./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/fib_unsafe-5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/fib_unsafe-5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 146f0d3d7f309689872842ec2e107172ef6d7d230f0dea419a95cb8899767aeb --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 21:34:58,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:34:58,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:34:58,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:34:58,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:34:58,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:34:58,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:34:58,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:34:58,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:34:58,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:34:58,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:34:58,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:34:58,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:34:58,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:34:58,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:34:58,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:34:58,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:34:58,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:34:58,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:34:58,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:34:58,793 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:34:58,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:34:58,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:34:58,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:34:58,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:34:58,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:34:58,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:34:58,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:34:58,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:34:58,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:34:58,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:34:58,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:34:58,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:34:58,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:34:58,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:34:58,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:34:58,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:34:58,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:34:58,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:34:58,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:34:58,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:34:58,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:34:58,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 21:34:58,836 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:34:58,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:34:58,837 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:34:58,837 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:34:58,837 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:34:58,837 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:34:58,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:34:58,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:34:58,838 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:34:58,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:34:58,839 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:34:58,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 21:34:58,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:34:58,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:34:58,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:34:58,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:34:58,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:34:58,840 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:34:58,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:34:58,840 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:34:58,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:34:58,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:34:58,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:34:58,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:34:58,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:34:58,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:34:58,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:34:58,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:34:58,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 21:34:58,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 21:34:58,843 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:34:58,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:34:58,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:34:58,843 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 146f0d3d7f309689872842ec2e107172ef6d7d230f0dea419a95cb8899767aeb [2022-07-13 21:34:59,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:34:59,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:34:59,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:34:59,074 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:34:59,087 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:34:59,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/fib_unsafe-5.i [2022-07-13 21:34:59,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2ca60c78/10429f2532f2465bac276d311ff1188b/FLAG0e1cdb0af [2022-07-13 21:34:59,565 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:34:59,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/fib_unsafe-5.i [2022-07-13 21:34:59,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2ca60c78/10429f2532f2465bac276d311ff1188b/FLAG0e1cdb0af [2022-07-13 21:34:59,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2ca60c78/10429f2532f2465bac276d311ff1188b [2022-07-13 21:34:59,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:34:59,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:34:59,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:34:59,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:34:59,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:34:59,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:34:59" (1/1) ... [2022-07-13 21:34:59,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c0ce5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:34:59, skipping insertion in model container [2022-07-13 21:34:59,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:34:59" (1/1) ... [2022-07-13 21:34:59,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:34:59,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:34:59,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/fib_unsafe-5.i[30819,30832] [2022-07-13 21:34:59,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:34:59,939 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:34:59,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/fib_unsafe-5.i[30819,30832] [2022-07-13 21:34:59,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:35:00,013 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:35:00,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:35:00 WrapperNode [2022-07-13 21:35:00,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:35:00,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:35:00,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:35:00,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:35:00,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:35:00" (1/1) ... [2022-07-13 21:35:00,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:35:00" (1/1) ... [2022-07-13 21:35:00,047 INFO L137 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-07-13 21:35:00,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:35:00,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:35:00,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:35:00,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:35:00,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:35:00" (1/1) ... [2022-07-13 21:35:00,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:35:00" (1/1) ... [2022-07-13 21:35:00,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:35:00" (1/1) ... [2022-07-13 21:35:00,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:35:00" (1/1) ... [2022-07-13 21:35:00,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:35:00" (1/1) ... [2022-07-13 21:35:00,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:35:00" (1/1) ... [2022-07-13 21:35:00,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:35:00" (1/1) ... [2022-07-13 21:35:00,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:35:00,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:35:00,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:35:00,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:35:00,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:35:00" (1/1) ... [2022-07-13 21:35:00,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:35:00,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:35:00,096 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) [2022-07-13 21:35:00,097 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 [2022-07-13 21:35:00,134 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-07-13 21:35:00,134 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-07-13 21:35:00,134 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-07-13 21:35:00,134 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-07-13 21:35:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 21:35:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-13 21:35:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:35:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 21:35:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 21:35:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 21:35:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-13 21:35:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:35:00,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:35:00,136 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 21:35:00,301 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:35:00,302 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:35:00,488 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:35:00,493 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:35:00,493 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-13 21:35:00,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:35:00 BoogieIcfgContainer [2022-07-13 21:35:00,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:35:00,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:35:00,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:35:00,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:35:00,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:34:59" (1/3) ... [2022-07-13 21:35:00,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46654fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:35:00, skipping insertion in model container [2022-07-13 21:35:00,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:35:00" (2/3) ... [2022-07-13 21:35:00,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46654fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:35:00, skipping insertion in model container [2022-07-13 21:35:00,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:35:00" (3/3) ... [2022-07-13 21:35:00,506 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_unsafe-5.i [2022-07-13 21:35:00,509 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 21:35:00,515 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:35:00,515 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 21:35:00,515 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 21:35:00,558 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-13 21:35:00,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 96 transitions, 202 flow [2022-07-13 21:35:00,634 INFO L129 PetriNetUnfolder]: 7/94 cut-off events. [2022-07-13 21:35:00,635 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 21:35:00,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 94 events. 7/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-07-13 21:35:00,638 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 96 transitions, 202 flow [2022-07-13 21:35:00,641 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 94 transitions, 194 flow [2022-07-13 21:35:00,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:35:00,651 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@176881a6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@f0b3a45 [2022-07-13 21:35:00,651 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-13 21:35:00,665 INFO L129 PetriNetUnfolder]: 6/83 cut-off events. [2022-07-13 21:35:00,668 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 21:35:00,669 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:35:00,669 INFO L200 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] [2022-07-13 21:35:00,670 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 21:35:00,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:35:00,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1927097680, now seen corresponding path program 1 times [2022-07-13 21:35:00,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:35:00,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745691977] [2022-07-13 21:35:00,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:35:00,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:35:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:35:00,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:00,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:35:00,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745691977] [2022-07-13 21:35:00,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745691977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:35:00,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:35:00,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 21:35:00,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478409183] [2022-07-13 21:35:00,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:35:00,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 21:35:00,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:35:00,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 21:35:00,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 21:35:00,880 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 96 [2022-07-13 21:35:00,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 94 transitions, 194 flow. Second operand has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 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) [2022-07-13 21:35:00,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:35:00,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 96 [2022-07-13 21:35:00,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:35:00,929 INFO L129 PetriNetUnfolder]: 3/89 cut-off events. [2022-07-13 21:35:00,930 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-13 21:35:00,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 3/89 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 5/90 useless extension candidates. Maximal degree in co-relation 60. Up to 3 conditions per place. [2022-07-13 21:35:00,931 INFO L132 encePairwiseOnDemand]: 92/96 looper letters, 2 selfloop transitions, 0 changer transitions 0/89 dead transitions. [2022-07-13 21:35:00,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 89 transitions, 188 flow [2022-07-13 21:35:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 21:35:00,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-07-13 21:35:00,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 184 transitions. [2022-07-13 21:35:00,944 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2022-07-13 21:35:00,945 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 184 transitions. [2022-07-13 21:35:00,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 184 transitions. [2022-07-13 21:35:00,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:35:00,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 184 transitions. [2022-07-13 21:35:00,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 92.0) internal successors, (184), 2 states have internal predecessors, (184), 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) [2022-07-13 21:35:00,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2022-07-13 21:35:00,960 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2022-07-13 21:35:00,961 INFO L186 Difference]: Start difference. First operand has 94 places, 94 transitions, 194 flow. Second operand 2 states and 184 transitions. [2022-07-13 21:35:00,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 89 transitions, 188 flow [2022-07-13 21:35:00,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 89 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-13 21:35:00,968 INFO L242 Difference]: Finished difference. Result has 92 places, 89 transitions, 182 flow [2022-07-13 21:35:00,969 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=182, PETRI_PLACES=92, PETRI_TRANSITIONS=89} [2022-07-13 21:35:00,971 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2022-07-13 21:35:00,972 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 89 transitions, 182 flow [2022-07-13 21:35:00,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 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) [2022-07-13 21:35:00,973 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:35:00,973 INFO L200 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] [2022-07-13 21:35:00,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 21:35:00,973 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 21:35:00,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:35:00,974 INFO L85 PathProgramCache]: Analyzing trace with hash 560415153, now seen corresponding path program 1 times [2022-07-13 21:35:00,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:35:00,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791428127] [2022-07-13 21:35:00,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:35:00,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:35:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:35:01,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:01,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:35:01,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791428127] [2022-07-13 21:35:01,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791428127] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:35:01,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:35:01,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 21:35:01,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827781200] [2022-07-13 21:35:01,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:35:01,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 21:35:01,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:35:01,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 21:35:01,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 21:35:01,094 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 96 [2022-07-13 21:35:01,096 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 89 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2022-07-13 21:35:01,096 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:35:01,096 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 96 [2022-07-13 21:35:01,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:35:01,137 INFO L129 PetriNetUnfolder]: 3/95 cut-off events. [2022-07-13 21:35:01,138 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 21:35:01,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 95 events. 3/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 110. Up to 6 conditions per place. [2022-07-13 21:35:01,140 INFO L132 encePairwiseOnDemand]: 93/96 looper letters, 9 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2022-07-13 21:35:01,140 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 92 transitions, 210 flow [2022-07-13 21:35:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 21:35:01,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-13 21:35:01,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2022-07-13 21:35:01,145 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.90625 [2022-07-13 21:35:01,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 261 transitions. [2022-07-13 21:35:01,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 261 transitions. [2022-07-13 21:35:01,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:35:01,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 261 transitions. [2022-07-13 21:35:01,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2022-07-13 21:35:01,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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) [2022-07-13 21:35:01,149 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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) [2022-07-13 21:35:01,149 INFO L186 Difference]: Start difference. First operand has 92 places, 89 transitions, 182 flow. Second operand 3 states and 261 transitions. [2022-07-13 21:35:01,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 92 transitions, 210 flow [2022-07-13 21:35:01,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 92 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-13 21:35:01,152 INFO L242 Difference]: Finished difference. Result has 95 places, 90 transitions, 194 flow [2022-07-13 21:35:01,152 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=95, PETRI_TRANSITIONS=90} [2022-07-13 21:35:01,153 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 1 predicate places. [2022-07-13 21:35:01,153 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 90 transitions, 194 flow [2022-07-13 21:35:01,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2022-07-13 21:35:01,154 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:35:01,154 INFO L200 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] [2022-07-13 21:35:01,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 21:35:01,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 21:35:01,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:35:01,156 INFO L85 PathProgramCache]: Analyzing trace with hash -951035470, now seen corresponding path program 1 times [2022-07-13 21:35:01,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:35:01,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976811428] [2022-07-13 21:35:01,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:35:01,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:35:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:35:01,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:01,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:35:01,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976811428] [2022-07-13 21:35:01,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976811428] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 21:35:01,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106507413] [2022-07-13 21:35:01,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:35:01,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 21:35:01,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:35:01,248 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) [2022-07-13 21:35:01,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 21:35:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:35:01,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 21:35:01,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 21:35:01,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:01,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 21:35:01,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:01,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106507413] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 21:35:01,467 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 21:35:01,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-07-13 21:35:01,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281274658] [2022-07-13 21:35:01,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 21:35:01,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 21:35:01,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:35:01,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 21:35:01,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-13 21:35:01,471 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 96 [2022-07-13 21:35:01,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 194 flow. Second operand has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 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) [2022-07-13 21:35:01,472 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:35:01,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 96 [2022-07-13 21:35:01,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:35:01,554 INFO L129 PetriNetUnfolder]: 3/104 cut-off events. [2022-07-13 21:35:01,554 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-13 21:35:01,555 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 104 events. 3/104 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 2/103 useless extension candidates. Maximal degree in co-relation 133. Up to 6 conditions per place. [2022-07-13 21:35:01,555 INFO L132 encePairwiseOnDemand]: 90/96 looper letters, 10 selfloop transitions, 9 changer transitions 0/98 dead transitions. [2022-07-13 21:35:01,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 98 transitions, 250 flow [2022-07-13 21:35:01,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 21:35:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-13 21:35:01,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 750 transitions. [2022-07-13 21:35:01,562 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8680555555555556 [2022-07-13 21:35:01,562 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 750 transitions. [2022-07-13 21:35:01,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 750 transitions. [2022-07-13 21:35:01,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:35:01,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 750 transitions. [2022-07-13 21:35:01,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 83.33333333333333) internal successors, (750), 9 states have internal predecessors, (750), 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) [2022-07-13 21:35:01,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 96.0) internal successors, (960), 10 states have internal predecessors, (960), 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) [2022-07-13 21:35:01,567 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 96.0) internal successors, (960), 10 states have internal predecessors, (960), 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) [2022-07-13 21:35:01,567 INFO L186 Difference]: Start difference. First operand has 95 places, 90 transitions, 194 flow. Second operand 9 states and 750 transitions. [2022-07-13 21:35:01,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 98 transitions, 250 flow [2022-07-13 21:35:01,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 98 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-13 21:35:01,570 INFO L242 Difference]: Finished difference. Result has 105 places, 96 transitions, 242 flow [2022-07-13 21:35:01,571 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=242, PETRI_PLACES=105, PETRI_TRANSITIONS=96} [2022-07-13 21:35:01,571 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 11 predicate places. [2022-07-13 21:35:01,572 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 96 transitions, 242 flow [2022-07-13 21:35:01,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 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) [2022-07-13 21:35:01,573 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:35:01,573 INFO L200 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:35:01,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 21:35:01,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 21:35:01,784 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 21:35:01,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:35:01,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1666707666, now seen corresponding path program 2 times [2022-07-13 21:35:01,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:35:01,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096925783] [2022-07-13 21:35:01,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:35:01,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:35:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:35:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:01,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:35:01,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096925783] [2022-07-13 21:35:01,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096925783] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 21:35:01,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497722160] [2022-07-13 21:35:01,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 21:35:01,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 21:35:01,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:35:01,875 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) [2022-07-13 21:35:01,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 21:35:01,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 21:35:01,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 21:35:01,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 21:35:01,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 21:35:02,019 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:02,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 21:35:02,106 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:02,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497722160] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 21:35:02,107 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 21:35:02,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-07-13 21:35:02,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112365736] [2022-07-13 21:35:02,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 21:35:02,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 21:35:02,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:35:02,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 21:35:02,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-07-13 21:35:02,114 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 96 [2022-07-13 21:35:02,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 96 transitions, 242 flow. Second operand has 18 states, 18 states have (on average 83.0) internal successors, (1494), 18 states have internal predecessors, (1494), 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) [2022-07-13 21:35:02,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:35:02,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 96 [2022-07-13 21:35:02,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:35:02,264 INFO L129 PetriNetUnfolder]: 3/132 cut-off events. [2022-07-13 21:35:02,265 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-07-13 21:35:02,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 132 events. 3/132 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 4/133 useless extension candidates. Maximal degree in co-relation 224. Up to 11 conditions per place. [2022-07-13 21:35:02,266 INFO L132 encePairwiseOnDemand]: 90/96 looper letters, 14 selfloop transitions, 21 changer transitions 0/114 dead transitions. [2022-07-13 21:35:02,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 114 transitions, 408 flow [2022-07-13 21:35:02,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-13 21:35:02,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-07-13 21:35:02,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1740 transitions. [2022-07-13 21:35:02,269 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8630952380952381 [2022-07-13 21:35:02,270 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1740 transitions. [2022-07-13 21:35:02,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1740 transitions. [2022-07-13 21:35:02,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:35:02,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1740 transitions. [2022-07-13 21:35:02,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 82.85714285714286) internal successors, (1740), 21 states have internal predecessors, (1740), 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) [2022-07-13 21:35:02,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 96.0) internal successors, (2112), 22 states have internal predecessors, (2112), 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) [2022-07-13 21:35:02,277 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 96.0) internal successors, (2112), 22 states have internal predecessors, (2112), 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) [2022-07-13 21:35:02,277 INFO L186 Difference]: Start difference. First operand has 105 places, 96 transitions, 242 flow. Second operand 21 states and 1740 transitions. [2022-07-13 21:35:02,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 114 transitions, 408 flow [2022-07-13 21:35:02,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 114 transitions, 394 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-07-13 21:35:02,280 INFO L242 Difference]: Finished difference. Result has 129 places, 109 transitions, 366 flow [2022-07-13 21:35:02,280 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=366, PETRI_PLACES=129, PETRI_TRANSITIONS=109} [2022-07-13 21:35:02,281 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 35 predicate places. [2022-07-13 21:35:02,281 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 109 transitions, 366 flow [2022-07-13 21:35:02,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 83.0) internal successors, (1494), 18 states have internal predecessors, (1494), 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) [2022-07-13 21:35:02,282 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:35:02,282 INFO L200 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:35:02,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-13 21:35:02,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-13 21:35:02,496 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 21:35:02,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:35:02,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1283180782, now seen corresponding path program 3 times [2022-07-13 21:35:02,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:35:02,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509831200] [2022-07-13 21:35:02,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:35:02,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:35:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:35:02,668 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:02,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:35:02,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509831200] [2022-07-13 21:35:02,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509831200] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 21:35:02,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461467345] [2022-07-13 21:35:02,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 21:35:02,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 21:35:02,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:35:02,676 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) [2022-07-13 21:35:02,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 21:35:02,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-07-13 21:35:02,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 21:35:02,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-13 21:35:02,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 21:35:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:02,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 21:35:02,996 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:02,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461467345] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 21:35:02,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 21:35:02,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 27 [2022-07-13 21:35:02,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678414494] [2022-07-13 21:35:02,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 21:35:02,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-13 21:35:02,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:35:02,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-13 21:35:02,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2022-07-13 21:35:03,000 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 96 [2022-07-13 21:35:03,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 109 transitions, 366 flow. Second operand has 27 states, 27 states have (on average 83.07407407407408) internal successors, (2243), 27 states have internal predecessors, (2243), 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) [2022-07-13 21:35:03,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:35:03,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 96 [2022-07-13 21:35:03,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:35:03,312 INFO L129 PetriNetUnfolder]: 3/167 cut-off events. [2022-07-13 21:35:03,312 INFO L130 PetriNetUnfolder]: For 184/184 co-relation queries the response was YES. [2022-07-13 21:35:03,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 167 events. 3/167 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 5/169 useless extension candidates. Maximal degree in co-relation 369. Up to 21 conditions per place. [2022-07-13 21:35:03,316 INFO L132 encePairwiseOnDemand]: 90/96 looper letters, 19 selfloop transitions, 36 changer transitions 0/134 dead transitions. [2022-07-13 21:35:03,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 134 transitions, 668 flow [2022-07-13 21:35:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-13 21:35:03,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-07-13 21:35:03,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2976 transitions. [2022-07-13 21:35:03,321 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8611111111111112 [2022-07-13 21:35:03,321 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 2976 transitions. [2022-07-13 21:35:03,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 2976 transitions. [2022-07-13 21:35:03,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:35:03,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 2976 transitions. [2022-07-13 21:35:03,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 82.66666666666667) internal successors, (2976), 36 states have internal predecessors, (2976), 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) [2022-07-13 21:35:03,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 96.0) internal successors, (3552), 37 states have internal predecessors, (3552), 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) [2022-07-13 21:35:03,331 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 96.0) internal successors, (3552), 37 states have internal predecessors, (3552), 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) [2022-07-13 21:35:03,331 INFO L186 Difference]: Start difference. First operand has 129 places, 109 transitions, 366 flow. Second operand 36 states and 2976 transitions. [2022-07-13 21:35:03,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 134 transitions, 668 flow [2022-07-13 21:35:03,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 134 transitions, 634 flow, removed 11 selfloop flow, removed 6 redundant places. [2022-07-13 21:35:03,336 INFO L242 Difference]: Finished difference. Result has 164 places, 125 transitions, 554 flow [2022-07-13 21:35:03,336 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=554, PETRI_PLACES=164, PETRI_TRANSITIONS=125} [2022-07-13 21:35:03,337 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 70 predicate places. [2022-07-13 21:35:03,337 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 125 transitions, 554 flow [2022-07-13 21:35:03,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 83.07407407407408) internal successors, (2243), 27 states have internal predecessors, (2243), 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) [2022-07-13 21:35:03,338 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:35:03,338 INFO L200 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:35:03,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 21:35:03,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 21:35:03,562 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-13 21:35:03,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:35:03,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1938020081, now seen corresponding path program 4 times [2022-07-13 21:35:03,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:35:03,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876431528] [2022-07-13 21:35:03,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:35:03,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:35:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:35:04,554 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:04,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:35:04,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876431528] [2022-07-13 21:35:04,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876431528] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 21:35:04,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790601359] [2022-07-13 21:35:04,555 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 21:35:04,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 21:35:04,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:35:04,557 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) [2022-07-13 21:35:04,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 21:35:04,624 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 21:35:04,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 21:35:04,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 41 conjunts are in the unsatisfiable core [2022-07-13 21:35:04,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 21:35:06,780 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 335 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:35:06,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 21:38:50,944 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 472 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:38:50,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790601359] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 21:38:50,945 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 21:38:50,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 121 [2022-07-13 21:38:50,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601107540] [2022-07-13 21:38:50,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 21:38:50,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2022-07-13 21:38:50,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:38:50,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2022-07-13 21:38:50,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=13532, Unknown=42, NotChecked=0, Total=14520 [2022-07-13 21:38:50,953 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 96 [2022-07-13 21:38:50,961 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 125 transitions, 554 flow. Second operand has 121 states, 121 states have (on average 69.27272727272727) internal successors, (8382), 121 states have internal predecessors, (8382), 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) [2022-07-13 21:38:50,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:38:50,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 96 [2022-07-13 21:38:50,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:38:53,936 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* 2 c_~cur~0) 3 c_~prev~0)) (.cse0 (* (- 1) c_~i~0)) (.cse2 (* (- 1) c_~j~0)) (.cse3 (+ c_~prev~0 1 c_~cur~0))) (and (<= (div (+ (- 7) c_~prev~0 .cse0 c_~cur~0) (- 2)) .cse1) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (v_~cur~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< v_~cur~0_22 (+ (* 2 v_~cur~0_24) c_~prev~0 v_~cur~0_26 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) v_~cur~0_26 v_~cur~0_24 c_~cur~0)) (< v_~cur~0_24 (+ (* 2 v_~cur~0_26) c_~prev~0 c_~cur~0)) (< v_~cur~0_26 (+ (* 2 c_~cur~0) c_~prev~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56))) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (v_~cur~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< v_~cur~0_22 (+ (* 2 v_~cur~0_24) c_~prev~0 v_~cur~0_26 c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (>= aux_mod_v_~next~0_20_56 2) (< (+ aux_mod_v_~next~0_20_56 c_~j~0 9) (+ (* 2 v_~cur~0_22) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) v_~cur~0_26 v_~cur~0_24 c_~cur~0)) (< v_~cur~0_24 (+ (* 2 v_~cur~0_26) c_~prev~0 c_~cur~0)) (< v_~cur~0_26 (+ (* 2 c_~cur~0) c_~prev~0)) (> 0 aux_mod_v_~next~0_20_56))) (forall ((v_~cur~0_26 Int)) (or (< v_~cur~0_26 (+ c_~prev~0 c_~cur~0)) (and (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (v_~cur~0_24 Int) (aux_mod_v_~next~0_20_56 Int)) (or (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (< v_~cur~0_22 (+ (* 2 v_~cur~0_24) v_~cur~0_26 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (< (+ aux_mod_v_~next~0_20_56 c_~j~0 9) (+ (* 2 v_~cur~0_22) (* 2 aux_div_v_~next~0_20_56) v_~cur~0_26 v_~cur~0_24 c_~cur~0)) (< v_~cur~0_24 (+ (* 2 v_~cur~0_26) c_~cur~0)) (> 0 aux_mod_v_~next~0_20_56))) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (v_~cur~0_24 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< v_~cur~0_22 (+ (* 2 v_~cur~0_24) v_~cur~0_26 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) (* 2 aux_div_v_~next~0_20_56) v_~cur~0_26 v_~cur~0_24 c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (< v_~cur~0_24 (+ (* 2 v_~cur~0_26) c_~cur~0)) (> 0 aux_mod_v_~next~0_20_56)))))) (<= (div (+ (- 7) c_~prev~0 .cse2 c_~cur~0) (- 2)) .cse1) (= c_~prev~0 0) (forall ((v_~cur~0_22 Int)) (or (< v_~cur~0_22 (+ c_~prev~0 c_~cur~0)) (and (forall ((aux_div_v_~next~0_20_56 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 c_~j~0 9) (+ (* 2 v_~cur~0_22) (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (>= aux_mod_v_~next~0_20_56 2) (> 0 aux_mod_v_~next~0_20_56))) (forall ((aux_div_v_~next~0_20_56 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56)))))) (forall ((v_~cur~0_24 Int)) (or (and (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (aux_mod_v_~next~0_20_56 Int)) (or (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (< v_~cur~0_22 (+ (* 2 v_~cur~0_24) c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (< (+ aux_mod_v_~next~0_20_56 c_~j~0 9) (+ (* 2 v_~cur~0_22) (* 2 aux_div_v_~next~0_20_56) v_~cur~0_24 c_~cur~0)) (> 0 aux_mod_v_~next~0_20_56))) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) (* 2 aux_div_v_~next~0_20_56) v_~cur~0_24 c_~cur~0)) (< v_~cur~0_22 (+ (* 2 v_~cur~0_24) c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56)))) (< v_~cur~0_24 (+ c_~prev~0 c_~cur~0)))) (= 1 c_~cur~0) (<= (div (+ (- 3) .cse0 c_~cur~0) (- 2)) .cse3) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 c_~j~0 9) (+ (* 2 v_~cur~0_22) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (>= aux_mod_v_~next~0_20_56 2) (< v_~cur~0_22 (+ (* 2 c_~cur~0) c_~prev~0)) (> 0 aux_mod_v_~next~0_20_56))) (<= (div (+ (- 3) .cse2 c_~cur~0) (- 2)) .cse3) (forall ((aux_div_v_~next~0_20_56 Int) (aux_mod_v_~next~0_20_56 Int)) (or (not (<= (+ (* 2 c_~cur~0) c_~prev~0 (* 2 aux_div_v_~next~0_20_56)) (+ aux_mod_v_~next~0_20_56 9 c_~i~0))) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 5 aux_div_v_~next~0_20_56) c_~cur~0) (+ 22 (* 2 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56))) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (v_~cur~0_24 Int) (aux_mod_v_~next~0_20_56 Int)) (or (>= aux_mod_v_~next~0_20_56 2) (< v_~cur~0_22 (+ (* 2 v_~cur~0_24) c_~prev~0 c_~cur~0)) (< v_~cur~0_24 (+ (* 2 c_~cur~0) c_~prev~0)) (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) v_~cur~0_24 c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56))) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (< v_~cur~0_22 (+ (* 2 c_~cur~0) c_~prev~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56))) (forall ((aux_div_v_~next~0_20_56 Int) (aux_mod_v_~next~0_20_56 Int)) (or (<= (+ (* 5 aux_div_v_~next~0_20_56) c_~cur~0) (+ 22 (* 2 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (not (<= (+ (* 2 c_~cur~0) c_~prev~0 (* 2 aux_div_v_~next~0_20_56)) (+ aux_mod_v_~next~0_20_56 c_~j~0 9))) (>= aux_mod_v_~next~0_20_56 2) (> 0 aux_mod_v_~next~0_20_56))) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (v_~cur~0_24 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 c_~j~0 9) (+ (* 2 v_~cur~0_22) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) v_~cur~0_24 c_~cur~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~j~0) (* aux_mod_v_~next~0_20_56 2))) (>= aux_mod_v_~next~0_20_56 2) (< v_~cur~0_22 (+ (* 2 v_~cur~0_24) c_~prev~0 c_~cur~0)) (< v_~cur~0_24 (+ (* 2 c_~cur~0) c_~prev~0)) (> 0 aux_mod_v_~next~0_20_56))) (forall ((v_~j~0_8 Int)) (or (and (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (v_~cur~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< v_~cur~0_22 (+ (* 2 v_~cur~0_24) c_~prev~0 v_~cur~0_26 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (< (+ aux_mod_v_~next~0_20_56 9 c_~i~0) (+ (* 2 v_~cur~0_22) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) v_~cur~0_26 v_~cur~0_24 c_~cur~0)) (< v_~cur~0_24 (+ (* 2 v_~cur~0_26) c_~prev~0 c_~cur~0)) (< v_~cur~0_26 (+ (* 2 c_~cur~0) c_~prev~0)) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 c_~i~0) (* aux_mod_v_~next~0_20_56 2))) (> 0 aux_mod_v_~next~0_20_56))) (forall ((aux_div_v_~next~0_20_56 Int) (v_~cur~0_22 Int) (v_~cur~0_24 Int) (v_~cur~0_26 Int) (aux_mod_v_~next~0_20_56 Int)) (or (< (+ aux_mod_v_~next~0_20_56 9 v_~j~0_8) (+ (* 2 v_~cur~0_22) c_~prev~0 (* 2 aux_div_v_~next~0_20_56) v_~cur~0_26 v_~cur~0_24 c_~cur~0)) (< v_~cur~0_22 (+ (* 2 v_~cur~0_24) c_~prev~0 v_~cur~0_26 c_~cur~0)) (>= aux_mod_v_~next~0_20_56 2) (<= (+ (* 5 aux_div_v_~next~0_20_56) v_~cur~0_22) (+ 22 (* 2 v_~j~0_8) (* aux_mod_v_~next~0_20_56 2))) (< v_~cur~0_24 (+ (* 2 v_~cur~0_26) c_~prev~0 c_~cur~0)) (< v_~cur~0_26 (+ (* 2 c_~cur~0) c_~prev~0)) (> 0 aux_mod_v_~next~0_20_56)))) (not (<= v_~j~0_8 1)))))) is different from false