./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/test/easy6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/test/easy6.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --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 dbfb10bed59bd9571e8fb81e7de27768a48dfd88 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-03 11:54:35,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-03 11:54:35,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-03 11:54:35,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-03 11:54:35,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-03 11:54:35,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-03 11:54:35,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-03 11:54:35,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-03 11:54:35,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-03 11:54:35,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-03 11:54:35,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-03 11:54:35,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-03 11:54:35,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-03 11:54:35,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-03 11:54:35,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-03 11:54:35,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-03 11:54:35,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-03 11:54:35,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-03 11:54:35,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-03 11:54:35,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-03 11:54:35,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-03 11:54:35,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-03 11:54:35,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-03 11:54:35,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-03 11:54:35,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-03 11:54:35,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-03 11:54:35,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-03 11:54:35,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-03 11:54:35,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-03 11:54:35,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-03 11:54:35,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-03 11:54:35,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-03 11:54:35,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-03 11:54:35,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-03 11:54:35,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-03 11:54:35,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-03 11:54:35,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-03 11:54:35,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-03 11:54:35,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-03 11:54:35,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-03 11:54:35,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-03 11:54:35,958 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-03 11:54:36,009 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-03 11:54:36,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-03 11:54:36,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-03 11:54:36,012 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-03 11:54:36,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-03 11:54:36,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-03 11:54:36,014 INFO L138 SettingsManager]: * Use SBE=true [2021-10-03 11:54:36,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-03 11:54:36,015 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-03 11:54:36,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-03 11:54:36,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-03 11:54:36,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-03 11:54:36,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-03 11:54:36,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-03 11:54:36,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-03 11:54:36,017 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-03 11:54:36,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-03 11:54:36,018 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-03 11:54:36,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-03 11:54:36,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-03 11:54:36,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-03 11:54:36,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-03 11:54:36,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-03 11:54:36,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-03 11:54:36,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-03 11:54:36,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-03 11:54:36,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-03 11:54:36,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-03 11:54:36,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-03 11:54:36,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-03 11:54:36,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbfb10bed59bd9571e8fb81e7de27768a48dfd88 [2021-10-03 11:54:36,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-03 11:54:36,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-03 11:54:36,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-03 11:54:36,507 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-03 11:54:36,507 INFO L275 PluginConnector]: CDTParser initialized [2021-10-03 11:54:36,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test/easy6.wvr.c [2021-10-03 11:54:36,593 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/782862144/8f1135ba4aec46e98a695f9881465799/FLAG0631cfafe [2021-10-03 11:54:37,240 INFO L306 CDTParser]: Found 1 translation units. [2021-10-03 11:54:37,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/test/easy6.wvr.c [2021-10-03 11:54:37,241 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-03 11:54:37,242 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-03 11:54:37,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/782862144/8f1135ba4aec46e98a695f9881465799/FLAG0631cfafe [2021-10-03 11:54:37,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/782862144/8f1135ba4aec46e98a695f9881465799 [2021-10-03 11:54:37,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-03 11:54:37,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-03 11:54:37,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-03 11:54:37,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-03 11:54:37,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-03 11:54:37,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 11:54:37" (1/1) ... [2021-10-03 11:54:37,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43eb11da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37, skipping insertion in model container [2021-10-03 11:54:37,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 11:54:37" (1/1) ... [2021-10-03 11:54:37,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-03 11:54:37,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-03 11:54:37,764 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-03 11:54:37,806 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/test/easy6.wvr.c[997,1010] [2021-10-03 11:54:37,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-03 11:54:37,822 INFO L203 MainTranslator]: Completed pre-run [2021-10-03 11:54:37,834 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-03 11:54:37,847 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/test/easy6.wvr.c[997,1010] [2021-10-03 11:54:37,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-03 11:54:37,866 INFO L208 MainTranslator]: Completed translation [2021-10-03 11:54:37,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37 WrapperNode [2021-10-03 11:54:37,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-03 11:54:37,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-03 11:54:37,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-03 11:54:37,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-03 11:54:37,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37" (1/1) ... [2021-10-03 11:54:37,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37" (1/1) ... [2021-10-03 11:54:37,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-03 11:54:37,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-03 11:54:37,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-03 11:54:37,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-03 11:54:37,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37" (1/1) ... [2021-10-03 11:54:37,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37" (1/1) ... [2021-10-03 11:54:37,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37" (1/1) ... [2021-10-03 11:54:37,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37" (1/1) ... [2021-10-03 11:54:37,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37" (1/1) ... [2021-10-03 11:54:37,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37" (1/1) ... [2021-10-03 11:54:37,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37" (1/1) ... [2021-10-03 11:54:37,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-03 11:54:37,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-03 11:54:37,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-03 11:54:37,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-03 11:54:37,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37" (1/1) ... [2021-10-03 11:54:37,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-03 11:54:37,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-03 11:54:37,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-03 11:54:37,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-03 11:54:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-03 11:54:38,051 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-03 11:54:38,051 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-03 11:54:38,051 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-03 11:54:38,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-03 11:54:38,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-03 11:54:38,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-03 11:54:38,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-03 11:54:38,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-03 11:54:38,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-03 11:54:38,055 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-03 11:54:38,473 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-03 11:54:38,474 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-03 11:54:38,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:54:38 BoogieIcfgContainer [2021-10-03 11:54:38,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-03 11:54:38,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-03 11:54:38,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-03 11:54:38,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-03 11:54:38,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 11:54:37" (1/3) ... [2021-10-03 11:54:38,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4cf3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 11:54:38, skipping insertion in model container [2021-10-03 11:54:38,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:54:37" (2/3) ... [2021-10-03 11:54:38,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4cf3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 11:54:38, skipping insertion in model container [2021-10-03 11:54:38,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:54:38" (3/3) ... [2021-10-03 11:54:38,504 INFO L111 eAbstractionObserver]: Analyzing ICFG easy6.wvr.c [2021-10-03 11:54:38,516 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-03 11:54:38,517 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-03 11:54:38,517 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-03 11:54:38,519 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-03 11:54:38,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,583 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,583 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,584 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,584 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,584 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,584 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,585 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,585 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,585 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,586 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,586 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,587 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,587 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,587 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,587 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,588 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,588 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,589 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,589 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,590 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,590 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,592 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,592 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,593 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,593 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,594 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,594 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,594 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,595 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,595 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,595 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,596 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,596 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,596 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,597 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,597 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,598 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,598 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,598 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,599 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,599 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,600 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,600 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,600 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,601 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,605 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,606 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,607 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,607 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,615 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,615 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,615 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,616 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:54:38,625 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-03 11:54:38,696 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-03 11:54:38,705 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-03 11:54:38,706 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-03 11:54:38,727 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-03 11:54:38,748 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 88 transitions, 192 flow [2021-10-03 11:54:38,752 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 88 transitions, 192 flow [2021-10-03 11:54:38,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 88 transitions, 192 flow [2021-10-03 11:54:38,830 INFO L129 PetriNetUnfolder]: 5/86 cut-off events. [2021-10-03 11:54:38,831 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-03 11:54:38,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 5/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2021-10-03 11:54:38,846 INFO L116 LiptonReduction]: Number of co-enabled transitions 1400 [2021-10-03 11:54:40,938 INFO L131 LiptonReduction]: Checked pairs total: 6243 [2021-10-03 11:54:40,938 INFO L133 LiptonReduction]: Total number of compositions: 74 [2021-10-03 11:54:40,947 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 31 transitions, 78 flow [2021-10-03 11:54:40,974 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 244 states, 243 states have (on average 2.3127572016460904) internal successors, (562), 243 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:40,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 243 states have (on average 2.3127572016460904) internal successors, (562), 243 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:40,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-03 11:54:40,991 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:54:40,992 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 11:54:40,992 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:54:40,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:54:40,998 INFO L82 PathProgramCache]: Analyzing trace with hash 40728269, now seen corresponding path program 1 times [2021-10-03 11:54:41,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:54:41,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924691030] [2021-10-03 11:54:41,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:54:41,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:54:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:54:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:54:41,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:54:41,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924691030] [2021-10-03 11:54:41,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924691030] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:54:41,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:54:41,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-03 11:54:41,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790175077] [2021-10-03 11:54:41,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-03 11:54:41,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:54:41,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-03 11:54:41,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-03 11:54:41,209 INFO L87 Difference]: Start difference. First operand has 244 states, 243 states have (on average 2.3127572016460904) internal successors, (562), 243 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:41,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:54:41,234 INFO L93 Difference]: Finished difference Result 244 states and 540 transitions. [2021-10-03 11:54:41,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-03 11:54:41,235 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-03 11:54:41,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:54:41,253 INFO L225 Difference]: With dead ends: 244 [2021-10-03 11:54:41,253 INFO L226 Difference]: Without dead ends: 244 [2021-10-03 11:54:41,254 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-03 11:54:41,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-10-03 11:54:41,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2021-10-03 11:54:41,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 2.2222222222222223) internal successors, (540), 243 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:41,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 540 transitions. [2021-10-03 11:54:41,315 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 540 transitions. Word has length 19 [2021-10-03 11:54:41,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:54:41,316 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 540 transitions. [2021-10-03 11:54:41,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:41,316 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 540 transitions. [2021-10-03 11:54:41,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-03 11:54:41,320 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:54:41,320 INFO L512 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] [2021-10-03 11:54:41,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-03 11:54:41,320 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:54:41,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:54:41,321 INFO L82 PathProgramCache]: Analyzing trace with hash 144355811, now seen corresponding path program 1 times [2021-10-03 11:54:41,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:54:41,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153963389] [2021-10-03 11:54:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:54:41,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:54:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:54:41,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:54:41,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:54:41,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153963389] [2021-10-03 11:54:41,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153963389] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:54:41,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:54:41,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-03 11:54:41,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827675873] [2021-10-03 11:54:41,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-03 11:54:41,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:54:41,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-03 11:54:41,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-03 11:54:41,714 INFO L87 Difference]: Start difference. First operand 244 states and 540 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:41,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:54:41,817 INFO L93 Difference]: Finished difference Result 295 states and 619 transitions. [2021-10-03 11:54:41,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-03 11:54:41,818 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-03 11:54:41,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:54:41,821 INFO L225 Difference]: With dead ends: 295 [2021-10-03 11:54:41,821 INFO L226 Difference]: Without dead ends: 230 [2021-10-03 11:54:41,822 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 86.1ms TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-10-03 11:54:41,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-03 11:54:41,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 198. [2021-10-03 11:54:41,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 2.203045685279188) internal successors, (434), 197 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 434 transitions. [2021-10-03 11:54:41,839 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 434 transitions. Word has length 27 [2021-10-03 11:54:41,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:54:41,839 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 434 transitions. [2021-10-03 11:54:41,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:41,840 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 434 transitions. [2021-10-03 11:54:41,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-03 11:54:41,843 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:54:41,843 INFO L512 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] [2021-10-03 11:54:41,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-03 11:54:41,843 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:54:41,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:54:41,844 INFO L82 PathProgramCache]: Analyzing trace with hash -864059851, now seen corresponding path program 2 times [2021-10-03 11:54:41,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:54:41,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564506370] [2021-10-03 11:54:41,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:54:41,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:54:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:54:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:54:42,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:54:42,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564506370] [2021-10-03 11:54:42,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564506370] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:54:42,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:54:42,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-03 11:54:42,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051420183] [2021-10-03 11:54:42,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-03 11:54:42,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:54:42,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-03 11:54:42,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-03 11:54:42,036 INFO L87 Difference]: Start difference. First operand 198 states and 434 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:42,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:54:42,212 INFO L93 Difference]: Finished difference Result 352 states and 761 transitions. [2021-10-03 11:54:42,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-03 11:54:42,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-03 11:54:42,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:54:42,216 INFO L225 Difference]: With dead ends: 352 [2021-10-03 11:54:42,217 INFO L226 Difference]: Without dead ends: 272 [2021-10-03 11:54:42,217 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 113.6ms TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-10-03 11:54:42,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-10-03 11:54:42,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 168. [2021-10-03 11:54:42,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 167 states have (on average 2.179640718562874) internal successors, (364), 167 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:42,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 364 transitions. [2021-10-03 11:54:42,232 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 364 transitions. Word has length 27 [2021-10-03 11:54:42,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:54:42,232 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 364 transitions. [2021-10-03 11:54:42,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:42,233 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 364 transitions. [2021-10-03 11:54:42,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-03 11:54:42,235 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:54:42,236 INFO L512 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] [2021-10-03 11:54:42,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-03 11:54:42,236 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:54:42,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:54:42,237 INFO L82 PathProgramCache]: Analyzing trace with hash 172066387, now seen corresponding path program 3 times [2021-10-03 11:54:42,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:54:42,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097988431] [2021-10-03 11:54:42,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:54:42,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:54:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:54:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:54:42,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:54:42,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097988431] [2021-10-03 11:54:42,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097988431] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:54:42,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:54:42,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-03 11:54:42,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177599093] [2021-10-03 11:54:42,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-03 11:54:42,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:54:42,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-03 11:54:42,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-03 11:54:42,324 INFO L87 Difference]: Start difference. First operand 168 states and 364 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:42,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:54:42,361 INFO L93 Difference]: Finished difference Result 172 states and 360 transitions. [2021-10-03 11:54:42,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-03 11:54:42,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-03 11:54:42,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:54:42,364 INFO L225 Difference]: With dead ends: 172 [2021-10-03 11:54:42,365 INFO L226 Difference]: Without dead ends: 156 [2021-10-03 11:54:42,366 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-03 11:54:42,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-03 11:54:42,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-10-03 11:54:42,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 2.1548387096774193) internal successors, (334), 155 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:42,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 334 transitions. [2021-10-03 11:54:42,375 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 334 transitions. Word has length 27 [2021-10-03 11:54:42,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:54:42,375 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 334 transitions. [2021-10-03 11:54:42,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:42,376 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 334 transitions. [2021-10-03 11:54:42,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-03 11:54:42,377 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:54:42,377 INFO L512 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] [2021-10-03 11:54:42,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-03 11:54:42,378 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:54:42,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:54:42,379 INFO L82 PathProgramCache]: Analyzing trace with hash 2095616885, now seen corresponding path program 4 times [2021-10-03 11:54:42,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:54:42,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592055425] [2021-10-03 11:54:42,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:54:42,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:54:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:54:42,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:54:42,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:54:42,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592055425] [2021-10-03 11:54:42,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592055425] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:54:42,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:54:42,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-03 11:54:42,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970259762] [2021-10-03 11:54:42,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-03 11:54:42,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:54:42,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-03 11:54:42,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-03 11:54:42,580 INFO L87 Difference]: Start difference. First operand 156 states and 334 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:42,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:54:42,738 INFO L93 Difference]: Finished difference Result 288 states and 608 transitions. [2021-10-03 11:54:42,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-03 11:54:42,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-03 11:54:42,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:54:42,741 INFO L225 Difference]: With dead ends: 288 [2021-10-03 11:54:42,741 INFO L226 Difference]: Without dead ends: 250 [2021-10-03 11:54:42,742 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 120.1ms TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-10-03 11:54:42,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-03 11:54:42,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 152. [2021-10-03 11:54:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 2.1456953642384105) internal successors, (324), 151 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:42,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 324 transitions. [2021-10-03 11:54:42,749 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 324 transitions. Word has length 27 [2021-10-03 11:54:42,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:54:42,750 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 324 transitions. [2021-10-03 11:54:42,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:42,750 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 324 transitions. [2021-10-03 11:54:42,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-03 11:54:42,751 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:54:42,752 INFO L512 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] [2021-10-03 11:54:42,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-03 11:54:42,752 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:54:42,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:54:42,753 INFO L82 PathProgramCache]: Analyzing trace with hash -909055917, now seen corresponding path program 5 times [2021-10-03 11:54:42,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:54:42,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564982250] [2021-10-03 11:54:42,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:54:42,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:54:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:54:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:54:42,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:54:42,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564982250] [2021-10-03 11:54:42,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564982250] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:54:42,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:54:42,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-03 11:54:42,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218680336] [2021-10-03 11:54:42,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-03 11:54:42,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:54:42,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-03 11:54:42,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-03 11:54:42,883 INFO L87 Difference]: Start difference. First operand 152 states and 324 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:54:43,021 INFO L93 Difference]: Finished difference Result 260 states and 544 transitions. [2021-10-03 11:54:43,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-03 11:54:43,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-03 11:54:43,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:54:43,024 INFO L225 Difference]: With dead ends: 260 [2021-10-03 11:54:43,024 INFO L226 Difference]: Without dead ends: 226 [2021-10-03 11:54:43,024 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 94.4ms TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-10-03 11:54:43,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-03 11:54:43,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 158. [2021-10-03 11:54:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 2.121019108280255) internal successors, (333), 157 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:43,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 333 transitions. [2021-10-03 11:54:43,032 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 333 transitions. Word has length 27 [2021-10-03 11:54:43,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:54:43,032 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 333 transitions. [2021-10-03 11:54:43,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:43,033 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 333 transitions. [2021-10-03 11:54:43,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-03 11:54:43,034 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:54:43,034 INFO L512 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] [2021-10-03 11:54:43,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-03 11:54:43,034 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:54:43,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:54:43,035 INFO L82 PathProgramCache]: Analyzing trace with hash -871901069, now seen corresponding path program 6 times [2021-10-03 11:54:43,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:54:43,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536026764] [2021-10-03 11:54:43,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:54:43,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:54:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:54:43,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:54:43,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:54:43,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536026764] [2021-10-03 11:54:43,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536026764] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:54:43,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:54:43,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-03 11:54:43,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122323307] [2021-10-03 11:54:43,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-03 11:54:43,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:54:43,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-03 11:54:43,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-03 11:54:43,112 INFO L87 Difference]: Start difference. First operand 158 states and 333 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:43,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:54:43,144 INFO L93 Difference]: Finished difference Result 172 states and 350 transitions. [2021-10-03 11:54:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-03 11:54:43,145 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-03 11:54:43,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:54:43,146 INFO L225 Difference]: With dead ends: 172 [2021-10-03 11:54:43,147 INFO L226 Difference]: Without dead ends: 144 [2021-10-03 11:54:43,147 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 19.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-03 11:54:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-03 11:54:43,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-10-03 11:54:43,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 2.090909090909091) internal successors, (299), 143 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 299 transitions. [2021-10-03 11:54:43,153 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 299 transitions. Word has length 27 [2021-10-03 11:54:43,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:54:43,153 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 299 transitions. [2021-10-03 11:54:43,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:43,153 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 299 transitions. [2021-10-03 11:54:43,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-03 11:54:43,154 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:54:43,155 INFO L512 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] [2021-10-03 11:54:43,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-03 11:54:43,155 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:54:43,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:54:43,156 INFO L82 PathProgramCache]: Analyzing trace with hash 243497403, now seen corresponding path program 7 times [2021-10-03 11:54:43,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:54:43,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163358481] [2021-10-03 11:54:43,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:54:43,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:54:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:54:43,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:54:43,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:54:43,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163358481] [2021-10-03 11:54:43,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163358481] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:54:43,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:54:43,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-03 11:54:43,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660885690] [2021-10-03 11:54:43,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-03 11:54:43,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:54:43,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-03 11:54:43,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-03 11:54:43,248 INFO L87 Difference]: Start difference. First operand 144 states and 299 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:43,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:54:43,394 INFO L93 Difference]: Finished difference Result 124 states and 247 transitions. [2021-10-03 11:54:43,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-03 11:54:43,395 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-03 11:54:43,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:54:43,396 INFO L225 Difference]: With dead ends: 124 [2021-10-03 11:54:43,396 INFO L226 Difference]: Without dead ends: 112 [2021-10-03 11:54:43,397 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 106.8ms TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-10-03 11:54:43,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-03 11:54:43,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-10-03 11:54:43,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.990990990990991) internal successors, (221), 111 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 221 transitions. [2021-10-03 11:54:43,402 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 221 transitions. Word has length 27 [2021-10-03 11:54:43,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:54:43,403 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 221 transitions. [2021-10-03 11:54:43,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:43,404 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 221 transitions. [2021-10-03 11:54:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-03 11:54:43,404 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:54:43,405 INFO L512 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] [2021-10-03 11:54:43,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-03 11:54:43,405 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-03 11:54:43,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:54:43,406 INFO L82 PathProgramCache]: Analyzing trace with hash 205100421, now seen corresponding path program 8 times [2021-10-03 11:54:43,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:54:43,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113006342] [2021-10-03 11:54:43,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:54:43,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:54:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:54:43,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-03 11:54:43,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:54:43,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113006342] [2021-10-03 11:54:43,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113006342] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:54:43,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:54:43,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-03 11:54:43,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020798198] [2021-10-03 11:54:43,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-03 11:54:43,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:54:43,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-03 11:54:43,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-03 11:54:43,585 INFO L87 Difference]: Start difference. First operand 112 states and 221 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:43,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:54:43,645 INFO L93 Difference]: Finished difference Result 111 states and 220 transitions. [2021-10-03 11:54:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-03 11:54:43,646 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-03 11:54:43,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:54:43,646 INFO L225 Difference]: With dead ends: 111 [2021-10-03 11:54:43,647 INFO L226 Difference]: Without dead ends: 0 [2021-10-03 11:54:43,647 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 64.4ms TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-10-03 11:54:43,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-03 11:54:43,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-03 11:54:43,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:43,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-03 11:54:43,648 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2021-10-03 11:54:43,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:54:43,649 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-03 11:54:43,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-03 11:54:43,649 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-03 11:54:43,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-03 11:54:43,652 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-03 11:54:43,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-03 11:54:43,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-03 11:54:43,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-03 11:54:43,659 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-03 11:54:43,659 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-03 11:54:43,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 11:54:43 BasicIcfg [2021-10-03 11:54:43,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-03 11:54:43,662 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-03 11:54:43,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-03 11:54:43,663 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-03 11:54:43,663 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:54:38" (3/4) ... [2021-10-03 11:54:43,667 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-03 11:54:43,676 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-03 11:54:43,676 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-03 11:54:43,681 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-03 11:54:43,681 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-03 11:54:43,682 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-03 11:54:43,724 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-03 11:54:43,725 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-03 11:54:43,727 INFO L168 Benchmark]: Toolchain (without parser) took 6137.69 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 30.7 MB in the beginning and 44.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-03 11:54:43,727 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 44.0 MB. Free memory was 21.1 MB in the beginning and 21.1 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-03 11:54:43,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.97 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 33.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-03 11:54:43,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.82 ms. Allocated memory is still 54.5 MB. Free memory was 33.8 MB in the beginning and 32.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-03 11:54:43,728 INFO L168 Benchmark]: Boogie Preprocessor took 24.27 ms. Allocated memory is still 54.5 MB. Free memory was 32.2 MB in the beginning and 31.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-03 11:54:43,729 INFO L168 Benchmark]: RCFGBuilder took 542.74 ms. Allocated memory is still 54.5 MB. Free memory was 31.0 MB in the beginning and 33.2 MB in the end (delta: -2.2 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-03 11:54:43,730 INFO L168 Benchmark]: TraceAbstraction took 5175.45 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 32.8 MB in the beginning and 47.2 MB in the end (delta: -14.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-10-03 11:54:43,730 INFO L168 Benchmark]: Witness Printer took 62.24 ms. Allocated memory is still 81.8 MB. Free memory was 47.2 MB in the beginning and 44.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-03 11:54:43,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 44.0 MB. Free memory was 21.1 MB in the beginning and 21.1 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.97 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 33.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.82 ms. Allocated memory is still 54.5 MB. Free memory was 33.8 MB in the beginning and 32.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.27 ms. Allocated memory is still 54.5 MB. Free memory was 32.2 MB in the beginning and 31.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 542.74 ms. Allocated memory is still 54.5 MB. Free memory was 31.0 MB in the beginning and 33.2 MB in the end (delta: -2.2 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5175.45 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 32.8 MB in the beginning and 47.2 MB in the end (delta: -14.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Witness Printer took 62.24 ms. Allocated memory is still 81.8 MB. Free memory was 47.2 MB in the beginning and 44.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2185.7ms, 90 PlacesBefore, 37 PlacesAfterwards, 88 TransitionsBefore, 31 TransitionsAfterwards, 1400 CoEnabledTransitionPairs, 10 FixpointIterations, 30 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 74 TotalNumberOfCompositions, 6243 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3025, positive: 2694, positive conditional: 0, positive unconditional: 2694, negative: 331, negative conditional: 0, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1087, positive: 1047, positive conditional: 0, positive unconditional: 1047, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1087, positive: 1035, positive conditional: 0, positive unconditional: 1035, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3025, positive: 1647, positive conditional: 0, positive unconditional: 1647, negative: 291, negative conditional: 0, negative unconditional: 291, unknown: 1087, unknown conditional: 0, unknown unconditional: 1087] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 160, Positive conditional cache size: 0, Positive unconditional cache size: 160, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 55]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 124 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4966.1ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 30.3ms, AutomataDifference: 964.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2268.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 318 SDtfs, 660 SDslu, 848 SDs, 0 SdLazy, 415 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 297.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 626.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=0, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 110.7ms AutomataMinimizationTime, 9 MinimizatonAttempts, 302 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.1ms SsaConstructionTime, 361.5ms SatisfiabilityAnalysisTime, 975.6ms InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 1084 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-03 11:54:43,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...