has length 41 [2021-06-04 21:27:36,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:36,637 INFO L482 AbstractCegarLoop]: Abstraction has 31900 states and 115086 transitions. [2021-06-04 21:27:36,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:36,637 INFO L276 IsEmpty]: Start isEmpty. Operand 31900 states and 115086 transitions. [2021-06-04 21:27:36,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-04 21:27:36,638 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:36,638 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:36,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-04 21:27:36,639 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:36,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:36,639 INFO L82 PathProgramCache]: Analyzing trace with hash -632966192, now seen corresponding path program 1 times [2021-06-04 21:27:36,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:36,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764567003] [2021-06-04 21:27:36,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:36,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-04 21:27:36,675 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:36,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764567003] [2021-06-04 21:27:36,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764567003] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:27:36,675 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:27:36,675 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-04 21:27:36,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154794615] [2021-06-04 21:27:36,677 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-04 21:27:36,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:36,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-04 21:27:36,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-04 21:27:36,677 INFO L87 Difference]: Start difference. First operand 31900 states and 115086 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:37,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:37,051 INFO L93 Difference]: Finished difference Result 36735 states and 130132 transitions. [2021-06-04 21:27:37,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-04 21:27:37,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-04 21:27:37,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:37,147 INFO L225 Difference]: With dead ends: 36735 [2021-06-04 21:27:37,148 INFO L226 Difference]: Without dead ends: 36735 [2021-06-04 21:27:37,148 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.8ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-04 21:27:37,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36735 states. [2021-06-04 21:27:37,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36735 to 32571. [2021-06-04 21:27:37,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32571 states, 32555 states have (on average 3.600460758716019) internal successors, (117213), 32570 states have internal predecessors, (117213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:38,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32571 states to 32571 states and 117213 transitions. [2021-06-04 21:27:38,211 INFO L78 Accepts]: Start accepts. Automaton has 32571 states and 117213 transitions. Word has length 69 [2021-06-04 21:27:38,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:38,211 INFO L482 AbstractCegarLoop]: Abstraction has 32571 states and 117213 transitions. [2021-06-04 21:27:38,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:38,211 INFO L276 IsEmpty]: Start isEmpty. Operand 32571 states and 117213 transitions. [2021-06-04 21:27:38,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-06-04 21:27:38,213 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:38,213 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:38,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-04 21:27:38,213 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:38,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:38,213 INFO L82 PathProgramCache]: Analyzing trace with hash 414249738, now seen corresponding path program 1 times [2021-06-04 21:27:38,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:38,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259933026] [2021-06-04 21:27:38,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-04 21:27:38,295 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:38,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259933026] [2021-06-04 21:27:38,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259933026] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-04 21:27:38,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859608853] [2021-06-04 21:27:38,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-04 21:27:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:38,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-04 21:27:38,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-04 21:27:38,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-04 21:27:38,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859608853] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-04 21:27:38,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-04 21:27:38,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-06-04 21:27:38,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103367589] [2021-06-04 21:27:38,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-04 21:27:38,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:38,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-04 21:27:38,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-04 21:27:38,504 INFO L87 Difference]: Start difference. First operand 32571 states and 117213 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:38,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:38,705 INFO L93 Difference]: Finished difference Result 33351 states and 119447 transitions. [2021-06-04 21:27:38,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-04 21:27:38,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-06-04 21:27:38,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:38,778 INFO L225 Difference]: With dead ends: 33351 [2021-06-04 21:27:38,778 INFO L226 Difference]: Without dead ends: 33351 [2021-06-04 21:27:38,778 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 49.0ms TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-06-04 21:27:38,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33351 states. [2021-06-04 21:27:39,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33351 to 32561. [2021-06-04 21:27:39,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32561 states, 32545 states have (on average 3.6008603472115532) internal successors, (117190), 32560 states have internal predecessors, (117190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:39,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32561 states to 32561 states and 117190 transitions. [2021-06-04 21:27:39,749 INFO L78 Accepts]: Start accepts. Automaton has 32561 states and 117190 transitions. Word has length 76 [2021-06-04 21:27:39,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:39,750 INFO L482 AbstractCegarLoop]: Abstraction has 32561 states and 117190 transitions. [2021-06-04 21:27:39,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:39,750 INFO L276 IsEmpty]: Start isEmpty. Operand 32561 states and 117190 transitions. [2021-06-04 21:27:39,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-06-04 21:27:39,763 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:39,763 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:39,969 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-04 21:27:39,969 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:39,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:39,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1303723719, now seen corresponding path program 1 times [2021-06-04 21:27:39,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:39,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127960655] [2021-06-04 21:27:39,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:40,019 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-06-04 21:27:40,019 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:27:40,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127960655] [2021-06-04 21:27:40,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127960655] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-04 21:27:40,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970354020] [2021-06-04 21:27:40,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-04 21:27:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:27:40,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-04 21:27:40,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-04 21:27:40,288 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-04 21:27:40,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970354020] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-04 21:27:40,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-04 21:27:40,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-06-04 21:27:40,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39678990] [2021-06-04 21:27:40,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-04 21:27:40,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:27:40,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-04 21:27:40,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-06-04 21:27:40,290 INFO L87 Difference]: Start difference. First operand 32561 states and 117190 transitions. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:40,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:27:40,512 INFO L93 Difference]: Finished difference Result 25621 states and 92378 transitions. [2021-06-04 21:27:40,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-04 21:27:40,512 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-06-04 21:27:40,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:27:40,571 INFO L225 Difference]: With dead ends: 25621 [2021-06-04 21:27:40,571 INFO L226 Difference]: Without dead ends: 25621 [2021-06-04 21:27:40,571 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 90.4ms TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-06-04 21:27:40,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25621 states. [2021-06-04 21:27:41,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25621 to 25336. [2021-06-04 21:27:41,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25336 states, 25324 states have (on average 3.6222555678407833) internal successors, (91730), 25335 states have internal predecessors, (91730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25336 states to 25336 states and 91730 transitions. [2021-06-04 21:27:41,275 INFO L78 Accepts]: Start accepts. Automaton has 25336 states and 91730 transitions. Word has length 91 [2021-06-04 21:27:41,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:27:41,276 INFO L482 AbstractCegarLoop]: Abstraction has 25336 states and 91730 transitions. [2021-06-04 21:27:41,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:27:41,276 INFO L276 IsEmpty]: Start isEmpty. Operand 25336 states and 91730 transitions. [2021-06-04 21:27:41,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-06-04 21:27:41,297 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:27:41,297 INFO L521 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:27:41,513 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-04 21:27:41,513 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:27:41,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:27:41,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1407006812, now seen corresponding path program 1 times [2021-06-04 21:27:41,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:27:41,514 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70951884] [2021-06-04 21:27:41,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:27:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-04 21:27:41,533 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-04 21:27:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-04 21:27:41,553 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-04 21:27:41,564 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-04 21:27:41,565 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-04 21:27:41,565 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-04 21:27:41,565 WARN L242 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-04 21:27:41,565 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-06-04 21:27:41,577 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,577 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,577 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,577 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,577 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,577 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,577 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,577 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,577 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,577 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,577 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,577 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,578 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,579 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,580 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,580 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,580 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,580 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,580 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,581 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,581 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,581 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,581 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,581 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,582 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,583 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,583 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,583 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,584 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,584 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,584 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,584 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,585 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,585 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,585 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,585 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,586 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,586 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,586 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,586 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:27:41,591 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-06-04 21:27:41,592 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-04 21:27:41,594 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-04 21:27:41,595 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-04 21:27:41,595 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-04 21:27:41,595 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-04 21:27:41,595 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-04 21:27:41,595 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-04 21:27:41,595 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-04 21:27:41,595 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-04 21:27:41,596 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 115 places, 116 transitions, 292 flow [2021-06-04 21:30:01,633 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 291078 states, 291012 states have (on average 4.524208623699367) internal successors, (1316599), 291077 states have internal predecessors, (1316599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:01,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 291078 states, 291012 states have (on average 4.524208623699367) internal successors, (1316599), 291077 states have internal predecessors, (1316599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:01,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-04 21:30:01,966 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:30:01,966 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:30:01,966 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:30:01,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:30:01,966 INFO L82 PathProgramCache]: Analyzing trace with hash 305910707, now seen corresponding path program 1 times [2021-06-04 21:30:01,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:30:01,966 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970700378] [2021-06-04 21:30:01,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:30:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:30:01,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:30:01,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:30:01,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970700378] [2021-06-04 21:30:01,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970700378] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:30:01,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:30:01,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-04 21:30:01,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307788860] [2021-06-04 21:30:01,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-04 21:30:01,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:30:01,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-04 21:30:01,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:30:02,309 INFO L87 Difference]: Start difference. First operand has 291078 states, 291012 states have (on average 4.524208623699367) internal successors, (1316599), 291077 states have internal predecessors, (1316599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:05,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:30:05,333 INFO L93 Difference]: Finished difference Result 283302 states and 1255667 transitions. [2021-06-04 21:30:05,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-04 21:30:05,333 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-04 21:30:05,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:30:06,453 INFO L225 Difference]: With dead ends: 283302 [2021-06-04 21:30:06,453 INFO L226 Difference]: Without dead ends: 236641 [2021-06-04 21:30:06,453 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-04 21:30:10,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236641 states. [2021-06-04 21:30:14,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236641 to 236641. [2021-06-04 21:30:15,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236641 states, 236608 states have (on average 4.452453002434407) internal successors, (1053486), 236640 states have internal predecessors, (1053486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:17,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236641 states to 236641 states and 1053486 transitions. [2021-06-04 21:30:17,197 INFO L78 Accepts]: Start accepts. Automaton has 236641 states and 1053486 transitions. Word has length 41 [2021-06-04 21:30:17,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:30:17,197 INFO L482 AbstractCegarLoop]: Abstraction has 236641 states and 1053486 transitions. [2021-06-04 21:30:17,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:17,197 INFO L276 IsEmpty]: Start isEmpty. Operand 236641 states and 1053486 transitions. [2021-06-04 21:30:17,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-04 21:30:17,197 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:30:17,197 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:30:17,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-04 21:30:17,198 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:30:17,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:30:17,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1025101332, now seen corresponding path program 1 times [2021-06-04 21:30:17,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:30:17,198 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135013012] [2021-06-04 21:30:17,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:30:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:30:17,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-04 21:30:17,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:30:17,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135013012] [2021-06-04 21:30:17,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135013012] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:30:17,217 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:30:17,217 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-04 21:30:17,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029812717] [2021-06-04 21:30:17,218 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-04 21:30:17,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:30:17,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-04 21:30:17,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:30:17,218 INFO L87 Difference]: Start difference. First operand 236641 states and 1053486 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:18,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:30:18,620 INFO L93 Difference]: Finished difference Result 195229 states and 835942 transitions. [2021-06-04 21:30:18,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-04 21:30:18,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-04 21:30:18,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:30:19,849 INFO L225 Difference]: With dead ends: 195229 [2021-06-04 21:30:19,849 INFO L226 Difference]: Without dead ends: 195229 [2021-06-04 21:30:19,850 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-04 21:30:22,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195229 states. [2021-06-04 21:30:25,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195229 to 190545. [2021-06-04 21:30:26,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190545 states, 190513 states have (on average 4.299486124306478) internal successors, (819108), 190544 states have internal predecessors, (819108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:27,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190545 states to 190545 states and 819108 transitions. [2021-06-04 21:30:27,377 INFO L78 Accepts]: Start accepts. Automaton has 190545 states and 819108 transitions. Word has length 41 [2021-06-04 21:30:27,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:30:27,378 INFO L482 AbstractCegarLoop]: Abstraction has 190545 states and 819108 transitions. [2021-06-04 21:30:27,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:27,378 INFO L276 IsEmpty]: Start isEmpty. Operand 190545 states and 819108 transitions. [2021-06-04 21:30:27,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-04 21:30:27,379 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:30:27,379 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:30:27,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-04 21:30:27,379 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:30:27,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:30:27,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1483455501, now seen corresponding path program 1 times [2021-06-04 21:30:27,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:30:27,380 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323122093] [2021-06-04 21:30:27,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:30:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:30:28,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-04 21:30:28,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:30:28,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323122093] [2021-06-04 21:30:28,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323122093] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-04 21:30:28,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-04 21:30:28,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-04 21:30:28,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209387081] [2021-06-04 21:30:28,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-04 21:30:28,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:30:28,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-04 21:30:28,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-04 21:30:28,024 INFO L87 Difference]: Start difference. First operand 190545 states and 819108 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:30,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:30:30,198 INFO L93 Difference]: Finished difference Result 223135 states and 944368 transitions. [2021-06-04 21:30:30,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-04 21:30:30,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-04 21:30:30,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:30:31,709 INFO L225 Difference]: With dead ends: 223135 [2021-06-04 21:30:31,709 INFO L226 Difference]: Without dead ends: 223135 [2021-06-04 21:30:31,709 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.9ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-04 21:30:34,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223135 states. [2021-06-04 21:30:38,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223135 to 195196. [2021-06-04 21:30:39,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195196 states, 195164 states have (on average 4.289617962329118) internal successors, (837179), 195195 states have internal predecessors, (837179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:40,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195196 states to 195196 states and 837179 transitions. [2021-06-04 21:30:40,107 INFO L78 Accepts]: Start accepts. Automaton has 195196 states and 837179 transitions. Word has length 69 [2021-06-04 21:30:40,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:30:40,107 INFO L482 AbstractCegarLoop]: Abstraction has 195196 states and 837179 transitions. [2021-06-04 21:30:40,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:40,107 INFO L276 IsEmpty]: Start isEmpty. Operand 195196 states and 837179 transitions. [2021-06-04 21:30:40,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-06-04 21:30:40,109 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:30:40,109 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:30:40,109 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-04 21:30:40,109 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:30:40,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:30:40,109 INFO L82 PathProgramCache]: Analyzing trace with hash 314032417, now seen corresponding path program 1 times [2021-06-04 21:30:40,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:30:40,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111269576] [2021-06-04 21:30:40,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:30:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:30:40,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-04 21:30:40,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:30:40,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111269576] [2021-06-04 21:30:40,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111269576] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-04 21:30:40,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001112165] [2021-06-04 21:30:40,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-04 21:30:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:30:40,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-04 21:30:40,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-04 21:30:40,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-04 21:30:40,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001112165] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-04 21:30:40,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-04 21:30:40,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-06-04 21:30:40,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325280448] [2021-06-04 21:30:40,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-04 21:30:40,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:30:40,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-04 21:30:40,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-04 21:30:40,903 INFO L87 Difference]: Start difference. First operand 195196 states and 837179 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:42,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:30:42,443 INFO L93 Difference]: Finished difference Result 199851 states and 853963 transitions. [2021-06-04 21:30:42,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-04 21:30:42,445 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-06-04 21:30:42,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:30:43,218 INFO L225 Difference]: With dead ends: 199851 [2021-06-04 21:30:43,218 INFO L226 Difference]: Without dead ends: 199851 [2021-06-04 21:30:43,218 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 45.6ms TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-06-04 21:30:46,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199851 states. [2021-06-04 21:30:49,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199851 to 195186. [2021-06-04 21:30:49,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195186 states, 195154 states have (on average 4.289719913504207) internal successors, (837156), 195185 states have internal predecessors, (837156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:51,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195186 states to 195186 states and 837156 transitions. [2021-06-04 21:30:51,060 INFO L78 Accepts]: Start accepts. Automaton has 195186 states and 837156 transitions. Word has length 76 [2021-06-04 21:30:51,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:30:51,061 INFO L482 AbstractCegarLoop]: Abstraction has 195186 states and 837156 transitions. [2021-06-04 21:30:51,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:51,061 INFO L276 IsEmpty]: Start isEmpty. Operand 195186 states and 837156 transitions. [2021-06-04 21:30:51,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-06-04 21:30:51,068 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:30:51,068 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:30:51,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-04 21:30:51,284 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:30:51,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:30:51,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1202886806, now seen corresponding path program 1 times [2021-06-04 21:30:51,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:30:51,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339346316] [2021-06-04 21:30:51,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:30:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:30:51,324 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-06-04 21:30:51,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-04 21:30:51,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339346316] [2021-06-04 21:30:51,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339346316] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-04 21:30:51,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844291002] [2021-06-04 21:30:51,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-04 21:30:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-04 21:30:51,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-04 21:30:51,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-04 21:30:51,557 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-04 21:30:51,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844291002] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-04 21:30:51,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-04 21:30:51,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-06-04 21:30:51,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79141261] [2021-06-04 21:30:51,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-04 21:30:51,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-04 21:30:51,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-04 21:30:51,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-06-04 21:30:51,558 INFO L87 Difference]: Start difference. First operand 195186 states and 837156 transitions. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:52,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-04 21:30:52,991 INFO L93 Difference]: Finished difference Result 153221 states and 651329 transitions. [2021-06-04 21:30:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-04 21:30:52,991 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-06-04 21:30:52,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-04 21:30:53,459 INFO L225 Difference]: With dead ends: 153221 [2021-06-04 21:30:53,459 INFO L226 Difference]: Without dead ends: 153221 [2021-06-04 21:30:53,460 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 89.1ms TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-06-04 21:30:56,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153221 states. [2021-06-04 21:30:58,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153221 to 150836. [2021-06-04 21:30:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150836 states, 150809 states have (on average 4.2717676000769185) internal successors, (644221), 150835 states have internal predecessors, (644221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:59,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150836 states to 150836 states and 644221 transitions. [2021-06-04 21:30:59,342 INFO L78 Accepts]: Start accepts. Automaton has 150836 states and 644221 transitions. Word has length 91 [2021-06-04 21:30:59,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-04 21:30:59,343 INFO L482 AbstractCegarLoop]: Abstraction has 150836 states and 644221 transitions. [2021-06-04 21:30:59,343 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-04 21:30:59,343 INFO L276 IsEmpty]: Start isEmpty. Operand 150836 states and 644221 transitions. [2021-06-04 21:30:59,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-04 21:30:59,438 INFO L513 BasicCegarLoop]: Found error trace [2021-06-04 21:30:59,438 INFO L521 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-04 21:30:59,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-06-04 21:30:59,653 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-04 21:30:59,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-04 21:30:59,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1679649464, now seen corresponding path program 1 times [2021-06-04 21:30:59,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-04 21:30:59,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441365628] [2021-06-04 21:30:59,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-04 21:30:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-04 21:30:59,679 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-04 21:30:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-04 21:30:59,705 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-04 21:30:59,716 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-04 21:30:59,716 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-04 21:30:59,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-04 21:30:59,717 WARN L242 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-04 21:30:59,717 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-06-04 21:30:59,723 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,723 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,723 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,723 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,723 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,723 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,723 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,723 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,724 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,725 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,726 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,726 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,726 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,727 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,728 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,728 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,728 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,728 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,728 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,728 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,728 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,728 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,728 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,728 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,728 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,728 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,729 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,729 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,729 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,729 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,730 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,730 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,730 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,730 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,731 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,731 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,731 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,731 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,732 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,732 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,732 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,732 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,733 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,733 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,733 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,733 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-04 21:30:59,738 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-06-04 21:30:59,738 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-04 21:30:59,738 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-04 21:30:59,738 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-04 21:30:59,738 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-04 21:30:59,739 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-04 21:30:59,739 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-04 21:30:59,739 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-04 21:30:59,739 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-04 21:30:59,739 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-04 21:30:59,739 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122 places, 122 transitions, 322 flow Received shutdown request... [2021-06-04 21:41:27,935 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-04 21:41:27,936 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 6 thread instances [2021-06-04 21:41:27,938 WARN L196 ceAbstractionStarter]: Timeout [2021-06-04 21:41:27,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.06 09:41:27 BasicIcfg [2021-06-04 21:41:27,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-04 21:41:27,938 INFO L168 Benchmark]: Toolchain (without parser) took 842693.17 ms. Allocated memory was 346.0 MB in the beginning and 15.6 GB in the end (delta: 15.3 GB). Free memory was 306.9 MB in the beginning and 12.0 GB in the end (delta: -11.7 GB). Peak memory consumption was 9.5 GB. Max. memory is 16.0 GB. [2021-06-04 21:41:27,938 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 346.0 MB. Free memory was 326.6 MB in the beginning and 326.5 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-04 21:41:27,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.50 ms. Allocated memory is still 346.0 MB. Free memory was 306.8 MB in the beginning and 268.4 MB in the end (delta: 38.4 MB). Peak memory consumption was 41.3 MB. Max. memory is 16.0 GB. [2021-06-04 21:41:27,939 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.65 ms. Allocated memory is still 346.0 MB. Free memory was 268.4 MB in the beginning and 266.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-04 21:41:27,939 INFO L168 Benchmark]: Boogie Preprocessor took 28.13 ms. Allocated memory is still 346.0 MB. Free memory was 266.3 MB in the beginning and 265.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-04 21:41:27,939 INFO L168 Benchmark]: RCFGBuilder took 386.57 ms. Allocated memory is still 346.0 MB. Free memory was 264.2 MB in the beginning and 237.8 MB in the end (delta: 26.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-04 21:41:27,939 INFO L168 Benchmark]: TraceAbstraction took 841726.63 ms. Allocated memory was 346.0 MB in the beginning and 15.6 GB in the end (delta: 15.3 GB). Free memory was 237.0 MB in the beginning and 12.0 GB in the end (delta: -11.7 GB). Peak memory consumption was 9.4 GB. Max. memory is 16.0 GB. [2021-06-04 21:41:27,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 346.0 MB. Free memory was 326.6 MB in the beginning and 326.5 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 504.50 ms. Allocated memory is still 346.0 MB. Free memory was 306.8 MB in the beginning and 268.4 MB in the end (delta: 38.4 MB). Peak memory consumption was 41.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 43.65 ms. Allocated memory is still 346.0 MB. Free memory was 268.4 MB in the beginning and 266.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.13 ms. Allocated memory is still 346.0 MB. Free memory was 266.3 MB in the beginning and 265.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 386.57 ms. Allocated memory is still 346.0 MB. Free memory was 264.2 MB in the beginning and 237.8 MB in the end (delta: 26.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 841726.63 ms. Allocated memory was 346.0 MB in the beginning and 15.6 GB in the end (delta: 15.3 GB). Free memory was 237.0 MB in the beginning and 12.0 GB in the end (delta: -11.7 GB). Peak memory consumption was 9.4 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1130]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 122 places, 122 transitions, 322 flow. Already constructed 558668 states. Currently 50216 states in worklist.. - TimeoutResultAtElement [Line: 1111]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 122 places, 122 transitions, 322 flow. Already constructed 558668 states. Currently 50216 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 90 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 576.1ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 12.7ms, AutomataDifference: 104.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 38.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 149 SDtfs, 84 SDslu, 45 SDs, 0 SdLazy, 31 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 32.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.3ms SsaConstructionTime, 84.7ms SatisfiabilityAnalysisTime, 144.5ms InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 95 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 545.6ms, OverallIterations: 4, TraceHistogramMax: 3, EmptinessCheckTime: 8.8ms, AutomataDifference: 137.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 251 SDtfs, 181 SDslu, 184 SDs, 0 SdLazy, 91 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 53.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1538occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 76.4ms AutomataMinimizationTime, 3 MinimizatonAttempts, 93 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.4ms SsaConstructionTime, 59.1ms SatisfiabilityAnalysisTime, 127.7ms InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 318 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 100 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2085.5ms, OverallIterations: 5, TraceHistogramMax: 4, EmptinessCheckTime: 28.3ms, AutomataDifference: 479.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 229.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 372 SDtfs, 436 SDslu, 490 SDs, 0 SdLazy, 183 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 100.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 115.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8718occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 553.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 838 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.9ms SsaConstructionTime, 50.7ms SatisfiabilityAnalysisTime, 343.6ms InterpolantComputationTime, 387 NumberOfCodeBlocks, 387 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 792 SizeOfPredicates, 4 NumberOfNonLiveVariables, 177 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 6/8 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 - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 105 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11975.2ms, OverallIterations: 6, TraceHistogramMax: 5, EmptinessCheckTime: 88.8ms, AutomataDifference: 2052.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3629.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 532 SDtfs, 744 SDslu, 1117 SDs, 0 SdLazy, 346 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 169.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 197 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 166.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=50198occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4897.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 6048 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.6ms SsaConstructionTime, 80.9ms SatisfiabilityAnalysisTime, 490.1ms InterpolantComputationTime, 584 NumberOfCodeBlocks, 584 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 478 ConstructedInterpolants, 0 QuantifiedInterpolants, 1398 SizeOfPredicates, 10 NumberOfNonLiveVariables, 385 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 26/46 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 - StatisticsResult: Ultimate Automizer benchmark data with 5 thread instances CFG has 7 procedures, 110 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 198122.9ms, OverallIterations: 6, TraceHistogramMax: 6, EmptinessCheckTime: 436.8ms, AutomataDifference: 15007.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 140038.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 590 SDtfs, 868 SDslu, 1059 SDs, 0 SdLazy, 283 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 149.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 197 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 160.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=291078occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 40393.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 39673 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 34.1ms SsaConstructionTime, 82.5ms SatisfiabilityAnalysisTime, 1535.0ms InterpolantComputationTime, 599 NumberOfCodeBlocks, 599 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 478 ConstructedInterpolants, 0 QuantifiedInterpolants, 1346 SizeOfPredicates, 10 NumberOfNonLiveVariables, 385 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 26/46 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 - StatisticsResult: Ultimate Automizer benchmark data with 6 thread instances CFG has 8 procedures, 115 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 628196.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 628195.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown