./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl/file-item-trans.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/chl/file-item-trans.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 051fbf78f30ba094b85f5d8aec1a43c9ba011df1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 11:56:58,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-03 11:56:58,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-03 11:56:59,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-03 11:56:59,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-03 11:56:59,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-03 11:56:59,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-03 11:56:59,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-03 11:56:59,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-03 11:56:59,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-03 11:56:59,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-03 11:56:59,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-03 11:56:59,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-03 11:56:59,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-03 11:56:59,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-03 11:56:59,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-03 11:56:59,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-03 11:56:59,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-03 11:56:59,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-03 11:56:59,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-03 11:56:59,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-03 11:56:59,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-03 11:56:59,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-03 11:56:59,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-03 11:56:59,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-03 11:56:59,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-03 11:56:59,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-03 11:56:59,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-03 11:56:59,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-03 11:56:59,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-03 11:56:59,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-03 11:56:59,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-03 11:56:59,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-03 11:56:59,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-03 11:56:59,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-03 11:56:59,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-03 11:56:59,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-03 11:56:59,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-03 11:56:59,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-03 11:56:59,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-03 11:56:59,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-03 11:56:59,071 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 11:56:59,124 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-03 11:56:59,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-03 11:56:59,126 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-03 11:56:59,127 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-03 11:56:59,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-03 11:56:59,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-03 11:56:59,130 INFO L138 SettingsManager]: * Use SBE=true [2021-10-03 11:56:59,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-03 11:56:59,131 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-03 11:56:59,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-03 11:56:59,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-03 11:56:59,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-03 11:56:59,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-03 11:56:59,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-03 11:56:59,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-03 11:56:59,134 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-03 11:56:59,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-03 11:56:59,134 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-03 11:56:59,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-03 11:56:59,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-03 11:56:59,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-03 11:56:59,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-03 11:56:59,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-03 11:56:59,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-03 11:56:59,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-03 11:56:59,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-03 11:56:59,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-03 11:56:59,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-03 11:56:59,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-03 11:56:59,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-03 11:56:59,138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 051fbf78f30ba094b85f5d8aec1a43c9ba011df1 [2021-10-03 11:56:59,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-03 11:56:59,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-03 11:56:59,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-03 11:56:59,629 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-03 11:56:59,631 INFO L275 PluginConnector]: CDTParser initialized [2021-10-03 11:56:59,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/file-item-trans.wvr.c [2021-10-03 11:56:59,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34516b410/2a2ab957f1a34c38a5cc88fa657579ff/FLAG0c31d2b29 [2021-10-03 11:57:00,416 INFO L306 CDTParser]: Found 1 translation units. [2021-10-03 11:57:00,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/file-item-trans.wvr.c [2021-10-03 11:57:00,417 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-03 11:57:00,418 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-03 11:57:00,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34516b410/2a2ab957f1a34c38a5cc88fa657579ff/FLAG0c31d2b29 [2021-10-03 11:57:00,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34516b410/2a2ab957f1a34c38a5cc88fa657579ff [2021-10-03 11:57:00,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-03 11:57:00,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-03 11:57:00,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-03 11:57:00,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-03 11:57:00,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-03 11:57:00,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 11:57:00" (1/1) ... [2021-10-03 11:57:00,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eb684f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:00, skipping insertion in model container [2021-10-03 11:57:00,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 11:57:00" (1/1) ... [2021-10-03 11:57:00,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-03 11:57:00,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-03 11:57:00,927 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-03 11:57:00,973 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/chl/file-item-trans.wvr.c[1716,1729] [2021-10-03 11:57:00,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-03 11:57:00,988 INFO L203 MainTranslator]: Completed pre-run [2021-10-03 11:57:01,004 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-03 11:57:01,019 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/chl/file-item-trans.wvr.c[1716,1729] [2021-10-03 11:57:01,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-03 11:57:01,036 INFO L208 MainTranslator]: Completed translation [2021-10-03 11:57:01,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:01 WrapperNode [2021-10-03 11:57:01,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-03 11:57:01,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-03 11:57:01,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-03 11:57:01,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-03 11:57:01,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:01" (1/1) ... [2021-10-03 11:57:01,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:01" (1/1) ... [2021-10-03 11:57:01,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-03 11:57:01,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-03 11:57:01,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-03 11:57:01,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-03 11:57:01,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:01" (1/1) ... [2021-10-03 11:57:01,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:01" (1/1) ... [2021-10-03 11:57:01,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:01" (1/1) ... [2021-10-03 11:57:01,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:01" (1/1) ... [2021-10-03 11:57:01,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:01" (1/1) ... [2021-10-03 11:57:01,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:01" (1/1) ... [2021-10-03 11:57:01,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:01" (1/1) ... [2021-10-03 11:57:01,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-03 11:57:01,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-03 11:57:01,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-03 11:57:01,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-03 11:57:01,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:01" (1/1) ... [2021-10-03 11:57:01,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-03 11:57:01,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-03 11:57:01,155 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 11:57:01,170 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 11:57:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-03 11:57:01,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-03 11:57:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-03 11:57:01,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-03 11:57:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-03 11:57:01,215 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-03 11:57:01,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-03 11:57:01,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-03 11:57:01,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-03 11:57:01,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-03 11:57:01,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-03 11:57:01,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-03 11:57:01,218 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 11:57:01,664 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-03 11:57:01,664 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-03 11:57:01,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:57:01 BoogieIcfgContainer [2021-10-03 11:57:01,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-03 11:57:01,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-03 11:57:01,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-03 11:57:01,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-03 11:57:01,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 11:57:00" (1/3) ... [2021-10-03 11:57:01,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ff7e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 11:57:01, skipping insertion in model container [2021-10-03 11:57:01,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:57:01" (2/3) ... [2021-10-03 11:57:01,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ff7e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 11:57:01, skipping insertion in model container [2021-10-03 11:57:01,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:57:01" (3/3) ... [2021-10-03 11:57:01,679 INFO L111 eAbstractionObserver]: Analyzing ICFG file-item-trans.wvr.c [2021-10-03 11:57:01,685 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-03 11:57:01,686 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-03 11:57:01,686 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-03 11:57:01,687 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-03 11:57:01,743 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,744 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,744 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,744 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,745 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,745 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,745 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,746 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,746 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,746 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,750 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,751 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,751 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,751 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,752 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,752 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,752 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,753 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,753 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,753 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,755 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,755 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,768 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,769 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,769 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,769 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,769 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,770 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,774 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,774 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,774 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,775 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,775 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,775 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,786 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,786 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,786 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,787 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,787 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,787 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,788 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,788 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,788 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,789 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,791 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,791 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,792 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,792 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,793 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,793 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,794 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,794 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,798 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,798 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,799 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,799 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,800 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,800 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,802 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,803 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,803 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,804 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,804 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,805 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,805 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,806 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,806 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,807 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,807 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,807 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,808 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,808 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,808 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,809 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,809 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,810 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,810 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,811 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,812 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,812 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,813 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,823 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,824 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,824 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,824 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,825 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,825 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,826 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,826 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,841 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,842 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,842 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,843 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,844 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,845 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,845 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,845 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,848 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,849 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,851 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,851 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-03 11:57:01,886 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-03 11:57:01,941 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-03 11:57:01,951 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 11:57:01,951 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-03 11:57:01,973 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-03 11:57:01,987 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 181 transitions, 386 flow [2021-10-03 11:57:01,990 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 181 transitions, 386 flow [2021-10-03 11:57:01,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 172 places, 181 transitions, 386 flow [2021-10-03 11:57:02,097 INFO L129 PetriNetUnfolder]: 19/178 cut-off events. [2021-10-03 11:57:02,098 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-03 11:57:02,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 178 events. 19/178 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 369 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2021-10-03 11:57:02,134 INFO L116 LiptonReduction]: Number of co-enabled transitions 8448 [2021-10-03 11:57:09,596 INFO L131 LiptonReduction]: Checked pairs total: 8044 [2021-10-03 11:57:09,597 INFO L133 LiptonReduction]: Total number of compositions: 210 [2021-10-03 11:57:09,608 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 64 flow [2021-10-03 11:57:09,622 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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 11:57:09,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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 11:57:09,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-03 11:57:09,632 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:09,632 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 11:57:09,633 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:09,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:09,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1793349300, now seen corresponding path program 1 times [2021-10-03 11:57:09,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:09,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354020175] [2021-10-03 11:57:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:09,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:10,345 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 11:57:10,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:10,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354020175] [2021-10-03 11:57:10,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354020175] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:10,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:10,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-03 11:57:10,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099692496] [2021-10-03 11:57:10,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-03 11:57:10,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:10,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-03 11:57:10,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-03 11:57:10,383 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 11:57:10,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:10,678 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions. [2021-10-03 11:57:10,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-03 11:57:10,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-10-03 11:57:10,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:10,690 INFO L225 Difference]: With dead ends: 61 [2021-10-03 11:57:10,690 INFO L226 Difference]: Without dead ends: 52 [2021-10-03 11:57:10,692 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 277.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-03 11:57:10,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-03 11:57:10,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2021-10-03 11:57:10,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.813953488372093) internal successors, (78), 43 states have internal predecessors, (78), 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 11:57:10,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 78 transitions. [2021-10-03 11:57:10,732 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 78 transitions. Word has length 16 [2021-10-03 11:57:10,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:10,733 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 78 transitions. [2021-10-03 11:57:10,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 11:57:10,734 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 78 transitions. [2021-10-03 11:57:10,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-03 11:57:10,735 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:10,736 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 11:57:10,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-03 11:57:10,736 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:10,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:10,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1012213000, now seen corresponding path program 2 times [2021-10-03 11:57:10,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:10,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142958493] [2021-10-03 11:57:10,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:10,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:11,098 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 11:57:11,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:11,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142958493] [2021-10-03 11:57:11,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142958493] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:11,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:11,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-03 11:57:11,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420832814] [2021-10-03 11:57:11,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-03 11:57:11,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:11,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-03 11:57:11,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-03 11:57:11,103 INFO L87 Difference]: Start difference. First operand 44 states and 78 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 11:57:11,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:11,345 INFO L93 Difference]: Finished difference Result 63 states and 98 transitions. [2021-10-03 11:57:11,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-03 11:57:11,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-10-03 11:57:11,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:11,348 INFO L225 Difference]: With dead ends: 63 [2021-10-03 11:57:11,348 INFO L226 Difference]: Without dead ends: 50 [2021-10-03 11:57:11,349 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 241.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-03 11:57:11,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-03 11:57:11,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2021-10-03 11:57:11,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.7804878048780488) internal successors, (73), 41 states have internal predecessors, (73), 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 11:57:11,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 73 transitions. [2021-10-03 11:57:11,356 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 73 transitions. Word has length 16 [2021-10-03 11:57:11,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:11,357 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 73 transitions. [2021-10-03 11:57:11,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 11:57:11,358 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 73 transitions. [2021-10-03 11:57:11,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-03 11:57:11,359 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:11,359 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 11:57:11,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-03 11:57:11,360 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:11,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:11,360 INFO L82 PathProgramCache]: Analyzing trace with hash -890677038, now seen corresponding path program 3 times [2021-10-03 11:57:11,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:11,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088269430] [2021-10-03 11:57:11,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:11,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:11,645 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 11:57:11,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:11,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088269430] [2021-10-03 11:57:11,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088269430] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:11,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:11,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-03 11:57:11,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769789951] [2021-10-03 11:57:11,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-03 11:57:11,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:11,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-03 11:57:11,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-03 11:57:11,649 INFO L87 Difference]: Start difference. First operand 42 states and 73 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 11:57:11,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:11,829 INFO L93 Difference]: Finished difference Result 57 states and 86 transitions. [2021-10-03 11:57:11,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-03 11:57:11,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-10-03 11:57:11,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:11,831 INFO L225 Difference]: With dead ends: 57 [2021-10-03 11:57:11,832 INFO L226 Difference]: Without dead ends: 48 [2021-10-03 11:57:11,832 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 206.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-03 11:57:11,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-03 11:57:11,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40. [2021-10-03 11:57:11,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.7435897435897436) internal successors, (68), 39 states have internal predecessors, (68), 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 11:57:11,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 68 transitions. [2021-10-03 11:57:11,838 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 68 transitions. Word has length 16 [2021-10-03 11:57:11,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:11,839 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 68 transitions. [2021-10-03 11:57:11,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 11:57:11,839 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2021-10-03 11:57:11,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-03 11:57:11,840 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:11,840 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 11:57:11,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-03 11:57:11,841 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:11,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:11,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1343430456, now seen corresponding path program 4 times [2021-10-03 11:57:11,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:11,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539355657] [2021-10-03 11:57:11,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:11,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:12,076 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 11:57:12,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:12,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539355657] [2021-10-03 11:57:12,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539355657] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:12,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:12,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-03 11:57:12,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382851819] [2021-10-03 11:57:12,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-03 11:57:12,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:12,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-03 11:57:12,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-03 11:57:12,080 INFO L87 Difference]: Start difference. First operand 40 states and 68 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 11:57:12,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:12,277 INFO L93 Difference]: Finished difference Result 55 states and 87 transitions. [2021-10-03 11:57:12,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-03 11:57:12,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-10-03 11:57:12,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:12,279 INFO L225 Difference]: With dead ends: 55 [2021-10-03 11:57:12,279 INFO L226 Difference]: Without dead ends: 36 [2021-10-03 11:57:12,279 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 212.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-03 11:57:12,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-03 11:57:12,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-03 11:57:12,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 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 11:57:12,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2021-10-03 11:57:12,284 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 16 [2021-10-03 11:57:12,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:12,285 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2021-10-03 11:57:12,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 11:57:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2021-10-03 11:57:12,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-03 11:57:12,286 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:12,286 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 11:57:12,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-03 11:57:12,287 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:12,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:12,288 INFO L82 PathProgramCache]: Analyzing trace with hash -474357422, now seen corresponding path program 5 times [2021-10-03 11:57:12,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:12,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72214381] [2021-10-03 11:57:12,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:12,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:12,622 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 11:57:12,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:12,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72214381] [2021-10-03 11:57:12,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72214381] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:12,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:12,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-03 11:57:12,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289601574] [2021-10-03 11:57:12,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-03 11:57:12,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:12,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-03 11:57:12,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-03 11:57:12,627 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 11:57:12,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:12,821 INFO L93 Difference]: Finished difference Result 43 states and 63 transitions. [2021-10-03 11:57:12,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-03 11:57:12,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-10-03 11:57:12,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:12,823 INFO L225 Difference]: With dead ends: 43 [2021-10-03 11:57:12,823 INFO L226 Difference]: Without dead ends: 32 [2021-10-03 11:57:12,823 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 251.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-03 11:57:12,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-03 11:57:12,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-03 11:57:12,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 31 states have internal predecessors, (46), 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 11:57:12,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 46 transitions. [2021-10-03 11:57:12,828 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 46 transitions. Word has length 16 [2021-10-03 11:57:12,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:12,828 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 46 transitions. [2021-10-03 11:57:12,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 11:57:12,829 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2021-10-03 11:57:12,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-03 11:57:12,830 INFO L504 BasicCegarLoop]: Found error trace [2021-10-03 11:57:12,830 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-03 11:57:12,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-03 11:57:12,831 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-03 11:57:12,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-03 11:57:12,832 INFO L82 PathProgramCache]: Analyzing trace with hash 270345076, now seen corresponding path program 6 times [2021-10-03 11:57:12,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-03 11:57:12,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166448454] [2021-10-03 11:57:12,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-03 11:57:12,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-03 11:57:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-03 11:57:13,128 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 11:57:13,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-03 11:57:13,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166448454] [2021-10-03 11:57:13,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166448454] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-03 11:57:13,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-03 11:57:13,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-03 11:57:13,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750575693] [2021-10-03 11:57:13,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-03 11:57:13,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-03 11:57:13,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-03 11:57:13,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-03 11:57:13,133 INFO L87 Difference]: Start difference. First operand 32 states and 46 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 11:57:13,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-03 11:57:13,324 INFO L93 Difference]: Finished difference Result 31 states and 45 transitions. [2021-10-03 11:57:13,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-03 11:57:13,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-10-03 11:57:13,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-03 11:57:13,326 INFO L225 Difference]: With dead ends: 31 [2021-10-03 11:57:13,326 INFO L226 Difference]: Without dead ends: 0 [2021-10-03 11:57:13,326 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 250.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-03 11:57:13,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-03 11:57:13,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-03 11:57:13,327 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 11:57:13,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-03 11:57:13,327 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-10-03 11:57:13,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-03 11:57:13,327 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-03 11:57:13,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 11:57:13,328 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-03 11:57:13,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-03 11:57:13,330 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-03 11:57:13,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-03 11:57:13,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-03 11:57:13,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-03 11:57:13,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-03 11:57:13,337 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-03 11:57:13,337 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-03 11:57:13,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 11:57:13 BasicIcfg [2021-10-03 11:57:13,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-03 11:57:13,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-03 11:57:13,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-03 11:57:13,341 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-03 11:57:13,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:57:01" (3/4) ... [2021-10-03 11:57:13,346 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-03 11:57:13,355 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-03 11:57:13,355 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-03 11:57:13,355 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-03 11:57:13,361 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-03 11:57:13,361 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-03 11:57:13,361 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-03 11:57:13,411 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-03 11:57:13,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-03 11:57:13,413 INFO L168 Benchmark]: Toolchain (without parser) took 12660.49 ms. Allocated memory was 58.7 MB in the beginning and 104.9 MB in the end (delta: 46.1 MB). Free memory was 35.0 MB in the beginning and 32.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:13,414 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 46.1 MB. Free memory is still 23.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-03 11:57:13,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.18 ms. Allocated memory is still 58.7 MB. Free memory was 34.8 MB in the beginning and 37.6 MB in the end (delta: -2.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:13,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.49 ms. Allocated memory is still 58.7 MB. Free memory was 37.6 MB in the beginning and 35.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-03 11:57:13,416 INFO L168 Benchmark]: Boogie Preprocessor took 28.36 ms. Allocated memory is still 58.7 MB. Free memory was 35.9 MB in the beginning and 34.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:13,417 INFO L168 Benchmark]: RCFGBuilder took 557.89 ms. Allocated memory is still 58.7 MB. Free memory was 34.6 MB in the beginning and 33.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:13,417 INFO L168 Benchmark]: TraceAbstraction took 11669.53 ms. Allocated memory was 58.7 MB in the beginning and 104.9 MB in the end (delta: 46.1 MB). Free memory was 32.9 MB in the beginning and 35.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:13,418 INFO L168 Benchmark]: Witness Printer took 70.88 ms. Allocated memory is still 104.9 MB. Free memory was 35.8 MB in the beginning and 32.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-03 11:57:13,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 46.1 MB. Free memory is still 23.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 278.18 ms. Allocated memory is still 58.7 MB. Free memory was 34.8 MB in the beginning and 37.6 MB in the end (delta: -2.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.49 ms. Allocated memory is still 58.7 MB. Free memory was 37.6 MB in the beginning and 35.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.36 ms. Allocated memory is still 58.7 MB. Free memory was 35.9 MB in the beginning and 34.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 557.89 ms. Allocated memory is still 58.7 MB. Free memory was 34.6 MB in the beginning and 33.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11669.53 ms. Allocated memory was 58.7 MB in the beginning and 104.9 MB in the end (delta: 46.1 MB). Free memory was 32.9 MB in the beginning and 35.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. * Witness Printer took 70.88 ms. Allocated memory is still 104.9 MB. Free memory was 35.8 MB in the beginning and 32.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7607.5ms, 172 PlacesBefore, 30 PlacesAfterwards, 181 TransitionsBefore, 20 TransitionsAfterwards, 8448 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 39 ConcurrentYvCompositions, 19 ChoiceCompositions, 210 TotalNumberOfCompositions, 8044 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8044, positive: 8044, positive conditional: 0, positive unconditional: 8044, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6555, positive: 6555, positive conditional: 0, positive unconditional: 6555, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6555, positive: 6555, positive conditional: 0, positive unconditional: 6555, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8044, positive: 1489, positive conditional: 0, positive unconditional: 1489, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6555, unknown conditional: 0, unknown unconditional: 6555] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - 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: 54]: 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 7 procedures, 247 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 11397.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 15.3ms, AutomataDifference: 1357.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7670.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 126 SDtfs, 232 SDslu, 185 SDs, 0 SdLazy, 91 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 227.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1441.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 46.4ms AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.5ms SsaConstructionTime, 476.0ms SatisfiabilityAnalysisTime, 1582.0ms InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 1829 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-03 11:57:13,480 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...