./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU --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 422a1b4addf42b15afc18c6b3ff87ab94cf45a5af46627fa0165a3dbe9c138e8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:11:07,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:11:07,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:11:07,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:11:07,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:11:07,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:11:07,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:11:07,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:11:07,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:11:07,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:11:07,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:11:07,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:11:07,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:11:07,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:11:07,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:11:07,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:11:07,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:11:07,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:11:07,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:11:07,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:11:07,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:11:07,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:11:07,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:11:07,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:11:07,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:11:07,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:11:07,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:11:07,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:11:07,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:11:07,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:11:07,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:11:07,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:11:07,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:11:07,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:11:07,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:11:07,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:11:07,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:11:07,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:11:07,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:11:07,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:11:07,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:11:07,891 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 23:11:07,947 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:11:07,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:11:07,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:11:07,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:11:07,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:11:07,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:11:07,957 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:11:07,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:11:07,958 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:11:07,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:11:07,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:11:07,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:11:07,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:11:07,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:11:07,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:11:07,961 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:11:07,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:11:07,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:11:07,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:11:07,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:11:07,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:11:07,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:11:07,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:11:07,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:11:07,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:11:07,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:11:07,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:11:07,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:11:07,965 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:11:07,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:11:07,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:11:07,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:11:07,969 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 422a1b4addf42b15afc18c6b3ff87ab94cf45a5af46627fa0165a3dbe9c138e8 [2021-11-02 23:11:08,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:11:08,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:11:08,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:11:08,333 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:11:08,335 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:11:08,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c [2021-11-02 23:11:08,419 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/data/af404206d/85c21bccff344ca9b0def4035d2f8f1c/FLAG0c700e928 [2021-11-02 23:11:08,950 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:11:08,953 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c [2021-11-02 23:11:08,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/data/af404206d/85c21bccff344ca9b0def4035d2f8f1c/FLAG0c700e928 [2021-11-02 23:11:09,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/data/af404206d/85c21bccff344ca9b0def4035d2f8f1c [2021-11-02 23:11:09,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:11:09,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:11:09,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:11:09,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:11:09,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:11:09,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:11:09" (1/1) ... [2021-11-02 23:11:09,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1f32d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09, skipping insertion in model container [2021-11-02 23:11:09,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:11:09" (1/1) ... [2021-11-02 23:11:09,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:11:09,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:11:09,553 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c[4218,4231] [2021-11-02 23:11:09,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:11:09,577 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:11:09,616 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c[4218,4231] [2021-11-02 23:11:09,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:11:09,657 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:11:09,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09 WrapperNode [2021-11-02 23:11:09,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:11:09,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:11:09,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:11:09,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:11:09,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09" (1/1) ... [2021-11-02 23:11:09,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09" (1/1) ... [2021-11-02 23:11:09,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:11:09,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:11:09,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:11:09,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:11:09,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09" (1/1) ... [2021-11-02 23:11:09,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09" (1/1) ... [2021-11-02 23:11:09,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09" (1/1) ... [2021-11-02 23:11:09,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09" (1/1) ... [2021-11-02 23:11:09,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09" (1/1) ... [2021-11-02 23:11:09,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09" (1/1) ... [2021-11-02 23:11:09,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09" (1/1) ... [2021-11-02 23:11:09,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:11:09,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:11:09,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:11:09,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:11:09,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09" (1/1) ... [2021-11-02 23:11:09,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:11:09,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:09,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:11:09,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:11:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:11:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:11:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:11:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-02 23:11:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-02 23:11:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-02 23:11:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-02 23:11:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-02 23:11:09,892 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-02 23:11:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-02 23:11:09,892 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-02 23:11:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:11:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-02 23:11:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-02 23:11:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:11:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:11:09,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:11:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:11:09,896 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-02 23:11:11,006 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:11:11,006 INFO L299 CfgBuilder]: Removed 50 assume(true) statements. [2021-11-02 23:11:11,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:11:11 BoogieIcfgContainer [2021-11-02 23:11:11,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:11:11,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:11:11,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:11:11,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:11:11,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:11:09" (1/3) ... [2021-11-02 23:11:11,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0795d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:11:11, skipping insertion in model container [2021-11-02 23:11:11,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:09" (2/3) ... [2021-11-02 23:11:11,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0795d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:11:11, skipping insertion in model container [2021-11-02 23:11:11,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:11:11" (3/3) ... [2021-11-02 23:11:11,022 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult.wvr.c [2021-11-02 23:11:11,028 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-02 23:11:11,029 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:11:11,029 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 23:11:11,029 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-02 23:11:11,069 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,069 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,069 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,070 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,070 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,070 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,070 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,071 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,071 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,071 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,071 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,072 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,072 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,072 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,072 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,072 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,073 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,073 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,073 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,074 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,074 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,074 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,074 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,075 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,075 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,075 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,076 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,076 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,076 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,076 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,076 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,077 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,077 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,077 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,077 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,078 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,078 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,078 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,078 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,079 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,079 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,079 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,079 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,080 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,080 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,080 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,081 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,081 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,081 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,081 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,082 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,082 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,082 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,082 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,083 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,083 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,083 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,083 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,083 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,084 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,084 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,084 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,084 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,085 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,085 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,085 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,085 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,086 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,086 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,086 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,086 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,086 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,087 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,087 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,087 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,088 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,088 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,088 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,089 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,089 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,089 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,089 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,090 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,090 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,090 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,090 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,091 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,091 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,091 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,091 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,091 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,092 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,092 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,092 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,092 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,093 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,093 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,093 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,093 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,094 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,094 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,094 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,094 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,094 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,095 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,095 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,095 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,095 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,099 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,099 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,099 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,100 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,100 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,100 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,100 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,101 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,101 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,101 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,101 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,102 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,102 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,104 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,104 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,104 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,105 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,105 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,105 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,105 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,106 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,107 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,107 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,108 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,108 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,108 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,108 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,109 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,109 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,109 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,109 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,110 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,110 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,110 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,112 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,112 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,113 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,113 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,113 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,113 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,114 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,114 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 23:11:11,122 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-02 23:11:11,172 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:11:11,178 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 [2021-11-02 23:11:11,179 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-02 23:11:11,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 206 places, 211 transitions, 454 flow [2021-11-02 23:11:11,284 INFO L129 PetriNetUnfolder]: 18/207 cut-off events. [2021-11-02 23:11:11,285 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-02 23:11:11,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 207 events. 18/207 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 118 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 171. Up to 2 conditions per place. [2021-11-02 23:11:11,291 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 211 transitions, 454 flow [2021-11-02 23:11:11,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 195 transitions, 414 flow [2021-11-02 23:11:11,380 INFO L129 PetriNetUnfolder]: 18/194 cut-off events. [2021-11-02 23:11:11,381 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-02 23:11:11,381 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-02 23:11:11,382 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] [2021-11-02 23:11:11,383 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-02 23:11:11,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:11,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1764462897, now seen corresponding path program 1 times [2021-11-02 23:11:11,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:11,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415914964] [2021-11-02 23:11:11,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:11,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:11,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:11:11,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:11,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415914964] [2021-11-02 23:11:11,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415914964] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:11,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:11:11,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:11:11,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903830909] [2021-11-02 23:11:11,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 23:11:11,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:11,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 23:11:11,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:11:11,860 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 211 [2021-11-02 23:11:11,865 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 195 transitions, 414 flow. Second operand has 2 states, 2 states have (on average 199.0) internal successors, (398), 2 states have internal predecessors, (398), 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) [2021-11-02 23:11:11,865 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-02 23:11:11,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 211 [2021-11-02 23:11:11,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-02 23:11:11,911 INFO L129 PetriNetUnfolder]: 6/183 cut-off events. [2021-11-02 23:11:11,911 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-02 23:11:11,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 183 events. 6/183 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 104 event pairs, 0 based on Foata normal form. 12/183 useless extension candidates. Maximal degree in co-relation 195. Up to 2 conditions per place. [2021-11-02 23:11:11,915 INFO L132 encePairwiseOnDemand]: 199/211 looper letters, 0 selfloop transitions, 0 changer transitions 6/183 dead transitions. [2021-11-02 23:11:11,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 183 transitions, 390 flow [2021-11-02 23:11:11,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 23:11:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-02 23:11:11,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 408 transitions. [2021-11-02 23:11:11,930 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.966824644549763 [2021-11-02 23:11:11,930 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 408 transitions. [2021-11-02 23:11:11,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 408 transitions. [2021-11-02 23:11:11,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:11:11,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 408 transitions. [2021-11-02 23:11:11,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 204.0) internal successors, (408), 2 states have internal predecessors, (408), 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) [2021-11-02 23:11:11,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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) [2021-11-02 23:11:11,948 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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) [2021-11-02 23:11:11,950 INFO L186 Difference]: Start difference. First operand has 190 places, 195 transitions, 414 flow. Second operand 2 states and 408 transitions. [2021-11-02 23:11:11,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 183 transitions, 390 flow [2021-11-02 23:11:11,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 183 transitions, 374 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-11-02 23:11:11,965 INFO L242 Difference]: Finished difference. Result has 183 places, 177 transitions, 362 flow [2021-11-02 23:11:11,967 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=362, PETRI_PLACES=183, PETRI_TRANSITIONS=177} [2021-11-02 23:11:11,968 INFO L334 CegarLoopForPetriNet]: 190 programPoint places, -7 predicate places. [2021-11-02 23:11:11,969 INFO L470 AbstractCegarLoop]: Abstraction has has 183 places, 177 transitions, 362 flow [2021-11-02 23:11:11,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 199.0) internal successors, (398), 2 states have internal predecessors, (398), 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) [2021-11-02 23:11:11,969 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-02 23:11:11,970 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] [2021-11-02 23:11:11,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:11:11,970 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-02 23:11:11,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:11,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1046642783, now seen corresponding path program 1 times [2021-11-02 23:11:11,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:11,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530233525] [2021-11-02 23:11:11,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:11,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:11:12,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:12,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530233525] [2021-11-02 23:11:12,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530233525] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:12,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:11:12,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 23:11:12,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868798358] [2021-11-02 23:11:12,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 23:11:12,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:12,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:11:12,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:11:12,422 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 211 [2021-11-02 23:11:12,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 177 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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) [2021-11-02 23:11:12,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-02 23:11:12,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 211 [2021-11-02 23:11:12,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-02 23:11:12,567 INFO L129 PetriNetUnfolder]: 11/206 cut-off events. [2021-11-02 23:11:12,567 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-02 23:11:12,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 206 events. 11/206 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 174 event pairs, 0 based on Foata normal form. 1/195 useless extension candidates. Maximal degree in co-relation 246. Up to 21 conditions per place. [2021-11-02 23:11:12,574 INFO L132 encePairwiseOnDemand]: 205/211 looper letters, 26 selfloop transitions, 3 changer transitions 3/182 dead transitions. [2021-11-02 23:11:12,574 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 182 transitions, 436 flow [2021-11-02 23:11:12,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 23:11:12,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-02 23:11:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 858 transitions. [2021-11-02 23:11:12,581 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8132701421800947 [2021-11-02 23:11:12,581 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 858 transitions. [2021-11-02 23:11:12,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 858 transitions. [2021-11-02 23:11:12,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:11:12,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 858 transitions. [2021-11-02 23:11:12,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 171.6) internal successors, (858), 5 states have internal predecessors, (858), 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) [2021-11-02 23:11:12,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 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) [2021-11-02 23:11:12,593 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 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) [2021-11-02 23:11:12,594 INFO L186 Difference]: Start difference. First operand has 183 places, 177 transitions, 362 flow. Second operand 5 states and 858 transitions. [2021-11-02 23:11:12,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 182 transitions, 436 flow [2021-11-02 23:11:12,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 182 transitions, 436 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-02 23:11:12,606 INFO L242 Difference]: Finished difference. Result has 184 places, 179 transitions, 385 flow [2021-11-02 23:11:12,606 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=385, PETRI_PLACES=184, PETRI_TRANSITIONS=179} [2021-11-02 23:11:12,607 INFO L334 CegarLoopForPetriNet]: 190 programPoint places, -6 predicate places. [2021-11-02 23:11:12,607 INFO L470 AbstractCegarLoop]: Abstraction has has 184 places, 179 transitions, 385 flow [2021-11-02 23:11:12,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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) [2021-11-02 23:11:12,608 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-02 23:11:12,609 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] [2021-11-02 23:11:12,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:11:12,610 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-02 23:11:12,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:12,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1218708474, now seen corresponding path program 1 times [2021-11-02 23:11:12,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:12,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268792814] [2021-11-02 23:11:12,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:12,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:11:12,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:12,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268792814] [2021-11-02 23:11:12,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268792814] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:12,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:11:12,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:11:12,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663191185] [2021-11-02 23:11:12,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:11:12,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:12,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:11:12,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:11:12,786 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 211 [2021-11-02 23:11:12,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 179 transitions, 385 flow. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 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) [2021-11-02 23:11:12,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-02 23:11:12,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 211 [2021-11-02 23:11:12,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-02 23:11:12,853 INFO L129 PetriNetUnfolder]: 15/235 cut-off events. [2021-11-02 23:11:12,853 INFO L130 PetriNetUnfolder]: For 7/14 co-relation queries the response was YES. [2021-11-02 23:11:12,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 235 events. 15/235 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 291 event pairs, 0 based on Foata normal form. 2/221 useless extension candidates. Maximal degree in co-relation 273. Up to 16 conditions per place. [2021-11-02 23:11:12,856 INFO L132 encePairwiseOnDemand]: 208/211 looper letters, 9 selfloop transitions, 2 changer transitions 0/181 dead transitions. [2021-11-02 23:11:12,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 181 transitions, 411 flow [2021-11-02 23:11:12,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:11:12,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-02 23:11:12,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2021-11-02 23:11:12,861 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9178515007898894 [2021-11-02 23:11:12,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 581 transitions. [2021-11-02 23:11:12,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 581 transitions. [2021-11-02 23:11:12,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:11:12,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 581 transitions. [2021-11-02 23:11:12,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 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) [2021-11-02 23:11:12,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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) [2021-11-02 23:11:12,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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) [2021-11-02 23:11:12,868 INFO L186 Difference]: Start difference. First operand has 184 places, 179 transitions, 385 flow. Second operand 3 states and 581 transitions. [2021-11-02 23:11:12,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 181 transitions, 411 flow [2021-11-02 23:11:12,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 181 transitions, 404 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-11-02 23:11:12,878 INFO L242 Difference]: Finished difference. Result has 182 places, 180 transitions, 392 flow [2021-11-02 23:11:12,879 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=182, PETRI_TRANSITIONS=180} [2021-11-02 23:11:12,879 INFO L334 CegarLoopForPetriNet]: 190 programPoint places, -8 predicate places. [2021-11-02 23:11:12,880 INFO L470 AbstractCegarLoop]: Abstraction has has 182 places, 180 transitions, 392 flow [2021-11-02 23:11:12,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 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) [2021-11-02 23:11:12,881 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-02 23:11:12,881 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] [2021-11-02 23:11:12,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 23:11:12,882 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-02 23:11:12,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:12,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1337650190, now seen corresponding path program 1 times [2021-11-02 23:11:12,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:12,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163203216] [2021-11-02 23:11:12,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:12,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:13,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:11:13,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:13,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163203216] [2021-11-02 23:11:13,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163203216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:13,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:11:13,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:11:13,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138405962] [2021-11-02 23:11:13,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:11:13,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:13,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:11:13,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:11:13,022 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 211 [2021-11-02 23:11:13,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 180 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 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) [2021-11-02 23:11:13,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-02 23:11:13,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 211 [2021-11-02 23:11:13,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-02 23:11:13,093 INFO L129 PetriNetUnfolder]: 18/269 cut-off events. [2021-11-02 23:11:13,093 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-11-02 23:11:13,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 269 events. 18/269 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 478 event pairs, 0 based on Foata normal form. 2/251 useless extension candidates. Maximal degree in co-relation 314. Up to 19 conditions per place. [2021-11-02 23:11:13,096 INFO L132 encePairwiseOnDemand]: 208/211 looper letters, 9 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2021-11-02 23:11:13,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 418 flow [2021-11-02 23:11:13,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:11:13,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-02 23:11:13,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2021-11-02 23:11:13,104 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9178515007898894 [2021-11-02 23:11:13,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 581 transitions. [2021-11-02 23:11:13,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 581 transitions. [2021-11-02 23:11:13,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:11:13,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 581 transitions. [2021-11-02 23:11:13,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 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) [2021-11-02 23:11:13,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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) [2021-11-02 23:11:13,119 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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) [2021-11-02 23:11:13,119 INFO L186 Difference]: Start difference. First operand has 182 places, 180 transitions, 392 flow. Second operand 3 states and 581 transitions. [2021-11-02 23:11:13,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 418 flow [2021-11-02 23:11:13,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 182 transitions, 416 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-02 23:11:13,124 INFO L242 Difference]: Finished difference. Result has 184 places, 181 transitions, 404 flow [2021-11-02 23:11:13,125 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=184, PETRI_TRANSITIONS=181} [2021-11-02 23:11:13,125 INFO L334 CegarLoopForPetriNet]: 190 programPoint places, -6 predicate places. [2021-11-02 23:11:13,126 INFO L470 AbstractCegarLoop]: Abstraction has has 184 places, 181 transitions, 404 flow [2021-11-02 23:11:13,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 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) [2021-11-02 23:11:13,127 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-02 23:11:13,127 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] [2021-11-02 23:11:13,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 23:11:13,128 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-02 23:11:13,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:13,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2016286085, now seen corresponding path program 1 times [2021-11-02 23:11:13,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:13,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234134467] [2021-11-02 23:11:13,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:13,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:13,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 23:11:13,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:13,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234134467] [2021-11-02 23:11:13,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234134467] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:13,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:11:13,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 23:11:13,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558770818] [2021-11-02 23:11:13,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 23:11:13,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:13,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 23:11:13,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-02 23:11:13,259 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 211 [2021-11-02 23:11:13,261 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 181 transitions, 404 flow. Second operand has 6 states, 6 states have (on average 173.33333333333334) internal successors, (1040), 6 states have internal predecessors, (1040), 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) [2021-11-02 23:11:13,261 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-02 23:11:13,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 211 [2021-11-02 23:11:13,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-02 23:11:13,430 INFO L129 PetriNetUnfolder]: 18/393 cut-off events. [2021-11-02 23:11:13,431 INFO L130 PetriNetUnfolder]: For 23/25 co-relation queries the response was YES. [2021-11-02 23:11:13,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 393 events. 18/393 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1070 event pairs, 0 based on Foata normal form. 1/365 useless extension candidates. Maximal degree in co-relation 491. Up to 21 conditions per place. [2021-11-02 23:11:13,435 INFO L132 encePairwiseOnDemand]: 201/211 looper letters, 36 selfloop transitions, 11 changer transitions 0/198 dead transitions. [2021-11-02 23:11:13,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 198 transitions, 532 flow [2021-11-02 23:11:13,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 23:11:13,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-02 23:11:13,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1576 transitions. [2021-11-02 23:11:13,442 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8299104791995787 [2021-11-02 23:11:13,442 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1576 transitions. [2021-11-02 23:11:13,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1576 transitions. [2021-11-02 23:11:13,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:11:13,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1576 transitions. [2021-11-02 23:11:13,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 175.11111111111111) internal successors, (1576), 9 states have internal predecessors, (1576), 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) [2021-11-02 23:11:13,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 211.0) internal successors, (2110), 10 states have internal predecessors, (2110), 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) [2021-11-02 23:11:13,461 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 211.0) internal successors, (2110), 10 states have internal predecessors, (2110), 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) [2021-11-02 23:11:13,462 INFO L186 Difference]: Start difference. First operand has 184 places, 181 transitions, 404 flow. Second operand 9 states and 1576 transitions. [2021-11-02 23:11:13,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 198 transitions, 532 flow [2021-11-02 23:11:13,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 198 transitions, 530 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-02 23:11:13,468 INFO L242 Difference]: Finished difference. Result has 193 places, 185 transitions, 444 flow [2021-11-02 23:11:13,469 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=444, PETRI_PLACES=193, PETRI_TRANSITIONS=185} [2021-11-02 23:11:13,469 INFO L334 CegarLoopForPetriNet]: 190 programPoint places, 3 predicate places. [2021-11-02 23:11:13,470 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 185 transitions, 444 flow [2021-11-02 23:11:13,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.33333333333334) internal successors, (1040), 6 states have internal predecessors, (1040), 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) [2021-11-02 23:11:13,471 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-02 23:11:13,471 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] [2021-11-02 23:11:13,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 23:11:13,471 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-02 23:11:13,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:13,472 INFO L85 PathProgramCache]: Analyzing trace with hash 992198459, now seen corresponding path program 1 times [2021-11-02 23:11:13,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:13,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211326776] [2021-11-02 23:11:13,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:13,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:13,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:11:13,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:13,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211326776] [2021-11-02 23:11:13,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211326776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:13,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:11:13,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 23:11:13,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457581385] [2021-11-02 23:11:13,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 23:11:13,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:13,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 23:11:13,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-02 23:11:13,577 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 211 [2021-11-02 23:11:13,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 185 transitions, 444 flow. Second operand has 6 states, 6 states have (on average 173.33333333333334) internal successors, (1040), 6 states have internal predecessors, (1040), 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) [2021-11-02 23:11:13,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-02 23:11:13,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 211 [2021-11-02 23:11:13,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-02 23:11:13,781 INFO L129 PetriNetUnfolder]: 21/569 cut-off events. [2021-11-02 23:11:13,781 INFO L130 PetriNetUnfolder]: For 45/48 co-relation queries the response was YES. [2021-11-02 23:11:13,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 569 events. 21/569 cut-off events. For 45/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2287 event pairs, 0 based on Foata normal form. 2/530 useless extension candidates. Maximal degree in co-relation 714. Up to 33 conditions per place. [2021-11-02 23:11:13,786 INFO L132 encePairwiseOnDemand]: 203/211 looper letters, 31 selfloop transitions, 8 changer transitions 0/190 dead transitions. [2021-11-02 23:11:13,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 190 transitions, 532 flow [2021-11-02 23:11:13,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 23:11:13,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-02 23:11:13,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1224 transitions. [2021-11-02 23:11:13,792 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8287068381855112 [2021-11-02 23:11:13,792 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1224 transitions. [2021-11-02 23:11:13,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1224 transitions. [2021-11-02 23:11:13,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:11:13,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1224 transitions. [2021-11-02 23:11:13,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 174.85714285714286) internal successors, (1224), 7 states have internal predecessors, (1224), 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) [2021-11-02 23:11:13,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 211.0) internal successors, (1688), 8 states have internal predecessors, (1688), 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) [2021-11-02 23:11:13,803 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 211.0) internal successors, (1688), 8 states have internal predecessors, (1688), 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) [2021-11-02 23:11:13,803 INFO L186 Difference]: Start difference. First operand has 193 places, 185 transitions, 444 flow. Second operand 7 states and 1224 transitions. [2021-11-02 23:11:13,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 190 transitions, 532 flow [2021-11-02 23:11:13,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 190 transitions, 523 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-02 23:11:13,812 INFO L242 Difference]: Finished difference. Result has 198 places, 187 transitions, 465 flow [2021-11-02 23:11:13,812 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=465, PETRI_PLACES=198, PETRI_TRANSITIONS=187} [2021-11-02 23:11:13,813 INFO L334 CegarLoopForPetriNet]: 190 programPoint places, 8 predicate places. [2021-11-02 23:11:13,813 INFO L470 AbstractCegarLoop]: Abstraction has has 198 places, 187 transitions, 465 flow [2021-11-02 23:11:13,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.33333333333334) internal successors, (1040), 6 states have internal predecessors, (1040), 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) [2021-11-02 23:11:13,814 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-02 23:11:13,814 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] [2021-11-02 23:11:13,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 23:11:13,815 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-02 23:11:13,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:13,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1006098638, now seen corresponding path program 1 times [2021-11-02 23:11:13,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:13,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175174844] [2021-11-02 23:11:13,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:13,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:14,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 23:11:14,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:14,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175174844] [2021-11-02 23:11:14,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175174844] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:11:14,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964113899] [2021-11-02 23:11:14,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:14,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:11:14,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:14,272 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:11:14,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 23:11:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:14,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-02 23:11:14,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:11:15,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 23:11:15,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964113899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:15,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 23:11:15,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2021-11-02 23:11:15,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505719209] [2021-11-02 23:11:15,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 23:11:15,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:15,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 23:11:15,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:11:15,017 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 211 [2021-11-02 23:11:15,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 187 transitions, 465 flow. Second operand has 6 states, 6 states have (on average 156.33333333333334) internal successors, (938), 6 states have internal predecessors, (938), 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) [2021-11-02 23:11:15,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-02 23:11:15,019 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 211 [2021-11-02 23:11:15,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-02 23:11:15,190 INFO L129 PetriNetUnfolder]: 0/148 cut-off events. [2021-11-02 23:11:15,190 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-11-02 23:11:15,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 148 events. 0/148 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 2/146 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2021-11-02 23:11:15,191 INFO L132 encePairwiseOnDemand]: 198/211 looper letters, 0 selfloop transitions, 0 changer transitions 148/148 dead transitions. [2021-11-02 23:11:15,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 148 transitions, 398 flow [2021-11-02 23:11:15,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:11:15,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-11-02 23:11:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1232 transitions. [2021-11-02 23:11:15,196 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7298578199052133 [2021-11-02 23:11:15,196 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1232 transitions. [2021-11-02 23:11:15,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1232 transitions. [2021-11-02 23:11:15,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:11:15,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1232 transitions. [2021-11-02 23:11:15,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 154.0) internal successors, (1232), 8 states have internal predecessors, (1232), 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) [2021-11-02 23:11:15,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 211.0) internal successors, (1899), 9 states have internal predecessors, (1899), 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) [2021-11-02 23:11:15,209 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 211.0) internal successors, (1899), 9 states have internal predecessors, (1899), 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) [2021-11-02 23:11:15,210 INFO L186 Difference]: Start difference. First operand has 198 places, 187 transitions, 465 flow. Second operand 8 states and 1232 transitions. [2021-11-02 23:11:15,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 148 transitions, 398 flow [2021-11-02 23:11:15,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 148 transitions, 368 flow, removed 0 selfloop flow, removed 16 redundant places. [2021-11-02 23:11:15,215 INFO L242 Difference]: Finished difference. Result has 165 places, 0 transitions, 0 flow [2021-11-02 23:11:15,216 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=165, PETRI_TRANSITIONS=0} [2021-11-02 23:11:15,216 INFO L334 CegarLoopForPetriNet]: 190 programPoint places, -25 predicate places. [2021-11-02 23:11:15,216 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 0 transitions, 0 flow [2021-11-02 23:11:15,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.33333333333334) internal successors, (938), 6 states have internal predecessors, (938), 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) [2021-11-02 23:11:15,219 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 23:11:15,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-02 23:11:15,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-02 23:11:15,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-11-02 23:11:15,221 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-11-02 23:11:15,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:11:15,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-02 23:11:15,449 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:11:15,452 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-02 23:11:15,452 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 23:11:15,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:11:15 BasicIcfg [2021-11-02 23:11:15,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 23:11:15,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:11:15,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:11:15,455 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:11:15,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:11:11" (3/4) ... [2021-11-02 23:11:15,459 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-02 23:11:15,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-02 23:11:15,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-02 23:11:15,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-11-02 23:11:15,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2021-11-02 23:11:15,471 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-02 23:11:15,472 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-02 23:11:15,472 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 23:11:15,473 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 23:11:15,528 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 23:11:15,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:11:15,529 INFO L168 Benchmark]: Toolchain (without parser) took 6224.98 ms. Allocated memory was 88.1 MB in the beginning and 134.2 MB in the end (delta: 46.1 MB). Free memory was 50.8 MB in the beginning and 35.2 MB in the end (delta: 15.6 MB). Peak memory consumption was 61.3 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:15,530 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory is still 67.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:11:15,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.44 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 50.6 MB in the beginning and 84.7 MB in the end (delta: -34.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:15,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.38 ms. Allocated memory is still 111.1 MB. Free memory was 84.7 MB in the beginning and 81.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:15,531 INFO L168 Benchmark]: Boogie Preprocessor took 80.74 ms. Allocated memory is still 111.1 MB. Free memory was 81.9 MB in the beginning and 80.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:11:15,531 INFO L168 Benchmark]: RCFGBuilder took 1211.57 ms. Allocated memory is still 111.1 MB. Free memory was 80.3 MB in the beginning and 80.6 MB in the end (delta: -387.8 kB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:15,532 INFO L168 Benchmark]: TraceAbstraction took 4440.07 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 80.3 MB in the beginning and 39.4 MB in the end (delta: 41.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:15,532 INFO L168 Benchmark]: Witness Printer took 72.97 ms. Allocated memory is still 134.2 MB. Free memory was 39.4 MB in the beginning and 35.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:15,540 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory is still 67.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 347.44 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 50.6 MB in the beginning and 84.7 MB in the end (delta: -34.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.38 ms. Allocated memory is still 111.1 MB. Free memory was 84.7 MB in the beginning and 81.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.74 ms. Allocated memory is still 111.1 MB. Free memory was 81.9 MB in the beginning and 80.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1211.57 ms. Allocated memory is still 111.1 MB. Free memory was 80.3 MB in the beginning and 80.6 MB in the end (delta: -387.8 kB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4440.07 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 80.3 MB in the beginning and 39.4 MB in the end (delta: 41.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.1 GB. * Witness Printer took 72.97 ms. Allocated memory is still 134.2 MB. Free memory was 39.4 MB in the beginning and 35.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * 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: 152]: 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 9 procedures, 228 locations, 5 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: 4.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 97 SDtfs, 110 SDslu, 96 SDs, 0 SdLazy, 207 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 210 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=465occurred in iteration=6, InterpolantAutomatonStates: 37, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1240 NumberOfCodeBlocks, 1240 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1232 ConstructedInterpolants, 0 QuantifiedInterpolants, 3172 SizeOfPredicates, 4 NumberOfNonLiveVariables, 414 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 11/12 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! [2021-11-02 23:11:15,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f1e01c-1787-4fad-9497-15991cab08e5/bin/uautomizer-tBqnrhUYjU/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