./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.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_5f8ad703-247b-4cc0-8a80-56f57917fb5b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/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 4813f1ecdee15758ab36c7ea84ae454e7bf08642 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:22:40,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:22:40,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:22:40,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:22:40,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:22:40,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:22:40,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:22:40,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:22:40,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:22:40,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:22:40,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:22:40,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:22:40,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:22:40,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:22:40,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:22:40,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:22:40,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:22:40,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:22:40,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:22:40,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:22:40,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:22:40,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:22:40,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:22:40,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:22:40,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:22:40,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:22:40,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:22:40,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:22:40,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:22:40,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:22:40,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:22:40,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:22:40,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:22:40,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:22:40,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:22:40,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:22:40,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:22:40,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:22:40,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:22:40,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:22:40,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:22:40,810 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:22:40,840 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:22:40,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:22:40,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:22:40,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:22:40,843 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:22:40,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:22:40,843 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:22:40,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:22:40,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:22:40,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:22:40,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:22:40,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:22:40,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:22:40,846 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:22:40,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:22:40,846 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:22:40,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:22:40,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:22:40,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:22:40,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:22:40,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:22:40,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:22:40,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:22:40,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:22:40,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:22:40,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:22:40,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:22:40,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:22:40,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:22:40,849 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_5f8ad703-247b-4cc0-8a80-56f57917fb5b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4813f1ecdee15758ab36c7ea84ae454e7bf08642 [2020-11-29 22:22:41,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:22:41,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:22:41,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:22:41,177 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:22:41,178 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:22:41,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/bin/uautomizer/../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2020-11-29 22:22:41,268 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/bin/uautomizer/data/800ef3850/88a37305efec445b96247ed158b6e7bf/FLAGdc116aa7b [2020-11-29 22:22:41,860 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:22:41,861 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2020-11-29 22:22:41,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/bin/uautomizer/data/800ef3850/88a37305efec445b96247ed158b6e7bf/FLAGdc116aa7b [2020-11-29 22:22:42,111 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/bin/uautomizer/data/800ef3850/88a37305efec445b96247ed158b6e7bf [2020-11-29 22:22:42,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:22:42,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:22:42,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:22:42,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:22:42,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:22:42,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:22:42" (1/1) ... [2020-11-29 22:22:42,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bfe4cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:42, skipping insertion in model container [2020-11-29 22:22:42,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:22:42" (1/1) ... [2020-11-29 22:22:42,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:22:42,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:22:42,491 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-29 22:22:42,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:22:42,843 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:22:42,871 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-29 22:22:42,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:22:43,146 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:22:43,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:43 WrapperNode [2020-11-29 22:22:43,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:22:43,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:22:43,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:22:43,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:22:43,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:43" (1/1) ... [2020-11-29 22:22:43,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:43" (1/1) ... [2020-11-29 22:22:43,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:22:43,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:22:43,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:22:43,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:22:43,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:43" (1/1) ... [2020-11-29 22:22:43,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:43" (1/1) ... [2020-11-29 22:22:43,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:43" (1/1) ... [2020-11-29 22:22:43,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:43" (1/1) ... [2020-11-29 22:22:43,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:43" (1/1) ... [2020-11-29 22:22:43,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:43" (1/1) ... [2020-11-29 22:22:43,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:43" (1/1) ... [2020-11-29 22:22:43,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:22:43,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:22:43,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:22:43,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:22:43,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/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 22:22:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-29 22:22:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:22:43,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:22:43,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-29 22:22:43,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 22:22:43,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2020-11-29 22:22:43,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2020-11-29 22:22:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-11-29 22:22:43,355 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-11-29 22:22:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-11-29 22:22:43,355 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-11-29 22:22:43,355 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-11-29 22:22:43,356 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-11-29 22:22:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 22:22:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 22:22:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:22:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:22:43,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:22:43,358 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 22:22:43,851 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:22:43,851 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 22:22:43,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:22:43 BoogieIcfgContainer [2020-11-29 22:22:43,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:22:43,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:22:43,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:22:43,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:22:43,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:22:42" (1/3) ... [2020-11-29 22:22:43,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d918e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:22:43, skipping insertion in model container [2020-11-29 22:22:43,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:22:43" (2/3) ... [2020-11-29 22:22:43,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d918e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:22:43, skipping insertion in model container [2020-11-29 22:22:43,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:22:43" (3/3) ... [2020-11-29 22:22:43,861 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2020-11-29 22:22:43,871 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-29 22:22:43,872 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:22:43,876 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:22:43,877 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-29 22:22:43,911 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,912 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,912 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,912 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,913 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,913 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,913 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,913 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,915 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,915 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,915 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,915 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,916 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,916 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,916 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,917 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,917 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,918 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,918 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,918 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,918 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,919 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,919 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,919 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,919 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,920 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,920 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,920 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,920 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,921 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,921 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,921 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,921 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,922 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,922 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,922 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,922 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,923 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,923 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,923 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,923 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,924 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,924 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,924 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,924 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,925 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,925 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,925 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,925 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,925 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,926 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,926 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,926 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,926 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,926 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,927 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,927 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,927 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,927 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,928 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,928 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,928 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,928 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,929 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,929 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,929 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,929 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,929 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,931 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,931 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,931 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,931 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,932 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,932 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,932 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,932 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,933 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,933 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,933 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,933 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,934 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,934 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,934 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,934 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,934 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,935 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,935 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,935 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,935 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,936 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,936 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,936 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,938 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,939 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,939 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,939 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,948 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,948 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,948 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,948 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,950 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,951 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,951 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,951 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,956 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,956 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,956 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,956 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,956 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,956 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,958 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,958 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,958 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,959 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,959 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,959 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,959 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,959 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,960 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,960 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,960 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,960 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,960 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,960 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,960 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,960 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,961 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,961 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,961 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,961 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,961 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,961 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,961 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,961 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,965 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,965 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,965 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,965 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,983 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,983 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,983 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,984 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,996 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,996 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,996 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:43,997 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,010 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,010 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,010 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,010 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,012 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,013 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,013 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,013 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,019 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,019 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,020 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,020 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 22:22:44,278 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2020-11-29 22:22:44,292 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-11-29 22:22:44,326 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:22:44,326 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:22:44,326 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:22:44,326 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:22:44,326 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:22:44,326 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:22:44,326 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:22:44,327 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:22:44,343 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-29 22:22:44,345 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 186 places, 259 transitions, 898 flow [2020-11-29 22:22:44,348 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 186 places, 259 transitions, 898 flow [2020-11-29 22:22:44,350 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 186 places, 259 transitions, 898 flow [2020-11-29 22:22:44,408 INFO L129 PetriNetUnfolder]: 10/124 cut-off events. [2020-11-29 22:22:44,409 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-11-29 22:22:44,418 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 124 events. 10/124 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 185 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 144. Up to 5 conditions per place. [2020-11-29 22:22:44,425 INFO L116 LiptonReduction]: Number of co-enabled transitions 1648 [2020-11-29 22:22:46,531 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-11-29 22:22:47,298 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-11-29 22:22:47,589 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-11-29 22:22:47,721 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-11-29 22:22:48,030 INFO L131 LiptonReduction]: Checked pairs total: 22144 [2020-11-29 22:22:48,031 INFO L133 LiptonReduction]: Total number of compositions: 94 [2020-11-29 22:22:48,038 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 176 transitions, 732 flow [2020-11-29 22:22:48,190 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 998 states. [2020-11-29 22:22:48,193 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states. [2020-11-29 22:22:48,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:22:48,198 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:48,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:48,199 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:48,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:48,206 INFO L82 PathProgramCache]: Analyzing trace with hash -299289812, now seen corresponding path program 1 times [2020-11-29 22:22:48,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:48,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703416759] [2020-11-29 22:22:48,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:48,513 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 22:22:48,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703416759] [2020-11-29 22:22:48,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:48,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:22:48,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426791252] [2020-11-29 22:22:48,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:22:48,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:48,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:22:48,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:22:48,551 INFO L87 Difference]: Start difference. First operand 998 states. Second operand 5 states. [2020-11-29 22:22:48,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:48,773 INFO L93 Difference]: Finished difference Result 1381 states and 4916 transitions. [2020-11-29 22:22:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:22:48,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-29 22:22:48,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:48,812 INFO L225 Difference]: With dead ends: 1381 [2020-11-29 22:22:48,812 INFO L226 Difference]: Without dead ends: 1082 [2020-11-29 22:22:48,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:22:48,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2020-11-29 22:22:48,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 785. [2020-11-29 22:22:48,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-11-29 22:22:48,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 2806 transitions. [2020-11-29 22:22:48,957 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 2806 transitions. Word has length 10 [2020-11-29 22:22:48,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:48,958 INFO L481 AbstractCegarLoop]: Abstraction has 785 states and 2806 transitions. [2020-11-29 22:22:48,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:22:48,959 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 2806 transitions. [2020-11-29 22:22:48,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:22:48,960 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:48,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:48,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:22:48,960 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:48,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:48,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1610347620, now seen corresponding path program 2 times [2020-11-29 22:22:48,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:48,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462908305] [2020-11-29 22:22:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:49,070 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 22:22:49,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462908305] [2020-11-29 22:22:49,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:49,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:22:49,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097119495] [2020-11-29 22:22:49,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:22:49,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:49,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:22:49,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:22:49,073 INFO L87 Difference]: Start difference. First operand 785 states and 2806 transitions. Second operand 3 states. [2020-11-29 22:22:49,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:49,090 INFO L93 Difference]: Finished difference Result 841 states and 2942 transitions. [2020-11-29 22:22:49,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:22:49,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-29 22:22:49,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:49,099 INFO L225 Difference]: With dead ends: 841 [2020-11-29 22:22:49,100 INFO L226 Difference]: Without dead ends: 785 [2020-11-29 22:22:49,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 22:22:49,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2020-11-29 22:22:49,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 785. [2020-11-29 22:22:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-11-29 22:22:49,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 2750 transitions. [2020-11-29 22:22:49,139 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 2750 transitions. Word has length 10 [2020-11-29 22:22:49,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:49,139 INFO L481 AbstractCegarLoop]: Abstraction has 785 states and 2750 transitions. [2020-11-29 22:22:49,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:22:49,139 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 2750 transitions. [2020-11-29 22:22:49,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:22:49,140 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:49,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:49,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:22:49,141 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:49,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:49,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1619146835, now seen corresponding path program 1 times [2020-11-29 22:22:49,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:49,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89004677] [2020-11-29 22:22:49,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:49,299 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 22:22:49,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89004677] [2020-11-29 22:22:49,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:49,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:22:49,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360658818] [2020-11-29 22:22:49,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:22:49,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:49,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:22:49,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:22:49,303 INFO L87 Difference]: Start difference. First operand 785 states and 2750 transitions. Second operand 6 states. [2020-11-29 22:22:49,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:49,563 INFO L93 Difference]: Finished difference Result 1086 states and 3783 transitions. [2020-11-29 22:22:49,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:22:49,564 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-29 22:22:49,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:49,575 INFO L225 Difference]: With dead ends: 1086 [2020-11-29 22:22:49,575 INFO L226 Difference]: Without dead ends: 1086 [2020-11-29 22:22:49,576 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 22:22:49,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2020-11-29 22:22:49,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 785. [2020-11-29 22:22:49,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-11-29 22:22:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 2750 transitions. [2020-11-29 22:22:49,619 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 2750 transitions. Word has length 11 [2020-11-29 22:22:49,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:49,620 INFO L481 AbstractCegarLoop]: Abstraction has 785 states and 2750 transitions. [2020-11-29 22:22:49,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:22:49,620 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 2750 transitions. [2020-11-29 22:22:49,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:22:49,621 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:49,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:49,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:22:49,621 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:49,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:49,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1363243349, now seen corresponding path program 2 times [2020-11-29 22:22:49,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:49,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878133785] [2020-11-29 22:22:49,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:49,718 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 22:22:49,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878133785] [2020-11-29 22:22:49,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:49,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:22:49,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314622483] [2020-11-29 22:22:49,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:22:49,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:49,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:22:49,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:22:49,720 INFO L87 Difference]: Start difference. First operand 785 states and 2750 transitions. Second operand 6 states. [2020-11-29 22:22:49,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:49,923 INFO L93 Difference]: Finished difference Result 1371 states and 4791 transitions. [2020-11-29 22:22:49,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:22:49,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-29 22:22:49,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:49,938 INFO L225 Difference]: With dead ends: 1371 [2020-11-29 22:22:49,939 INFO L226 Difference]: Without dead ends: 1371 [2020-11-29 22:22:49,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:22:49,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2020-11-29 22:22:49,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 770. [2020-11-29 22:22:49,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 770 states. [2020-11-29 22:22:49,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 2726 transitions. [2020-11-29 22:22:49,982 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 2726 transitions. Word has length 11 [2020-11-29 22:22:49,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:49,984 INFO L481 AbstractCegarLoop]: Abstraction has 770 states and 2726 transitions. [2020-11-29 22:22:49,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:22:49,984 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 2726 transitions. [2020-11-29 22:22:49,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 22:22:49,995 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:49,995 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, 1, 1, 1] [2020-11-29 22:22:49,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:22:49,995 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:49,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:49,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1709084529, now seen corresponding path program 1 times [2020-11-29 22:22:49,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:49,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244658712] [2020-11-29 22:22:49,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:50,132 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 22:22:50,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244658712] [2020-11-29 22:22:50,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:50,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:22:50,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013934317] [2020-11-29 22:22:50,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:22:50,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:50,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:22:50,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:22:50,134 INFO L87 Difference]: Start difference. First operand 770 states and 2726 transitions. Second operand 5 states. [2020-11-29 22:22:50,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:50,284 INFO L93 Difference]: Finished difference Result 1018 states and 3463 transitions. [2020-11-29 22:22:50,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:22:50,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-29 22:22:50,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:50,292 INFO L225 Difference]: With dead ends: 1018 [2020-11-29 22:22:50,292 INFO L226 Difference]: Without dead ends: 769 [2020-11-29 22:22:50,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:22:50,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-11-29 22:22:50,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 769. [2020-11-29 22:22:50,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-11-29 22:22:50,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 2724 transitions. [2020-11-29 22:22:50,355 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 2724 transitions. Word has length 24 [2020-11-29 22:22:50,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:50,356 INFO L481 AbstractCegarLoop]: Abstraction has 769 states and 2724 transitions. [2020-11-29 22:22:50,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:22:50,356 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 2724 transitions. [2020-11-29 22:22:50,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 22:22:50,359 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:50,359 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, 1, 1, 1] [2020-11-29 22:22:50,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 22:22:50,360 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:50,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:50,360 INFO L82 PathProgramCache]: Analyzing trace with hash -2020757561, now seen corresponding path program 2 times [2020-11-29 22:22:50,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:50,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542557047] [2020-11-29 22:22:50,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:50,442 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 22:22:50,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542557047] [2020-11-29 22:22:50,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:50,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:22:50,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475231694] [2020-11-29 22:22:50,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:22:50,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:50,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:22:50,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:22:50,444 INFO L87 Difference]: Start difference. First operand 769 states and 2724 transitions. Second operand 4 states. [2020-11-29 22:22:50,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:50,565 INFO L93 Difference]: Finished difference Result 1017 states and 3380 transitions. [2020-11-29 22:22:50,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:22:50,565 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-29 22:22:50,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:50,572 INFO L225 Difference]: With dead ends: 1017 [2020-11-29 22:22:50,572 INFO L226 Difference]: Without dead ends: 689 [2020-11-29 22:22:50,573 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 22:22:50,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2020-11-29 22:22:50,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 541. [2020-11-29 22:22:50,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-11-29 22:22:50,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 1774 transitions. [2020-11-29 22:22:50,599 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 1774 transitions. Word has length 24 [2020-11-29 22:22:50,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:50,601 INFO L481 AbstractCegarLoop]: Abstraction has 541 states and 1774 transitions. [2020-11-29 22:22:50,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:22:50,601 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 1774 transitions. [2020-11-29 22:22:50,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 22:22:50,604 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:50,604 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, 1, 1, 1, 1, 1] [2020-11-29 22:22:50,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 22:22:50,604 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:50,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:50,605 INFO L82 PathProgramCache]: Analyzing trace with hash 529385078, now seen corresponding path program 1 times [2020-11-29 22:22:50,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:50,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427792206] [2020-11-29 22:22:50,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:50,684 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 22:22:50,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427792206] [2020-11-29 22:22:50,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:50,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:22:50,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914173013] [2020-11-29 22:22:50,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:22:50,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:50,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:22:50,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:22:50,686 INFO L87 Difference]: Start difference. First operand 541 states and 1774 transitions. Second operand 4 states. [2020-11-29 22:22:50,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:50,775 INFO L93 Difference]: Finished difference Result 563 states and 1795 transitions. [2020-11-29 22:22:50,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:22:50,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-11-29 22:22:50,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:50,780 INFO L225 Difference]: With dead ends: 563 [2020-11-29 22:22:50,780 INFO L226 Difference]: Without dead ends: 485 [2020-11-29 22:22:50,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 22:22:50,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-11-29 22:22:50,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2020-11-29 22:22:50,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-11-29 22:22:50,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 1540 transitions. [2020-11-29 22:22:50,805 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 1540 transitions. Word has length 26 [2020-11-29 22:22:50,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:50,806 INFO L481 AbstractCegarLoop]: Abstraction has 485 states and 1540 transitions. [2020-11-29 22:22:50,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:22:50,806 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 1540 transitions. [2020-11-29 22:22:50,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 22:22:50,808 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:50,808 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:50,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 22:22:50,808 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:50,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:50,809 INFO L82 PathProgramCache]: Analyzing trace with hash -771274933, now seen corresponding path program 1 times [2020-11-29 22:22:50,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:50,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072970312] [2020-11-29 22:22:50,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:50,908 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 22:22:50,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072970312] [2020-11-29 22:22:50,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:50,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:22:50,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000587619] [2020-11-29 22:22:50,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:22:50,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:50,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:22:50,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:22:50,910 INFO L87 Difference]: Start difference. First operand 485 states and 1540 transitions. Second operand 6 states. [2020-11-29 22:22:51,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:51,032 INFO L93 Difference]: Finished difference Result 648 states and 1981 transitions. [2020-11-29 22:22:51,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:22:51,033 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-11-29 22:22:51,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:51,037 INFO L225 Difference]: With dead ends: 648 [2020-11-29 22:22:51,037 INFO L226 Difference]: Without dead ends: 478 [2020-11-29 22:22:51,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:22:51,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-11-29 22:22:51,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2020-11-29 22:22:51,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-11-29 22:22:51,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 1524 transitions. [2020-11-29 22:22:51,056 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 1524 transitions. Word has length 28 [2020-11-29 22:22:51,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:51,058 INFO L481 AbstractCegarLoop]: Abstraction has 478 states and 1524 transitions. [2020-11-29 22:22:51,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:22:51,059 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 1524 transitions. [2020-11-29 22:22:51,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 22:22:51,060 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:51,061 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:51,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 22:22:51,061 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:51,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:51,061 INFO L82 PathProgramCache]: Analyzing trace with hash 942718069, now seen corresponding path program 2 times [2020-11-29 22:22:51,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:51,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113425504] [2020-11-29 22:22:51,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:51,188 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 22:22:51,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113425504] [2020-11-29 22:22:51,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:51,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 22:22:51,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75790000] [2020-11-29 22:22:51,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 22:22:51,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:51,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 22:22:51,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:22:51,190 INFO L87 Difference]: Start difference. First operand 478 states and 1524 transitions. Second operand 7 states. [2020-11-29 22:22:51,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:51,399 INFO L93 Difference]: Finished difference Result 638 states and 1960 transitions. [2020-11-29 22:22:51,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:22:51,401 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-11-29 22:22:51,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:51,405 INFO L225 Difference]: With dead ends: 638 [2020-11-29 22:22:51,405 INFO L226 Difference]: Without dead ends: 475 [2020-11-29 22:22:51,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:22:51,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2020-11-29 22:22:51,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 475. [2020-11-29 22:22:51,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-11-29 22:22:51,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 1516 transitions. [2020-11-29 22:22:51,435 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 1516 transitions. Word has length 28 [2020-11-29 22:22:51,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:51,435 INFO L481 AbstractCegarLoop]: Abstraction has 475 states and 1516 transitions. [2020-11-29 22:22:51,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 22:22:51,435 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 1516 transitions. [2020-11-29 22:22:51,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 22:22:51,440 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:51,440 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:51,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 22:22:51,440 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:51,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:51,441 INFO L82 PathProgramCache]: Analyzing trace with hash -785554330, now seen corresponding path program 1 times [2020-11-29 22:22:51,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:51,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954237200] [2020-11-29 22:22:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:51,644 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 22:22:51,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954237200] [2020-11-29 22:22:51,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:51,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-29 22:22:51,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896574628] [2020-11-29 22:22:51,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 22:22:51,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:51,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 22:22:51,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:22:51,646 INFO L87 Difference]: Start difference. First operand 475 states and 1516 transitions. Second operand 9 states. [2020-11-29 22:22:51,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:51,905 INFO L93 Difference]: Finished difference Result 616 states and 1899 transitions. [2020-11-29 22:22:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 22:22:51,906 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-11-29 22:22:51,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:51,910 INFO L225 Difference]: With dead ends: 616 [2020-11-29 22:22:51,910 INFO L226 Difference]: Without dead ends: 457 [2020-11-29 22:22:51,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-11-29 22:22:51,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-11-29 22:22:51,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2020-11-29 22:22:51,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-11-29 22:22:51,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 1446 transitions. [2020-11-29 22:22:51,929 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 1446 transitions. Word has length 28 [2020-11-29 22:22:51,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:51,930 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 1446 transitions. [2020-11-29 22:22:51,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 22:22:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 1446 transitions. [2020-11-29 22:22:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 22:22:51,932 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:51,932 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:51,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 22:22:51,932 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:51,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:51,933 INFO L82 PathProgramCache]: Analyzing trace with hash -403766554, now seen corresponding path program 2 times [2020-11-29 22:22:51,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:51,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821856727] [2020-11-29 22:22:51,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:52,124 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 22:22:52,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821856727] [2020-11-29 22:22:52,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:52,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-29 22:22:52,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513666957] [2020-11-29 22:22:52,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 22:22:52,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:52,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 22:22:52,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:22:52,125 INFO L87 Difference]: Start difference. First operand 457 states and 1446 transitions. Second operand 10 states. [2020-11-29 22:22:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:52,484 INFO L93 Difference]: Finished difference Result 705 states and 2218 transitions. [2020-11-29 22:22:52,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:22:52,485 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-11-29 22:22:52,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:52,490 INFO L225 Difference]: With dead ends: 705 [2020-11-29 22:22:52,490 INFO L226 Difference]: Without dead ends: 577 [2020-11-29 22:22:52,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-29 22:22:52,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2020-11-29 22:22:52,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 449. [2020-11-29 22:22:52,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2020-11-29 22:22:52,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 1410 transitions. [2020-11-29 22:22:52,510 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 1410 transitions. Word has length 28 [2020-11-29 22:22:52,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:52,510 INFO L481 AbstractCegarLoop]: Abstraction has 449 states and 1410 transitions. [2020-11-29 22:22:52,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 22:22:52,510 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 1410 transitions. [2020-11-29 22:22:52,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 22:22:52,513 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:52,513 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:52,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 22:22:52,513 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:52,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:52,514 INFO L82 PathProgramCache]: Analyzing trace with hash 994711798, now seen corresponding path program 3 times [2020-11-29 22:22:52,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:52,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350316712] [2020-11-29 22:22:52,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:52,862 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 22:22:52,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350316712] [2020-11-29 22:22:52,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:52,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-29 22:22:52,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849469606] [2020-11-29 22:22:52,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-29 22:22:52,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:52,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-29 22:22:52,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-11-29 22:22:52,865 INFO L87 Difference]: Start difference. First operand 449 states and 1410 transitions. Second operand 13 states. [2020-11-29 22:22:53,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:53,296 INFO L93 Difference]: Finished difference Result 481 states and 1418 transitions. [2020-11-29 22:22:53,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:22:53,299 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2020-11-29 22:22:53,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:53,300 INFO L225 Difference]: With dead ends: 481 [2020-11-29 22:22:53,301 INFO L226 Difference]: Without dead ends: 257 [2020-11-29 22:22:53,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-29 22:22:53,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-11-29 22:22:53,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2020-11-29 22:22:53,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-11-29 22:22:53,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 666 transitions. [2020-11-29 22:22:53,312 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 666 transitions. Word has length 28 [2020-11-29 22:22:53,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:53,312 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 666 transitions. [2020-11-29 22:22:53,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-29 22:22:53,312 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 666 transitions. [2020-11-29 22:22:53,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:22:53,313 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:53,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:53,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 22:22:53,314 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:53,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:53,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1537187255, now seen corresponding path program 1 times [2020-11-29 22:22:53,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:53,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325884114] [2020-11-29 22:22:53,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:53,608 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 22:22:53,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325884114] [2020-11-29 22:22:53,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:53,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-29 22:22:53,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138915185] [2020-11-29 22:22:53,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 22:22:53,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:53,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 22:22:53,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-11-29 22:22:53,611 INFO L87 Difference]: Start difference. First operand 257 states and 666 transitions. Second operand 12 states. [2020-11-29 22:22:53,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:53,978 INFO L93 Difference]: Finished difference Result 556 states and 1432 transitions. [2020-11-29 22:22:53,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 22:22:53,979 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-11-29 22:22:53,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:53,982 INFO L225 Difference]: With dead ends: 556 [2020-11-29 22:22:53,982 INFO L226 Difference]: Without dead ends: 413 [2020-11-29 22:22:53,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-11-29 22:22:53,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-11-29 22:22:53,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 269. [2020-11-29 22:22:53,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-11-29 22:22:53,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 683 transitions. [2020-11-29 22:22:53,996 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 683 transitions. Word has length 30 [2020-11-29 22:22:53,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:53,996 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 683 transitions. [2020-11-29 22:22:53,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 22:22:53,996 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 683 transitions. [2020-11-29 22:22:53,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:22:53,997 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:53,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:53,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 22:22:53,998 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:53,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:53,998 INFO L82 PathProgramCache]: Analyzing trace with hash -138708903, now seen corresponding path program 2 times [2020-11-29 22:22:54,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:54,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258728428] [2020-11-29 22:22:54,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:54,357 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 22:22:54,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258728428] [2020-11-29 22:22:54,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:54,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-29 22:22:54,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724121482] [2020-11-29 22:22:54,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-29 22:22:54,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:54,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-29 22:22:54,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-11-29 22:22:54,360 INFO L87 Difference]: Start difference. First operand 269 states and 683 transitions. Second operand 13 states. [2020-11-29 22:22:54,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:54,952 INFO L93 Difference]: Finished difference Result 467 states and 1198 transitions. [2020-11-29 22:22:54,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:22:54,953 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-11-29 22:22:54,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:54,956 INFO L225 Difference]: With dead ends: 467 [2020-11-29 22:22:54,957 INFO L226 Difference]: Without dead ends: 419 [2020-11-29 22:22:54,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2020-11-29 22:22:54,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-11-29 22:22:54,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 301. [2020-11-29 22:22:54,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-11-29 22:22:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 779 transitions. [2020-11-29 22:22:54,971 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 779 transitions. Word has length 30 [2020-11-29 22:22:54,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:54,971 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 779 transitions. [2020-11-29 22:22:54,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-29 22:22:54,971 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 779 transitions. [2020-11-29 22:22:54,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:22:54,973 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:54,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:54,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 22:22:54,973 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:54,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:54,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1633519411, now seen corresponding path program 3 times [2020-11-29 22:22:54,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:54,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848485208] [2020-11-29 22:22:54,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:55,217 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 22:22:55,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848485208] [2020-11-29 22:22:55,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:55,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-29 22:22:55,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840639920] [2020-11-29 22:22:55,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 22:22:55,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:55,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 22:22:55,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-11-29 22:22:55,219 INFO L87 Difference]: Start difference. First operand 301 states and 779 transitions. Second operand 12 states. [2020-11-29 22:22:55,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:55,473 INFO L93 Difference]: Finished difference Result 357 states and 899 transitions. [2020-11-29 22:22:55,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 22:22:55,473 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-11-29 22:22:55,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:55,475 INFO L225 Difference]: With dead ends: 357 [2020-11-29 22:22:55,475 INFO L226 Difference]: Without dead ends: 253 [2020-11-29 22:22:55,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-11-29 22:22:55,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-11-29 22:22:55,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2020-11-29 22:22:55,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-11-29 22:22:55,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 639 transitions. [2020-11-29 22:22:55,484 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 639 transitions. Word has length 30 [2020-11-29 22:22:55,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:55,484 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 639 transitions. [2020-11-29 22:22:55,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 22:22:55,484 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 639 transitions. [2020-11-29 22:22:55,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:22:55,485 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:55,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:55,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 22:22:55,485 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:55,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:55,486 INFO L82 PathProgramCache]: Analyzing trace with hash 540160227, now seen corresponding path program 4 times [2020-11-29 22:22:55,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:55,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45603341] [2020-11-29 22:22:55,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:55,748 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 22:22:55,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45603341] [2020-11-29 22:22:55,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:55,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-29 22:22:55,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590376045] [2020-11-29 22:22:55,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 22:22:55,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:55,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 22:22:55,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-11-29 22:22:55,750 INFO L87 Difference]: Start difference. First operand 253 states and 639 transitions. Second operand 12 states. [2020-11-29 22:22:55,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:55,953 INFO L93 Difference]: Finished difference Result 309 states and 759 transitions. [2020-11-29 22:22:55,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:22:55,953 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-11-29 22:22:55,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:55,955 INFO L225 Difference]: With dead ends: 309 [2020-11-29 22:22:55,955 INFO L226 Difference]: Without dead ends: 236 [2020-11-29 22:22:55,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2020-11-29 22:22:55,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-11-29 22:22:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 227. [2020-11-29 22:22:55,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-11-29 22:22:55,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 576 transitions. [2020-11-29 22:22:55,963 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 576 transitions. Word has length 30 [2020-11-29 22:22:55,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:55,963 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 576 transitions. [2020-11-29 22:22:55,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 22:22:55,963 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 576 transitions. [2020-11-29 22:22:55,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:22:55,964 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:55,964 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:55,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 22:22:55,965 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:55,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:55,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1938638579, now seen corresponding path program 5 times [2020-11-29 22:22:55,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:55,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448061898] [2020-11-29 22:22:55,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:56,374 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 22:22:56,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448061898] [2020-11-29 22:22:56,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:56,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-29 22:22:56,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464860501] [2020-11-29 22:22:56,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-29 22:22:56,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:56,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-29 22:22:56,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-11-29 22:22:56,376 INFO L87 Difference]: Start difference. First operand 227 states and 576 transitions. Second operand 13 states. [2020-11-29 22:22:56,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:56,954 INFO L93 Difference]: Finished difference Result 354 states and 880 transitions. [2020-11-29 22:22:56,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 22:22:56,955 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-11-29 22:22:56,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:56,957 INFO L225 Difference]: With dead ends: 354 [2020-11-29 22:22:56,957 INFO L226 Difference]: Without dead ends: 306 [2020-11-29 22:22:56,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2020-11-29 22:22:56,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-11-29 22:22:56,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 241. [2020-11-29 22:22:56,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-29 22:22:56,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 603 transitions. [2020-11-29 22:22:56,970 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 603 transitions. Word has length 30 [2020-11-29 22:22:56,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:56,970 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 603 transitions. [2020-11-29 22:22:56,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-29 22:22:56,971 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 603 transitions. [2020-11-29 22:22:56,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:22:56,971 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:22:56,971 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:22:56,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 22:22:56,971 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thread0Err0INUSE_VIOLATION, thread0Err10INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err9INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork4Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err6INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err8INUSE_VIOLATION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION]=== [2020-11-29 22:22:56,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:22:56,972 INFO L82 PathProgramCache]: Analyzing trace with hash -584100403, now seen corresponding path program 6 times [2020-11-29 22:22:56,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:22:56,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341666274] [2020-11-29 22:22:56,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:22:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:22:57,218 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 22:22:57,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341666274] [2020-11-29 22:22:57,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:22:57,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-29 22:22:57,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496134942] [2020-11-29 22:22:57,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 22:22:57,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:22:57,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 22:22:57,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-11-29 22:22:57,220 INFO L87 Difference]: Start difference. First operand 241 states and 603 transitions. Second operand 12 states. [2020-11-29 22:22:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:22:57,429 INFO L93 Difference]: Finished difference Result 179 states and 424 transitions. [2020-11-29 22:22:57,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:22:57,429 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-11-29 22:22:57,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:22:57,430 INFO L225 Difference]: With dead ends: 179 [2020-11-29 22:22:57,430 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 22:22:57,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2020-11-29 22:22:57,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 22:22:57,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 22:22:57,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 22:22:57,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:22:57,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2020-11-29 22:22:57,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:22:57,431 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:22:57,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 22:22:57,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:22:57,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:22:57,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 22:22:57,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:22:57 BasicIcfg [2020-11-29 22:22:57,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:22:57,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:22:57,434 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:22:57,434 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:22:57,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:22:43" (3/4) ... [2020-11-29 22:22:57,438 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:22:57,444 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2020-11-29 22:22:57,445 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2020-11-29 22:22:57,445 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2020-11-29 22:22:57,445 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2020-11-29 22:22:57,449 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-29 22:22:57,449 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 22:22:57,450 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:22:57,450 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:22:57,479 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5f8ad703-247b-4cc0-8a80-56f57917fb5b/bin/uautomizer/witness.graphml [2020-11-29 22:22:57,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:22:57,481 INFO L168 Benchmark]: Toolchain (without parser) took 15363.45 ms. Allocated memory was 115.3 MB in the beginning and 251.7 MB in the end (delta: 136.3 MB). Free memory was 78.4 MB in the beginning and 108.1 MB in the end (delta: -29.7 MB). Peak memory consumption was 105.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:57,482 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory was 33.6 MB in the beginning and 33.6 MB in the end (delta: 30.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:22:57,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1025.46 ms. Allocated memory was 115.3 MB in the beginning and 142.6 MB in the end (delta: 27.3 MB). Free memory was 78.2 MB in the beginning and 109.4 MB in the end (delta: -31.2 MB). Peak memory consumption was 43.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:57,482 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.30 ms. Allocated memory is still 142.6 MB. Free memory was 109.4 MB in the beginning and 106.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:57,483 INFO L168 Benchmark]: Boogie Preprocessor took 49.37 ms. Allocated memory is still 142.6 MB. Free memory was 106.3 MB in the beginning and 105.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:57,483 INFO L168 Benchmark]: RCFGBuilder took 587.76 ms. Allocated memory is still 142.6 MB. Free memory was 105.2 MB in the beginning and 77.9 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:57,484 INFO L168 Benchmark]: TraceAbstraction took 13579.68 ms. Allocated memory was 142.6 MB in the beginning and 251.7 MB in the end (delta: 109.1 MB). Free memory was 76.9 MB in the beginning and 111.2 MB in the end (delta: -34.3 MB). Peak memory consumption was 74.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:57,484 INFO L168 Benchmark]: Witness Printer took 45.67 ms. Allocated memory is still 251.7 MB. Free memory was 110.2 MB in the beginning and 108.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:22:57,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory was 33.6 MB in the beginning and 33.6 MB in the end (delta: 30.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1025.46 ms. Allocated memory was 115.3 MB in the beginning and 142.6 MB in the end (delta: 27.3 MB). Free memory was 78.2 MB in the beginning and 109.4 MB in the end (delta: -31.2 MB). Peak memory consumption was 43.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.30 ms. Allocated memory is still 142.6 MB. Free memory was 109.4 MB in the beginning and 106.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.37 ms. Allocated memory is still 142.6 MB. Free memory was 106.3 MB in the beginning and 105.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 587.76 ms. Allocated memory is still 142.6 MB. Free memory was 105.2 MB in the beginning and 77.9 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13579.68 ms. Allocated memory was 142.6 MB in the beginning and 251.7 MB in the end (delta: 109.1 MB). Free memory was 76.9 MB in the beginning and 111.2 MB in the end (delta: -34.3 MB). Peak memory consumption was 74.7 MB. Max. memory is 16.1 GB. * Witness Printer took 45.67 ms. Allocated memory is still 251.7 MB. Free memory was 110.2 MB in the beginning and 108.1 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 1135 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 39 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 158 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 186 PlacesBefore, 103 PlacesAfterwards, 259 TransitionsBefore, 176 TransitionsAfterwards, 1648 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 94 TotalNumberOfCompositions, 22144 MoverChecksTotal - PositiveResult [Line: 20]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 106 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.1s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 686 SDtfs, 957 SDslu, 1954 SDs, 0 SdLazy, 2074 SolverSat, 313 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=998occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 18 MinimizatonAttempts, 1811 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 436 NumberOfCodeBlocks, 436 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 418 ConstructedInterpolants, 0 QuantifiedInterpolants, 120410 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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...