./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c --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/weaver/popl20-bad-ring-nondet.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5fedede1a0cf545b0a275694256164e3eb4f49b22c80042adac647157728b27d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:05:00,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:05:00,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:05:00,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:05:00,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:05:00,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:05:00,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:05:00,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:05:00,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:05:00,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:05:00,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:05:00,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:05:00,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:05:00,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:05:00,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:05:00,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:05:00,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:05:00,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:05:00,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:05:00,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:05:00,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:05:00,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:05:00,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:05:00,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:05:00,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:05:00,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:05:00,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:05:00,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:05:00,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:05:00,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:05:00,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:05:00,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:05:00,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:05:00,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:05:00,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:05:00,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:05:00,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:05:00,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:05:00,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:05:00,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:05:00,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:05:00,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 03:05:00,809 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:05:00,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:05:00,810 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:05:00,811 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:05:00,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:05:00,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:05:00,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:05:00,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:05:00,812 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:05:00,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:05:00,813 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 03:05:00,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:05:00,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 03:05:00,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:05:00,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:05:00,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:05:00,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:05:00,815 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 03:05:00,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:05:00,815 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:05:00,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:05:00,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:05:00,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:05:00,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:05:00,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:05:00,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:05:00,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:05:00,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:05:00,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:05:00,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:05:00,817 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:05:00,817 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:05:00,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:05:00,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:05:00,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fedede1a0cf545b0a275694256164e3eb4f49b22c80042adac647157728b27d [2021-12-16 03:05:00,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:05:01,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:05:01,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:05:01,015 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:05:01,016 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:05:01,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c [2021-12-16 03:05:01,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c335fa23a/2cbee364c35d4ac7b995e5c4d37ff836/FLAGa66a91f53 [2021-12-16 03:05:01,384 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:05:01,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c [2021-12-16 03:05:01,395 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c335fa23a/2cbee364c35d4ac7b995e5c4d37ff836/FLAGa66a91f53 [2021-12-16 03:05:01,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c335fa23a/2cbee364c35d4ac7b995e5c4d37ff836 [2021-12-16 03:05:01,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:05:01,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:05:01,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:05:01,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:05:01,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:05:01,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:05:01" (1/1) ... [2021-12-16 03:05:01,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e2f4b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:01, skipping insertion in model container [2021-12-16 03:05:01,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:05:01" (1/1) ... [2021-12-16 03:05:01,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:05:01,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:05:02,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c[4085,4098] [2021-12-16 03:05:02,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:05:02,112 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:05:02,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c[4085,4098] [2021-12-16 03:05:02,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:05:02,197 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:05:02,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:02 WrapperNode [2021-12-16 03:05:02,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:05:02,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:05:02,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:05:02,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:05:02,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:02" (1/1) ... [2021-12-16 03:05:02,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:02" (1/1) ... [2021-12-16 03:05:02,287 INFO L137 Inliner]: procedures = 25, calls = 63, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 317 [2021-12-16 03:05:02,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:05:02,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:05:02,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:05:02,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:05:02,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:02" (1/1) ... [2021-12-16 03:05:02,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:02" (1/1) ... [2021-12-16 03:05:02,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:02" (1/1) ... [2021-12-16 03:05:02,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:02" (1/1) ... [2021-12-16 03:05:02,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:02" (1/1) ... [2021-12-16 03:05:02,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:02" (1/1) ... [2021-12-16 03:05:02,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:02" (1/1) ... [2021-12-16 03:05:02,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:05:02,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:05:02,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:05:02,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:05:02,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:02" (1/1) ... [2021-12-16 03:05:02,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:05:02,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:05:02,392 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) [2021-12-16 03:05:02,471 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 [2021-12-16 03:05:02,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:05:02,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:05:02,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:05:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:05:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-16 03:05:02,489 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-16 03:05:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-16 03:05:02,489 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-16 03:05:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-16 03:05:02,489 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-16 03:05:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:05:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-16 03:05:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-16 03:05:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:05:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:05:02,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:05:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:05:02,491 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-16 03:05:02,554 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:05:02,555 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:05:02,828 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:05:02,941 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:05:02,941 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-16 03:05:02,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:05:02 BoogieIcfgContainer [2021-12-16 03:05:02,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:05:02,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:05:02,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:05:02,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:05:02,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:05:01" (1/3) ... [2021-12-16 03:05:02,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8117a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:05:02, skipping insertion in model container [2021-12-16 03:05:02,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:05:02" (2/3) ... [2021-12-16 03:05:02,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8117a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:05:02, skipping insertion in model container [2021-12-16 03:05:02,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:05:02" (3/3) ... [2021-12-16 03:05:02,951 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-ring-nondet.wvr.c [2021-12-16 03:05:02,955 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-16 03:05:02,955 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:05:02,955 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:05:02,956 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-16 03:05:02,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:02,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,000 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,001 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,002 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,002 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,002 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,002 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,002 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,002 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,003 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,003 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,003 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,003 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,003 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,004 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,004 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,004 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,004 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,004 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,005 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,005 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,005 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,005 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,006 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,006 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,006 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,007 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,007 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,007 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,007 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,007 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,007 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,010 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,010 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,011 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,012 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,018 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,019 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,019 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,019 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,019 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,019 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,019 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,020 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,020 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,020 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,020 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,020 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,020 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,024 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,024 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,024 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,024 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,024 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,031 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,034 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,038 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,038 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,038 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,038 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,038 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,038 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,039 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,039 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,039 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,039 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,039 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,039 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,040 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,040 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,040 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,040 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,040 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,040 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,041 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,041 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,041 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,041 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:05:03,043 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-12-16 03:05:03,079 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:05:03,085 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 [2021-12-16 03:05:03,085 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-16 03:05:03,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 264 places, 279 transitions, 582 flow [2021-12-16 03:05:03,203 INFO L129 PetriNetUnfolder]: 25/276 cut-off events. [2021-12-16 03:05:03,204 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-16 03:05:03,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 276 events. 25/276 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 201 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 236. Up to 4 conditions per place. [2021-12-16 03:05:03,208 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 279 transitions, 582 flow [2021-12-16 03:05:03,215 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 250 places, 265 transitions, 548 flow [2021-12-16 03:05:03,256 INFO L129 PetriNetUnfolder]: 25/264 cut-off events. [2021-12-16 03:05:03,257 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-16 03:05:03,257 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:03,258 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:03,261 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:03,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:03,264 INFO L85 PathProgramCache]: Analyzing trace with hash 457812310, now seen corresponding path program 1 times [2021-12-16 03:05:03,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:03,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249766847] [2021-12-16 03:05:03,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:03,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:05:03,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:03,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249766847] [2021-12-16 03:05:03,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249766847] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:05:03,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:05:03,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 03:05:03,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239165912] [2021-12-16 03:05:03,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:05:03,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 03:05:03,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:03,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 03:05:03,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 03:05:03,514 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 279 [2021-12-16 03:05:03,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 265 transitions, 548 flow. Second operand has 2 states, 2 states have (on average 253.5) internal successors, (507), 2 states have internal predecessors, (507), 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) [2021-12-16 03:05:03,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:03,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 279 [2021-12-16 03:05:03,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:03,620 INFO L129 PetriNetUnfolder]: 138/578 cut-off events. [2021-12-16 03:05:03,620 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2021-12-16 03:05:03,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 578 events. 138/578 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2010 event pairs, 55 based on Foata normal form. 106/615 useless extension candidates. Maximal degree in co-relation 561. Up to 180 conditions per place. [2021-12-16 03:05:03,626 INFO L132 encePairwiseOnDemand]: 262/279 looper letters, 13 selfloop transitions, 0 changer transitions 8/248 dead transitions. [2021-12-16 03:05:03,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 248 transitions, 540 flow [2021-12-16 03:05:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 03:05:03,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-16 03:05:03,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 526 transitions. [2021-12-16 03:05:03,636 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.942652329749104 [2021-12-16 03:05:03,636 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 526 transitions. [2021-12-16 03:05:03,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 526 transitions. [2021-12-16 03:05:03,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:03,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 526 transitions. [2021-12-16 03:05:03,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 263.0) internal successors, (526), 2 states have internal predecessors, (526), 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) [2021-12-16 03:05:03,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 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) [2021-12-16 03:05:03,647 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 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) [2021-12-16 03:05:03,648 INFO L186 Difference]: Start difference. First operand has 250 places, 265 transitions, 548 flow. Second operand 2 states and 526 transitions. [2021-12-16 03:05:03,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 248 transitions, 540 flow [2021-12-16 03:05:03,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 248 transitions, 528 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-12-16 03:05:03,655 INFO L242 Difference]: Finished difference. Result has 245 places, 240 transitions, 486 flow [2021-12-16 03:05:03,657 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=486, PETRI_PLACES=245, PETRI_TRANSITIONS=240} [2021-12-16 03:05:03,675 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, -5 predicate places. [2021-12-16 03:05:03,675 INFO L470 AbstractCegarLoop]: Abstraction has has 245 places, 240 transitions, 486 flow [2021-12-16 03:05:03,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 253.5) internal successors, (507), 2 states have internal predecessors, (507), 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) [2021-12-16 03:05:03,676 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:03,676 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:03,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:05:03,677 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:03,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:03,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1216024931, now seen corresponding path program 1 times [2021-12-16 03:05:03,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:03,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822577715] [2021-12-16 03:05:03,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:03,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:03,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:05:03,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:03,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822577715] [2021-12-16 03:05:03,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822577715] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:05:03,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:05:03,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:05:03,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461936795] [2021-12-16 03:05:03,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:05:03,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:05:03,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:03,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:05:03,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:05:03,972 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 279 [2021-12-16 03:05:03,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 240 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 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) [2021-12-16 03:05:03,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:03,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 279 [2021-12-16 03:05:03,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:04,070 INFO L129 PetriNetUnfolder]: 128/521 cut-off events. [2021-12-16 03:05:04,070 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-12-16 03:05:04,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 521 events. 128/521 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1679 event pairs, 21 based on Foata normal form. 8/484 useless extension candidates. Maximal degree in co-relation 716. Up to 133 conditions per place. [2021-12-16 03:05:04,076 INFO L132 encePairwiseOnDemand]: 274/279 looper letters, 23 selfloop transitions, 4 changer transitions 0/247 dead transitions. [2021-12-16 03:05:04,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 247 transitions, 556 flow [2021-12-16 03:05:04,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:05:04,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-16 03:05:04,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2021-12-16 03:05:04,096 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8972520908004779 [2021-12-16 03:05:04,096 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2021-12-16 03:05:04,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2021-12-16 03:05:04,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:04,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2021-12-16 03:05:04,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2021-12-16 03:05:04,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 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) [2021-12-16 03:05:04,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 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) [2021-12-16 03:05:04,102 INFO L186 Difference]: Start difference. First operand has 245 places, 240 transitions, 486 flow. Second operand 3 states and 751 transitions. [2021-12-16 03:05:04,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 247 transitions, 556 flow [2021-12-16 03:05:04,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 247 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-16 03:05:04,109 INFO L242 Difference]: Finished difference. Result has 240 places, 241 transitions, 504 flow [2021-12-16 03:05:04,110 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=240, PETRI_TRANSITIONS=241} [2021-12-16 03:05:04,110 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, -10 predicate places. [2021-12-16 03:05:04,110 INFO L470 AbstractCegarLoop]: Abstraction has has 240 places, 241 transitions, 504 flow [2021-12-16 03:05:04,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 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) [2021-12-16 03:05:04,111 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:04,111 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:04,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:05:04,112 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:04,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:04,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2020456479, now seen corresponding path program 2 times [2021-12-16 03:05:04,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:04,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722488985] [2021-12-16 03:05:04,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:04,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:04,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:05:04,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:04,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722488985] [2021-12-16 03:05:04,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722488985] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:05:04,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:05:04,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 03:05:04,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045274581] [2021-12-16 03:05:04,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:05:04,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:05:04,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:04,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:05:04,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:05:04,301 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 279 [2021-12-16 03:05:04,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 241 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 215.16666666666666) internal successors, (1291), 6 states have internal predecessors, (1291), 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) [2021-12-16 03:05:04,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:04,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 279 [2021-12-16 03:05:04,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:04,529 INFO L129 PetriNetUnfolder]: 150/749 cut-off events. [2021-12-16 03:05:04,529 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2021-12-16 03:05:04,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 749 events. 150/749 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2781 event pairs, 69 based on Foata normal form. 11/716 useless extension candidates. Maximal degree in co-relation 1116. Up to 220 conditions per place. [2021-12-16 03:05:04,532 INFO L132 encePairwiseOnDemand]: 268/279 looper letters, 49 selfloop transitions, 8 changer transitions 31/276 dead transitions. [2021-12-16 03:05:04,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 276 transitions, 753 flow [2021-12-16 03:05:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 03:05:04,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-16 03:05:04,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1970 transitions. [2021-12-16 03:05:04,536 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7845479888490641 [2021-12-16 03:05:04,536 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1970 transitions. [2021-12-16 03:05:04,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1970 transitions. [2021-12-16 03:05:04,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:04,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1970 transitions. [2021-12-16 03:05:04,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 218.88888888888889) internal successors, (1970), 9 states have internal predecessors, (1970), 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) [2021-12-16 03:05:04,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 279.0) internal successors, (2790), 10 states have internal predecessors, (2790), 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) [2021-12-16 03:05:04,544 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 279.0) internal successors, (2790), 10 states have internal predecessors, (2790), 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) [2021-12-16 03:05:04,544 INFO L186 Difference]: Start difference. First operand has 240 places, 241 transitions, 504 flow. Second operand 9 states and 1970 transitions. [2021-12-16 03:05:04,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 276 transitions, 753 flow [2021-12-16 03:05:04,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 276 transitions, 749 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-16 03:05:04,549 INFO L242 Difference]: Finished difference. Result has 249 places, 242 transitions, 530 flow [2021-12-16 03:05:04,549 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=530, PETRI_PLACES=249, PETRI_TRANSITIONS=242} [2021-12-16 03:05:04,551 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, -1 predicate places. [2021-12-16 03:05:04,551 INFO L470 AbstractCegarLoop]: Abstraction has has 249 places, 242 transitions, 530 flow [2021-12-16 03:05:04,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.16666666666666) internal successors, (1291), 6 states have internal predecessors, (1291), 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) [2021-12-16 03:05:04,552 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:04,552 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:04,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:05:04,553 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:04,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:04,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1682521090, now seen corresponding path program 1 times [2021-12-16 03:05:04,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:04,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227432588] [2021-12-16 03:05:04,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:04,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:04,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:05:04,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:04,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227432588] [2021-12-16 03:05:04,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227432588] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:05:04,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:05:04,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 03:05:04,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924373955] [2021-12-16 03:05:04,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:05:04,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:05:04,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:04,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:05:04,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:05:04,695 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 279 [2021-12-16 03:05:04,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 242 transitions, 530 flow. Second operand has 6 states, 6 states have (on average 216.83333333333334) internal successors, (1301), 6 states have internal predecessors, (1301), 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) [2021-12-16 03:05:04,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:04,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 279 [2021-12-16 03:05:04,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:04,899 INFO L129 PetriNetUnfolder]: 160/719 cut-off events. [2021-12-16 03:05:04,900 INFO L130 PetriNetUnfolder]: For 95/95 co-relation queries the response was YES. [2021-12-16 03:05:04,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 719 events. 160/719 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2585 event pairs, 60 based on Foata normal form. 7/653 useless extension candidates. Maximal degree in co-relation 1135. Up to 200 conditions per place. [2021-12-16 03:05:04,903 INFO L132 encePairwiseOnDemand]: 269/279 looper letters, 49 selfloop transitions, 8 changer transitions 21/267 dead transitions. [2021-12-16 03:05:04,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 267 transitions, 744 flow [2021-12-16 03:05:04,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 03:05:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-16 03:05:04,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1967 transitions. [2021-12-16 03:05:04,907 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7833532457188371 [2021-12-16 03:05:04,907 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1967 transitions. [2021-12-16 03:05:04,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1967 transitions. [2021-12-16 03:05:04,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:04,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1967 transitions. [2021-12-16 03:05:04,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 218.55555555555554) internal successors, (1967), 9 states have internal predecessors, (1967), 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) [2021-12-16 03:05:04,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 279.0) internal successors, (2790), 10 states have internal predecessors, (2790), 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) [2021-12-16 03:05:04,915 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 279.0) internal successors, (2790), 10 states have internal predecessors, (2790), 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) [2021-12-16 03:05:04,915 INFO L186 Difference]: Start difference. First operand has 249 places, 242 transitions, 530 flow. Second operand 9 states and 1967 transitions. [2021-12-16 03:05:04,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 267 transitions, 744 flow [2021-12-16 03:05:04,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 267 transitions, 730 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-12-16 03:05:04,919 INFO L242 Difference]: Finished difference. Result has 252 places, 243 transitions, 544 flow [2021-12-16 03:05:04,920 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=544, PETRI_PLACES=252, PETRI_TRANSITIONS=243} [2021-12-16 03:05:04,920 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, 2 predicate places. [2021-12-16 03:05:04,921 INFO L470 AbstractCegarLoop]: Abstraction has has 252 places, 243 transitions, 544 flow [2021-12-16 03:05:04,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 216.83333333333334) internal successors, (1301), 6 states have internal predecessors, (1301), 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) [2021-12-16 03:05:04,921 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:04,922 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:04,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 03:05:04,922 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:04,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:04,922 INFO L85 PathProgramCache]: Analyzing trace with hash -2126435691, now seen corresponding path program 1 times [2021-12-16 03:05:04,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:04,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399056207] [2021-12-16 03:05:04,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:04,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:04,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 03:05:04,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:04,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399056207] [2021-12-16 03:05:04,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399056207] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:05:04,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:05:04,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:05:04,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640529137] [2021-12-16 03:05:04,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:05:04,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:05:04,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:04,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:05:04,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:05:04,999 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 279 [2021-12-16 03:05:05,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 243 transitions, 544 flow. Second operand has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 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) [2021-12-16 03:05:05,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:05,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 279 [2021-12-16 03:05:05,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:05,186 INFO L129 PetriNetUnfolder]: 233/1019 cut-off events. [2021-12-16 03:05:05,186 INFO L130 PetriNetUnfolder]: For 167/167 co-relation queries the response was YES. [2021-12-16 03:05:05,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1590 conditions, 1019 events. 233/1019 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 5171 event pairs, 61 based on Foata normal form. 1/889 useless extension candidates. Maximal degree in co-relation 1581. Up to 202 conditions per place. [2021-12-16 03:05:05,192 INFO L132 encePairwiseOnDemand]: 274/279 looper letters, 55 selfloop transitions, 2 changer transitions 7/259 dead transitions. [2021-12-16 03:05:05,192 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 259 transitions, 721 flow [2021-12-16 03:05:05,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:05:05,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:05:05,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1093 transitions. [2021-12-16 03:05:05,194 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7835125448028674 [2021-12-16 03:05:05,194 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1093 transitions. [2021-12-16 03:05:05,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1093 transitions. [2021-12-16 03:05:05,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:05,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1093 transitions. [2021-12-16 03:05:05,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 218.6) internal successors, (1093), 5 states have internal predecessors, (1093), 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) [2021-12-16 03:05:05,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 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) [2021-12-16 03:05:05,199 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 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) [2021-12-16 03:05:05,199 INFO L186 Difference]: Start difference. First operand has 252 places, 243 transitions, 544 flow. Second operand 5 states and 1093 transitions. [2021-12-16 03:05:05,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 259 transitions, 721 flow [2021-12-16 03:05:05,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 259 transitions, 701 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-12-16 03:05:05,204 INFO L242 Difference]: Finished difference. Result has 251 places, 244 transitions, 542 flow [2021-12-16 03:05:05,204 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=542, PETRI_PLACES=251, PETRI_TRANSITIONS=244} [2021-12-16 03:05:05,205 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, 1 predicate places. [2021-12-16 03:05:05,205 INFO L470 AbstractCegarLoop]: Abstraction has has 251 places, 244 transitions, 542 flow [2021-12-16 03:05:05,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 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) [2021-12-16 03:05:05,205 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:05,206 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:05,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 03:05:05,206 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:05,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:05,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1258287882, now seen corresponding path program 1 times [2021-12-16 03:05:05,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:05,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210877344] [2021-12-16 03:05:05,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:05,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 03:05:05,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:05,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210877344] [2021-12-16 03:05:05,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210877344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:05:05,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:05:05,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:05:05,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119196329] [2021-12-16 03:05:05,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:05:05,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:05:05,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:05,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:05:05,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:05:05,252 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 279 [2021-12-16 03:05:05,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 244 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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) [2021-12-16 03:05:05,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:05,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 279 [2021-12-16 03:05:05,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:05,508 INFO L129 PetriNetUnfolder]: 346/1354 cut-off events. [2021-12-16 03:05:05,509 INFO L130 PetriNetUnfolder]: For 213/213 co-relation queries the response was YES. [2021-12-16 03:05:05,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2196 conditions, 1354 events. 346/1354 cut-off events. For 213/213 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 7499 event pairs, 140 based on Foata normal form. 0/1191 useless extension candidates. Maximal degree in co-relation 2185. Up to 341 conditions per place. [2021-12-16 03:05:05,517 INFO L132 encePairwiseOnDemand]: 276/279 looper letters, 27 selfloop transitions, 2 changer transitions 0/252 dead transitions. [2021-12-16 03:05:05,517 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 252 transitions, 626 flow [2021-12-16 03:05:05,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:05:05,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-16 03:05:05,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2021-12-16 03:05:05,520 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.899641577060932 [2021-12-16 03:05:05,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2021-12-16 03:05:05,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2021-12-16 03:05:05,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:05,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2021-12-16 03:05:05,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 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) [2021-12-16 03:05:05,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 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) [2021-12-16 03:05:05,523 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 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) [2021-12-16 03:05:05,523 INFO L186 Difference]: Start difference. First operand has 251 places, 244 transitions, 542 flow. Second operand 3 states and 753 transitions. [2021-12-16 03:05:05,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 252 transitions, 626 flow [2021-12-16 03:05:05,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 252 transitions, 620 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-12-16 03:05:05,529 INFO L242 Difference]: Finished difference. Result has 250 places, 245 transitions, 550 flow [2021-12-16 03:05:05,529 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=250, PETRI_TRANSITIONS=245} [2021-12-16 03:05:05,531 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, 0 predicate places. [2021-12-16 03:05:05,532 INFO L470 AbstractCegarLoop]: Abstraction has has 250 places, 245 transitions, 550 flow [2021-12-16 03:05:05,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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) [2021-12-16 03:05:05,532 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:05,533 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:05,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 03:05:05,534 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:05,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:05,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1079501668, now seen corresponding path program 1 times [2021-12-16 03:05:05,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:05,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779486346] [2021-12-16 03:05:05,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:05,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:05,610 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 03:05:05,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:05,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779486346] [2021-12-16 03:05:05,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779486346] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:05:05,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970215862] [2021-12-16 03:05:05,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:05,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:05:05,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:05:05,616 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) [2021-12-16 03:05:05,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 03:05:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:05,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-16 03:05:05,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:05:06,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 8 [2021-12-16 03:05:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 03:05:06,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:05:06,445 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 03:05:06,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970215862] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 03:05:06,446 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 03:05:06,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2021-12-16 03:05:06,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124370267] [2021-12-16 03:05:06,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 03:05:06,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:05:06,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:06,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:05:06,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:05:06,449 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 279 [2021-12-16 03:05:06,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 245 transitions, 550 flow. Second operand has 6 states, 6 states have (on average 233.16666666666666) internal successors, (1399), 6 states have internal predecessors, (1399), 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) [2021-12-16 03:05:06,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:06,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 279 [2021-12-16 03:05:06,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:07,086 INFO L129 PetriNetUnfolder]: 2082/4847 cut-off events. [2021-12-16 03:05:07,086 INFO L130 PetriNetUnfolder]: For 1365/1365 co-relation queries the response was YES. [2021-12-16 03:05:07,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9546 conditions, 4847 events. 2082/4847 cut-off events. For 1365/1365 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 36246 event pairs, 515 based on Foata normal form. 0/4456 useless extension candidates. Maximal degree in co-relation 9536. Up to 1467 conditions per place. [2021-12-16 03:05:07,117 INFO L132 encePairwiseOnDemand]: 272/279 looper letters, 79 selfloop transitions, 16 changer transitions 0/304 dead transitions. [2021-12-16 03:05:07,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 304 transitions, 912 flow [2021-12-16 03:05:07,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 03:05:07,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-16 03:05:07,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1678 transitions. [2021-12-16 03:05:07,120 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8591909882232462 [2021-12-16 03:05:07,120 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1678 transitions. [2021-12-16 03:05:07,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1678 transitions. [2021-12-16 03:05:07,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:07,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1678 transitions. [2021-12-16 03:05:07,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 239.71428571428572) internal successors, (1678), 7 states have internal predecessors, (1678), 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) [2021-12-16 03:05:07,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 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) [2021-12-16 03:05:07,126 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 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) [2021-12-16 03:05:07,127 INFO L186 Difference]: Start difference. First operand has 250 places, 245 transitions, 550 flow. Second operand 7 states and 1678 transitions. [2021-12-16 03:05:07,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 304 transitions, 912 flow [2021-12-16 03:05:07,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 304 transitions, 908 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-16 03:05:07,134 INFO L242 Difference]: Finished difference. Result has 258 places, 260 transitions, 651 flow [2021-12-16 03:05:07,135 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=651, PETRI_PLACES=258, PETRI_TRANSITIONS=260} [2021-12-16 03:05:07,135 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, 8 predicate places. [2021-12-16 03:05:07,135 INFO L470 AbstractCegarLoop]: Abstraction has has 258 places, 260 transitions, 651 flow [2021-12-16 03:05:07,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.16666666666666) internal successors, (1399), 6 states have internal predecessors, (1399), 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) [2021-12-16 03:05:07,136 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:07,136 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:07,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 03:05:07,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:05:07,356 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:07,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:07,356 INFO L85 PathProgramCache]: Analyzing trace with hash -482271298, now seen corresponding path program 2 times [2021-12-16 03:05:07,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:07,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204862163] [2021-12-16 03:05:07,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:07,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:07,483 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 03:05:07,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:07,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204862163] [2021-12-16 03:05:07,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204862163] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:05:07,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592834887] [2021-12-16 03:05:07,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 03:05:07,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:05:07,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:05:07,500 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:05:07,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 03:05:07,646 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-16 03:05:07,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 03:05:07,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-16 03:05:07,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:05:08,075 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-16 03:05:08,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:05:08,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592834887] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:05:08,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:05:08,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2021-12-16 03:05:08,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339153972] [2021-12-16 03:05:08,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:05:08,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:05:08,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:08,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:05:08,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-12-16 03:05:08,079 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 279 [2021-12-16 03:05:08,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 260 transitions, 651 flow. Second operand has 6 states, 6 states have (on average 217.83333333333334) internal successors, (1307), 6 states have internal predecessors, (1307), 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) [2021-12-16 03:05:08,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:08,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 279 [2021-12-16 03:05:08,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:08,735 INFO L129 PetriNetUnfolder]: 727/3235 cut-off events. [2021-12-16 03:05:08,736 INFO L130 PetriNetUnfolder]: For 820/825 co-relation queries the response was YES. [2021-12-16 03:05:08,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5973 conditions, 3235 events. 727/3235 cut-off events. For 820/825 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 27466 event pairs, 270 based on Foata normal form. 46/2944 useless extension candidates. Maximal degree in co-relation 5960. Up to 681 conditions per place. [2021-12-16 03:05:08,756 INFO L132 encePairwiseOnDemand]: 270/279 looper letters, 53 selfloop transitions, 6 changer transitions 12/276 dead transitions. [2021-12-16 03:05:08,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 276 transitions, 842 flow [2021-12-16 03:05:08,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 03:05:08,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-16 03:05:08,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1538 transitions. [2021-12-16 03:05:08,760 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7875064004096262 [2021-12-16 03:05:08,760 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1538 transitions. [2021-12-16 03:05:08,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1538 transitions. [2021-12-16 03:05:08,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:08,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1538 transitions. [2021-12-16 03:05:08,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 219.71428571428572) internal successors, (1538), 7 states have internal predecessors, (1538), 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) [2021-12-16 03:05:08,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 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) [2021-12-16 03:05:08,766 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 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) [2021-12-16 03:05:08,766 INFO L186 Difference]: Start difference. First operand has 258 places, 260 transitions, 651 flow. Second operand 7 states and 1538 transitions. [2021-12-16 03:05:08,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 276 transitions, 842 flow [2021-12-16 03:05:08,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 276 transitions, 842 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-16 03:05:08,773 INFO L242 Difference]: Finished difference. Result has 266 places, 261 transitions, 675 flow [2021-12-16 03:05:08,773 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=675, PETRI_PLACES=266, PETRI_TRANSITIONS=261} [2021-12-16 03:05:08,774 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, 16 predicate places. [2021-12-16 03:05:08,774 INFO L470 AbstractCegarLoop]: Abstraction has has 266 places, 261 transitions, 675 flow [2021-12-16 03:05:08,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.83333333333334) internal successors, (1307), 6 states have internal predecessors, (1307), 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) [2021-12-16 03:05:08,774 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:08,775 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:08,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 03:05:08,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-12-16 03:05:08,993 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:08,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:08,994 INFO L85 PathProgramCache]: Analyzing trace with hash -310024590, now seen corresponding path program 1 times [2021-12-16 03:05:08,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:08,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870559730] [2021-12-16 03:05:08,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:08,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:09,130 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 03:05:09,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:09,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870559730] [2021-12-16 03:05:09,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870559730] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:05:09,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918284073] [2021-12-16 03:05:09,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:09,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:05:09,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:05:09,148 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:05:09,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 03:05:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:09,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-16 03:05:09,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:05:09,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2021-12-16 03:05:09,922 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-16 03:05:09,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:05:10,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2021-12-16 03:05:10,830 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-16 03:05:10,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918284073] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 03:05:10,830 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 03:05:10,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 29 [2021-12-16 03:05:10,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732980640] [2021-12-16 03:05:10,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 03:05:10,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-12-16 03:05:10,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:10,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-12-16 03:05:10,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2021-12-16 03:05:10,844 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 279 [2021-12-16 03:05:10,848 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 261 transitions, 675 flow. Second operand has 29 states, 29 states have (on average 167.10344827586206) internal successors, (4846), 29 states have internal predecessors, (4846), 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) [2021-12-16 03:05:10,852 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:10,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 279 [2021-12-16 03:05:10,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:14,974 INFO L129 PetriNetUnfolder]: 5200/13304 cut-off events. [2021-12-16 03:05:14,975 INFO L130 PetriNetUnfolder]: For 7603/7657 co-relation queries the response was YES. [2021-12-16 03:05:15,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29750 conditions, 13304 events. 5200/13304 cut-off events. For 7603/7657 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 130035 event pairs, 893 based on Foata normal form. 785/13150 useless extension candidates. Maximal degree in co-relation 29734. Up to 1562 conditions per place. [2021-12-16 03:05:15,055 INFO L132 encePairwiseOnDemand]: 234/279 looper letters, 216 selfloop transitions, 116 changer transitions 122/598 dead transitions. [2021-12-16 03:05:15,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 598 transitions, 2907 flow [2021-12-16 03:05:15,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-12-16 03:05:15,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-12-16 03:05:15,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 10488 transitions. [2021-12-16 03:05:15,082 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5966888547533709 [2021-12-16 03:05:15,082 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 10488 transitions. [2021-12-16 03:05:15,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 10488 transitions. [2021-12-16 03:05:15,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:15,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 10488 transitions. [2021-12-16 03:05:15,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 166.47619047619048) internal successors, (10488), 63 states have internal predecessors, (10488), 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) [2021-12-16 03:05:15,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 279.0) internal successors, (17856), 64 states have internal predecessors, (17856), 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) [2021-12-16 03:05:15,153 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 279.0) internal successors, (17856), 64 states have internal predecessors, (17856), 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) [2021-12-16 03:05:15,153 INFO L186 Difference]: Start difference. First operand has 266 places, 261 transitions, 675 flow. Second operand 63 states and 10488 transitions. [2021-12-16 03:05:15,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 598 transitions, 2907 flow [2021-12-16 03:05:15,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 598 transitions, 2891 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-16 03:05:15,185 INFO L242 Difference]: Finished difference. Result has 337 places, 335 transitions, 1314 flow [2021-12-16 03:05:15,186 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1314, PETRI_PLACES=337, PETRI_TRANSITIONS=335} [2021-12-16 03:05:15,187 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, 87 predicate places. [2021-12-16 03:05:15,187 INFO L470 AbstractCegarLoop]: Abstraction has has 337 places, 335 transitions, 1314 flow [2021-12-16 03:05:15,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 167.10344827586206) internal successors, (4846), 29 states have internal predecessors, (4846), 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) [2021-12-16 03:05:15,188 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:15,189 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:15,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-16 03:05:15,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:05:15,407 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:15,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:15,408 INFO L85 PathProgramCache]: Analyzing trace with hash 815896908, now seen corresponding path program 2 times [2021-12-16 03:05:15,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:15,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948555750] [2021-12-16 03:05:15,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:15,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:15,523 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 03:05:15,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:15,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948555750] [2021-12-16 03:05:15,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948555750] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:05:15,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222961705] [2021-12-16 03:05:15,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 03:05:15,524 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:05:15,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:05:15,533 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:05:15,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 03:05:15,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 03:05:15,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 03:05:15,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 03:05:15,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:05:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-16 03:05:16,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:05:16,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222961705] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:05:16,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:05:16,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2021-12-16 03:05:16,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208252320] [2021-12-16 03:05:16,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:05:16,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:05:16,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:16,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:05:16,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 03:05:16,170 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 279 [2021-12-16 03:05:16,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 335 transitions, 1314 flow. Second operand has 3 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 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) [2021-12-16 03:05:16,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:16,171 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 279 [2021-12-16 03:05:16,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:16,924 INFO L129 PetriNetUnfolder]: 1137/5476 cut-off events. [2021-12-16 03:05:16,925 INFO L130 PetriNetUnfolder]: For 5047/5111 co-relation queries the response was YES. [2021-12-16 03:05:17,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11431 conditions, 5476 events. 1137/5476 cut-off events. For 5047/5111 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 53312 event pairs, 365 based on Foata normal form. 78/5022 useless extension candidates. Maximal degree in co-relation 11401. Up to 1577 conditions per place. [2021-12-16 03:05:17,056 INFO L132 encePairwiseOnDemand]: 275/279 looper letters, 42 selfloop transitions, 4 changer transitions 1/341 dead transitions. [2021-12-16 03:05:17,057 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 341 transitions, 1436 flow [2021-12-16 03:05:17,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:05:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-16 03:05:17,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2021-12-16 03:05:17,058 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.899641577060932 [2021-12-16 03:05:17,058 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2021-12-16 03:05:17,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2021-12-16 03:05:17,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:17,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2021-12-16 03:05:17,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 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) [2021-12-16 03:05:17,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 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) [2021-12-16 03:05:17,074 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 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) [2021-12-16 03:05:17,074 INFO L186 Difference]: Start difference. First operand has 337 places, 335 transitions, 1314 flow. Second operand 3 states and 753 transitions. [2021-12-16 03:05:17,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 341 transitions, 1436 flow [2021-12-16 03:05:17,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 341 transitions, 1347 flow, removed 17 selfloop flow, removed 19 redundant places. [2021-12-16 03:05:17,097 INFO L242 Difference]: Finished difference. Result has 319 places, 333 transitions, 1238 flow [2021-12-16 03:05:17,097 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=1208, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1238, PETRI_PLACES=319, PETRI_TRANSITIONS=333} [2021-12-16 03:05:17,098 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, 69 predicate places. [2021-12-16 03:05:17,098 INFO L470 AbstractCegarLoop]: Abstraction has has 319 places, 333 transitions, 1238 flow [2021-12-16 03:05:17,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 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) [2021-12-16 03:05:17,098 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:17,099 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:17,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 03:05:17,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:05:17,300 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:17,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:17,300 INFO L85 PathProgramCache]: Analyzing trace with hash 23061294, now seen corresponding path program 3 times [2021-12-16 03:05:17,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:17,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925493625] [2021-12-16 03:05:17,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:17,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:17,475 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 03:05:17,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:17,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925493625] [2021-12-16 03:05:17,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925493625] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:05:17,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631524348] [2021-12-16 03:05:17,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 03:05:17,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:05:17,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:05:17,492 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:05:17,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 03:05:17,653 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-16 03:05:17,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 03:05:17,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-16 03:05:17,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:05:18,369 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-16 03:05:18,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:05:18,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2021-12-16 03:05:19,196 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-16 03:05:19,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631524348] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 03:05:19,197 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 03:05:19,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 29 [2021-12-16 03:05:19,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470632300] [2021-12-16 03:05:19,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 03:05:19,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-12-16 03:05:19,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:19,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-12-16 03:05:19,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=706, Unknown=0, NotChecked=0, Total=812 [2021-12-16 03:05:19,204 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 279 [2021-12-16 03:05:19,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 333 transitions, 1238 flow. Second operand has 29 states, 29 states have (on average 171.27586206896552) internal successors, (4967), 29 states have internal predecessors, (4967), 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) [2021-12-16 03:05:19,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:19,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 279 [2021-12-16 03:05:19,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:22,249 INFO L129 PetriNetUnfolder]: 2655/8157 cut-off events. [2021-12-16 03:05:22,249 INFO L130 PetriNetUnfolder]: For 7827/7948 co-relation queries the response was YES. [2021-12-16 03:05:22,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19031 conditions, 8157 events. 2655/8157 cut-off events. For 7827/7948 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 74548 event pairs, 441 based on Foata normal form. 222/7742 useless extension candidates. Maximal degree in co-relation 19005. Up to 1065 conditions per place. [2021-12-16 03:05:22,284 INFO L132 encePairwiseOnDemand]: 233/279 looper letters, 115 selfloop transitions, 65 changer transitions 222/548 dead transitions. [2021-12-16 03:05:22,284 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 548 transitions, 2960 flow [2021-12-16 03:05:22,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-12-16 03:05:22,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-12-16 03:05:22,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 11184 transitions. [2021-12-16 03:05:22,293 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6073639622026719 [2021-12-16 03:05:22,293 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 11184 transitions. [2021-12-16 03:05:22,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 11184 transitions. [2021-12-16 03:05:22,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:22,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 11184 transitions. [2021-12-16 03:05:22,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 169.45454545454547) internal successors, (11184), 66 states have internal predecessors, (11184), 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) [2021-12-16 03:05:22,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 279.0) internal successors, (18693), 67 states have internal predecessors, (18693), 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) [2021-12-16 03:05:22,324 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 279.0) internal successors, (18693), 67 states have internal predecessors, (18693), 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) [2021-12-16 03:05:22,324 INFO L186 Difference]: Start difference. First operand has 319 places, 333 transitions, 1238 flow. Second operand 66 states and 11184 transitions. [2021-12-16 03:05:22,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 548 transitions, 2960 flow [2021-12-16 03:05:22,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 548 transitions, 2948 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-12-16 03:05:22,341 INFO L242 Difference]: Finished difference. Result has 391 places, 276 transitions, 1049 flow [2021-12-16 03:05:22,342 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=66, PETRI_FLOW=1049, PETRI_PLACES=391, PETRI_TRANSITIONS=276} [2021-12-16 03:05:22,342 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, 141 predicate places. [2021-12-16 03:05:22,342 INFO L470 AbstractCegarLoop]: Abstraction has has 391 places, 276 transitions, 1049 flow [2021-12-16 03:05:22,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 171.27586206896552) internal successors, (4967), 29 states have internal predecessors, (4967), 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) [2021-12-16 03:05:22,343 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:22,344 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:22,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-16 03:05:22,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-16 03:05:22,562 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:22,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:22,562 INFO L85 PathProgramCache]: Analyzing trace with hash 356261993, now seen corresponding path program 4 times [2021-12-16 03:05:22,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:22,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274591732] [2021-12-16 03:05:22,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:22,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:22,742 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-16 03:05:22,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:22,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274591732] [2021-12-16 03:05:22,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274591732] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:05:22,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263161999] [2021-12-16 03:05:22,743 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-16 03:05:22,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:05:22,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:05:22,744 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:05:22,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-16 03:05:22,894 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-16 03:05:22,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 03:05:22,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-16 03:05:22,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:05:23,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:05:23,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-12-16 03:05:23,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-16 03:05:23,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2021-12-16 03:05:23,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 8 [2021-12-16 03:05:23,760 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-16 03:05:23,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:05:23,830 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_404 (Array Int Int))) (not (= 2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_404) c_~q1~0.base) (+ (* c_~q1_back~0 4) c_~q1~0.offset))))) is different from false [2021-12-16 03:05:23,871 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_403 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (not (= 2 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_403) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_404) c_~q1~0.base) (+ (* c_~q1_back~0 4) c_~q1~0.offset))))) is different from false [2021-12-16 03:05:23,889 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_403 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (not (= 2 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_403) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_404) c_~q1~0.base) (+ (* c_~q1_back~0 4) c_~q1~0.offset))))) (= 2 |c_thread1Thread1of1ForFork0_#t~mem1#1|)) is different from false [2021-12-16 03:05:23,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 142 [2021-12-16 03:05:23,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 114 [2021-12-16 03:05:23,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 102 [2021-12-16 03:05:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 3 not checked. [2021-12-16 03:05:24,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263161999] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 03:05:24,495 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 03:05:24,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 14] total 28 [2021-12-16 03:05:24,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326521449] [2021-12-16 03:05:24,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 03:05:24,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-16 03:05:24,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:24,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-16 03:05:24,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=529, Unknown=3, NotChecked=144, Total=756 [2021-12-16 03:05:24,500 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 279 [2021-12-16 03:05:24,504 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 276 transitions, 1049 flow. Second operand has 28 states, 28 states have (on average 200.03571428571428) internal successors, (5601), 28 states have internal predecessors, (5601), 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) [2021-12-16 03:05:24,504 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:24,504 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 279 [2021-12-16 03:05:24,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:26,371 INFO L129 PetriNetUnfolder]: 2981/8167 cut-off events. [2021-12-16 03:05:26,371 INFO L130 PetriNetUnfolder]: For 13784/13842 co-relation queries the response was YES. [2021-12-16 03:05:26,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20517 conditions, 8167 events. 2981/8167 cut-off events. For 13784/13842 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 73424 event pairs, 389 based on Foata normal form. 113/7727 useless extension candidates. Maximal degree in co-relation 20481. Up to 1468 conditions per place. [2021-12-16 03:05:26,427 INFO L132 encePairwiseOnDemand]: 243/279 looper letters, 164 selfloop transitions, 104 changer transitions 27/482 dead transitions. [2021-12-16 03:05:26,427 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 482 transitions, 2926 flow [2021-12-16 03:05:26,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-16 03:05:26,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-12-16 03:05:26,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 5496 transitions. [2021-12-16 03:05:26,432 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.729589804858622 [2021-12-16 03:05:26,432 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 5496 transitions. [2021-12-16 03:05:26,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 5496 transitions. [2021-12-16 03:05:26,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:26,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 5496 transitions. [2021-12-16 03:05:26,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 203.55555555555554) internal successors, (5496), 27 states have internal predecessors, (5496), 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) [2021-12-16 03:05:26,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 279.0) internal successors, (7812), 28 states have internal predecessors, (7812), 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) [2021-12-16 03:05:26,446 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 279.0) internal successors, (7812), 28 states have internal predecessors, (7812), 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) [2021-12-16 03:05:26,446 INFO L186 Difference]: Start difference. First operand has 391 places, 276 transitions, 1049 flow. Second operand 27 states and 5496 transitions. [2021-12-16 03:05:26,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 482 transitions, 2926 flow [2021-12-16 03:05:26,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 482 transitions, 2618 flow, removed 24 selfloop flow, removed 50 redundant places. [2021-12-16 03:05:26,492 INFO L242 Difference]: Finished difference. Result has 320 places, 350 transitions, 1781 flow [2021-12-16 03:05:26,493 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1781, PETRI_PLACES=320, PETRI_TRANSITIONS=350} [2021-12-16 03:05:26,493 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, 70 predicate places. [2021-12-16 03:05:26,493 INFO L470 AbstractCegarLoop]: Abstraction has has 320 places, 350 transitions, 1781 flow [2021-12-16 03:05:26,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 200.03571428571428) internal successors, (5601), 28 states have internal predecessors, (5601), 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) [2021-12-16 03:05:26,494 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:05:26,495 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:05:26,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-16 03:05:26,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:05:26,696 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-12-16 03:05:26,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:05:26,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1800655313, now seen corresponding path program 5 times [2021-12-16 03:05:26,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:05:26,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891917810] [2021-12-16 03:05:26,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:05:26,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:05:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:05:26,873 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-16 03:05:26,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:05:26,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891917810] [2021-12-16 03:05:26,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891917810] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:05:26,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114500242] [2021-12-16 03:05:26,972 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-16 03:05:26,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:05:26,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:05:26,973 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:05:26,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-16 03:05:27,120 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-12-16 03:05:27,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 03:05:27,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 03:05:27,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:05:27,458 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-16 03:05:27,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:05:27,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114500242] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:05:27,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:05:27,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2021-12-16 03:05:27,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017072318] [2021-12-16 03:05:27,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:05:27,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:05:27,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:05:27,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:05:27,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-12-16 03:05:27,461 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 279 [2021-12-16 03:05:27,462 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 350 transitions, 1781 flow. Second operand has 4 states, 4 states have (on average 246.0) internal successors, (984), 4 states have internal predecessors, (984), 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) [2021-12-16 03:05:27,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:05:27,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 279 [2021-12-16 03:05:27,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:05:28,339 INFO L129 PetriNetUnfolder]: 1809/5639 cut-off events. [2021-12-16 03:05:28,339 INFO L130 PetriNetUnfolder]: For 8693/8795 co-relation queries the response was YES. [2021-12-16 03:05:28,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15398 conditions, 5639 events. 1809/5639 cut-off events. For 8693/8795 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 48767 event pairs, 328 based on Foata normal form. 5/5201 useless extension candidates. Maximal degree in co-relation 15367. Up to 1823 conditions per place. [2021-12-16 03:05:28,381 INFO L132 encePairwiseOnDemand]: 275/279 looper letters, 0 selfloop transitions, 0 changer transitions 353/353 dead transitions. [2021-12-16 03:05:28,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 353 transitions, 1797 flow [2021-12-16 03:05:28,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:05:28,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:05:28,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1249 transitions. [2021-12-16 03:05:28,384 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8953405017921147 [2021-12-16 03:05:28,384 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1249 transitions. [2021-12-16 03:05:28,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1249 transitions. [2021-12-16 03:05:28,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:05:28,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1249 transitions. [2021-12-16 03:05:28,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 249.8) internal successors, (1249), 5 states have internal predecessors, (1249), 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) [2021-12-16 03:05:28,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 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) [2021-12-16 03:05:28,388 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 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) [2021-12-16 03:05:28,388 INFO L186 Difference]: Start difference. First operand has 320 places, 350 transitions, 1781 flow. Second operand 5 states and 1249 transitions. [2021-12-16 03:05:28,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 353 transitions, 1797 flow [2021-12-16 03:05:28,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 353 transitions, 1735 flow, removed 10 selfloop flow, removed 13 redundant places. [2021-12-16 03:05:28,417 INFO L242 Difference]: Finished difference. Result has 304 places, 0 transitions, 0 flow [2021-12-16 03:05:28,418 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=1433, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=304, PETRI_TRANSITIONS=0} [2021-12-16 03:05:28,418 INFO L334 CegarLoopForPetriNet]: 250 programPoint places, 54 predicate places. [2021-12-16 03:05:28,418 INFO L470 AbstractCegarLoop]: Abstraction has has 304 places, 0 transitions, 0 flow [2021-12-16 03:05:28,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 246.0) internal successors, (984), 4 states have internal predecessors, (984), 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) [2021-12-16 03:05:28,420 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-12-16 03:05:28,421 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-12-16 03:05:28,421 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-12-16 03:05:28,421 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2021-12-16 03:05:28,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-16 03:05:28,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:05:28,642 INFO L732 BasicCegarLoop]: Path program histogram: [5, 2, 2, 1, 1, 1, 1] [2021-12-16 03:05:28,643 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-16 03:05:28,643 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 03:05:28,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:05:28 BasicIcfg [2021-12-16 03:05:28,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 03:05:28,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 03:05:28,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 03:05:28,646 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 03:05:28,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:05:02" (3/4) ... [2021-12-16 03:05:28,649 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-16 03:05:28,655 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-12-16 03:05:28,656 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-12-16 03:05:28,656 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-12-16 03:05:28,662 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2021-12-16 03:05:28,663 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-16 03:05:28,663 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-16 03:05:28,663 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 03:05:28,704 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 03:05:28,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 03:05:28,705 INFO L158 Benchmark]: Toolchain (without parser) took 26900.83ms. Allocated memory was 92.3MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 62.9MB in the beginning and 2.1GB in the end (delta: -2.1GB). Peak memory consumption was 943.0MB. Max. memory is 16.1GB. [2021-12-16 03:05:28,705 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory was 48.3MB in the beginning and 48.2MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 03:05:28,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.60ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 66.8MB in the end (delta: -4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 03:05:28,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.74ms. Allocated memory is still 92.3MB. Free memory was 66.8MB in the beginning and 64.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 03:05:28,706 INFO L158 Benchmark]: Boogie Preprocessor took 55.49ms. Allocated memory is still 92.3MB. Free memory was 64.0MB in the beginning and 62.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 03:05:28,706 INFO L158 Benchmark]: RCFGBuilder took 596.07ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 62.2MB in the beginning and 90.0MB in the end (delta: -27.8MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2021-12-16 03:05:28,707 INFO L158 Benchmark]: TraceAbstraction took 25701.68ms. Allocated memory was 127.9MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 89.4MB in the beginning and 2.1GB in the end (delta: -2.1GB). Peak memory consumption was 930.1MB. Max. memory is 16.1GB. [2021-12-16 03:05:28,707 INFO L158 Benchmark]: Witness Printer took 58.36ms. Allocated memory is still 3.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 03:05:28,708 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory was 48.3MB in the beginning and 48.2MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.60ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 66.8MB in the end (delta: -4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.74ms. Allocated memory is still 92.3MB. Free memory was 66.8MB in the beginning and 64.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.49ms. Allocated memory is still 92.3MB. Free memory was 64.0MB in the beginning and 62.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 596.07ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 62.2MB in the beginning and 90.0MB in the end (delta: -27.8MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * TraceAbstraction took 25701.68ms. Allocated memory was 127.9MB in the beginning and 3.1GB in the end (delta: 3.0GB). Free memory was 89.4MB in the beginning and 2.1GB in the end (delta: -2.1GB). Peak memory consumption was 930.1MB. Max. memory is 16.1GB. * Witness Printer took 58.36ms. Allocated memory is still 3.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 156]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 301 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 25.6s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2823 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2823 mSDsluCounter, 2545 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 311 IncrementalHoareTripleChecker+Unchecked, 3443 mSDsCounter, 348 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5863 IncrementalHoareTripleChecker+Invalid, 6522 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 348 mSolverCounterUnsat, 316 mSDtfsCounter, 5863 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2959 GetRequests, 2658 SyntacticMatches, 13 SemanticMatches, 288 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 4707 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1781occurred in iteration=12, InterpolantAutomatonStates: 209, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 4664 NumberOfCodeBlocks, 4570 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 5620 ConstructedInterpolants, 20 QuantifiedInterpolants, 21091 SizeOfPredicates, 72 NumberOfNonLiveVariables, 3736 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 246/311 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-16 03:05:28,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE