./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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_19-publish-precision_unknown_1_pos.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 f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 02:55:33,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 02:55:33,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 02:55:33,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 02:55:33,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 02:55:33,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 02:55:33,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 02:55:33,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 02:55:33,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 02:55:33,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 02:55:33,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 02:55:33,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 02:55:33,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 02:55:33,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 02:55:33,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 02:55:33,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 02:55:33,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 02:55:33,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 02:55:33,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 02:55:33,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 02:55:33,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 02:55:33,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 02:55:33,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 02:55:33,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 02:55:33,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 02:55:33,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 02:55:33,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 02:55:33,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 02:55:33,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 02:55:33,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 02:55:33,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 02:55:33,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 02:55:33,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 02:55:33,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 02:55:33,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 02:55:33,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 02:55:33,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 02:55:33,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 02:55:33,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 02:55:33,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 02:55:33,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 02:55:33,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 02:55:33,808 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 02:55:33,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 02:55:33,810 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 02:55:33,810 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 02:55:33,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 02:55:33,811 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 02:55:33,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 02:55:33,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 02:55:33,812 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 02:55:33,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 02:55:33,813 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 02:55:33,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 02:55:33,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 02:55:33,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 02:55:33,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 02:55:33,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 02:55:33,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 02:55:33,814 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 02:55:33,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 02:55:33,815 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 02:55:33,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 02:55:33,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 02:55:33,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 02:55:33,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 02:55:33,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 02:55:33,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 02:55:33,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 02:55:33,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 02:55:33,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 02:55:33,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 02:55:33,817 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 02:55:33,817 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 02:55:33,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 02:55:33,817 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc [2021-12-28 02:55:34,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 02:55:34,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 02:55:34,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 02:55:34,146 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 02:55:34,147 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 02:55:34,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2021-12-28 02:55:34,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f23c83e/9e6a59595bbe4c0daac21bd6bd3fe973/FLAGdcfbd9872 [2021-12-28 02:55:34,773 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 02:55:34,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2021-12-28 02:55:34,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f23c83e/9e6a59595bbe4c0daac21bd6bd3fe973/FLAGdcfbd9872 [2021-12-28 02:55:35,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f23c83e/9e6a59595bbe4c0daac21bd6bd3fe973 [2021-12-28 02:55:35,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 02:55:35,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 02:55:35,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 02:55:35,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 02:55:35,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 02:55:35,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:55:35" (1/1) ... [2021-12-28 02:55:35,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b73ce57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35, skipping insertion in model container [2021-12-28 02:55:35,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:55:35" (1/1) ... [2021-12-28 02:55:35,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 02:55:35,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 02:55:35,437 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_19-publish-precision_unknown_1_pos.i[1103,1116] [2021-12-28 02:55:35,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 02:55:35,641 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 02:55:35,653 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_19-publish-precision_unknown_1_pos.i[1103,1116] [2021-12-28 02:55:35,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 02:55:35,732 INFO L208 MainTranslator]: Completed translation [2021-12-28 02:55:35,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35 WrapperNode [2021-12-28 02:55:35,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 02:55:35,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 02:55:35,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 02:55:35,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 02:55:35,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35" (1/1) ... [2021-12-28 02:55:35,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35" (1/1) ... [2021-12-28 02:55:35,795 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2021-12-28 02:55:35,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 02:55:35,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 02:55:35,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 02:55:35,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 02:55:35,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35" (1/1) ... [2021-12-28 02:55:35,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35" (1/1) ... [2021-12-28 02:55:35,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35" (1/1) ... [2021-12-28 02:55:35,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35" (1/1) ... [2021-12-28 02:55:35,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35" (1/1) ... [2021-12-28 02:55:35,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35" (1/1) ... [2021-12-28 02:55:35,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35" (1/1) ... [2021-12-28 02:55:35,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 02:55:35,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 02:55:35,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 02:55:35,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 02:55:35,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35" (1/1) ... [2021-12-28 02:55:35,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 02:55:35,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 02:55:35,865 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) [2021-12-28 02:55:35,884 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 [2021-12-28 02:55:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 02:55:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 02:55:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-28 02:55:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 02:55:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 02:55:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-28 02:55:35,913 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-28 02:55:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 02:55:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 02:55:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 02:55:35,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 02:55:35,916 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-28 02:55:36,072 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 02:55:36,074 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 02:55:36,258 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 02:55:36,267 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 02:55:36,267 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 02:55:36,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:55:36 BoogieIcfgContainer [2021-12-28 02:55:36,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 02:55:36,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 02:55:36,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 02:55:36,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 02:55:36,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 02:55:35" (1/3) ... [2021-12-28 02:55:36,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f183b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:55:36, skipping insertion in model container [2021-12-28 02:55:36,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:55:35" (2/3) ... [2021-12-28 02:55:36,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f183b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:55:36, skipping insertion in model container [2021-12-28 02:55:36,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:55:36" (3/3) ... [2021-12-28 02:55:36,278 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2021-12-28 02:55:36,284 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-28 02:55:36,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 02:55:36,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 02:55:36,285 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-28 02:55:36,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,330 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,330 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,330 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,333 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,333 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,333 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,333 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,337 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,338 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,339 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,339 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,340 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,341 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,341 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,343 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,349 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,350 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:55:36,355 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-28 02:55:36,410 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 02:55:36,419 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 [2021-12-28 02:55:36,420 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-28 02:55:36,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 150 flow [2021-12-28 02:55:36,485 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2021-12-28 02:55:36,485 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-28 02:55:36,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 1/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2021-12-28 02:55:36,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 150 flow [2021-12-28 02:55:36,496 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 56 transitions, 115 flow [2021-12-28 02:55:36,521 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-12-28 02:55:36,521 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-28 02:55:36,522 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:36,523 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] [2021-12-28 02:55:36,523 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:55:36,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:36,528 INFO L85 PathProgramCache]: Analyzing trace with hash -881270525, now seen corresponding path program 1 times [2021-12-28 02:55:36,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:36,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505810571] [2021-12-28 02:55:36,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:36,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:55:36,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:55:36,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:55:36,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505810571] [2021-12-28 02:55:36,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505810571] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:55:36,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:55:36,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 02:55:36,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743387122] [2021-12-28 02:55:36,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:55:36,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 02:55:36,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:55:36,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 02:55:36,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 02:55:36,942 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 71 [2021-12-28 02:55:36,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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) [2021-12-28 02:55:36,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:55:36,953 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 71 [2021-12-28 02:55:36,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:55:37,047 INFO L129 PetriNetUnfolder]: 8/99 cut-off events. [2021-12-28 02:55:37,049 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-28 02:55:37,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 99 events. 8/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 200 event pairs, 0 based on Foata normal form. 3/102 useless extension candidates. Maximal degree in co-relation 94. Up to 10 conditions per place. [2021-12-28 02:55:37,051 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 8 selfloop transitions, 3 changer transitions 9/68 dead transitions. [2021-12-28 02:55:37,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 68 transitions, 179 flow [2021-12-28 02:55:37,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 02:55:37,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-28 02:55:37,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 435 transitions. [2021-12-28 02:55:37,071 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8752515090543259 [2021-12-28 02:55:37,072 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 435 transitions. [2021-12-28 02:55:37,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 435 transitions. [2021-12-28 02:55:37,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:55:37,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 435 transitions. [2021-12-28 02:55:37,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 62.142857142857146) internal successors, (435), 7 states have internal predecessors, (435), 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) [2021-12-28 02:55:37,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-12-28 02:55:37,097 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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) [2021-12-28 02:55:37,099 INFO L186 Difference]: Start difference. First operand has 60 places, 56 transitions, 115 flow. Second operand 7 states and 435 transitions. [2021-12-28 02:55:37,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 68 transitions, 179 flow [2021-12-28 02:55:37,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-28 02:55:37,109 INFO L242 Difference]: Finished difference. Result has 70 places, 56 transitions, 133 flow [2021-12-28 02:55:37,110 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=133, PETRI_PLACES=70, PETRI_TRANSITIONS=56} [2021-12-28 02:55:37,116 INFO L334 CegarLoopForPetriNet]: 60 programPoint places, 10 predicate places. [2021-12-28 02:55:37,117 INFO L470 AbstractCegarLoop]: Abstraction has has 70 places, 56 transitions, 133 flow [2021-12-28 02:55:37,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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) [2021-12-28 02:55:37,123 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:37,123 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] [2021-12-28 02:55:37,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 02:55:37,124 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:55:37,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:37,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1191502746, now seen corresponding path program 1 times [2021-12-28 02:55:37,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:37,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969350800] [2021-12-28 02:55:37,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:37,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:55:37,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:55:37,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:55:37,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969350800] [2021-12-28 02:55:37,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969350800] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:55:37,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:55:37,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 02:55:37,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491868491] [2021-12-28 02:55:37,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:55:37,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 02:55:37,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:55:37,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 02:55:37,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 02:55:37,249 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 71 [2021-12-28 02:55:37,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 56 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2021-12-28 02:55:37,250 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:55:37,250 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 71 [2021-12-28 02:55:37,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:55:37,322 INFO L129 PetriNetUnfolder]: 1/72 cut-off events. [2021-12-28 02:55:37,323 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-28 02:55:37,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 72 events. 1/72 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 4/76 useless extension candidates. Maximal degree in co-relation 99. Up to 13 conditions per place. [2021-12-28 02:55:37,325 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 8 selfloop transitions, 3 changer transitions 9/58 dead transitions. [2021-12-28 02:55:37,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 169 flow [2021-12-28 02:55:37,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 02:55:37,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-28 02:55:37,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2021-12-28 02:55:37,326 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8356807511737089 [2021-12-28 02:55:37,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2021-12-28 02:55:37,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2021-12-28 02:55:37,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:55:37,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2021-12-28 02:55:37,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2021-12-28 02:55:37,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2021-12-28 02:55:37,329 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2021-12-28 02:55:37,330 INFO L186 Difference]: Start difference. First operand has 70 places, 56 transitions, 133 flow. Second operand 3 states and 178 transitions. [2021-12-28 02:55:37,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 169 flow [2021-12-28 02:55:37,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 155 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-12-28 02:55:37,332 INFO L242 Difference]: Finished difference. Result has 62 places, 49 transitions, 110 flow [2021-12-28 02:55:37,333 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=62, PETRI_TRANSITIONS=49} [2021-12-28 02:55:37,333 INFO L334 CegarLoopForPetriNet]: 60 programPoint places, 2 predicate places. [2021-12-28 02:55:37,334 INFO L470 AbstractCegarLoop]: Abstraction has has 62 places, 49 transitions, 110 flow [2021-12-28 02:55:37,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2021-12-28 02:55:37,334 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:55:37,334 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] [2021-12-28 02:55:37,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 02:55:37,335 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:55:37,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:55:37,337 INFO L85 PathProgramCache]: Analyzing trace with hash 576623755, now seen corresponding path program 1 times [2021-12-28 02:55:37,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:55:37,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914183024] [2021-12-28 02:55:37,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:55:37,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:55:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 02:55:37,396 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 02:55:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 02:55:37,443 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 02:55:37,444 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-28 02:55:37,445 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-28 02:55:37,447 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-12-28 02:55:37,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 02:55:37,451 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-28 02:55:37,455 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-28 02:55:37,456 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 02:55:37,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 02:55:37 BasicIcfg [2021-12-28 02:55:37,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 02:55:37,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 02:55:37,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 02:55:37,508 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 02:55:37,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:55:36" (3/4) ... [2021-12-28 02:55:37,510 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-28 02:55:37,558 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 02:55:37,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 02:55:37,560 INFO L158 Benchmark]: Toolchain (without parser) took 2348.74ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 42.3MB in the beginning and 38.5MB in the end (delta: 3.8MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2021-12-28 02:55:37,560 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 02:55:37,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.21ms. Allocated memory is still 62.9MB. Free memory was 42.1MB in the beginning and 37.8MB in the end (delta: 4.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-28 02:55:37,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.78ms. Allocated memory is still 62.9MB. Free memory was 37.6MB in the beginning and 35.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 02:55:37,563 INFO L158 Benchmark]: Boogie Preprocessor took 34.47ms. Allocated memory is still 62.9MB. Free memory was 35.7MB in the beginning and 34.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 02:55:37,564 INFO L158 Benchmark]: RCFGBuilder took 439.11ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 34.4MB in the beginning and 58.6MB in the end (delta: -24.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-28 02:55:37,564 INFO L158 Benchmark]: TraceAbstraction took 1234.83ms. Allocated memory is still 81.8MB. Free memory was 58.3MB in the beginning and 42.7MB in the end (delta: 15.6MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-12-28 02:55:37,564 INFO L158 Benchmark]: Witness Printer took 51.51ms. Allocated memory is still 81.8MB. Free memory was 42.2MB in the beginning and 38.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 02:55:37,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.21ms. Allocated memory is still 62.9MB. Free memory was 42.1MB in the beginning and 37.8MB in the end (delta: 4.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.78ms. Allocated memory is still 62.9MB. Free memory was 37.6MB in the beginning and 35.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.47ms. Allocated memory is still 62.9MB. Free memory was 35.7MB in the beginning and 34.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.11ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 34.4MB in the beginning and 58.6MB in the end (delta: -24.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1234.83ms. Allocated memory is still 81.8MB. Free memory was 58.3MB in the beginning and 42.7MB in the end (delta: 15.6MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Witness Printer took 51.51ms. Allocated memory is still 81.8MB. Free memory was 42.2MB in the beginning and 38.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; VAL [glob1=0] [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}] [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}, mutex2={4:0}] [L696] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 2 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: 3, 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, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 21 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=1, InterpolantAutomatonStates: 10, 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, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be incorrect! [2021-12-28 02:55:37,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE