/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 12:55:23,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 12:55:23,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 12:55:23,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 12:55:23,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 12:55:23,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 12:55:23,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 12:55:23,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 12:55:23,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 12:55:23,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 12:55:23,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 12:55:23,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 12:55:23,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 12:55:23,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 12:55:23,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 12:55:23,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 12:55:23,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 12:55:23,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 12:55:23,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 12:55:23,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 12:55:23,314 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-Separate.epf [2021-06-05 12:55:23,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 12:55:23,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 12:55:23,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 12:55:23,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 12:55:23,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 12:55:23,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 12:55:23,352 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 12:55:23,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 12:55:23,353 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 12:55:23,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 12:55:23,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 12:55:23,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 12:55:23,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 12:55:23,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 12:55:23,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 12:55:23,354 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 12:55:23,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 12:55:23,354 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 12:55:23,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 12:55:23,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 12:55:23,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 12:55:23,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 12:55:23,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 12:55:23,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 12:55:23,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 12:55:23,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 12:55:23,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 12:55:23,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 12:55:23,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 12:55:23,356 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 12:55:23,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 12:55:23,356 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 12:55:23,357 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 12:55:23,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 12:55:23,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 12:55:23,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 12:55:23,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 12:55:23,684 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 12:55:23,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest2.c [2021-06-05 12:55:23,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e910a7cd/695fc183fa354767a04d482fa1673c05/FLAG61ec289cb [2021-06-05 12:55:24,213 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 12:55:24,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/ThreadIdTest2.c [2021-06-05 12:55:24,215 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 12:55:24,215 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 12:55:24,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e910a7cd/695fc183fa354767a04d482fa1673c05/FLAG61ec289cb [2021-06-05 12:55:24,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e910a7cd/695fc183fa354767a04d482fa1673c05 [2021-06-05 12:55:24,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 12:55:24,276 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 12:55:24,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 12:55:24,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 12:55:24,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 12:55:24,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:55:24" (1/1) ... [2021-06-05 12:55:24,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb87678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24, skipping insertion in model container [2021-06-05 12:55:24,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:55:24" (1/1) ... [2021-06-05 12:55:24,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 12:55:24,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 12:55:24,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 12:55:24,438 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 12:55:24,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 12:55:24,464 INFO L208 MainTranslator]: Completed translation [2021-06-05 12:55:24,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24 WrapperNode [2021-06-05 12:55:24,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 12:55:24,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 12:55:24,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 12:55:24,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 12:55:24,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24" (1/1) ... [2021-06-05 12:55:24,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24" (1/1) ... [2021-06-05 12:55:24,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 12:55:24,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 12:55:24,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 12:55:24,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 12:55:24,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24" (1/1) ... [2021-06-05 12:55:24,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24" (1/1) ... [2021-06-05 12:55:24,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24" (1/1) ... [2021-06-05 12:55:24,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24" (1/1) ... [2021-06-05 12:55:24,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24" (1/1) ... [2021-06-05 12:55:24,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24" (1/1) ... [2021-06-05 12:55:24,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24" (1/1) ... [2021-06-05 12:55:24,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 12:55:24,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 12:55:24,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 12:55:24,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 12:55:24,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24" (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 [2021-06-05 12:55:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 12:55:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2021-06-05 12:55:24,600 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2021-06-05 12:55:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 12:55:24,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 12:55:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 12:55:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 12:55:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 12:55:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2021-06-05 12:55:24,602 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2021-06-05 12:55:24,603 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 12:55:24,895 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 12:55:24,896 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-05 12:55:24,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:55:24 BoogieIcfgContainer [2021-06-05 12:55:24,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 12:55:24,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 12:55:24,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 12:55:24,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 12:55:24,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:55:24" (1/3) ... [2021-06-05 12:55:24,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4313137c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:55:24, skipping insertion in model container [2021-06-05 12:55:24,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:55:24" (2/3) ... [2021-06-05 12:55:24,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4313137c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:55:24, skipping insertion in model container [2021-06-05 12:55:24,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:55:24" (3/3) ... [2021-06-05 12:55:24,903 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest2.c [2021-06-05 12:55:24,925 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 12:55:24,925 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 12:55:24,925 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 12:55:24,926 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 12:55:24,947 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,947 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,947 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,947 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,947 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,947 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,948 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,948 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,948 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,948 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,948 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,948 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,949 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,949 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,949 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,949 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,949 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,949 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,950 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,950 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,950 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,950 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,950 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,950 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,951 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,951 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,951 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,951 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,951 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,951 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,952 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,952 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,952 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,952 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,952 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,952 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,954 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,954 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,955 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,955 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,955 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,960 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,960 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,960 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,960 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,960 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:55:24,966 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-05 12:55:24,986 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 12:55:25,003 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 12:55:25,003 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 12:55:25,004 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 12:55:25,004 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 12:55:25,004 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 12:55:25,005 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 12:55:25,005 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 12:55:25,005 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 12:55:25,022 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 48 transitions, 112 flow [2021-06-05 12:55:25,072 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 418 states, 414 states have (on average 2.13768115942029) internal successors, (885), 417 states have internal predecessors, (885), 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) [2021-06-05 12:55:25,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 418 states, 414 states have (on average 2.13768115942029) internal successors, (885), 417 states have internal predecessors, (885), 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) [2021-06-05 12:55:25,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 12:55:25,099 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:55:25,099 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] [2021-06-05 12:55:25,100 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:55:25,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:55:25,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1701017488, now seen corresponding path program 1 times [2021-06-05 12:55:25,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:55:25,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179353521] [2021-06-05 12:55:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:55:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:55:25,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:55:25,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:55:25,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179353521] [2021-06-05 12:55:25,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179353521] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:55:25,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:55:25,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 12:55:25,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479377479] [2021-06-05 12:55:25,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 12:55:25,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:55:25,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 12:55:25,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 12:55:25,344 INFO L87 Difference]: Start difference. First operand has 418 states, 414 states have (on average 2.13768115942029) internal successors, (885), 417 states have internal predecessors, (885), 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 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-06-05 12:55:25,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:55:25,408 INFO L93 Difference]: Finished difference Result 484 states and 991 transitions. [2021-06-05 12:55:25,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 12:55:25,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-06-05 12:55:25,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:55:25,424 INFO L225 Difference]: With dead ends: 484 [2021-06-05 12:55:25,424 INFO L226 Difference]: Without dead ends: 220 [2021-06-05 12:55:25,425 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 12:55:25,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-06-05 12:55:25,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-06-05 12:55:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 2.0596330275229358) internal successors, (449), 219 states have internal predecessors, (449), 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) [2021-06-05 12:55:25,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 449 transitions. [2021-06-05 12:55:25,486 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 449 transitions. Word has length 31 [2021-06-05 12:55:25,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:55:25,487 INFO L482 AbstractCegarLoop]: Abstraction has 220 states and 449 transitions. [2021-06-05 12:55:25,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-06-05 12:55:25,488 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 449 transitions. [2021-06-05 12:55:25,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 12:55:25,492 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:55:25,495 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] [2021-06-05 12:55:25,496 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 12:55:25,496 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:55:25,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:55:25,503 INFO L82 PathProgramCache]: Analyzing trace with hash 407944679, now seen corresponding path program 1 times [2021-06-05 12:55:25,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:55:25,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029945019] [2021-06-05 12:55:25,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:55:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:55:25,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:55:25,601 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:55:25,601 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029945019] [2021-06-05 12:55:25,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029945019] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:55:25,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:55:25,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 12:55:25,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358091444] [2021-06-05 12:55:25,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 12:55:25,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:55:25,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 12:55:25,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 12:55:25,608 INFO L87 Difference]: Start difference. First operand 220 states and 449 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-06-05 12:55:25,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:55:25,670 INFO L93 Difference]: Finished difference Result 244 states and 481 transitions. [2021-06-05 12:55:25,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 12:55:25,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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 34 [2021-06-05 12:55:25,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:55:25,674 INFO L225 Difference]: With dead ends: 244 [2021-06-05 12:55:25,674 INFO L226 Difference]: Without dead ends: 221 [2021-06-05 12:55:25,675 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 28.4ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 12:55:25,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-06-05 12:55:25,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 220. [2021-06-05 12:55:25,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 1.9770642201834863) internal successors, (431), 219 states have internal predecessors, (431), 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) [2021-06-05 12:55:25,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 431 transitions. [2021-06-05 12:55:25,691 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 431 transitions. Word has length 34 [2021-06-05 12:55:25,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:55:25,692 INFO L482 AbstractCegarLoop]: Abstraction has 220 states and 431 transitions. [2021-06-05 12:55:25,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-06-05 12:55:25,692 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 431 transitions. [2021-06-05 12:55:25,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 12:55:25,693 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:55:25,693 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] [2021-06-05 12:55:25,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 12:55:25,693 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:55:25,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:55:25,694 INFO L82 PathProgramCache]: Analyzing trace with hash 826116785, now seen corresponding path program 2 times [2021-06-05 12:55:25,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:55:25,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421684936] [2021-06-05 12:55:25,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:55:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:55:25,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:55:25,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:55:25,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421684936] [2021-06-05 12:55:25,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421684936] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:55:25,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:55:25,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 12:55:25,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970861105] [2021-06-05 12:55:25,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 12:55:25,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:55:25,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 12:55:25,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-05 12:55:25,742 INFO L87 Difference]: Start difference. First operand 220 states and 431 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-06-05 12:55:25,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:55:25,780 INFO L93 Difference]: Finished difference Result 225 states and 435 transitions. [2021-06-05 12:55:25,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 12:55:25,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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 34 [2021-06-05 12:55:25,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:55:25,782 INFO L225 Difference]: With dead ends: 225 [2021-06-05 12:55:25,782 INFO L226 Difference]: Without dead ends: 158 [2021-06-05 12:55:25,782 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.4ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-06-05 12:55:25,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-06-05 12:55:25,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-06-05 12:55:25,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 156 states have (on average 1.9294871794871795) internal successors, (301), 157 states have internal predecessors, (301), 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) [2021-06-05 12:55:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 301 transitions. [2021-06-05 12:55:25,789 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 301 transitions. Word has length 34 [2021-06-05 12:55:25,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:55:25,790 INFO L482 AbstractCegarLoop]: Abstraction has 158 states and 301 transitions. [2021-06-05 12:55:25,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-06-05 12:55:25,790 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 301 transitions. [2021-06-05 12:55:25,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 12:55:25,791 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:55:25,791 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] [2021-06-05 12:55:25,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 12:55:25,791 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:55:25,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:55:25,792 INFO L82 PathProgramCache]: Analyzing trace with hash 244222823, now seen corresponding path program 3 times [2021-06-05 12:55:25,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:55:25,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38331931] [2021-06-05 12:55:25,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:55:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:55:25,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:55:25,921 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:55:25,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38331931] [2021-06-05 12:55:25,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38331931] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:55:25,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:55:25,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 12:55:25,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116005540] [2021-06-05 12:55:25,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 12:55:25,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:55:25,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 12:55:25,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 12:55:25,923 INFO L87 Difference]: Start difference. First operand 158 states and 301 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-06-05 12:55:26,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:55:26,008 INFO L93 Difference]: Finished difference Result 189 states and 350 transitions. [2021-06-05 12:55:26,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 12:55:26,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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 34 [2021-06-05 12:55:26,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:55:26,011 INFO L225 Difference]: With dead ends: 189 [2021-06-05 12:55:26,011 INFO L226 Difference]: Without dead ends: 166 [2021-06-05 12:55:26,012 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 67.6ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-05 12:55:26,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-06-05 12:55:26,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 162. [2021-06-05 12:55:26,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 1.925) internal successors, (308), 161 states have internal predecessors, (308), 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) [2021-06-05 12:55:26,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 308 transitions. [2021-06-05 12:55:26,019 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 308 transitions. Word has length 34 [2021-06-05 12:55:26,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:55:26,019 INFO L482 AbstractCegarLoop]: Abstraction has 162 states and 308 transitions. [2021-06-05 12:55:26,019 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-06-05 12:55:26,019 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 308 transitions. [2021-06-05 12:55:26,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 12:55:26,020 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:55:26,020 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] [2021-06-05 12:55:26,020 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 12:55:26,020 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:55:26,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:55:26,021 INFO L82 PathProgramCache]: Analyzing trace with hash 780190496, now seen corresponding path program 1 times [2021-06-05 12:55:26,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:55:26,021 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118111845] [2021-06-05 12:55:26,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:55:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:55:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:55:26,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:55:26,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118111845] [2021-06-05 12:55:26,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118111845] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:55:26,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:55:26,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 12:55:26,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812624961] [2021-06-05 12:55:26,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 12:55:26,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:55:26,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 12:55:26,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-06-05 12:55:26,326 INFO L87 Difference]: Start difference. First operand 162 states and 308 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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) [2021-06-05 12:55:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:55:26,595 INFO L93 Difference]: Finished difference Result 145 states and 282 transitions. [2021-06-05 12:55:26,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 12:55:26,596 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 34 [2021-06-05 12:55:26,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:55:26,598 INFO L225 Difference]: With dead ends: 145 [2021-06-05 12:55:26,598 INFO L226 Difference]: Without dead ends: 79 [2021-06-05 12:55:26,599 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 329.9ms TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2021-06-05 12:55:26,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-06-05 12:55:26,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-06-05 12:55:26,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.6025641025641026) internal successors, (125), 78 states have internal predecessors, (125), 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) [2021-06-05 12:55:26,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 125 transitions. [2021-06-05 12:55:26,613 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 125 transitions. Word has length 34 [2021-06-05 12:55:26,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:55:26,614 INFO L482 AbstractCegarLoop]: Abstraction has 79 states and 125 transitions. [2021-06-05 12:55:26,614 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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) [2021-06-05 12:55:26,614 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 125 transitions. [2021-06-05 12:55:26,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 12:55:26,615 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:55:26,615 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] [2021-06-05 12:55:26,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 12:55:26,615 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:55:26,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:55:26,616 INFO L82 PathProgramCache]: Analyzing trace with hash -241846119, now seen corresponding path program 4 times [2021-06-05 12:55:26,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:55:26,616 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795546911] [2021-06-05 12:55:26,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:55:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:55:26,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:55:26,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:55:26,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795546911] [2021-06-05 12:55:26,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795546911] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:55:26,688 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:55:26,688 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 12:55:26,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041583183] [2021-06-05 12:55:26,689 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 12:55:26,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:55:26,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 12:55:26,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 12:55:26,690 INFO L87 Difference]: Start difference. First operand 79 states and 125 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-06-05 12:55:26,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:55:26,753 INFO L93 Difference]: Finished difference Result 75 states and 118 transitions. [2021-06-05 12:55:26,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 12:55:26,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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 34 [2021-06-05 12:55:26,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:55:26,754 INFO L225 Difference]: With dead ends: 75 [2021-06-05 12:55:26,754 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 12:55:26,755 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 67.8ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-05 12:55:26,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 12:55:26,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 12:55:26,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 12:55:26,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 12:55:26,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2021-06-05 12:55:26,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:55:26,757 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 12:55:26,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-06-05 12:55:26,757 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 12:55:26,757 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 12:55:26,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 12:55:26,759 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 12:55:26,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:55:26 BasicIcfg [2021-06-05 12:55:26,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 12:55:26,766 INFO L168 Benchmark]: Toolchain (without parser) took 2486.41 ms. Allocated memory is still 360.7 MB. Free memory was 323.2 MB in the beginning and 136.0 MB in the end (delta: 187.2 MB). Peak memory consumption was 185.4 MB. Max. memory is 16.0 GB. [2021-06-05 12:55:26,767 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 360.7 MB. Free memory was 341.7 MB in the beginning and 341.6 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 12:55:26,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.84 ms. Allocated memory is still 360.7 MB. Free memory was 322.9 MB in the beginning and 344.6 MB in the end (delta: -21.7 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 12:55:26,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.41 ms. Allocated memory is still 360.7 MB. Free memory was 344.6 MB in the beginning and 343.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 12:55:26,768 INFO L168 Benchmark]: Boogie Preprocessor took 14.42 ms. Allocated memory is still 360.7 MB. Free memory was 343.6 MB in the beginning and 342.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 12:55:26,769 INFO L168 Benchmark]: RCFGBuilder took 372.58 ms. Allocated memory is still 360.7 MB. Free memory was 342.3 MB in the beginning and 324.7 MB in the end (delta: 17.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-06-05 12:55:26,772 INFO L168 Benchmark]: TraceAbstraction took 1863.05 ms. Allocated memory is still 360.7 MB. Free memory was 323.7 MB in the beginning and 136.0 MB in the end (delta: 187.7 MB). Peak memory consumption was 186.6 MB. Max. memory is 16.0 GB. [2021-06-05 12:55:26,778 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 360.7 MB. Free memory was 341.7 MB in the beginning and 341.6 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 188.84 ms. Allocated memory is still 360.7 MB. Free memory was 322.9 MB in the beginning and 344.6 MB in the end (delta: -21.7 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 41.41 ms. Allocated memory is still 360.7 MB. Free memory was 344.6 MB in the beginning and 343.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.42 ms. Allocated memory is still 360.7 MB. Free memory was 343.6 MB in the beginning and 342.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 372.58 ms. Allocated memory is still 360.7 MB. Free memory was 342.3 MB in the beginning and 324.7 MB in the end (delta: 17.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1863.05 ms. Allocated memory is still 360.7 MB. Free memory was 323.7 MB in the beginning and 136.0 MB in the end (delta: 187.7 MB). Peak memory consumption was 186.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 37]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 64 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1757.1ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 33.6ms, AutomataDifference: 634.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 66.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 289 SDtfs, 214 SDslu, 837 SDs, 0 SdLazy, 258 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 178.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 524.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=418occurred in iteration=0, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 92.9ms AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.8ms SsaConstructionTime, 130.9ms SatisfiabilityAnalysisTime, 617.6ms InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 195 ConstructedInterpolants, 0 QuantifiedInterpolants, 916 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...