./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-lit/fkp2013-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/pthread-lit/fkp2013-2.i -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 e812004a84a4494a04d3a026bee09dbf1dbf7d202520f02258b12ac817a7a74e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 22:23:12,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 22:23:12,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 22:23:12,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 22:23:12,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 22:23:12,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 22:23:12,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 22:23:12,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 22:23:12,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 22:23:12,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 22:23:12,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 22:23:12,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 22:23:12,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 22:23:12,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 22:23:12,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 22:23:12,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 22:23:12,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 22:23:12,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 22:23:12,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 22:23:12,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 22:23:12,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 22:23:12,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 22:23:12,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 22:23:12,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 22:23:12,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 22:23:12,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 22:23:12,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 22:23:12,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 22:23:12,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 22:23:12,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 22:23:12,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 22:23:12,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 22:23:12,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 22:23:12,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 22:23:12,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 22:23:12,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 22:23:12,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 22:23:12,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 22:23:12,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 22:23:12,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 22:23:12,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 22:23:12,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 22:23:12,556 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 22:23:12,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 22:23:12,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 22:23:12,558 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 22:23:12,559 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 22:23:12,559 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 22:23:12,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 22:23:12,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 22:23:12,561 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 22:23:12,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 22:23:12,562 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 22:23:12,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 22:23:12,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 22:23:12,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 22:23:12,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 22:23:12,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 22:23:12,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 22:23:12,563 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 22:23:12,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 22:23:12,564 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 22:23:12,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 22:23:12,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 22:23:12,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 22:23:12,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 22:23:12,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:23:12,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 22:23:12,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 22:23:12,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 22:23:12,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 22:23:12,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 22:23:12,567 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 22:23:12,567 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 22:23:12,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 22:23:12,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 22:23:12,568 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e812004a84a4494a04d3a026bee09dbf1dbf7d202520f02258b12ac817a7a74e [2021-12-17 22:23:12,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 22:23:12,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 22:23:12,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 22:23:12,849 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 22:23:12,850 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 22:23:12,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-lit/fkp2013-2.i [2021-12-17 22:23:12,920 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e2e4f14a/960b9f634a2a45ae82c3e08d65a42f32/FLAG96ca5b2ae [2021-12-17 22:23:13,405 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 22:23:13,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/fkp2013-2.i [2021-12-17 22:23:13,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e2e4f14a/960b9f634a2a45ae82c3e08d65a42f32/FLAG96ca5b2ae [2021-12-17 22:23:13,731 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e2e4f14a/960b9f634a2a45ae82c3e08d65a42f32 [2021-12-17 22:23:13,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 22:23:13,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 22:23:13,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 22:23:13,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 22:23:13,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 22:23:13,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:23:13" (1/1) ... [2021-12-17 22:23:13,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d927a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:13, skipping insertion in model container [2021-12-17 22:23:13,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:23:13" (1/1) ... [2021-12-17 22:23:13,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 22:23:13,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 22:23:14,089 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/pthread-lit/fkp2013-2.i[30003,30016] [2021-12-17 22:23:14,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:23:14,111 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 22:23:14,150 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/pthread-lit/fkp2013-2.i[30003,30016] [2021-12-17 22:23:14,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:23:14,192 INFO L208 MainTranslator]: Completed translation [2021-12-17 22:23:14,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:14 WrapperNode [2021-12-17 22:23:14,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 22:23:14,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 22:23:14,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 22:23:14,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 22:23:14,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:14" (1/1) ... [2021-12-17 22:23:14,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:14" (1/1) ... [2021-12-17 22:23:14,251 INFO L137 Inliner]: procedures = 172, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2021-12-17 22:23:14,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 22:23:14,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 22:23:14,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 22:23:14,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 22:23:14,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:14" (1/1) ... [2021-12-17 22:23:14,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:14" (1/1) ... [2021-12-17 22:23:14,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:14" (1/1) ... [2021-12-17 22:23:14,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:14" (1/1) ... [2021-12-17 22:23:14,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:14" (1/1) ... [2021-12-17 22:23:14,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:14" (1/1) ... [2021-12-17 22:23:14,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:14" (1/1) ... [2021-12-17 22:23:14,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 22:23:14,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 22:23:14,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 22:23:14,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 22:23:14,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:14" (1/1) ... [2021-12-17 22:23:14,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:23:14,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:23:14,318 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) [2021-12-17 22:23:14,321 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 [2021-12-17 22:23:14,347 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-12-17 22:23:14,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-12-17 22:23:14,347 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-12-17 22:23:14,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-12-17 22:23:14,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 22:23:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 22:23:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 22:23:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 22:23:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 22:23:14,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 22:23:14,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 22:23:14,350 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-17 22:23:14,503 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 22:23:14,505 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 22:23:14,649 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 22:23:14,655 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 22:23:14,655 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 22:23:14,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:23:14 BoogieIcfgContainer [2021-12-17 22:23:14,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 22:23:14,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 22:23:14,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 22:23:14,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 22:23:14,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 10:23:13" (1/3) ... [2021-12-17 22:23:14,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db59431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:23:14, skipping insertion in model container [2021-12-17 22:23:14,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:23:14" (2/3) ... [2021-12-17 22:23:14,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db59431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:23:14, skipping insertion in model container [2021-12-17 22:23:14,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:23:14" (3/3) ... [2021-12-17 22:23:14,663 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013-2.i [2021-12-17 22:23:14,667 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-17 22:23:14,668 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 22:23:14,668 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 22:23:14,668 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-17 22:23:14,707 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,707 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,708 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,708 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,708 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,708 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,708 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,709 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,709 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,709 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,710 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,710 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,710 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,711 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,711 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,711 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,711 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,712 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,713 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,713 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,713 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,713 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,714 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,715 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,715 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,716 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,716 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,716 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,716 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,717 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,717 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,717 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,717 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,717 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,718 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,718 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,719 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,719 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,720 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,720 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,720 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,720 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,727 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,727 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,728 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,728 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,728 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,734 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,734 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,734 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,735 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,735 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,735 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:14,736 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-17 22:23:14,785 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 22:23:14,797 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 [2021-12-17 22:23:14,798 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-17 22:23:14,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 68 transitions, 146 flow [2021-12-17 22:23:14,861 INFO L129 PetriNetUnfolder]: 3/81 cut-off events. [2021-12-17 22:23:14,862 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-17 22:23:14,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 81 events. 3/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 60. Up to 4 conditions per place. [2021-12-17 22:23:14,866 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 68 transitions, 146 flow [2021-12-17 22:23:14,870 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 67 transitions, 142 flow [2021-12-17 22:23:14,884 INFO L129 PetriNetUnfolder]: 1/43 cut-off events. [2021-12-17 22:23:14,884 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-17 22:23:14,885 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:14,885 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] [2021-12-17 22:23:14,886 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 22:23:14,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:14,890 INFO L85 PathProgramCache]: Analyzing trace with hash 702214347, now seen corresponding path program 1 times [2021-12-17 22:23:14,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:14,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035654017] [2021-12-17 22:23:14,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:14,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:23:15,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:15,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035654017] [2021-12-17 22:23:15,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035654017] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:15,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:15,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 22:23:15,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675626279] [2021-12-17 22:23:15,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:15,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 22:23:15,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:15,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 22:23:15,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 22:23:15,169 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 68 [2021-12-17 22:23:15,171 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 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) [2021-12-17 22:23:15,171 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:15,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 68 [2021-12-17 22:23:15,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:15,278 INFO L129 PetriNetUnfolder]: 11/142 cut-off events. [2021-12-17 22:23:15,280 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-12-17 22:23:15,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 142 events. 11/142 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 468 event pairs, 2 based on Foata normal form. 20/155 useless extension candidates. Maximal degree in co-relation 165. Up to 10 conditions per place. [2021-12-17 22:23:15,287 INFO L132 encePairwiseOnDemand]: 60/68 looper letters, 16 selfloop transitions, 8 changer transitions 0/77 dead transitions. [2021-12-17 22:23:15,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 77 transitions, 216 flow [2021-12-17 22:23:15,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 22:23:15,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-17 22:23:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 466 transitions. [2021-12-17 22:23:15,299 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8566176470588235 [2021-12-17 22:23:15,299 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 466 transitions. [2021-12-17 22:23:15,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 466 transitions. [2021-12-17 22:23:15,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:15,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 466 transitions. [2021-12-17 22:23:15,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.25) internal successors, (466), 8 states have internal predecessors, (466), 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) [2021-12-17 22:23:15,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 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) [2021-12-17 22:23:15,312 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 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) [2021-12-17 22:23:15,313 INFO L186 Difference]: Start difference. First operand has 71 places, 67 transitions, 142 flow. Second operand 8 states and 466 transitions. [2021-12-17 22:23:15,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 77 transitions, 216 flow [2021-12-17 22:23:15,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 77 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-17 22:23:15,318 INFO L242 Difference]: Finished difference. Result has 80 places, 70 transitions, 183 flow [2021-12-17 22:23:15,320 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=183, PETRI_PLACES=80, PETRI_TRANSITIONS=70} [2021-12-17 22:23:15,328 INFO L334 CegarLoopForPetriNet]: 71 programPoint places, 9 predicate places. [2021-12-17 22:23:15,328 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 70 transitions, 183 flow [2021-12-17 22:23:15,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 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) [2021-12-17 22:23:15,329 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:15,329 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:23:15,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 22:23:15,329 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 22:23:15,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:15,330 INFO L85 PathProgramCache]: Analyzing trace with hash 30111252, now seen corresponding path program 1 times [2021-12-17 22:23:15,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:15,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382683618] [2021-12-17 22:23:15,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:15,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 22:23:15,360 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 22:23:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 22:23:15,401 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 22:23:15,401 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 22:23:15,403 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 4 remaining) [2021-12-17 22:23:15,404 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-12-17 22:23:15,404 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 4 remaining) [2021-12-17 22:23:15,405 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-12-17 22:23:15,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 22:23:15,408 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 22:23:15,409 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-17 22:23:15,409 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-12-17 22:23:15,420 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,420 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,421 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,421 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,421 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,421 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,421 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,422 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,422 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,422 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,422 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,422 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,423 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,423 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,423 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,423 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,423 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,423 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,424 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,424 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,424 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,424 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,424 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,425 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,425 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,425 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,425 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,425 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,425 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,426 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,426 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,426 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,426 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,426 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,426 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,427 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,430 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,430 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,430 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,430 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,430 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,431 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,431 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,431 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,431 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,431 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,432 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,432 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,432 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,432 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,432 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,432 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,433 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,433 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,433 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,433 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,433 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,434 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,434 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,434 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,434 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,434 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,434 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,435 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,435 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,435 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,435 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,435 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,436 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,436 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,436 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,436 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,437 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,437 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,437 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,438 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,438 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,438 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,439 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,440 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,440 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,440 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,440 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,440 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,441 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,444 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,444 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,445 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,445 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,445 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,446 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:15,447 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-17 22:23:15,452 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 22:23:15,454 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 [2021-12-17 22:23:15,454 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-12-17 22:23:15,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 89 transitions, 202 flow [2021-12-17 22:23:15,474 INFO L129 PetriNetUnfolder]: 4/107 cut-off events. [2021-12-17 22:23:15,475 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-17 22:23:15,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 107 events. 4/107 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 144 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 116. Up to 6 conditions per place. [2021-12-17 22:23:15,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 89 transitions, 202 flow [2021-12-17 22:23:15,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 74 transitions, 163 flow [2021-12-17 22:23:15,483 INFO L129 PetriNetUnfolder]: 1/43 cut-off events. [2021-12-17 22:23:15,484 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-17 22:23:15,484 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:15,484 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] [2021-12-17 22:23:15,484 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-17 22:23:15,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:15,485 INFO L85 PathProgramCache]: Analyzing trace with hash -980089482, now seen corresponding path program 1 times [2021-12-17 22:23:15,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:15,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932425477] [2021-12-17 22:23:15,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:15,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:15,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:23:15,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:15,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932425477] [2021-12-17 22:23:15,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932425477] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:15,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:15,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 22:23:15,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878664611] [2021-12-17 22:23:15,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:15,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 22:23:15,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:15,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 22:23:15,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 22:23:15,566 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 89 [2021-12-17 22:23:15,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 74 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 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) [2021-12-17 22:23:15,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:15,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 89 [2021-12-17 22:23:15,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:15,719 INFO L129 PetriNetUnfolder]: 97/386 cut-off events. [2021-12-17 22:23:15,721 INFO L130 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2021-12-17 22:23:15,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 386 events. 97/386 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2114 event pairs, 6 based on Foata normal form. 95/459 useless extension candidates. Maximal degree in co-relation 625. Up to 55 conditions per place. [2021-12-17 22:23:15,728 INFO L132 encePairwiseOnDemand]: 80/89 looper letters, 42 selfloop transitions, 11 changer transitions 0/110 dead transitions. [2021-12-17 22:23:15,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 110 transitions, 377 flow [2021-12-17 22:23:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 22:23:15,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-17 22:23:15,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 607 transitions. [2021-12-17 22:23:15,734 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8525280898876404 [2021-12-17 22:23:15,734 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 607 transitions. [2021-12-17 22:23:15,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 607 transitions. [2021-12-17 22:23:15,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:15,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 607 transitions. [2021-12-17 22:23:15,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 75.875) internal successors, (607), 8 states have internal predecessors, (607), 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) [2021-12-17 22:23:15,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 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) [2021-12-17 22:23:15,742 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 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) [2021-12-17 22:23:15,742 INFO L186 Difference]: Start difference. First operand has 80 places, 74 transitions, 163 flow. Second operand 8 states and 607 transitions. [2021-12-17 22:23:15,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 110 transitions, 377 flow [2021-12-17 22:23:15,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 110 transitions, 374 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-12-17 22:23:15,748 INFO L242 Difference]: Finished difference. Result has 90 places, 81 transitions, 236 flow [2021-12-17 22:23:15,748 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=236, PETRI_PLACES=90, PETRI_TRANSITIONS=81} [2021-12-17 22:23:15,749 INFO L334 CegarLoopForPetriNet]: 80 programPoint places, 10 predicate places. [2021-12-17 22:23:15,749 INFO L470 AbstractCegarLoop]: Abstraction has has 90 places, 81 transitions, 236 flow [2021-12-17 22:23:15,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 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) [2021-12-17 22:23:15,750 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:15,750 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] [2021-12-17 22:23:15,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 22:23:15,750 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-17 22:23:15,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:15,751 INFO L85 PathProgramCache]: Analyzing trace with hash 692131209, now seen corresponding path program 1 times [2021-12-17 22:23:15,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:15,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642642834] [2021-12-17 22:23:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:15,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:15,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:23:15,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:15,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642642834] [2021-12-17 22:23:15,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642642834] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:15,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:15,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:23:15,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501204038] [2021-12-17 22:23:15,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:15,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:23:15,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:15,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:23:15,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:23:15,907 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 89 [2021-12-17 22:23:15,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 81 transitions, 236 flow. Second operand has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 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) [2021-12-17 22:23:15,910 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:15,910 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 89 [2021-12-17 22:23:15,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:16,216 INFO L129 PetriNetUnfolder]: 131/725 cut-off events. [2021-12-17 22:23:16,216 INFO L130 PetriNetUnfolder]: For 340/340 co-relation queries the response was YES. [2021-12-17 22:23:16,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1395 conditions, 725 events. 131/725 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5165 event pairs, 20 based on Foata normal form. 5/699 useless extension candidates. Maximal degree in co-relation 1355. Up to 56 conditions per place. [2021-12-17 22:23:16,224 INFO L132 encePairwiseOnDemand]: 81/89 looper letters, 61 selfloop transitions, 33 changer transitions 0/150 dead transitions. [2021-12-17 22:23:16,226 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 150 transitions, 727 flow [2021-12-17 22:23:16,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 22:23:16,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-17 22:23:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1365 transitions. [2021-12-17 22:23:16,230 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8072146658781786 [2021-12-17 22:23:16,230 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1365 transitions. [2021-12-17 22:23:16,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1365 transitions. [2021-12-17 22:23:16,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:16,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1365 transitions. [2021-12-17 22:23:16,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 71.84210526315789) internal successors, (1365), 19 states have internal predecessors, (1365), 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) [2021-12-17 22:23:16,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 89.0) internal successors, (1780), 20 states have internal predecessors, (1780), 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) [2021-12-17 22:23:16,244 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 89.0) internal successors, (1780), 20 states have internal predecessors, (1780), 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) [2021-12-17 22:23:16,244 INFO L186 Difference]: Start difference. First operand has 90 places, 81 transitions, 236 flow. Second operand 19 states and 1365 transitions. [2021-12-17 22:23:16,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 150 transitions, 727 flow [2021-12-17 22:23:16,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 150 transitions, 727 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-17 22:23:16,252 INFO L242 Difference]: Finished difference. Result has 118 places, 104 transitions, 498 flow [2021-12-17 22:23:16,253 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=498, PETRI_PLACES=118, PETRI_TRANSITIONS=104} [2021-12-17 22:23:16,255 INFO L334 CegarLoopForPetriNet]: 80 programPoint places, 38 predicate places. [2021-12-17 22:23:16,255 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 104 transitions, 498 flow [2021-12-17 22:23:16,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 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) [2021-12-17 22:23:16,256 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:16,256 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:23:16,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 22:23:16,257 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-17 22:23:16,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:16,258 INFO L85 PathProgramCache]: Analyzing trace with hash -196327125, now seen corresponding path program 1 times [2021-12-17 22:23:16,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:16,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497102457] [2021-12-17 22:23:16,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:16,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 22:23:16,298 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 22:23:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 22:23:16,318 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 22:23:16,318 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 22:23:16,318 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 5 remaining) [2021-12-17 22:23:16,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-12-17 22:23:16,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2021-12-17 22:23:16,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-12-17 22:23:16,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-12-17 22:23:16,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 22:23:16,320 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-17 22:23:16,320 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-17 22:23:16,320 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-12-17 22:23:16,333 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,333 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,333 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,334 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,334 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,334 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,334 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,334 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,334 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,334 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,335 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,335 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,335 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,335 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,335 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,335 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,336 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,336 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,336 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,336 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,336 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,336 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,336 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,337 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,337 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,337 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,337 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,337 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,337 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,337 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,338 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,338 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,338 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,338 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,338 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,338 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,339 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,339 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,339 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,339 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,339 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,339 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,339 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,340 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,340 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,340 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,340 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,340 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,340 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,341 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,341 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,341 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,341 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,341 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,341 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,342 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,342 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,342 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,342 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,342 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,342 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,342 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,343 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,343 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,343 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,343 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,343 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,343 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,344 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,344 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,344 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,344 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,344 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,344 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,345 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,345 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,345 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,345 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,345 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,345 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,346 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,346 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,346 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,346 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,346 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,346 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,347 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,347 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,347 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,347 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,347 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,347 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,347 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,348 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,348 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,348 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,348 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,348 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,348 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,349 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,349 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,349 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,349 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,349 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,349 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,350 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,350 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,350 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,350 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,350 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,350 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,351 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,351 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,351 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,351 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,351 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,351 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,351 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,352 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,352 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,352 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,352 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,352 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,352 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,353 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,353 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,353 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,353 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,353 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,354 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,354 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,354 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,354 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,355 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,355 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,355 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,355 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,355 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,356 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,356 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,356 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,357 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,357 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,357 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,357 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,357 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,358 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,358 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,358 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,358 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,358 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,359 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,359 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,365 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,366 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,366 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,366 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:16,366 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-17 22:23:16,372 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 22:23:16,375 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 [2021-12-17 22:23:16,378 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-17 22:23:16,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 110 transitions, 262 flow [2021-12-17 22:23:16,392 INFO L129 PetriNetUnfolder]: 5/133 cut-off events. [2021-12-17 22:23:16,392 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-12-17 22:23:16,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 133 events. 5/133 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 193 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 147. Up to 8 conditions per place. [2021-12-17 22:23:16,393 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 110 transitions, 262 flow [2021-12-17 22:23:16,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 81 transitions, 186 flow [2021-12-17 22:23:16,397 INFO L129 PetriNetUnfolder]: 2/45 cut-off events. [2021-12-17 22:23:16,397 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-17 22:23:16,397 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:16,398 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] [2021-12-17 22:23:16,398 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-17 22:23:16,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:16,398 INFO L85 PathProgramCache]: Analyzing trace with hash 980719107, now seen corresponding path program 1 times [2021-12-17 22:23:16,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:16,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573562539] [2021-12-17 22:23:16,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:16,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:16,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:23:16,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:16,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573562539] [2021-12-17 22:23:16,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573562539] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:16,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:16,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 22:23:16,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29119745] [2021-12-17 22:23:16,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:16,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 22:23:16,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:16,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 22:23:16,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 22:23:16,486 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 110 [2021-12-17 22:23:16,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 81 transitions, 186 flow. Second operand has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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) [2021-12-17 22:23:16,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:16,487 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 110 [2021-12-17 22:23:16,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:16,729 INFO L129 PetriNetUnfolder]: 541/1578 cut-off events. [2021-12-17 22:23:16,729 INFO L130 PetriNetUnfolder]: For 504/504 co-relation queries the response was YES. [2021-12-17 22:23:16,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2822 conditions, 1578 events. 541/1578 cut-off events. For 504/504 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11852 event pairs, 184 based on Foata normal form. 274/1742 useless extension candidates. Maximal degree in co-relation 2787. Up to 318 conditions per place. [2021-12-17 22:23:16,750 INFO L132 encePairwiseOnDemand]: 100/110 looper letters, 60 selfloop transitions, 14 changer transitions 0/135 dead transitions. [2021-12-17 22:23:16,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 135 transitions, 520 flow [2021-12-17 22:23:16,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 22:23:16,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-17 22:23:16,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 740 transitions. [2021-12-17 22:23:16,753 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8409090909090909 [2021-12-17 22:23:16,753 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 740 transitions. [2021-12-17 22:23:16,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 740 transitions. [2021-12-17 22:23:16,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:16,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 740 transitions. [2021-12-17 22:23:16,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 92.5) internal successors, (740), 8 states have internal predecessors, (740), 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) [2021-12-17 22:23:16,757 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) [2021-12-17 22:23:16,758 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) [2021-12-17 22:23:16,758 INFO L186 Difference]: Start difference. First operand has 89 places, 81 transitions, 186 flow. Second operand 8 states and 740 transitions. [2021-12-17 22:23:16,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 135 transitions, 520 flow [2021-12-17 22:23:16,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 135 transitions, 501 flow, removed 9 selfloop flow, removed 1 redundant places. [2021-12-17 22:23:16,762 INFO L242 Difference]: Finished difference. Result has 99 places, 91 transitions, 278 flow [2021-12-17 22:23:16,762 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=278, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2021-12-17 22:23:16,763 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 10 predicate places. [2021-12-17 22:23:16,763 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 278 flow [2021-12-17 22:23:16,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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) [2021-12-17 22:23:16,763 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:16,764 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] [2021-12-17 22:23:16,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 22:23:16,764 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-17 22:23:16,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:16,764 INFO L85 PathProgramCache]: Analyzing trace with hash 941136163, now seen corresponding path program 1 times [2021-12-17 22:23:16,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:16,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126823710] [2021-12-17 22:23:16,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:16,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:16,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:23:16,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:16,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126823710] [2021-12-17 22:23:16,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126823710] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:16,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:16,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:23:16,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481725036] [2021-12-17 22:23:16,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:16,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:23:16,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:16,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:23:16,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:23:16,821 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 110 [2021-12-17 22:23:16,822 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 278 flow. Second operand has 7 states, 7 states have (on average 82.57142857142857) internal successors, (578), 7 states have internal predecessors, (578), 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) [2021-12-17 22:23:16,822 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:16,822 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 110 [2021-12-17 22:23:16,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:17,493 INFO L129 PetriNetUnfolder]: 921/3317 cut-off events. [2021-12-17 22:23:17,494 INFO L130 PetriNetUnfolder]: For 2190/2190 co-relation queries the response was YES. [2021-12-17 22:23:17,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7098 conditions, 3317 events. 921/3317 cut-off events. For 2190/2190 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 32109 event pairs, 206 based on Foata normal form. 19/3198 useless extension candidates. Maximal degree in co-relation 7057. Up to 415 conditions per place. [2021-12-17 22:23:17,537 INFO L132 encePairwiseOnDemand]: 101/110 looper letters, 122 selfloop transitions, 44 changer transitions 0/226 dead transitions. [2021-12-17 22:23:17,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 226 transitions, 1261 flow [2021-12-17 22:23:17,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 22:23:17,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-17 22:23:17,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1703 transitions. [2021-12-17 22:23:17,542 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8148325358851675 [2021-12-17 22:23:17,542 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1703 transitions. [2021-12-17 22:23:17,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1703 transitions. [2021-12-17 22:23:17,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:17,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1703 transitions. [2021-12-17 22:23:17,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 89.63157894736842) internal successors, (1703), 19 states have internal predecessors, (1703), 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) [2021-12-17 22:23:17,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 110.0) internal successors, (2200), 20 states have internal predecessors, (2200), 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) [2021-12-17 22:23:17,553 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 110.0) internal successors, (2200), 20 states have internal predecessors, (2200), 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) [2021-12-17 22:23:17,553 INFO L186 Difference]: Start difference. First operand has 99 places, 91 transitions, 278 flow. Second operand 19 states and 1703 transitions. [2021-12-17 22:23:17,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 226 transitions, 1261 flow [2021-12-17 22:23:17,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 226 transitions, 1261 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-17 22:23:17,565 INFO L242 Difference]: Finished difference. Result has 128 places, 123 transitions, 661 flow [2021-12-17 22:23:17,565 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=661, PETRI_PLACES=128, PETRI_TRANSITIONS=123} [2021-12-17 22:23:17,565 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 39 predicate places. [2021-12-17 22:23:17,565 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 123 transitions, 661 flow [2021-12-17 22:23:17,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.57142857142857) internal successors, (578), 7 states have internal predecessors, (578), 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) [2021-12-17 22:23:17,566 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:17,566 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:23:17,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 22:23:17,566 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-17 22:23:17,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:17,567 INFO L85 PathProgramCache]: Analyzing trace with hash 743978515, now seen corresponding path program 1 times [2021-12-17 22:23:17,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:17,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905355949] [2021-12-17 22:23:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:17,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:17,656 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-17 22:23:17,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:17,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905355949] [2021-12-17 22:23:17,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905355949] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:17,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:17,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:23:17,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886140662] [2021-12-17 22:23:17,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:17,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:23:17,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:17,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:23:17,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:23:17,659 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 110 [2021-12-17 22:23:17,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 123 transitions, 661 flow. Second operand has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2021-12-17 22:23:17,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:17,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 110 [2021-12-17 22:23:17,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:18,556 INFO L129 PetriNetUnfolder]: 1144/4030 cut-off events. [2021-12-17 22:23:18,556 INFO L130 PetriNetUnfolder]: For 10836/10842 co-relation queries the response was YES. [2021-12-17 22:23:18,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12133 conditions, 4030 events. 1144/4030 cut-off events. For 10836/10842 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 42083 event pairs, 285 based on Foata normal form. 33/3935 useless extension candidates. Maximal degree in co-relation 12079. Up to 636 conditions per place. [2021-12-17 22:23:18,619 INFO L132 encePairwiseOnDemand]: 101/110 looper letters, 163 selfloop transitions, 86 changer transitions 0/309 dead transitions. [2021-12-17 22:23:18,620 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 309 transitions, 2759 flow [2021-12-17 22:23:18,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 22:23:18,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-17 22:23:18,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1701 transitions. [2021-12-17 22:23:18,624 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8138755980861244 [2021-12-17 22:23:18,625 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1701 transitions. [2021-12-17 22:23:18,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1701 transitions. [2021-12-17 22:23:18,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:18,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1701 transitions. [2021-12-17 22:23:18,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 89.52631578947368) internal successors, (1701), 19 states have internal predecessors, (1701), 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) [2021-12-17 22:23:18,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 110.0) internal successors, (2200), 20 states have internal predecessors, (2200), 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) [2021-12-17 22:23:18,677 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 110.0) internal successors, (2200), 20 states have internal predecessors, (2200), 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) [2021-12-17 22:23:18,677 INFO L186 Difference]: Start difference. First operand has 128 places, 123 transitions, 661 flow. Second operand 19 states and 1701 transitions. [2021-12-17 22:23:18,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 309 transitions, 2759 flow [2021-12-17 22:23:18,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 309 transitions, 2552 flow, removed 83 selfloop flow, removed 3 redundant places. [2021-12-17 22:23:18,740 INFO L242 Difference]: Finished difference. Result has 154 places, 186 transitions, 1550 flow [2021-12-17 22:23:18,741 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1550, PETRI_PLACES=154, PETRI_TRANSITIONS=186} [2021-12-17 22:23:18,742 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 65 predicate places. [2021-12-17 22:23:18,742 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 186 transitions, 1550 flow [2021-12-17 22:23:18,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.71428571428571) internal successors, (579), 7 states have internal predecessors, (579), 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) [2021-12-17 22:23:18,743 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:18,743 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:23:18,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 22:23:18,743 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-17 22:23:18,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:18,744 INFO L85 PathProgramCache]: Analyzing trace with hash 781468305, now seen corresponding path program 1 times [2021-12-17 22:23:18,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:18,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53432476] [2021-12-17 22:23:18,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:18,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:18,821 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:23:18,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:18,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53432476] [2021-12-17 22:23:18,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53432476] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 22:23:18,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85436339] [2021-12-17 22:23:18,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:18,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 22:23:18,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:23:18,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 22:23:18,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 22:23:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:18,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 22:23:18,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 22:23:19,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:23:19,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 22:23:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:23:19,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85436339] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 22:23:19,319 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 22:23:19,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-12-17 22:23:19,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443502896] [2021-12-17 22:23:19,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 22:23:19,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-17 22:23:19,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:19,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-17 22:23:19,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-12-17 22:23:19,323 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 110 [2021-12-17 22:23:19,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 186 transitions, 1550 flow. Second operand has 18 states, 18 states have (on average 82.0) internal successors, (1476), 18 states have internal predecessors, (1476), 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) [2021-12-17 22:23:19,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:19,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 110 [2021-12-17 22:23:19,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:21,219 INFO L129 PetriNetUnfolder]: 1451/5580 cut-off events. [2021-12-17 22:23:21,221 INFO L130 PetriNetUnfolder]: For 24278/24278 co-relation queries the response was YES. [2021-12-17 22:23:21,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17928 conditions, 5580 events. 1451/5580 cut-off events. For 24278/24278 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 63230 event pairs, 209 based on Foata normal form. 10/5396 useless extension candidates. Maximal degree in co-relation 17862. Up to 597 conditions per place. [2021-12-17 22:23:21,309 INFO L132 encePairwiseOnDemand]: 100/110 looper letters, 230 selfloop transitions, 192 changer transitions 0/481 dead transitions. [2021-12-17 22:23:21,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 481 transitions, 5027 flow [2021-12-17 22:23:21,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-12-17 22:23:21,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2021-12-17 22:23:21,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 4913 transitions. [2021-12-17 22:23:21,321 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7835725677830941 [2021-12-17 22:23:21,321 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 4913 transitions. [2021-12-17 22:23:21,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 4913 transitions. [2021-12-17 22:23:21,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:21,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 4913 transitions. [2021-12-17 22:23:21,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 86.19298245614036) internal successors, (4913), 57 states have internal predecessors, (4913), 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) [2021-12-17 22:23:21,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 110.0) internal successors, (6380), 58 states have internal predecessors, (6380), 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) [2021-12-17 22:23:21,349 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 110.0) internal successors, (6380), 58 states have internal predecessors, (6380), 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) [2021-12-17 22:23:21,349 INFO L186 Difference]: Start difference. First operand has 154 places, 186 transitions, 1550 flow. Second operand 57 states and 4913 transitions. [2021-12-17 22:23:21,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 481 transitions, 5027 flow [2021-12-17 22:23:21,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 481 transitions, 4763 flow, removed 132 selfloop flow, removed 0 redundant places. [2021-12-17 22:23:21,497 INFO L242 Difference]: Finished difference. Result has 232 places, 282 transitions, 3258 flow [2021-12-17 22:23:21,498 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=1420, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=3258, PETRI_PLACES=232, PETRI_TRANSITIONS=282} [2021-12-17 22:23:21,499 INFO L334 CegarLoopForPetriNet]: 89 programPoint places, 143 predicate places. [2021-12-17 22:23:21,499 INFO L470 AbstractCegarLoop]: Abstraction has has 232 places, 282 transitions, 3258 flow [2021-12-17 22:23:21,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 82.0) internal successors, (1476), 18 states have internal predecessors, (1476), 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) [2021-12-17 22:23:21,500 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:21,500 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:23:21,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 22:23:21,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 22:23:21,720 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-17 22:23:21,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:21,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1737120457, now seen corresponding path program 1 times [2021-12-17 22:23:21,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:21,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75176036] [2021-12-17 22:23:21,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:21,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 22:23:21,740 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 22:23:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 22:23:21,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 22:23:21,779 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 22:23:21,779 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (5 of 6 remaining) [2021-12-17 22:23:21,779 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-12-17 22:23:21,779 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2021-12-17 22:23:21,780 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2021-12-17 22:23:21,780 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2021-12-17 22:23:21,780 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-12-17 22:23:21,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 22:23:21,781 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-17 22:23:21,781 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-17 22:23:21,781 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-12-17 22:23:21,800 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,800 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,800 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,801 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,801 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,801 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,801 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,801 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,801 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,801 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,802 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,802 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,802 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,802 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,802 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,802 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,802 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,802 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,803 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,803 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,803 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,803 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,803 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,803 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,803 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,805 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,805 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,805 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,806 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,806 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,806 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,806 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,806 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,806 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,807 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,807 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,807 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,807 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,807 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,807 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,808 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,808 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,808 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,808 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,808 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,811 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,811 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,811 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,812 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,812 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,812 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,812 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,812 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,812 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,812 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,812 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,813 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,813 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,813 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,813 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,813 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,813 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,813 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,813 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,813 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,813 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,813 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,813 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,814 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,814 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,814 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,814 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,815 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,815 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,816 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,817 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,817 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,817 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,817 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,817 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,817 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,817 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,818 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,819 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,819 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,819 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,819 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,819 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,819 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,819 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,820 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,820 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,820 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,820 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,820 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,820 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,820 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,820 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,821 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,821 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,821 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,821 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,821 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,821 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,821 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,821 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,822 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,822 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,822 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,823 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,823 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,823 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,823 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,823 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,824 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,824 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,824 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,826 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,826 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,826 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,826 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,826 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,826 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,826 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,827 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,827 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,827 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,827 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,827 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,827 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,827 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,827 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,828 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,828 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,828 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,828 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,828 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,828 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,828 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,829 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,829 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,829 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,829 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,829 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,829 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,829 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,829 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,830 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,830 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,830 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,830 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,830 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,831 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,831 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,831 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,831 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,831 WARN L322 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,833 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,833 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,833 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,833 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,833 WARN L322 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,834 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,834 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,834 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,834 WARN L322 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,834 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,836 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,836 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,836 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,836 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,836 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,836 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,837 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,837 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,837 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,837 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,837 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,838 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,838 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,838 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,839 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,839 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,839 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,839 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:23:21,839 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-17 22:23:21,841 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 22:23:21,841 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 [2021-12-17 22:23:21,841 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-17 22:23:21,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 131 transitions, 326 flow [2021-12-17 22:23:21,852 INFO L129 PetriNetUnfolder]: 6/159 cut-off events. [2021-12-17 22:23:21,853 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-12-17 22:23:21,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 159 events. 6/159 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 227 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 179. Up to 10 conditions per place. [2021-12-17 22:23:21,854 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 131 transitions, 326 flow [2021-12-17 22:23:21,858 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 88 transitions, 211 flow [2021-12-17 22:23:21,860 INFO L129 PetriNetUnfolder]: 1/42 cut-off events. [2021-12-17 22:23:21,860 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-17 22:23:21,861 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:21,861 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] [2021-12-17 22:23:21,861 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-17 22:23:21,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:21,861 INFO L85 PathProgramCache]: Analyzing trace with hash -2005294478, now seen corresponding path program 1 times [2021-12-17 22:23:21,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:21,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948843712] [2021-12-17 22:23:21,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:21,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:21,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:23:21,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:21,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948843712] [2021-12-17 22:23:21,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948843712] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:21,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:21,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 22:23:21,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985055536] [2021-12-17 22:23:21,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:21,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 22:23:21,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:21,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 22:23:21,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 22:23:21,906 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 131 [2021-12-17 22:23:21,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 88 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 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) [2021-12-17 22:23:21,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:21,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 131 [2021-12-17 22:23:21,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:22,682 INFO L129 PetriNetUnfolder]: 2465/5719 cut-off events. [2021-12-17 22:23:22,682 INFO L130 PetriNetUnfolder]: For 2918/2918 co-relation queries the response was YES. [2021-12-17 22:23:22,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10838 conditions, 5719 events. 2465/5719 cut-off events. For 2918/2918 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 50362 event pairs, 734 based on Foata normal form. 1002/6427 useless extension candidates. Maximal degree in co-relation 10802. Up to 1465 conditions per place. [2021-12-17 22:23:22,737 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 78 selfloop transitions, 17 changer transitions 0/160 dead transitions. [2021-12-17 22:23:22,737 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 160 transitions, 677 flow [2021-12-17 22:23:22,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 22:23:22,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-17 22:23:22,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 873 transitions. [2021-12-17 22:23:22,739 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8330152671755725 [2021-12-17 22:23:22,739 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 873 transitions. [2021-12-17 22:23:22,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 873 transitions. [2021-12-17 22:23:22,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:22,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 873 transitions. [2021-12-17 22:23:22,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 109.125) internal successors, (873), 8 states have internal predecessors, (873), 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) [2021-12-17 22:23:22,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 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) [2021-12-17 22:23:22,743 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 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) [2021-12-17 22:23:22,743 INFO L186 Difference]: Start difference. First operand has 98 places, 88 transitions, 211 flow. Second operand 8 states and 873 transitions. [2021-12-17 22:23:22,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 160 transitions, 677 flow [2021-12-17 22:23:22,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 160 transitions, 628 flow, removed 24 selfloop flow, removed 1 redundant places. [2021-12-17 22:23:22,747 INFO L242 Difference]: Finished difference. Result has 108 places, 101 transitions, 320 flow [2021-12-17 22:23:22,747 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=320, PETRI_PLACES=108, PETRI_TRANSITIONS=101} [2021-12-17 22:23:22,748 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 10 predicate places. [2021-12-17 22:23:22,748 INFO L470 AbstractCegarLoop]: Abstraction has has 108 places, 101 transitions, 320 flow [2021-12-17 22:23:22,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 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) [2021-12-17 22:23:22,748 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:22,748 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] [2021-12-17 22:23:22,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 22:23:22,749 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-17 22:23:22,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:22,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1225581279, now seen corresponding path program 1 times [2021-12-17 22:23:22,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:22,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764371111] [2021-12-17 22:23:22,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:22,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:22,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:23:22,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:22,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764371111] [2021-12-17 22:23:22,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764371111] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:22,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:22,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:23:22,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427470182] [2021-12-17 22:23:22,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:22,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:23:22,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:22,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:23:22,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:23:22,794 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 131 [2021-12-17 22:23:22,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 101 transitions, 320 flow. Second operand has 7 states, 7 states have (on average 96.57142857142857) internal successors, (676), 7 states have internal predecessors, (676), 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) [2021-12-17 22:23:22,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:22,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 131 [2021-12-17 22:23:22,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:24,140 INFO L129 PetriNetUnfolder]: 4859/11382 cut-off events. [2021-12-17 22:23:24,140 INFO L130 PetriNetUnfolder]: For 9675/9675 co-relation queries the response was YES. [2021-12-17 22:23:24,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28985 conditions, 11382 events. 4859/11382 cut-off events. For 9675/9675 co-relation queries the response was YES. Maximal size of possible extension queue 750. Compared 116283 event pairs, 1030 based on Foata normal form. 65/11120 useless extension candidates. Maximal degree in co-relation 28943. Up to 2287 conditions per place. [2021-12-17 22:23:24,280 INFO L132 encePairwiseOnDemand]: 121/131 looper letters, 166 selfloop transitions, 54 changer transitions 0/284 dead transitions. [2021-12-17 22:23:24,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 284 transitions, 1669 flow [2021-12-17 22:23:24,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 22:23:24,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-17 22:23:24,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2023 transitions. [2021-12-17 22:23:24,284 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8127762153475291 [2021-12-17 22:23:24,284 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2023 transitions. [2021-12-17 22:23:24,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2023 transitions. [2021-12-17 22:23:24,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:24,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2023 transitions. [2021-12-17 22:23:24,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 106.47368421052632) internal successors, (2023), 19 states have internal predecessors, (2023), 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) [2021-12-17 22:23:24,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 131.0) internal successors, (2620), 20 states have internal predecessors, (2620), 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) [2021-12-17 22:23:24,291 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 131.0) internal successors, (2620), 20 states have internal predecessors, (2620), 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) [2021-12-17 22:23:24,291 INFO L186 Difference]: Start difference. First operand has 108 places, 101 transitions, 320 flow. Second operand 19 states and 2023 transitions. [2021-12-17 22:23:24,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 284 transitions, 1669 flow [2021-12-17 22:23:24,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 284 transitions, 1669 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-17 22:23:24,318 INFO L242 Difference]: Finished difference. Result has 137 places, 140 transitions, 794 flow [2021-12-17 22:23:24,318 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=794, PETRI_PLACES=137, PETRI_TRANSITIONS=140} [2021-12-17 22:23:24,319 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 39 predicate places. [2021-12-17 22:23:24,319 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 140 transitions, 794 flow [2021-12-17 22:23:24,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 96.57142857142857) internal successors, (676), 7 states have internal predecessors, (676), 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) [2021-12-17 22:23:24,320 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:24,320 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:23:24,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 22:23:24,320 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-17 22:23:24,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:24,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1933405436, now seen corresponding path program 1 times [2021-12-17 22:23:24,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:24,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025094830] [2021-12-17 22:23:24,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:24,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-17 22:23:24,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:24,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025094830] [2021-12-17 22:23:24,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025094830] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:24,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:24,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:23:24,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931632490] [2021-12-17 22:23:24,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:24,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:23:24,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:24,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:23:24,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:23:24,397 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 131 [2021-12-17 22:23:24,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 140 transitions, 794 flow. Second operand has 7 states, 7 states have (on average 96.71428571428571) internal successors, (677), 7 states have internal predecessors, (677), 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) [2021-12-17 22:23:24,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:24,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 131 [2021-12-17 22:23:24,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:27,205 INFO L129 PetriNetUnfolder]: 7508/19222 cut-off events. [2021-12-17 22:23:27,206 INFO L130 PetriNetUnfolder]: For 62169/62169 co-relation queries the response was YES. [2021-12-17 22:23:27,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65880 conditions, 19222 events. 7508/19222 cut-off events. For 62169/62169 co-relation queries the response was YES. Maximal size of possible extension queue 1444. Compared 228639 event pairs, 1832 based on Foata normal form. 108/18772 useless extension candidates. Maximal degree in co-relation 65825. Up to 4037 conditions per place. [2021-12-17 22:23:27,507 INFO L132 encePairwiseOnDemand]: 121/131 looper letters, 226 selfloop transitions, 102 changer transitions 0/392 dead transitions. [2021-12-17 22:23:27,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 392 transitions, 3611 flow [2021-12-17 22:23:27,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 22:23:27,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-17 22:23:27,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2021 transitions. [2021-12-17 22:23:27,512 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8119726797910808 [2021-12-17 22:23:27,512 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2021 transitions. [2021-12-17 22:23:27,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2021 transitions. [2021-12-17 22:23:27,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:27,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2021 transitions. [2021-12-17 22:23:27,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 106.36842105263158) internal successors, (2021), 19 states have internal predecessors, (2021), 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) [2021-12-17 22:23:27,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 131.0) internal successors, (2620), 20 states have internal predecessors, (2620), 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) [2021-12-17 22:23:27,534 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 131.0) internal successors, (2620), 20 states have internal predecessors, (2620), 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) [2021-12-17 22:23:27,534 INFO L186 Difference]: Start difference. First operand has 137 places, 140 transitions, 794 flow. Second operand 19 states and 2021 transitions. [2021-12-17 22:23:27,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 392 transitions, 3611 flow [2021-12-17 22:23:27,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 392 transitions, 3286 flow, removed 136 selfloop flow, removed 3 redundant places. [2021-12-17 22:23:27,914 INFO L242 Difference]: Finished difference. Result has 163 places, 213 transitions, 1825 flow [2021-12-17 22:23:27,914 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1825, PETRI_PLACES=163, PETRI_TRANSITIONS=213} [2021-12-17 22:23:27,915 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 65 predicate places. [2021-12-17 22:23:27,915 INFO L470 AbstractCegarLoop]: Abstraction has has 163 places, 213 transitions, 1825 flow [2021-12-17 22:23:27,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 96.71428571428571) internal successors, (677), 7 states have internal predecessors, (677), 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) [2021-12-17 22:23:27,915 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:27,916 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:23:27,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 22:23:27,916 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-17 22:23:27,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:27,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1164470650, now seen corresponding path program 1 times [2021-12-17 22:23:27,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:27,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736828516] [2021-12-17 22:23:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:27,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-17 22:23:27,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:27,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736828516] [2021-12-17 22:23:27,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736828516] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:27,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:27,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 22:23:27,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564774645] [2021-12-17 22:23:27,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:27,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 22:23:27,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:27,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 22:23:27,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-17 22:23:27,985 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2021-12-17 22:23:27,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 213 transitions, 1825 flow. Second operand has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 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) [2021-12-17 22:23:27,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:27,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2021-12-17 22:23:27,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:32,896 INFO L129 PetriNetUnfolder]: 9460/26280 cut-off events. [2021-12-17 22:23:32,896 INFO L130 PetriNetUnfolder]: For 156680/156680 co-relation queries the response was YES. [2021-12-17 22:23:33,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97707 conditions, 26280 events. 9460/26280 cut-off events. For 156680/156680 co-relation queries the response was YES. Maximal size of possible extension queue 1822. Compared 332789 event pairs, 1974 based on Foata normal form. 19/25341 useless extension candidates. Maximal degree in co-relation 97640. Up to 4102 conditions per place. [2021-12-17 22:23:33,277 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 345 selfloop transitions, 204 changer transitions 0/612 dead transitions. [2021-12-17 22:23:33,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 612 transitions, 6450 flow [2021-12-17 22:23:33,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-17 22:23:33,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-12-17 22:23:33,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 4707 transitions. [2021-12-17 22:23:33,284 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7984732824427481 [2021-12-17 22:23:33,284 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 4707 transitions. [2021-12-17 22:23:33,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 4707 transitions. [2021-12-17 22:23:33,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:33,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 4707 transitions. [2021-12-17 22:23:33,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 104.6) internal successors, (4707), 45 states have internal predecessors, (4707), 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) [2021-12-17 22:23:33,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 131.0) internal successors, (6026), 46 states have internal predecessors, (6026), 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) [2021-12-17 22:23:33,302 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 131.0) internal successors, (6026), 46 states have internal predecessors, (6026), 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) [2021-12-17 22:23:33,302 INFO L186 Difference]: Start difference. First operand has 163 places, 213 transitions, 1825 flow. Second operand 45 states and 4707 transitions. [2021-12-17 22:23:33,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 612 transitions, 6450 flow [2021-12-17 22:23:34,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 612 transitions, 6104 flow, removed 173 selfloop flow, removed 0 redundant places. [2021-12-17 22:23:34,199 INFO L242 Difference]: Finished difference. Result has 219 places, 300 transitions, 3326 flow [2021-12-17 22:23:34,200 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=1645, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=3326, PETRI_PLACES=219, PETRI_TRANSITIONS=300} [2021-12-17 22:23:34,200 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 121 predicate places. [2021-12-17 22:23:34,200 INFO L470 AbstractCegarLoop]: Abstraction has has 219 places, 300 transitions, 3326 flow [2021-12-17 22:23:34,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 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) [2021-12-17 22:23:34,201 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:34,201 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:23:34,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 22:23:34,202 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-17 22:23:34,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:34,202 INFO L85 PathProgramCache]: Analyzing trace with hash -147506822, now seen corresponding path program 2 times [2021-12-17 22:23:34,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:34,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311148388] [2021-12-17 22:23:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:34,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-17 22:23:34,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:34,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311148388] [2021-12-17 22:23:34,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311148388] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:34,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:34,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 22:23:34,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001441921] [2021-12-17 22:23:34,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:34,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 22:23:34,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:34,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 22:23:34,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-17 22:23:34,274 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2021-12-17 22:23:34,275 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 300 transitions, 3326 flow. Second operand has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 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) [2021-12-17 22:23:34,275 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:34,275 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2021-12-17 22:23:34,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:39,281 INFO L129 PetriNetUnfolder]: 9851/26506 cut-off events. [2021-12-17 22:23:39,282 INFO L130 PetriNetUnfolder]: For 243707/243707 co-relation queries the response was YES. [2021-12-17 22:23:39,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113713 conditions, 26506 events. 9851/26506 cut-off events. For 243707/243707 co-relation queries the response was YES. Maximal size of possible extension queue 1971. Compared 336226 event pairs, 1504 based on Foata normal form. 19/25788 useless extension candidates. Maximal degree in co-relation 113632. Up to 3803 conditions per place. [2021-12-17 22:23:39,709 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 366 selfloop transitions, 240 changer transitions 0/669 dead transitions. [2021-12-17 22:23:39,709 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 669 transitions, 8225 flow [2021-12-17 22:23:39,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-17 22:23:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-12-17 22:23:39,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 4707 transitions. [2021-12-17 22:23:39,716 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7984732824427481 [2021-12-17 22:23:39,716 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 4707 transitions. [2021-12-17 22:23:39,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 4707 transitions. [2021-12-17 22:23:39,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:39,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 4707 transitions. [2021-12-17 22:23:39,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 104.6) internal successors, (4707), 45 states have internal predecessors, (4707), 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) [2021-12-17 22:23:39,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 131.0) internal successors, (6026), 46 states have internal predecessors, (6026), 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) [2021-12-17 22:23:39,729 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 131.0) internal successors, (6026), 46 states have internal predecessors, (6026), 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) [2021-12-17 22:23:39,729 INFO L186 Difference]: Start difference. First operand has 219 places, 300 transitions, 3326 flow. Second operand 45 states and 4707 transitions. [2021-12-17 22:23:39,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 669 transitions, 8225 flow [2021-12-17 22:23:41,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 669 transitions, 7737 flow, removed 179 selfloop flow, removed 12 redundant places. [2021-12-17 22:23:41,800 INFO L242 Difference]: Finished difference. Result has 263 places, 355 transitions, 4479 flow [2021-12-17 22:23:41,801 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=2956, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=4479, PETRI_PLACES=263, PETRI_TRANSITIONS=355} [2021-12-17 22:23:41,801 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 165 predicate places. [2021-12-17 22:23:41,801 INFO L470 AbstractCegarLoop]: Abstraction has has 263 places, 355 transitions, 4479 flow [2021-12-17 22:23:41,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 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) [2021-12-17 22:23:41,802 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:41,802 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:23:41,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 22:23:41,802 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-17 22:23:41,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:41,802 INFO L85 PathProgramCache]: Analyzing trace with hash -701023176, now seen corresponding path program 1 times [2021-12-17 22:23:41,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:41,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24459693] [2021-12-17 22:23:41,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:41,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:41,866 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-17 22:23:41,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:41,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24459693] [2021-12-17 22:23:41,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24459693] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:41,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:41,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:23:41,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792527096] [2021-12-17 22:23:41,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:41,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:23:41,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:41,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:23:41,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:23:41,869 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 131 [2021-12-17 22:23:41,870 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 355 transitions, 4479 flow. Second operand has 7 states, 7 states have (on average 96.85714285714286) internal successors, (678), 7 states have internal predecessors, (678), 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) [2021-12-17 22:23:41,870 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:41,870 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 131 [2021-12-17 22:23:41,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:23:48,399 INFO L129 PetriNetUnfolder]: 12295/32683 cut-off events. [2021-12-17 22:23:48,399 INFO L130 PetriNetUnfolder]: For 520860/520860 co-relation queries the response was YES. [2021-12-17 22:23:48,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178826 conditions, 32683 events. 12295/32683 cut-off events. For 520860/520860 co-relation queries the response was YES. Maximal size of possible extension queue 2725. Compared 435839 event pairs, 2575 based on Foata normal form. 201/32521 useless extension candidates. Maximal degree in co-relation 178733. Up to 5567 conditions per place. [2021-12-17 22:23:49,482 INFO L132 encePairwiseOnDemand]: 121/131 looper letters, 673 selfloop transitions, 317 changer transitions 0/1054 dead transitions. [2021-12-17 22:23:49,482 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 1054 transitions, 17846 flow [2021-12-17 22:23:49,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-17 22:23:49,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-17 22:23:49,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2010 transitions. [2021-12-17 22:23:49,485 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8075532342306148 [2021-12-17 22:23:49,486 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2010 transitions. [2021-12-17 22:23:49,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2010 transitions. [2021-12-17 22:23:49,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:23:49,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2010 transitions. [2021-12-17 22:23:49,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 105.78947368421052) internal successors, (2010), 19 states have internal predecessors, (2010), 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) [2021-12-17 22:23:49,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 131.0) internal successors, (2620), 20 states have internal predecessors, (2620), 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) [2021-12-17 22:23:49,492 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 131.0) internal successors, (2620), 20 states have internal predecessors, (2620), 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) [2021-12-17 22:23:49,492 INFO L186 Difference]: Start difference. First operand has 263 places, 355 transitions, 4479 flow. Second operand 19 states and 2010 transitions. [2021-12-17 22:23:49,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 1054 transitions, 17846 flow [2021-12-17 22:23:55,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 1054 transitions, 16524 flow, removed 489 selfloop flow, removed 18 redundant places. [2021-12-17 22:23:55,464 INFO L242 Difference]: Finished difference. Result has 274 places, 605 transitions, 9755 flow [2021-12-17 22:23:55,464 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=4089, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=9755, PETRI_PLACES=274, PETRI_TRANSITIONS=605} [2021-12-17 22:23:55,465 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 176 predicate places. [2021-12-17 22:23:55,465 INFO L470 AbstractCegarLoop]: Abstraction has has 274 places, 605 transitions, 9755 flow [2021-12-17 22:23:55,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 96.85714285714286) internal successors, (678), 7 states have internal predecessors, (678), 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) [2021-12-17 22:23:55,465 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:23:55,465 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:23:55,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 22:23:55,466 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-17 22:23:55,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:23:55,466 INFO L85 PathProgramCache]: Analyzing trace with hash 923354998, now seen corresponding path program 1 times [2021-12-17 22:23:55,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:23:55,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743832741] [2021-12-17 22:23:55,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:23:55,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:23:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:23:55,540 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-17 22:23:55,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:23:55,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743832741] [2021-12-17 22:23:55,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743832741] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:23:55,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:23:55,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 22:23:55,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138519591] [2021-12-17 22:23:55,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:23:55,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 22:23:55,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:23:55,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 22:23:55,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-17 22:23:55,543 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2021-12-17 22:23:55,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 605 transitions, 9755 flow. Second operand has 9 states, 9 states have (on average 95.77777777777777) internal successors, (862), 9 states have internal predecessors, (862), 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) [2021-12-17 22:23:55,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:23:55,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2021-12-17 22:23:55,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:24:06,500 INFO L129 PetriNetUnfolder]: 15039/41534 cut-off events. [2021-12-17 22:24:06,501 INFO L130 PetriNetUnfolder]: For 813899/813899 co-relation queries the response was YES. [2021-12-17 22:24:07,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 233604 conditions, 41534 events. 15039/41534 cut-off events. For 813899/813899 co-relation queries the response was YES. Maximal size of possible extension queue 3267. Compared 578278 event pairs, 2122 based on Foata normal form. 43/40951 useless extension candidates. Maximal degree in co-relation 233500. Up to 6142 conditions per place. [2021-12-17 22:24:07,689 INFO L132 encePairwiseOnDemand]: 120/131 looper letters, 637 selfloop transitions, 604 changer transitions 0/1304 dead transitions. [2021-12-17 22:24:07,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 1304 transitions, 23635 flow [2021-12-17 22:24:07,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-17 22:24:07,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-12-17 22:24:07,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 4697 transitions. [2021-12-17 22:24:07,692 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.796776929601357 [2021-12-17 22:24:07,692 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 4697 transitions. [2021-12-17 22:24:07,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 4697 transitions. [2021-12-17 22:24:07,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:24:07,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 4697 transitions. [2021-12-17 22:24:07,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 104.37777777777778) internal successors, (4697), 45 states have internal predecessors, (4697), 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) [2021-12-17 22:24:07,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 131.0) internal successors, (6026), 46 states have internal predecessors, (6026), 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) [2021-12-17 22:24:07,701 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 131.0) internal successors, (6026), 46 states have internal predecessors, (6026), 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) [2021-12-17 22:24:07,702 INFO L186 Difference]: Start difference. First operand has 274 places, 605 transitions, 9755 flow. Second operand 45 states and 4697 transitions. [2021-12-17 22:24:07,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 1304 transitions, 23635 flow [2021-12-17 22:24:20,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1304 transitions, 22357 flow, removed 639 selfloop flow, removed 0 redundant places. [2021-12-17 22:24:20,726 INFO L242 Difference]: Finished difference. Result has 330 places, 832 transitions, 15141 flow [2021-12-17 22:24:20,727 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=8827, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=605, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=385, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=15141, PETRI_PLACES=330, PETRI_TRANSITIONS=832} [2021-12-17 22:24:20,728 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 232 predicate places. [2021-12-17 22:24:20,728 INFO L470 AbstractCegarLoop]: Abstraction has has 330 places, 832 transitions, 15141 flow [2021-12-17 22:24:20,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 95.77777777777777) internal successors, (862), 9 states have internal predecessors, (862), 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) [2021-12-17 22:24:20,728 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:24:20,729 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:24:20,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 22:24:20,729 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-17 22:24:20,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:24:20,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1553185722, now seen corresponding path program 2 times [2021-12-17 22:24:20,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:24:20,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669458887] [2021-12-17 22:24:20,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:24:20,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:24:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:24:20,796 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-17 22:24:20,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:24:20,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669458887] [2021-12-17 22:24:20,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669458887] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:24:20,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:24:20,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 22:24:20,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975828924] [2021-12-17 22:24:20,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:24:20,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 22:24:20,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:24:20,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 22:24:20,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-17 22:24:20,799 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2021-12-17 22:24:20,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 832 transitions, 15141 flow. Second operand has 9 states, 9 states have (on average 95.77777777777777) internal successors, (862), 9 states have internal predecessors, (862), 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) [2021-12-17 22:24:20,799 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:24:20,799 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2021-12-17 22:24:20,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand