./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 740b07d8f7e077f103517b1a935019a0d1d4c771 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:54:39,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:54:39,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:54:39,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:54:39,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:54:39,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:54:39,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:54:39,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:54:39,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:54:39,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:54:39,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:54:39,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:54:39,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:54:39,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:54:39,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:54:39,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:54:39,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:54:39,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:54:39,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:54:39,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:54:39,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:54:39,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:54:39,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:54:39,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:54:39,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:54:39,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:54:39,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:54:39,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:54:39,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:54:39,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:54:40,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:54:40,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:54:40,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:54:40,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:54:40,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:54:40,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:54:40,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:54:40,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:54:40,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:54:40,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:54:40,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:54:40,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:54:40,050 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:54:40,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:54:40,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:54:40,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:54:40,052 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:54:40,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:54:40,053 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:54:40,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:54:40,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:54:40,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:54:40,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:54:40,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:54:40,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:54:40,055 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:54:40,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:54:40,055 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:54:40,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:54:40,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:54:40,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:54:40,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:54:40,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:54:40,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:54:40,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:54:40,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:54:40,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:54:40,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:54:40,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:54:40,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:54:40,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:54:40,058 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:/tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 740b07d8f7e077f103517b1a935019a0d1d4c771 [2020-11-29 22:54:40,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:54:40,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:54:40,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:54:40,347 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:54:40,350 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:54:40,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2020-11-29 22:54:40,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/data/a291fbd53/50e6bd1902a347cfa9b56174dd17004e/FLAG3f2be93f0 [2020-11-29 22:54:41,033 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:54:41,033 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2020-11-29 22:54:41,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/data/a291fbd53/50e6bd1902a347cfa9b56174dd17004e/FLAG3f2be93f0 [2020-11-29 22:54:41,316 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/data/a291fbd53/50e6bd1902a347cfa9b56174dd17004e [2020-11-29 22:54:41,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:54:41,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:54:41,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:54:41,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:54:41,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:54:41,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:54:41" (1/1) ... [2020-11-29 22:54:41,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667b663f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41, skipping insertion in model container [2020-11-29 22:54:41,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:54:41" (1/1) ... [2020-11-29 22:54:41,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:54:41,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:54:41,595 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-29 22:54:41,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:54:41,780 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:54:41,804 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-29 22:54:41,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:54:41,928 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:54:41,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41 WrapperNode [2020-11-29 22:54:41,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:54:41,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:54:41,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:54:41,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:54:41,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41" (1/1) ... [2020-11-29 22:54:41,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41" (1/1) ... [2020-11-29 22:54:41,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:54:41,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:54:41,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:54:41,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:54:41,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41" (1/1) ... [2020-11-29 22:54:41,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41" (1/1) ... [2020-11-29 22:54:42,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41" (1/1) ... [2020-11-29 22:54:42,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41" (1/1) ... [2020-11-29 22:54:42,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41" (1/1) ... [2020-11-29 22:54:42,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41" (1/1) ... [2020-11-29 22:54:42,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41" (1/1) ... [2020-11-29 22:54:42,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:54:42,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:54:42,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:54:42,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:54:42,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:54:42,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 22:54:42,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 22:54:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-29 22:54:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2020-11-29 22:54:42,098 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2020-11-29 22:54:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:54:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:54:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:54:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-29 22:54:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:54:42,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:54:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2020-11-29 22:54:42,099 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2020-11-29 22:54:42,100 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-29 22:54:42,660 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:54:42,660 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 22:54:42,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:54:42 BoogieIcfgContainer [2020-11-29 22:54:42,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:54:42,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:54:42,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:54:42,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:54:42,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:54:41" (1/3) ... [2020-11-29 22:54:42,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555b8e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:54:42, skipping insertion in model container [2020-11-29 22:54:42,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:54:41" (2/3) ... [2020-11-29 22:54:42,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555b8e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:54:42, skipping insertion in model container [2020-11-29 22:54:42,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:54:42" (3/3) ... [2020-11-29 22:54:42,670 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2020-11-29 22:54:42,680 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-29 22:54:42,680 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:54:42,684 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:54:42,685 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-29 22:54:42,710 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,710 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,710 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,710 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,710 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,711 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,711 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,711 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,711 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,711 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,712 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,712 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,712 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,712 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,712 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,712 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,713 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,713 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,713 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,713 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,713 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,714 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,714 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,714 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,714 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,715 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,715 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,715 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,715 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,715 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,716 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,716 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,716 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,716 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,716 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,717 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,717 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,717 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,717 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,717 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,718 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,718 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,718 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,718 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,718 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,718 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,719 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,719 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,719 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,719 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,720 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,720 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,720 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,720 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,720 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,720 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,721 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,721 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,723 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,723 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,723 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,723 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,724 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,724 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,729 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,729 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,729 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,729 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,729 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,730 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,730 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,730 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,730 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,730 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,730 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,733 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,733 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,734 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,734 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,734 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,734 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,737 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,737 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,738 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,738 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,738 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,738 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,738 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,739 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,739 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,739 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,739 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:54:42,759 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2020-11-29 22:54:42,770 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-29 22:54:42,797 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:54:42,801 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:54:42,801 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:54:42,801 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:54:42,802 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:54:42,802 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:54:42,803 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:54:42,803 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:54:42,820 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-29 22:54:42,822 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 116 transitions, 300 flow [2020-11-29 22:54:42,831 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 116 transitions, 300 flow [2020-11-29 22:54:42,833 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions, 300 flow [2020-11-29 22:54:42,903 INFO L129 PetriNetUnfolder]: 21/150 cut-off events. [2020-11-29 22:54:42,903 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-11-29 22:54:42,909 INFO L80 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 150 events. 21/150 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 372 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 103. Up to 12 conditions per place. [2020-11-29 22:54:42,916 INFO L116 LiptonReduction]: Number of co-enabled transitions 3576 [2020-11-29 22:54:44,959 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-11-29 22:54:45,183 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-29 22:54:45,755 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-11-29 22:54:45,923 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 22:54:46,163 INFO L131 LiptonReduction]: Checked pairs total: 26892 [2020-11-29 22:54:46,163 INFO L133 LiptonReduction]: Total number of compositions: 90 [2020-11-29 22:54:46,168 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 59 transitions, 186 flow [2020-11-29 22:54:46,639 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5381 states. [2020-11-29 22:54:46,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5381 states. [2020-11-29 22:54:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 22:54:46,652 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:54:46,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:54:46,653 INFO L429 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-29 22:54:46,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:46,662 INFO L82 PathProgramCache]: Analyzing trace with hash 396347534, now seen corresponding path program 1 times [2020-11-29 22:54:46,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:46,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665592572] [2020-11-29 22:54:46,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:54:47,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:54:47,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665592572] [2020-11-29 22:54:47,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:54:47,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:54:47,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818265037] [2020-11-29 22:54:47,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:54:47,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:54:47,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:54:47,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:54:47,039 INFO L87 Difference]: Start difference. First operand 5381 states. Second operand 5 states. [2020-11-29 22:54:47,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:54:47,554 INFO L93 Difference]: Finished difference Result 12590 states and 42232 transitions. [2020-11-29 22:54:47,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:54:47,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-29 22:54:47,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:54:47,680 INFO L225 Difference]: With dead ends: 12590 [2020-11-29 22:54:47,681 INFO L226 Difference]: Without dead ends: 9892 [2020-11-29 22:54:47,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:54:47,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9892 states. [2020-11-29 22:54:48,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9892 to 5970. [2020-11-29 22:54:48,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5970 states. [2020-11-29 22:54:48,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5970 states to 5970 states and 20851 transitions. [2020-11-29 22:54:48,232 INFO L78 Accepts]: Start accepts. Automaton has 5970 states and 20851 transitions. Word has length 9 [2020-11-29 22:54:48,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:54:48,232 INFO L481 AbstractCegarLoop]: Abstraction has 5970 states and 20851 transitions. [2020-11-29 22:54:48,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:54:48,233 INFO L276 IsEmpty]: Start isEmpty. Operand 5970 states and 20851 transitions. [2020-11-29 22:54:48,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:54:48,242 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:54:48,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:54:48,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:54:48,242 INFO L429 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-29 22:54:48,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:48,246 INFO L82 PathProgramCache]: Analyzing trace with hash -629863298, now seen corresponding path program 1 times [2020-11-29 22:54:48,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:48,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140156862] [2020-11-29 22:54:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:54:48,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:54:48,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140156862] [2020-11-29 22:54:48,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:54:48,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:54:48,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773764194] [2020-11-29 22:54:48,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:54:48,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:54:48,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:54:48,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:54:48,352 INFO L87 Difference]: Start difference. First operand 5970 states and 20851 transitions. Second operand 3 states. [2020-11-29 22:54:48,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:54:48,418 INFO L93 Difference]: Finished difference Result 5110 states and 15907 transitions. [2020-11-29 22:54:48,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:54:48,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-29 22:54:48,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:54:48,478 INFO L225 Difference]: With dead ends: 5110 [2020-11-29 22:54:48,478 INFO L226 Difference]: Without dead ends: 5078 [2020-11-29 22:54:48,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:54:48,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5078 states. [2020-11-29 22:54:48,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5078 to 5078. [2020-11-29 22:54:48,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2020-11-29 22:54:48,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 15825 transitions. [2020-11-29 22:54:48,832 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 15825 transitions. Word has length 11 [2020-11-29 22:54:48,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:54:48,832 INFO L481 AbstractCegarLoop]: Abstraction has 5078 states and 15825 transitions. [2020-11-29 22:54:48,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:54:48,832 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 15825 transitions. [2020-11-29 22:54:48,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:54:48,834 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:54:48,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:54:48,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:54:48,835 INFO L429 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-29 22:54:48,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:48,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1243088368, now seen corresponding path program 2 times [2020-11-29 22:54:48,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:48,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128292406] [2020-11-29 22:54:48,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:54:48,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:54:48,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128292406] [2020-11-29 22:54:48,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:54:48,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:54:48,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946762559] [2020-11-29 22:54:48,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:54:48,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:54:48,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:54:48,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:54:48,919 INFO L87 Difference]: Start difference. First operand 5078 states and 15825 transitions. Second operand 4 states. [2020-11-29 22:54:48,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:54:48,988 INFO L93 Difference]: Finished difference Result 3610 states and 9112 transitions. [2020-11-29 22:54:48,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:54:48,989 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-29 22:54:48,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:54:49,004 INFO L225 Difference]: With dead ends: 3610 [2020-11-29 22:54:49,004 INFO L226 Difference]: Without dead ends: 3480 [2020-11-29 22:54:49,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:54:49,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2020-11-29 22:54:49,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 2892. [2020-11-29 22:54:49,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2892 states. [2020-11-29 22:54:49,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 7509 transitions. [2020-11-29 22:54:49,127 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 7509 transitions. Word has length 11 [2020-11-29 22:54:49,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:54:49,127 INFO L481 AbstractCegarLoop]: Abstraction has 2892 states and 7509 transitions. [2020-11-29 22:54:49,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:54:49,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 7509 transitions. [2020-11-29 22:54:49,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 22:54:49,130 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:54:49,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:54:49,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:54:49,131 INFO L429 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-29 22:54:49,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:49,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1742739460, now seen corresponding path program 1 times [2020-11-29 22:54:49,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:49,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23494713] [2020-11-29 22:54:49,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:54:49,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:54:49,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23494713] [2020-11-29 22:54:49,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:54:49,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:54:49,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454540884] [2020-11-29 22:54:49,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:54:49,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:54:49,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:54:49,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:54:49,237 INFO L87 Difference]: Start difference. First operand 2892 states and 7509 transitions. Second operand 5 states. [2020-11-29 22:54:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:54:49,469 INFO L93 Difference]: Finished difference Result 3951 states and 9968 transitions. [2020-11-29 22:54:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:54:49,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-29 22:54:49,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:54:49,480 INFO L225 Difference]: With dead ends: 3951 [2020-11-29 22:54:49,480 INFO L226 Difference]: Without dead ends: 3343 [2020-11-29 22:54:49,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:54:49,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3343 states. [2020-11-29 22:54:49,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3343 to 2611. [2020-11-29 22:54:49,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2611 states. [2020-11-29 22:54:49,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 6739 transitions. [2020-11-29 22:54:49,573 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 6739 transitions. Word has length 13 [2020-11-29 22:54:49,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:54:49,574 INFO L481 AbstractCegarLoop]: Abstraction has 2611 states and 6739 transitions. [2020-11-29 22:54:49,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:54:49,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 6739 transitions. [2020-11-29 22:54:49,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 22:54:49,575 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:54:49,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:54:49,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:54:49,576 INFO L429 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-29 22:54:49,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:49,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1595771696, now seen corresponding path program 1 times [2020-11-29 22:54:49,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:49,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796351841] [2020-11-29 22:54:49,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:54:49,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:54:49,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796351841] [2020-11-29 22:54:49,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:54:49,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:54:49,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355157642] [2020-11-29 22:54:49,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:54:49,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:54:49,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:54:49,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:54:49,664 INFO L87 Difference]: Start difference. First operand 2611 states and 6739 transitions. Second operand 5 states. [2020-11-29 22:54:49,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:54:49,869 INFO L93 Difference]: Finished difference Result 3368 states and 8509 transitions. [2020-11-29 22:54:49,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:54:49,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-29 22:54:49,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:54:49,878 INFO L225 Difference]: With dead ends: 3368 [2020-11-29 22:54:49,878 INFO L226 Difference]: Without dead ends: 3221 [2020-11-29 22:54:49,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:54:49,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3221 states. [2020-11-29 22:54:49,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3221 to 2336. [2020-11-29 22:54:49,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2336 states. [2020-11-29 22:54:49,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 5994 transitions. [2020-11-29 22:54:49,960 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 5994 transitions. Word has length 16 [2020-11-29 22:54:49,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:54:49,960 INFO L481 AbstractCegarLoop]: Abstraction has 2336 states and 5994 transitions. [2020-11-29 22:54:49,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:54:49,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 5994 transitions. [2020-11-29 22:54:49,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 22:54:49,962 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:54:49,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:54:49,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 22:54:49,962 INFO L429 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-29 22:54:49,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:49,963 INFO L82 PathProgramCache]: Analyzing trace with hash -2061616655, now seen corresponding path program 1 times [2020-11-29 22:54:49,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:49,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339427256] [2020-11-29 22:54:49,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:54:50,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:54:50,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339427256] [2020-11-29 22:54:50,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:54:50,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:54:50,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551031611] [2020-11-29 22:54:50,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:54:50,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:54:50,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:54:50,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:54:50,054 INFO L87 Difference]: Start difference. First operand 2336 states and 5994 transitions. Second operand 5 states. [2020-11-29 22:54:50,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:54:50,275 INFO L93 Difference]: Finished difference Result 2975 states and 7530 transitions. [2020-11-29 22:54:50,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:54:50,276 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-29 22:54:50,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:54:50,284 INFO L225 Difference]: With dead ends: 2975 [2020-11-29 22:54:50,284 INFO L226 Difference]: Without dead ends: 2697 [2020-11-29 22:54:50,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:54:50,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2020-11-29 22:54:50,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 1918. [2020-11-29 22:54:50,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1918 states. [2020-11-29 22:54:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 4913 transitions. [2020-11-29 22:54:50,360 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 4913 transitions. Word has length 16 [2020-11-29 22:54:50,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:54:50,361 INFO L481 AbstractCegarLoop]: Abstraction has 1918 states and 4913 transitions. [2020-11-29 22:54:50,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:54:50,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 4913 transitions. [2020-11-29 22:54:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 22:54:50,367 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:54:50,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:54:50,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 22:54:50,368 INFO L429 AbstractCegarLoop]: === Iteration 7 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-29 22:54:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:50,368 INFO L82 PathProgramCache]: Analyzing trace with hash -797921632, now seen corresponding path program 1 times [2020-11-29 22:54:50,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:50,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225455479] [2020-11-29 22:54:50,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:54:50,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:54:50,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225455479] [2020-11-29 22:54:50,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:54:50,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:54:50,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736156358] [2020-11-29 22:54:50,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:54:50,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:54:50,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:54:50,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:54:50,429 INFO L87 Difference]: Start difference. First operand 1918 states and 4913 transitions. Second operand 5 states. [2020-11-29 22:54:50,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:54:50,482 INFO L93 Difference]: Finished difference Result 2310 states and 5767 transitions. [2020-11-29 22:54:50,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:54:50,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-29 22:54:50,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:54:50,488 INFO L225 Difference]: With dead ends: 2310 [2020-11-29 22:54:50,489 INFO L226 Difference]: Without dead ends: 2030 [2020-11-29 22:54:50,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:54:50,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2020-11-29 22:54:50,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1854. [2020-11-29 22:54:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-11-29 22:54:50,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 4763 transitions. [2020-11-29 22:54:50,554 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 4763 transitions. Word has length 21 [2020-11-29 22:54:50,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:54:50,555 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 4763 transitions. [2020-11-29 22:54:50,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:54:50,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 4763 transitions. [2020-11-29 22:54:50,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 22:54:50,558 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:54:50,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:54:50,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 22:54:50,558 INFO L429 AbstractCegarLoop]: === Iteration 8 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-29 22:54:50,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:54:50,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1904003122, now seen corresponding path program 2 times [2020-11-29 22:54:50,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:54:50,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177442589] [2020-11-29 22:54:50,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:54:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:54:50,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:54:50,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177442589] [2020-11-29 22:54:50,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:54:50,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:54:50,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667782258] [2020-11-29 22:54:50,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:54:50,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:54:50,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:54:50,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:54:50,630 INFO L87 Difference]: Start difference. First operand 1854 states and 4763 transitions. Second operand 5 states. [2020-11-29 22:54:50,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:54:50,665 INFO L93 Difference]: Finished difference Result 726 states and 1649 transitions. [2020-11-29 22:54:50,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:54:50,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-29 22:54:50,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:54:50,666 INFO L225 Difference]: With dead ends: 726 [2020-11-29 22:54:50,666 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 22:54:50,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:54:50,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 22:54:50,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 22:54:50,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 22:54:50,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:54:50,667 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-29 22:54:50,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:54:50,667 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:54:50,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:54:50,668 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:54:50,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:54:50,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 22:54:50,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:54:50 BasicIcfg [2020-11-29 22:54:50,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:54:50,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:54:50,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:54:50,671 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:54:50,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:54:42" (3/4) ... [2020-11-29 22:54:50,677 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:54:50,682 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2020-11-29 22:54:50,683 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2020-11-29 22:54:50,689 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-11-29 22:54:50,689 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 22:54:50,689 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:54:50,689 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:54:50,737 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_edfdb8a0-fcb2-4bab-949b-c7ac02f7778e/bin/uautomizer/witness.graphml [2020-11-29 22:54:50,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:54:50,740 INFO L168 Benchmark]: Toolchain (without parser) took 9420.01 ms. Allocated memory was 96.5 MB in the beginning and 536.9 MB in the end (delta: 440.4 MB). Free memory was 69.0 MB in the beginning and 332.8 MB in the end (delta: -263.8 MB). Peak memory consumption was 176.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:50,740 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 96.5 MB. Free memory is still 54.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:54:50,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.78 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 69.0 MB in the beginning and 73.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:50,746 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.04 ms. Allocated memory is still 117.4 MB. Free memory was 73.9 MB in the beginning and 71.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:50,747 INFO L168 Benchmark]: Boogie Preprocessor took 45.79 ms. Allocated memory is still 117.4 MB. Free memory was 71.9 MB in the beginning and 70.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:54:50,747 INFO L168 Benchmark]: RCFGBuilder took 631.85 ms. Allocated memory is still 117.4 MB. Free memory was 70.3 MB in the beginning and 86.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:50,748 INFO L168 Benchmark]: TraceAbstraction took 8007.10 ms. Allocated memory was 117.4 MB in the beginning and 536.9 MB in the end (delta: 419.4 MB). Free memory was 85.6 MB in the beginning and 334.9 MB in the end (delta: -249.3 MB). Peak memory consumption was 171.0 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:50,748 INFO L168 Benchmark]: Witness Printer took 67.60 ms. Allocated memory is still 536.9 MB. Free memory was 334.9 MB in the beginning and 332.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:54:50,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 96.5 MB. Free memory is still 54.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 607.78 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 69.0 MB in the beginning and 73.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.04 ms. Allocated memory is still 117.4 MB. Free memory was 73.9 MB in the beginning and 71.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.79 ms. Allocated memory is still 117.4 MB. Free memory was 71.9 MB in the beginning and 70.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 631.85 ms. Allocated memory is still 117.4 MB. Free memory was 70.3 MB in the beginning and 86.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8007.10 ms. Allocated memory was 117.4 MB in the beginning and 536.9 MB in the end (delta: 419.4 MB). Free memory was 85.6 MB in the beginning and 334.9 MB in the end (delta: -249.3 MB). Peak memory consumption was 171.0 MB. Max. memory is 16.1 GB. * Witness Printer took 67.60 ms. Allocated memory is still 536.9 MB. Free memory was 334.9 MB in the beginning and 332.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3004 VarBasedMoverChecksPositive, 158 VarBasedMoverChecksNegative, 104 SemBasedMoverChecksPositive, 54 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 810 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.3s, 113 PlacesBefore, 58 PlacesAfterwards, 116 TransitionsBefore, 59 TransitionsAfterwards, 3576 CoEnabledTransitionPairs, 9 FixpointIterations, 27 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 90 TotalNumberOfCompositions, 26892 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 797 SDtfs, 818 SDslu, 1157 SDs, 0 SdLazy, 386 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5970occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 7082 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...