./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bdbcb1f6d336419408bc21eb9ac3a89d4566c9a0348f626a712e605b31e52535 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 16:42:11,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 16:42:11,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 16:42:11,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 16:42:11,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 16:42:11,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 16:42:11,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 16:42:11,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 16:42:11,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 16:42:11,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 16:42:11,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 16:42:11,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 16:42:11,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 16:42:11,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 16:42:11,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 16:42:11,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 16:42:11,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 16:42:11,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 16:42:11,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 16:42:11,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 16:42:11,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 16:42:11,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 16:42:11,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 16:42:11,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 16:42:11,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 16:42:11,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 16:42:11,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 16:42:11,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 16:42:11,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 16:42:11,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 16:42:11,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 16:42:11,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 16:42:11,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 16:42:11,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 16:42:11,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 16:42:11,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 16:42:11,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 16:42:11,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 16:42:11,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 16:42:11,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 16:42:11,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 16:42:11,974 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 16:42:11,998 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 16:42:11,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 16:42:11,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 16:42:11,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 16:42:12,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 16:42:12,000 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 16:42:12,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 16:42:12,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 16:42:12,001 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 16:42:12,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 16:42:12,002 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 16:42:12,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 16:42:12,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 16:42:12,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 16:42:12,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 16:42:12,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 16:42:12,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 16:42:12,003 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 16:42:12,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 16:42:12,004 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 16:42:12,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 16:42:12,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 16:42:12,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 16:42:12,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 16:42:12,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:42:12,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 16:42:12,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 16:42:12,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 16:42:12,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 16:42:12,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 16:42:12,006 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 16:42:12,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 16:42:12,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 16:42:12,007 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 16:42:12,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdbcb1f6d336419408bc21eb9ac3a89d4566c9a0348f626a712e605b31e52535 [2021-12-14 16:42:12,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 16:42:12,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 16:42:12,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 16:42:12,226 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 16:42:12,227 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 16:42:12,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i [2021-12-14 16:42:12,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958f209b8/719d1911b87e4a9eb888163ed7f3ed47/FLAG04f24a0c6 [2021-12-14 16:42:12,636 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 16:42:12,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i [2021-12-14 16:42:12,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958f209b8/719d1911b87e4a9eb888163ed7f3ed47/FLAG04f24a0c6 [2021-12-14 16:42:13,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/958f209b8/719d1911b87e4a9eb888163ed7f3ed47 [2021-12-14 16:42:13,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 16:42:13,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 16:42:13,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 16:42:13,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 16:42:13,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 16:42:13,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:42:13" (1/1) ... [2021-12-14 16:42:13,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ddccde7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13, skipping insertion in model container [2021-12-14 16:42:13,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:42:13" (1/1) ... [2021-12-14 16:42:13,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 16:42:13,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 16:42:13,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108] [2021-12-14 16:42:13,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:42:13,480 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 16:42:13,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108] [2021-12-14 16:42:13,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:42:13,545 INFO L208 MainTranslator]: Completed translation [2021-12-14 16:42:13,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13 WrapperNode [2021-12-14 16:42:13,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 16:42:13,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 16:42:13,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 16:42:13,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 16:42:13,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ... [2021-12-14 16:42:13,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ... [2021-12-14 16:42:13,595 INFO L137 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2021-12-14 16:42:13,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 16:42:13,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 16:42:13,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 16:42:13,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 16:42:13,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ... [2021-12-14 16:42:13,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ... [2021-12-14 16:42:13,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ... [2021-12-14 16:42:13,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ... [2021-12-14 16:42:13,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ... [2021-12-14 16:42:13,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ... [2021-12-14 16:42:13,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ... [2021-12-14 16:42:13,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 16:42:13,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 16:42:13,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 16:42:13,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 16:42:13,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (1/1) ... [2021-12-14 16:42:13,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:42:13,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:42:13,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 16:42:13,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 16:42:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 16:42:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 16:42:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-14 16:42:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 16:42:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 16:42:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-14 16:42:13,702 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-14 16:42:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 16:42:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 16:42:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 16:42:13,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 16:42:13,704 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-14 16:42:13,782 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 16:42:13,783 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 16:42:13,888 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 16:42:13,893 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 16:42:13,893 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 16:42:13,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:42:13 BoogieIcfgContainer [2021-12-14 16:42:13,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 16:42:13,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 16:42:13,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 16:42:13,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 16:42:13,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:42:13" (1/3) ... [2021-12-14 16:42:13,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afa087e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:42:13, skipping insertion in model container [2021-12-14 16:42:13,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:42:13" (2/3) ... [2021-12-14 16:42:13,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afa087e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:42:13, skipping insertion in model container [2021-12-14 16:42:13,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:42:13" (3/3) ... [2021-12-14 16:42:13,915 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_20-publish-regression_true.i [2021-12-14 16:42:13,918 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-14 16:42:13,918 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 16:42:13,919 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-14 16:42:13,919 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-14 16:42:13,936 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,943 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,944 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,946 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,947 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,948 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:42:13,951 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-14 16:42:13,983 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 16:42:13,988 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 16:42:13,988 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-12-14 16:42:13,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 91 transitions, 190 flow [2021-12-14 16:42:14,032 INFO L129 PetriNetUnfolder]: 3/90 cut-off events. [2021-12-14 16:42:14,033 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-14 16:42:14,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 3/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2021-12-14 16:42:14,036 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 91 transitions, 190 flow [2021-12-14 16:42:14,045 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 82 transitions, 167 flow [2021-12-14 16:42:14,054 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-12-14 16:42:14,061 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-14 16:42:14,061 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:42:14,062 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] [2021-12-14 16:42:14,062 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-12-14 16:42:14,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:42:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash -547127912, now seen corresponding path program 1 times [2021-12-14 16:42:14,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:42:14,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145357201] [2021-12-14 16:42:14,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:42:14,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:42:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:42:14,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:42:14,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:42:14,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145357201] [2021-12-14 16:42:14,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145357201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:42:14,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:42:14,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 16:42:14,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683781275] [2021-12-14 16:42:14,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:42:14,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 16:42:14,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:42:14,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 16:42:14,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 16:42:14,407 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 91 [2021-12-14 16:42:14,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 82 transitions, 167 flow. Second operand has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:42:14,415 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 91 [2021-12-14 16:42:14,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:42:14,534 INFO L129 PetriNetUnfolder]: 19/179 cut-off events. [2021-12-14 16:42:14,536 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-14 16:42:14,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 179 events. 19/179 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 632 event pairs, 3 based on Foata normal form. 13/185 useless extension candidates. Maximal degree in co-relation 194. Up to 13 conditions per place. [2021-12-14 16:42:14,539 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 14 selfloop transitions, 15 changer transitions 3/92 dead transitions. [2021-12-14 16:42:14,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 92 transitions, 251 flow [2021-12-14 16:42:14,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 16:42:14,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-14 16:42:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 662 transitions. [2021-12-14 16:42:14,559 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8083028083028083 [2021-12-14 16:42:14,565 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 662 transitions. [2021-12-14 16:42:14,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 662 transitions. [2021-12-14 16:42:14,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:42:14,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 662 transitions. [2021-12-14 16:42:14,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.55555555555556) internal successors, (662), 9 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,583 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,584 INFO L186 Difference]: Start difference. First operand has 83 places, 82 transitions, 167 flow. Second operand 9 states and 662 transitions. [2021-12-14 16:42:14,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 92 transitions, 251 flow [2021-12-14 16:42:14,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 92 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-14 16:42:14,589 INFO L242 Difference]: Finished difference. Result has 91 places, 83 transitions, 236 flow [2021-12-14 16:42:14,590 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=236, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2021-12-14 16:42:14,593 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 8 predicate places. [2021-12-14 16:42:14,593 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 236 flow [2021-12-14 16:42:14,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,593 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:42:14,594 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] [2021-12-14 16:42:14,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 16:42:14,594 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-12-14 16:42:14,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:42:14,595 INFO L85 PathProgramCache]: Analyzing trace with hash -875946487, now seen corresponding path program 1 times [2021-12-14 16:42:14,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:42:14,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436273813] [2021-12-14 16:42:14,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:42:14,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:42:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:42:14,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:42:14,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:42:14,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436273813] [2021-12-14 16:42:14,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436273813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:42:14,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:42:14,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 16:42:14,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259374017] [2021-12-14 16:42:14,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:42:14,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 16:42:14,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:42:14,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 16:42:14,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 16:42:14,654 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2021-12-14 16:42:14,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:42:14,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2021-12-14 16:42:14,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:42:14,710 INFO L129 PetriNetUnfolder]: 7/122 cut-off events. [2021-12-14 16:42:14,710 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2021-12-14 16:42:14,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 122 events. 7/122 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 268 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 173. Up to 10 conditions per place. [2021-12-14 16:42:14,711 INFO L132 encePairwiseOnDemand]: 86/91 looper letters, 8 selfloop transitions, 5 changer transitions 11/83 dead transitions. [2021-12-14 16:42:14,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 83 transitions, 272 flow [2021-12-14 16:42:14,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:42:14,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-14 16:42:14,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 452 transitions. [2021-12-14 16:42:14,712 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8278388278388278 [2021-12-14 16:42:14,712 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 452 transitions. [2021-12-14 16:42:14,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 452 transitions. [2021-12-14 16:42:14,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:42:14,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 452 transitions. [2021-12-14 16:42:14,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.33333333333333) internal successors, (452), 6 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,716 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,716 INFO L186 Difference]: Start difference. First operand has 91 places, 83 transitions, 236 flow. Second operand 6 states and 452 transitions. [2021-12-14 16:42:14,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 83 transitions, 272 flow [2021-12-14 16:42:14,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 83 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-14 16:42:14,722 INFO L242 Difference]: Finished difference. Result has 93 places, 70 transitions, 187 flow [2021-12-14 16:42:14,722 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=187, PETRI_PLACES=93, PETRI_TRANSITIONS=70} [2021-12-14 16:42:14,723 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 10 predicate places. [2021-12-14 16:42:14,723 INFO L470 AbstractCegarLoop]: Abstraction has has 93 places, 70 transitions, 187 flow [2021-12-14 16:42:14,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,723 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:42:14,723 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] [2021-12-14 16:42:14,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 16:42:14,724 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-12-14 16:42:14,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:42:14,724 INFO L85 PathProgramCache]: Analyzing trace with hash -17853359, now seen corresponding path program 1 times [2021-12-14 16:42:14,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:42:14,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782266914] [2021-12-14 16:42:14,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:42:14,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:42:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:42:14,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:42:14,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:42:14,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782266914] [2021-12-14 16:42:14,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782266914] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:42:14,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:42:14,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 16:42:14,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289104422] [2021-12-14 16:42:14,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:42:14,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 16:42:14,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:42:14,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 16:42:14,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 16:42:14,768 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 91 [2021-12-14 16:42:14,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 70 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,768 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:42:14,768 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 91 [2021-12-14 16:42:14,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:42:14,789 INFO L129 PetriNetUnfolder]: 2/86 cut-off events. [2021-12-14 16:42:14,790 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-12-14 16:42:14,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 86 events. 2/86 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 3/89 useless extension candidates. Maximal degree in co-relation 121. Up to 14 conditions per place. [2021-12-14 16:42:14,790 INFO L132 encePairwiseOnDemand]: 87/91 looper letters, 11 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2021-12-14 16:42:14,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 71 transitions, 219 flow [2021-12-14 16:42:14,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 16:42:14,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-14 16:42:14,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2021-12-14 16:42:14,792 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2021-12-14 16:42:14,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2021-12-14 16:42:14,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2021-12-14 16:42:14,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:42:14,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2021-12-14 16:42:14,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,794 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,794 INFO L186 Difference]: Start difference. First operand has 93 places, 70 transitions, 187 flow. Second operand 3 states and 224 transitions. [2021-12-14 16:42:14,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 71 transitions, 219 flow [2021-12-14 16:42:14,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 71 transitions, 183 flow, removed 4 selfloop flow, removed 13 redundant places. [2021-12-14 16:42:14,796 INFO L242 Difference]: Finished difference. Result has 77 places, 70 transitions, 159 flow [2021-12-14 16:42:14,796 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=77, PETRI_TRANSITIONS=70} [2021-12-14 16:42:14,797 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, -6 predicate places. [2021-12-14 16:42:14,797 INFO L470 AbstractCegarLoop]: Abstraction has has 77 places, 70 transitions, 159 flow [2021-12-14 16:42:14,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,797 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:42:14,797 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] [2021-12-14 16:42:14,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 16:42:14,798 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-12-14 16:42:14,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:42:14,798 INFO L85 PathProgramCache]: Analyzing trace with hash 124463274, now seen corresponding path program 1 times [2021-12-14 16:42:14,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:42:14,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738882103] [2021-12-14 16:42:14,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:42:14,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:42:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:42:14,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:42:14,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:42:14,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738882103] [2021-12-14 16:42:14,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738882103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:42:14,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:42:14,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 16:42:14,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308977934] [2021-12-14 16:42:14,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:42:14,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:42:14,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:42:14,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:42:14,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 16:42:14,882 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 91 [2021-12-14 16:42:14,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 70 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:42:14,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 91 [2021-12-14 16:42:14,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:42:14,918 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-12-14 16:42:14,919 INFO L130 PetriNetUnfolder]: For 4/5 co-relation queries the response was YES. [2021-12-14 16:42:14,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 58 events. 0/58 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 3/61 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-12-14 16:42:14,919 INFO L132 encePairwiseOnDemand]: 87/91 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2021-12-14 16:42:14,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 58 transitions, 162 flow [2021-12-14 16:42:14,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 16:42:14,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-14 16:42:14,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 334 transitions. [2021-12-14 16:42:14,921 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.734065934065934 [2021-12-14 16:42:14,921 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 334 transitions. [2021-12-14 16:42:14,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 334 transitions. [2021-12-14 16:42:14,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:42:14,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 334 transitions. [2021-12-14 16:42:14,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,923 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,923 INFO L186 Difference]: Start difference. First operand has 77 places, 70 transitions, 159 flow. Second operand 5 states and 334 transitions. [2021-12-14 16:42:14,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 58 transitions, 162 flow [2021-12-14 16:42:14,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 58 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-14 16:42:14,924 INFO L242 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2021-12-14 16:42:14,924 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2021-12-14 16:42:14,925 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, -16 predicate places. [2021-12-14 16:42:14,925 INFO L470 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2021-12-14 16:42:14,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 16:42:14,927 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-12-14 16:42:14,928 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-12-14 16:42:14,928 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2021-12-14 16:42:14,928 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-12-14 16:42:14,928 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-12-14 16:42:14,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 16:42:14,931 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-14 16:42:14,933 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-14 16:42:14,933 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 16:42:14,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:42:14 BasicIcfg [2021-12-14 16:42:14,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 16:42:14,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 16:42:14,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 16:42:14,936 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 16:42:14,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:42:13" (3/4) ... [2021-12-14 16:42:14,938 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-14 16:42:14,942 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-12-14 16:42:14,944 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-12-14 16:42:14,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-14 16:42:14,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-14 16:42:14,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-14 16:42:14,965 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 16:42:14,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 16:42:14,966 INFO L158 Benchmark]: Toolchain (without parser) took 1949.41ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 88.8MB in the beginning and 94.1MB in the end (delta: -5.3MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2021-12-14 16:42:14,966 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 16:42:14,966 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.17ms. Allocated memory is still 115.3MB. Free memory was 88.8MB in the beginning and 82.5MB in the end (delta: 6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 16:42:14,967 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.22ms. Allocated memory is still 115.3MB. Free memory was 82.5MB in the beginning and 80.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 16:42:14,967 INFO L158 Benchmark]: Boogie Preprocessor took 35.14ms. Allocated memory is still 115.3MB. Free memory was 80.5MB in the beginning and 79.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 16:42:14,967 INFO L158 Benchmark]: RCFGBuilder took 263.12ms. Allocated memory is still 115.3MB. Free memory was 79.0MB in the beginning and 67.1MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 16:42:14,968 INFO L158 Benchmark]: TraceAbstraction took 1040.25ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 66.6MB in the beginning and 96.2MB in the end (delta: -29.5MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2021-12-14 16:42:14,968 INFO L158 Benchmark]: Witness Printer took 29.17ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 94.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 16:42:14,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.17ms. Allocated memory is still 115.3MB. Free memory was 88.8MB in the beginning and 82.5MB in the end (delta: 6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.22ms. Allocated memory is still 115.3MB. Free memory was 82.5MB in the beginning and 80.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.14ms. Allocated memory is still 115.3MB. Free memory was 80.5MB in the beginning and 79.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 263.12ms. Allocated memory is still 115.3MB. Free memory was 79.0MB in the beginning and 67.1MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1040.25ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 66.6MB in the beginning and 96.2MB in the end (delta: -29.5MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Witness Printer took 29.17ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 94.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 3 procedures, 114 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: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 26 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=1, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 452 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-14 16:42:15,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE