./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-time-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-time-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 f2d05599d6fce1204a0d86fe3e19cae407be0ec265e139da4f0fd53a7d101655 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 15:17:20,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 15:17:20,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 15:17:20,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 15:17:20,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 15:17:20,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 15:17:20,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 15:17:20,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 15:17:20,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 15:17:20,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 15:17:20,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 15:17:20,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 15:17:20,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 15:17:20,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 15:17:20,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 15:17:20,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 15:17:20,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 15:17:20,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 15:17:20,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 15:17:20,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 15:17:20,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 15:17:20,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 15:17:20,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 15:17:20,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 15:17:20,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 15:17:20,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 15:17:20,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 15:17:20,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 15:17:20,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 15:17:20,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 15:17:20,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 15:17:20,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 15:17:20,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 15:17:20,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 15:17:20,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 15:17:20,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 15:17:20,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 15:17:20,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 15:17:20,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 15:17:20,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 15:17:20,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 15:17:20,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 15:17:20,607 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 15:17:20,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 15:17:20,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 15:17:20,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 15:17:20,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 15:17:20,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 15:17:20,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 15:17:20,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 15:17:20,610 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 15:17:20,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 15:17:20,610 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 15:17:20,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 15:17:20,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 15:17:20,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 15:17:20,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 15:17:20,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 15:17:20,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 15:17:20,612 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 15:17:20,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 15:17:20,612 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 15:17:20,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 15:17:20,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 15:17:20,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 15:17:20,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 15:17:20,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:17:20,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 15:17:20,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 15:17:20,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 15:17:20,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 15:17:20,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 15:17:20,614 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 15:17:20,614 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 15:17:20,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 15:17:20,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 15:17:20,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2d05599d6fce1204a0d86fe3e19cae407be0ec265e139da4f0fd53a7d101655 [2021-12-21 15:17:20,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 15:17:20,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 15:17:20,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 15:17:20,794 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 15:17:20,795 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 15:17:20,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2021-12-21 15:17:20,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c28ff1113/3e92a299f7ab4b388a59febac855eab4/FLAG7a1928962 [2021-12-21 15:17:21,204 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 15:17:21,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2021-12-21 15:17:21,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c28ff1113/3e92a299f7ab4b388a59febac855eab4/FLAG7a1928962 [2021-12-21 15:17:21,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c28ff1113/3e92a299f7ab4b388a59febac855eab4 [2021-12-21 15:17:21,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 15:17:21,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 15:17:21,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 15:17:21,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 15:17:21,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 15:17:21,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:17:21" (1/1) ... [2021-12-21 15:17:21,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a25e572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21, skipping insertion in model container [2021-12-21 15:17:21,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:17:21" (1/1) ... [2021-12-21 15:17:21,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 15:17:21,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 15:17:21,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-trans.wvr.c[2836,2849] [2021-12-21 15:17:21,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:17:21,439 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 15:17:21,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-trans.wvr.c[2836,2849] [2021-12-21 15:17:21,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:17:21,468 INFO L208 MainTranslator]: Completed translation [2021-12-21 15:17:21,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21 WrapperNode [2021-12-21 15:17:21,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 15:17:21,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 15:17:21,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 15:17:21,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 15:17:21,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21" (1/1) ... [2021-12-21 15:17:21,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21" (1/1) ... [2021-12-21 15:17:21,506 INFO L137 Inliner]: procedures = 23, calls = 39, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 214 [2021-12-21 15:17:21,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 15:17:21,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 15:17:21,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 15:17:21,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 15:17:21,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21" (1/1) ... [2021-12-21 15:17:21,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21" (1/1) ... [2021-12-21 15:17:21,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21" (1/1) ... [2021-12-21 15:17:21,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21" (1/1) ... [2021-12-21 15:17:21,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21" (1/1) ... [2021-12-21 15:17:21,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21" (1/1) ... [2021-12-21 15:17:21,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21" (1/1) ... [2021-12-21 15:17:21,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 15:17:21,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 15:17:21,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 15:17:21,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 15:17:21,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21" (1/1) ... [2021-12-21 15:17:21,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:17:21,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:17:21,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 15:17:21,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 15:17:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 15:17:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-21 15:17:21,631 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-21 15:17:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-21 15:17:21,631 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-21 15:17:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-21 15:17:21,631 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-21 15:17:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 15:17:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 15:17:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 15:17:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-21 15:17:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-21 15:17:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 15:17:21,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 15:17:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 15:17:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 15:17:21,633 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-21 15:17:21,696 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 15:17:21,698 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 15:17:21,976 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 15:17:22,320 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 15:17:22,321 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 15:17:22,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:17:22 BoogieIcfgContainer [2021-12-21 15:17:22,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 15:17:22,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 15:17:22,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 15:17:22,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 15:17:22,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:17:21" (1/3) ... [2021-12-21 15:17:22,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ae8e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:17:22, skipping insertion in model container [2021-12-21 15:17:22,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:17:21" (2/3) ... [2021-12-21 15:17:22,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ae8e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:17:22, skipping insertion in model container [2021-12-21 15:17:22,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:17:22" (3/3) ... [2021-12-21 15:17:22,346 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-time-trans.wvr.c [2021-12-21 15:17:22,350 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-21 15:17:22,351 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 15:17:22,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 15:17:22,351 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-21 15:17:22,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,411 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,412 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,416 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,416 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,416 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,416 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,431 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,431 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,432 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,432 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,433 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,433 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,433 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,433 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,433 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,433 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,434 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,434 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,434 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,434 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,434 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,435 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,435 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,435 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,436 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,436 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,437 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,437 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,437 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,437 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,438 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,438 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,438 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,438 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,438 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,439 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,439 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,440 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,440 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,440 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,440 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,440 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,440 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,441 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,441 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,441 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,441 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,442 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,442 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,442 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,443 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,447 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,449 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,450 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,450 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,450 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,456 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,456 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,457 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,457 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,457 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,457 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,457 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,457 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,457 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,457 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,458 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,458 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,458 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,458 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,471 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,472 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,472 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,472 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,472 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,472 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,472 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,473 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,473 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,473 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,473 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,473 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 15:17:22,476 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-12-21 15:17:22,545 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:17:22,567 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-21 15:17:22,567 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-21 15:17:22,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 110 transitions, 244 flow [2021-12-21 15:17:22,671 INFO L129 PetriNetUnfolder]: 1/107 cut-off events. [2021-12-21 15:17:22,671 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-21 15:17:22,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 107 events. 1/107 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2021-12-21 15:17:22,673 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 110 transitions, 244 flow [2021-12-21 15:17:22,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 96 transitions, 210 flow [2021-12-21 15:17:22,733 INFO L129 PetriNetUnfolder]: 1/95 cut-off events. [2021-12-21 15:17:22,733 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-21 15:17:22,733 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:17:22,734 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:17:22,734 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-21 15:17:22,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:17:22,740 INFO L85 PathProgramCache]: Analyzing trace with hash 428084254, now seen corresponding path program 1 times [2021-12-21 15:17:22,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:17:22,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531466174] [2021-12-21 15:17:22,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:17:22,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:17:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:17:23,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:17:23,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:17:23,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531466174] [2021-12-21 15:17:23,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531466174] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:17:23,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:17:23,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:17:23,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720023103] [2021-12-21 15:17:23,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:17:23,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:17:23,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:17:23,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:17:23,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:17:23,481 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-12-21 15:17:23,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 96 transitions, 210 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-12-21 15:17:23,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:17:23,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-12-21 15:17:23,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:17:23,839 INFO L129 PetriNetUnfolder]: 14/186 cut-off events. [2021-12-21 15:17:23,839 INFO L130 PetriNetUnfolder]: For 49/55 co-relation queries the response was YES. [2021-12-21 15:17:23,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 186 events. 14/186 cut-off events. For 49/55 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 425 event pairs, 7 based on Foata normal form. 4/182 useless extension candidates. Maximal degree in co-relation 129. Up to 38 conditions per place. [2021-12-21 15:17:23,842 INFO L132 encePairwiseOnDemand]: 100/110 looper letters, 38 selfloop transitions, 4 changer transitions 10/115 dead transitions. [2021-12-21 15:17:23,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 115 transitions, 376 flow [2021-12-21 15:17:23,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 15:17:23,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-21 15:17:23,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 816 transitions. [2021-12-21 15:17:23,854 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7418181818181818 [2021-12-21 15:17:23,854 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 816 transitions. [2021-12-21 15:17:23,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 816 transitions. [2021-12-21 15:17:23,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:17:23,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 816 transitions. [2021-12-21 15:17:23,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 81.6) internal successors, (816), 10 states have internal predecessors, (816), 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) [2021-12-21 15:17:23,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 110.0) internal successors, (1210), 11 states have internal predecessors, (1210), 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) [2021-12-21 15:17:23,868 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 110.0) internal successors, (1210), 11 states have internal predecessors, (1210), 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) [2021-12-21 15:17:23,870 INFO L186 Difference]: Start difference. First operand has 105 places, 96 transitions, 210 flow. Second operand 10 states and 816 transitions. [2021-12-21 15:17:23,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 115 transitions, 376 flow [2021-12-21 15:17:23,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 115 transitions, 348 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-12-21 15:17:23,882 INFO L242 Difference]: Finished difference. Result has 113 places, 95 transitions, 217 flow [2021-12-21 15:17:23,884 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=217, PETRI_PLACES=113, PETRI_TRANSITIONS=95} [2021-12-21 15:17:23,886 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 8 predicate places. [2021-12-21 15:17:23,886 INFO L470 AbstractCegarLoop]: Abstraction has has 113 places, 95 transitions, 217 flow [2021-12-21 15:17:23,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-12-21 15:17:23,887 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:17:23,887 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:17:23,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 15:17:23,888 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-21 15:17:23,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:17:23,888 INFO L85 PathProgramCache]: Analyzing trace with hash -397063098, now seen corresponding path program 2 times [2021-12-21 15:17:23,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:17:23,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981331855] [2021-12-21 15:17:23,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:17:23,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:17:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:17:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:17:24,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:17:24,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981331855] [2021-12-21 15:17:24,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981331855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:17:24,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:17:24,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:17:24,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441616668] [2021-12-21 15:17:24,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:17:24,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:17:24,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:17:24,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:17:24,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:17:24,072 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-12-21 15:17:24,073 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 95 transitions, 217 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-12-21 15:17:24,073 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:17:24,073 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-12-21 15:17:24,073 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:17:24,315 INFO L129 PetriNetUnfolder]: 13/212 cut-off events. [2021-12-21 15:17:24,315 INFO L130 PetriNetUnfolder]: For 60/68 co-relation queries the response was YES. [2021-12-21 15:17:24,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 212 events. 13/212 cut-off events. For 60/68 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 652 event pairs, 5 based on Foata normal form. 2/208 useless extension candidates. Maximal degree in co-relation 330. Up to 34 conditions per place. [2021-12-21 15:17:24,317 INFO L132 encePairwiseOnDemand]: 102/110 looper letters, 38 selfloop transitions, 5 changer transitions 8/114 dead transitions. [2021-12-21 15:17:24,317 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 114 transitions, 384 flow [2021-12-21 15:17:24,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 15:17:24,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-21 15:17:24,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 659 transitions. [2021-12-21 15:17:24,319 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7488636363636364 [2021-12-21 15:17:24,319 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 659 transitions. [2021-12-21 15:17:24,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 659 transitions. [2021-12-21 15:17:24,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:17:24,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 659 transitions. [2021-12-21 15:17:24,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 82.375) internal successors, (659), 8 states have internal predecessors, (659), 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) [2021-12-21 15:17:24,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2021-12-21 15:17:24,323 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2021-12-21 15:17:24,323 INFO L186 Difference]: Start difference. First operand has 113 places, 95 transitions, 217 flow. Second operand 8 states and 659 transitions. [2021-12-21 15:17:24,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 114 transitions, 384 flow [2021-12-21 15:17:24,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 114 transitions, 361 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-12-21 15:17:24,326 INFO L242 Difference]: Finished difference. Result has 114 places, 96 transitions, 234 flow [2021-12-21 15:17:24,326 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=234, PETRI_PLACES=114, PETRI_TRANSITIONS=96} [2021-12-21 15:17:24,327 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 9 predicate places. [2021-12-21 15:17:24,327 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 96 transitions, 234 flow [2021-12-21 15:17:24,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-12-21 15:17:24,328 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:17:24,328 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:17:24,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 15:17:24,328 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-21 15:17:24,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:17:24,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1349177898, now seen corresponding path program 3 times [2021-12-21 15:17:24,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:17:24,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438711332] [2021-12-21 15:17:24,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:17:24,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:17:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:17:24,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:17:24,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:17:24,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438711332] [2021-12-21 15:17:24,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438711332] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:17:24,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:17:24,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:17:24,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242311960] [2021-12-21 15:17:24,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:17:24,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:17:24,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:17:24,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:17:24,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:17:24,475 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-12-21 15:17:24,476 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 96 transitions, 234 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-12-21 15:17:24,476 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:17:24,476 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-12-21 15:17:24,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:17:24,685 INFO L129 PetriNetUnfolder]: 11/194 cut-off events. [2021-12-21 15:17:24,685 INFO L130 PetriNetUnfolder]: For 93/99 co-relation queries the response was YES. [2021-12-21 15:17:24,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 194 events. 11/194 cut-off events. For 93/99 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 511 event pairs, 3 based on Foata normal form. 2/192 useless extension candidates. Maximal degree in co-relation 328. Up to 32 conditions per place. [2021-12-21 15:17:24,686 INFO L132 encePairwiseOnDemand]: 102/110 looper letters, 38 selfloop transitions, 5 changer transitions 10/116 dead transitions. [2021-12-21 15:17:24,686 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 116 transitions, 419 flow [2021-12-21 15:17:24,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 15:17:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-21 15:17:24,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 659 transitions. [2021-12-21 15:17:24,688 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7488636363636364 [2021-12-21 15:17:24,688 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 659 transitions. [2021-12-21 15:17:24,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 659 transitions. [2021-12-21 15:17:24,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:17:24,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 659 transitions. [2021-12-21 15:17:24,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 82.375) internal successors, (659), 8 states have internal predecessors, (659), 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) [2021-12-21 15:17:24,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2021-12-21 15:17:24,691 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2021-12-21 15:17:24,691 INFO L186 Difference]: Start difference. First operand has 114 places, 96 transitions, 234 flow. Second operand 8 states and 659 transitions. [2021-12-21 15:17:24,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 116 transitions, 419 flow [2021-12-21 15:17:24,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 116 transitions, 393 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-12-21 15:17:24,694 INFO L242 Difference]: Finished difference. Result has 118 places, 96 transitions, 244 flow [2021-12-21 15:17:24,695 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=244, PETRI_PLACES=118, PETRI_TRANSITIONS=96} [2021-12-21 15:17:24,695 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 13 predicate places. [2021-12-21 15:17:24,696 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 96 transitions, 244 flow [2021-12-21 15:17:24,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-12-21 15:17:24,696 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:17:24,696 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:17:24,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 15:17:24,697 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-21 15:17:24,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:17:24,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1077336608, now seen corresponding path program 4 times [2021-12-21 15:17:24,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:17:24,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290495548] [2021-12-21 15:17:24,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:17:24,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:17:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:17:24,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:17:24,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:17:24,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290495548] [2021-12-21 15:17:24,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290495548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:17:24,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:17:24,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:17:24,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267120432] [2021-12-21 15:17:24,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:17:24,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:17:24,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:17:24,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:17:24,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:17:24,842 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-12-21 15:17:24,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 96 transitions, 244 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-12-21 15:17:24,842 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:17:24,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-12-21 15:17:24,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:17:25,009 INFO L129 PetriNetUnfolder]: 8/157 cut-off events. [2021-12-21 15:17:25,010 INFO L130 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2021-12-21 15:17:25,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 157 events. 8/157 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 279 event pairs, 4 based on Foata normal form. 1/155 useless extension candidates. Maximal degree in co-relation 276. Up to 26 conditions per place. [2021-12-21 15:17:25,010 INFO L132 encePairwiseOnDemand]: 102/110 looper letters, 28 selfloop transitions, 3 changer transitions 13/107 dead transitions. [2021-12-21 15:17:25,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 107 transitions, 379 flow [2021-12-21 15:17:25,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 15:17:25,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-21 15:17:25,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 652 transitions. [2021-12-21 15:17:25,012 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.740909090909091 [2021-12-21 15:17:25,013 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 652 transitions. [2021-12-21 15:17:25,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 652 transitions. [2021-12-21 15:17:25,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:17:25,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 652 transitions. [2021-12-21 15:17:25,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 81.5) internal successors, (652), 8 states have internal predecessors, (652), 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) [2021-12-21 15:17:25,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2021-12-21 15:17:25,016 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2021-12-21 15:17:25,016 INFO L186 Difference]: Start difference. First operand has 118 places, 96 transitions, 244 flow. Second operand 8 states and 652 transitions. [2021-12-21 15:17:25,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 107 transitions, 379 flow [2021-12-21 15:17:25,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 107 transitions, 352 flow, removed 9 selfloop flow, removed 7 redundant places. [2021-12-21 15:17:25,019 INFO L242 Difference]: Finished difference. Result has 119 places, 94 transitions, 225 flow [2021-12-21 15:17:25,019 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=225, PETRI_PLACES=119, PETRI_TRANSITIONS=94} [2021-12-21 15:17:25,020 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 14 predicate places. [2021-12-21 15:17:25,020 INFO L470 AbstractCegarLoop]: Abstraction has has 119 places, 94 transitions, 225 flow [2021-12-21 15:17:25,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-12-21 15:17:25,020 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:17:25,020 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:17:25,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 15:17:25,021 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-21 15:17:25,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:17:25,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1908982828, now seen corresponding path program 5 times [2021-12-21 15:17:25,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:17:25,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817003533] [2021-12-21 15:17:25,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:17:25,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:17:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:17:25,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:17:25,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:17:25,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817003533] [2021-12-21 15:17:25,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817003533] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:17:25,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:17:25,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:17:25,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535698419] [2021-12-21 15:17:25,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:17:25,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:17:25,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:17:25,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:17:25,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:17:25,190 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-12-21 15:17:25,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 94 transitions, 225 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-12-21 15:17:25,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:17:25,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-12-21 15:17:25,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:17:25,416 INFO L129 PetriNetUnfolder]: 1/119 cut-off events. [2021-12-21 15:17:25,416 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2021-12-21 15:17:25,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 119 events. 1/119 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 106 event pairs, 0 based on Foata normal form. 1/120 useless extension candidates. Maximal degree in co-relation 191. Up to 22 conditions per place. [2021-12-21 15:17:25,417 INFO L132 encePairwiseOnDemand]: 102/110 looper letters, 28 selfloop transitions, 3 changer transitions 9/103 dead transitions. [2021-12-21 15:17:25,417 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 103 transitions, 348 flow [2021-12-21 15:17:25,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 15:17:25,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-21 15:17:25,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 649 transitions. [2021-12-21 15:17:25,418 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7375 [2021-12-21 15:17:25,418 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 649 transitions. [2021-12-21 15:17:25,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 649 transitions. [2021-12-21 15:17:25,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:17:25,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 649 transitions. [2021-12-21 15:17:25,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 81.125) internal successors, (649), 8 states have internal predecessors, (649), 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) [2021-12-21 15:17:25,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2021-12-21 15:17:25,421 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2021-12-21 15:17:25,422 INFO L186 Difference]: Start difference. First operand has 119 places, 94 transitions, 225 flow. Second operand 8 states and 649 transitions. [2021-12-21 15:17:25,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 103 transitions, 348 flow [2021-12-21 15:17:25,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 103 transitions, 308 flow, removed 10 selfloop flow, removed 11 redundant places. [2021-12-21 15:17:25,424 INFO L242 Difference]: Finished difference. Result has 115 places, 94 transitions, 217 flow [2021-12-21 15:17:25,424 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=217, PETRI_PLACES=115, PETRI_TRANSITIONS=94} [2021-12-21 15:17:25,425 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 10 predicate places. [2021-12-21 15:17:25,425 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 94 transitions, 217 flow [2021-12-21 15:17:25,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-12-21 15:17:25,425 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 15:17:25,425 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:17:25,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 15:17:25,426 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-21 15:17:25,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:17:25,426 INFO L85 PathProgramCache]: Analyzing trace with hash 193387974, now seen corresponding path program 6 times [2021-12-21 15:17:25,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:17:25,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841909754] [2021-12-21 15:17:25,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:17:25,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:17:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:17:25,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:17:25,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:17:25,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841909754] [2021-12-21 15:17:25,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841909754] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:17:25,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:17:25,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:17:25,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603570166] [2021-12-21 15:17:25,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:17:25,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:17:25,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:17:25,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:17:25,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:17:25,551 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-12-21 15:17:25,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 94 transitions, 217 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-12-21 15:17:25,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 15:17:25,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-12-21 15:17:25,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 15:17:25,726 INFO L129 PetriNetUnfolder]: 1/98 cut-off events. [2021-12-21 15:17:25,726 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-12-21 15:17:25,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 98 events. 1/98 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 1 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 151. Up to 23 conditions per place. [2021-12-21 15:17:25,726 INFO L132 encePairwiseOnDemand]: 102/110 looper letters, 0 selfloop transitions, 0 changer transitions 92/92 dead transitions. [2021-12-21 15:17:25,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 92 transitions, 277 flow [2021-12-21 15:17:25,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 15:17:25,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-21 15:17:25,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 640 transitions. [2021-12-21 15:17:25,728 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2021-12-21 15:17:25,728 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 640 transitions. [2021-12-21 15:17:25,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 640 transitions. [2021-12-21 15:17:25,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 15:17:25,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 640 transitions. [2021-12-21 15:17:25,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 80.0) internal successors, (640), 8 states have internal predecessors, (640), 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) [2021-12-21 15:17:25,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2021-12-21 15:17:25,730 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 110.0) internal successors, (990), 9 states have internal predecessors, (990), 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) [2021-12-21 15:17:25,731 INFO L186 Difference]: Start difference. First operand has 115 places, 94 transitions, 217 flow. Second operand 8 states and 640 transitions. [2021-12-21 15:17:25,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 92 transitions, 277 flow [2021-12-21 15:17:25,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 92 transitions, 265 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-12-21 15:17:25,732 INFO L242 Difference]: Finished difference. Result has 110 places, 0 transitions, 0 flow [2021-12-21 15:17:25,733 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=110, PETRI_TRANSITIONS=0} [2021-12-21 15:17:25,733 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 5 predicate places. [2021-12-21 15:17:25,733 INFO L470 AbstractCegarLoop]: Abstraction has has 110 places, 0 transitions, 0 flow [2021-12-21 15:17:25,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-12-21 15:17:25,736 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-12-21 15:17:25,736 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-12-21 15:17:25,736 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-12-21 15:17:25,737 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2021-12-21 15:17:25,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 15:17:25,740 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2021-12-21 15:17:25,741 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-21 15:17:25,742 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 15:17:25,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 03:17:25 BasicIcfg [2021-12-21 15:17:25,745 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 15:17:25,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 15:17:25,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 15:17:25,745 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 15:17:25,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:17:22" (3/4) ... [2021-12-21 15:17:25,748 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 15:17:25,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-12-21 15:17:25,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-12-21 15:17:25,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-12-21 15:17:25,755 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-12-21 15:17:25,755 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-21 15:17:25,755 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 15:17:25,755 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 15:17:25,777 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 15:17:25,778 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 15:17:25,778 INFO L158 Benchmark]: Toolchain (without parser) took 4553.48ms. Allocated memory was 123.7MB in the beginning and 199.2MB in the end (delta: 75.5MB). Free memory was 95.7MB in the beginning and 155.6MB in the end (delta: -59.9MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2021-12-21 15:17:25,779 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 15:17:25,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.56ms. Allocated memory is still 123.7MB. Free memory was 95.7MB in the beginning and 99.4MB in the end (delta: -3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 15:17:25,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.23ms. Allocated memory is still 123.7MB. Free memory was 99.4MB in the beginning and 97.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 15:17:25,779 INFO L158 Benchmark]: Boogie Preprocessor took 20.35ms. Allocated memory is still 123.7MB. Free memory was 97.1MB in the beginning and 95.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 15:17:25,780 INFO L158 Benchmark]: RCFGBuilder took 794.44ms. Allocated memory is still 123.7MB. Free memory was 95.3MB in the beginning and 81.6MB in the end (delta: 13.7MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2021-12-21 15:17:25,780 INFO L158 Benchmark]: TraceAbstraction took 3419.29ms. Allocated memory was 123.7MB in the beginning and 199.2MB in the end (delta: 75.5MB). Free memory was 81.6MB in the beginning and 158.7MB in the end (delta: -77.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 15:17:25,780 INFO L158 Benchmark]: Witness Printer took 32.77ms. Allocated memory is still 199.2MB. Free memory was 158.7MB in the beginning and 155.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 15:17:25,781 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.56ms. Allocated memory is still 123.7MB. Free memory was 95.7MB in the beginning and 99.4MB in the end (delta: -3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.23ms. Allocated memory is still 123.7MB. Free memory was 99.4MB in the beginning and 97.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.35ms. Allocated memory is still 123.7MB. Free memory was 97.1MB in the beginning and 95.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 794.44ms. Allocated memory is still 123.7MB. Free memory was 95.3MB in the beginning and 81.6MB in the end (delta: 13.7MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3419.29ms. Allocated memory was 123.7MB in the beginning and 199.2MB in the end (delta: 75.5MB). Free memory was 81.6MB in the beginning and 158.7MB in the end (delta: -77.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 32.77ms. Allocated memory is still 199.2MB. Free memory was 158.7MB in the beginning and 155.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 93]: 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, 125 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 562 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 695 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 711 IncrementalHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 136 mSDtfsCounter, 711 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=3, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 564 NumberOfCodeBlocks, 564 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 558 ConstructedInterpolants, 0 QuantifiedInterpolants, 2984 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! [2021-12-21 15:17:25,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE