./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD --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 9dc7b14dd459d661c8365478ed96264e3b20fdbfc6cdd45765e7331a8497bc1f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:49:27,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:49:27,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:49:27,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:49:27,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:49:27,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:49:27,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:49:27,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:49:27,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:49:27,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:49:27,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:49:27,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:49:27,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:49:27,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:49:27,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:49:27,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:49:27,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:49:27,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:49:27,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:49:27,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:49:27,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:49:27,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:49:27,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:49:27,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:49:27,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:49:27,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:49:27,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:49:27,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:49:27,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:49:27,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:49:27,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:49:27,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:49:27,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:49:27,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:49:27,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:49:27,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:49:27,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:49:27,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:49:27,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:49:27,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:49:27,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:49:27,796 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:49:27,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:49:27,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:49:27,828 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:49:27,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:49:27,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:49:27,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:49:27,830 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:49:27,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:49:27,830 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:49:27,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:49:27,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:49:27,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:49:27,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:49:27,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:49:27,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:49:27,832 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:49:27,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:49:27,832 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:49:27,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:49:27,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:49:27,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:49:27,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:49:27,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:49:27,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:49:27,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:49:27,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:49:27,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:49:27,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:49:27,835 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:49:27,835 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:49:27,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:49:27,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:49:27,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9dc7b14dd459d661c8365478ed96264e3b20fdbfc6cdd45765e7331a8497bc1f [2021-10-28 23:49:28,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:49:28,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:49:28,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:49:28,230 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:49:28,231 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:49:28,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2021-10-28 23:49:28,326 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/data/9047cb9b7/5d5ce58b4e0a47a8b73906133c7db201/FLAGaad067858 [2021-10-28 23:49:28,937 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:49:28,938 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/sv-benchmarks/c/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2021-10-28 23:49:28,973 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/data/9047cb9b7/5d5ce58b4e0a47a8b73906133c7db201/FLAGaad067858 [2021-10-28 23:49:29,183 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/data/9047cb9b7/5d5ce58b4e0a47a8b73906133c7db201 [2021-10-28 23:49:29,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:49:29,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:49:29,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:49:29,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:49:29,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:49:29,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:49:29" (1/1) ... [2021-10-28 23:49:29,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ba7dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29, skipping insertion in model container [2021-10-28 23:49:29,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:49:29" (1/1) ... [2021-10-28 23:49:29,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:49:29,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:49:29,557 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/sv-benchmarks/c/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i[845,858] [2021-10-28 23:49:29,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:49:29,854 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:49:29,872 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/sv-benchmarks/c/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i[845,858] [2021-10-28 23:49:29,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:49:29,998 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:49:29,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29 WrapperNode [2021-10-28 23:49:29,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:49:30,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:49:30,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:49:30,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:49:30,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29" (1/1) ... [2021-10-28 23:49:30,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29" (1/1) ... [2021-10-28 23:49:30,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:49:30,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:49:30,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:49:30,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:49:30,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29" (1/1) ... [2021-10-28 23:49:30,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29" (1/1) ... [2021-10-28 23:49:30,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29" (1/1) ... [2021-10-28 23:49:30,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29" (1/1) ... [2021-10-28 23:49:30,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29" (1/1) ... [2021-10-28 23:49:30,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29" (1/1) ... [2021-10-28 23:49:30,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29" (1/1) ... [2021-10-28 23:49:30,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:49:30,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:49:30,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:49:30,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:49:30,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29" (1/1) ... [2021-10-28 23:49:30,142 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:49:30,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:30,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:30,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:49:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:49:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-28 23:49:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:49:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-28 23:49:30,224 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-28 23:49:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:49:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:49:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:49:30,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:49:30,227 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 23:49:30,667 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:49:30,667 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 23:49:30,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:49:30 BoogieIcfgContainer [2021-10-28 23:49:30,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:49:30,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:49:30,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:49:30,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:49:30,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:49:29" (1/3) ... [2021-10-28 23:49:30,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c19aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:49:30, skipping insertion in model container [2021-10-28 23:49:30,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:29" (2/3) ... [2021-10-28 23:49:30,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c19aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:49:30, skipping insertion in model container [2021-10-28 23:49:30,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:49:30" (3/3) ... [2021-10-28 23:49:30,684 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2021-10-28 23:49:30,693 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:49:30,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:49:30,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:49:30,694 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:49:30,760 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,760 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,760 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,760 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,761 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,761 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,761 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,762 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,762 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,762 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,763 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,763 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,764 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,764 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,764 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,765 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,765 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,775 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,776 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,776 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,777 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,777 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,777 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,778 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,778 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,782 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,782 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,782 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,782 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,783 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,783 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,783 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,783 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:49:30,798 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-28 23:49:30,853 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:49:30,865 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 [2021-10-28 23:49:30,865 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 23:49:30,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 167 flow [2021-10-28 23:49:30,943 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2021-10-28 23:49:30,944 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:49:30,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2021-10-28 23:49:30,948 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 81 transitions, 167 flow [2021-10-28 23:49:30,953 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 72 transitions, 147 flow [2021-10-28 23:49:30,983 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2021-10-28 23:49:30,983 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:49:30,984 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:30,984 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] [2021-10-28 23:49:30,985 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:49:30,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:30,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1353814172, now seen corresponding path program 1 times [2021-10-28 23:49:31,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:31,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015876704] [2021-10-28 23:49:31,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:31,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:31,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:31,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:31,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015876704] [2021-10-28 23:49:31,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015876704] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:31,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:31,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:49:31,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427470737] [2021-10-28 23:49:31,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:49:31,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:31,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:49:31,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:49:31,534 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 81 [2021-10-28 23:49:31,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 72 transitions, 147 flow. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2021-10-28 23:49:31,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:31,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 81 [2021-10-28 23:49:31,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:31,765 INFO L129 PetriNetUnfolder]: 9/119 cut-off events. [2021-10-28 23:49:31,765 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:49:31,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 119 events. 9/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 232 event pairs, 0 based on Foata normal form. 3/121 useless extension candidates. Maximal degree in co-relation 113. Up to 9 conditions per place. [2021-10-28 23:49:31,768 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 7 selfloop transitions, 3 changer transitions 9/84 dead transitions. [2021-10-28 23:49:31,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 84 transitions, 209 flow [2021-10-28 23:49:31,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:49:31,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:49:31,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 518 transitions. [2021-10-28 23:49:31,805 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9135802469135802 [2021-10-28 23:49:31,806 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 518 transitions. [2021-10-28 23:49:31,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 518 transitions. [2021-10-28 23:49:31,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:31,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 518 transitions. [2021-10-28 23:49:31,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 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) [2021-10-28 23:49:31,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 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) [2021-10-28 23:49:31,835 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 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) [2021-10-28 23:49:31,837 INFO L186 Difference]: Start difference. First operand has 75 places, 72 transitions, 147 flow. Second operand 7 states and 518 transitions. [2021-10-28 23:49:31,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 84 transitions, 209 flow [2021-10-28 23:49:31,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 84 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 23:49:31,847 INFO L242 Difference]: Finished difference. Result has 85 places, 72 transitions, 165 flow [2021-10-28 23:49:31,850 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=165, PETRI_PLACES=85, PETRI_TRANSITIONS=72} [2021-10-28 23:49:31,851 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, 10 predicate places. [2021-10-28 23:49:31,851 INFO L470 AbstractCegarLoop]: Abstraction has has 85 places, 72 transitions, 165 flow [2021-10-28 23:49:31,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2021-10-28 23:49:31,852 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:31,852 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:31,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:49:31,853 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:49:31,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:31,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1354001824, now seen corresponding path program 1 times [2021-10-28 23:49:31,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:31,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109921320] [2021-10-28 23:49:31,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:31,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:32,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:32,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109921320] [2021-10-28 23:49:32,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109921320] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:32,316 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:32,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:49:32,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983912572] [2021-10-28 23:49:32,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:49:32,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:32,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:49:32,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:49:32,322 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 81 [2021-10-28 23:49:32,323 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 72 transitions, 165 flow. Second operand has 8 states, 8 states have (on average 45.5) internal successors, (364), 8 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) [2021-10-28 23:49:32,323 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:32,323 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 81 [2021-10-28 23:49:32,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:32,602 INFO L129 PetriNetUnfolder]: 35/168 cut-off events. [2021-10-28 23:49:32,602 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-10-28 23:49:32,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 168 events. 35/168 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 583 event pairs, 12 based on Foata normal form. 10/173 useless extension candidates. Maximal degree in co-relation 285. Up to 50 conditions per place. [2021-10-28 23:49:32,610 INFO L132 encePairwiseOnDemand]: 72/81 looper letters, 27 selfloop transitions, 7 changer transitions 12/78 dead transitions. [2021-10-28 23:49:32,610 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 78 transitions, 261 flow [2021-10-28 23:49:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:49:32,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 23:49:32,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 298 transitions. [2021-10-28 23:49:32,613 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6131687242798354 [2021-10-28 23:49:32,613 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 298 transitions. [2021-10-28 23:49:32,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 298 transitions. [2021-10-28 23:49:32,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:32,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 298 transitions. [2021-10-28 23:49:32,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 49.666666666666664) internal successors, (298), 6 states have internal predecessors, (298), 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) [2021-10-28 23:49:32,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 81.0) internal successors, (567), 7 states have internal predecessors, (567), 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) [2021-10-28 23:49:32,618 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 81.0) internal successors, (567), 7 states have internal predecessors, (567), 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) [2021-10-28 23:49:32,619 INFO L186 Difference]: Start difference. First operand has 85 places, 72 transitions, 165 flow. Second operand 6 states and 298 transitions. [2021-10-28 23:49:32,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 78 transitions, 261 flow [2021-10-28 23:49:32,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 78 transitions, 247 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-10-28 23:49:32,630 INFO L242 Difference]: Finished difference. Result has 80 places, 64 transitions, 148 flow [2021-10-28 23:49:32,631 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=148, PETRI_PLACES=80, PETRI_TRANSITIONS=64} [2021-10-28 23:49:32,631 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, 5 predicate places. [2021-10-28 23:49:32,632 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 64 transitions, 148 flow [2021-10-28 23:49:32,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.5) internal successors, (364), 8 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) [2021-10-28 23:49:32,633 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:32,633 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:32,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:49:32,634 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:49:32,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:32,640 INFO L85 PathProgramCache]: Analyzing trace with hash -2135827299, now seen corresponding path program 1 times [2021-10-28 23:49:32,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:32,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045007788] [2021-10-28 23:49:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:32,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:32,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:32,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:32,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045007788] [2021-10-28 23:49:32,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045007788] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:32,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:32,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:49:32,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580399835] [2021-10-28 23:49:32,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:49:32,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:32,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:49:32,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:49:32,846 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 81 [2021-10-28 23:49:32,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 64 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 51.0) internal successors, (306), 6 states have internal predecessors, (306), 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) [2021-10-28 23:49:32,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:32,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 81 [2021-10-28 23:49:32,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:33,001 INFO L129 PetriNetUnfolder]: 13/103 cut-off events. [2021-10-28 23:49:33,001 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-10-28 23:49:33,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 103 events. 13/103 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 204 event pairs, 4 based on Foata normal form. 4/104 useless extension candidates. Maximal degree in co-relation 120. Up to 26 conditions per place. [2021-10-28 23:49:33,004 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 22 selfloop transitions, 6 changer transitions 3/68 dead transitions. [2021-10-28 23:49:33,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 68 transitions, 220 flow [2021-10-28 23:49:33,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:49:33,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 23:49:33,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 268 transitions. [2021-10-28 23:49:33,006 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6617283950617284 [2021-10-28 23:49:33,007 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 268 transitions. [2021-10-28 23:49:33,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 268 transitions. [2021-10-28 23:49:33,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:33,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 268 transitions. [2021-10-28 23:49:33,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 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) [2021-10-28 23:49:33,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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) [2021-10-28 23:49:33,012 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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) [2021-10-28 23:49:33,013 INFO L186 Difference]: Start difference. First operand has 80 places, 64 transitions, 148 flow. Second operand 5 states and 268 transitions. [2021-10-28 23:49:33,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 68 transitions, 220 flow [2021-10-28 23:49:33,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 68 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 23:49:33,018 INFO L242 Difference]: Finished difference. Result has 72 places, 64 transitions, 151 flow [2021-10-28 23:49:33,019 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=151, PETRI_PLACES=72, PETRI_TRANSITIONS=64} [2021-10-28 23:49:33,049 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, -3 predicate places. [2021-10-28 23:49:33,050 INFO L470 AbstractCegarLoop]: Abstraction has has 72 places, 64 transitions, 151 flow [2021-10-28 23:49:33,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.0) internal successors, (306), 6 states have internal predecessors, (306), 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) [2021-10-28 23:49:33,051 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:33,051 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:33,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:49:33,051 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:49:33,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:33,052 INFO L85 PathProgramCache]: Analyzing trace with hash -691819651, now seen corresponding path program 2 times [2021-10-28 23:49:33,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:33,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294291843] [2021-10-28 23:49:33,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:33,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:33,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:33,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:33,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294291843] [2021-10-28 23:49:33,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294291843] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:33,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:33,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:49:33,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367044881] [2021-10-28 23:49:33,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:49:33,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:33,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:49:33,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:49:33,203 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 81 [2021-10-28 23:49:33,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 64 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 51.8) internal successors, (259), 5 states have internal predecessors, (259), 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) [2021-10-28 23:49:33,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:33,204 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 81 [2021-10-28 23:49:33,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:33,325 INFO L129 PetriNetUnfolder]: 11/98 cut-off events. [2021-10-28 23:49:33,326 INFO L130 PetriNetUnfolder]: For 19/20 co-relation queries the response was YES. [2021-10-28 23:49:33,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 98 events. 11/98 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 177 event pairs, 5 based on Foata normal form. 2/97 useless extension candidates. Maximal degree in co-relation 113. Up to 21 conditions per place. [2021-10-28 23:49:33,327 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 21 selfloop transitions, 4 changer transitions 9/68 dead transitions. [2021-10-28 23:49:33,327 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 68 transitions, 222 flow [2021-10-28 23:49:33,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:49:33,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 23:49:33,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 267 transitions. [2021-10-28 23:49:33,333 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6592592592592592 [2021-10-28 23:49:33,334 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 267 transitions. [2021-10-28 23:49:33,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 267 transitions. [2021-10-28 23:49:33,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:33,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 267 transitions. [2021-10-28 23:49:33,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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) [2021-10-28 23:49:33,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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) [2021-10-28 23:49:33,339 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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) [2021-10-28 23:49:33,339 INFO L186 Difference]: Start difference. First operand has 72 places, 64 transitions, 151 flow. Second operand 5 states and 267 transitions. [2021-10-28 23:49:33,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 68 transitions, 222 flow [2021-10-28 23:49:33,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 68 transitions, 215 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-28 23:49:33,343 INFO L242 Difference]: Finished difference. Result has 73 places, 58 transitions, 137 flow [2021-10-28 23:49:33,344 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=137, PETRI_PLACES=73, PETRI_TRANSITIONS=58} [2021-10-28 23:49:33,344 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, -2 predicate places. [2021-10-28 23:49:33,345 INFO L470 AbstractCegarLoop]: Abstraction has has 73 places, 58 transitions, 137 flow [2021-10-28 23:49:33,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.8) internal successors, (259), 5 states have internal predecessors, (259), 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) [2021-10-28 23:49:33,345 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:33,346 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:33,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:49:33,346 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:49:33,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:33,347 INFO L85 PathProgramCache]: Analyzing trace with hash -736195158, now seen corresponding path program 1 times [2021-10-28 23:49:33,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:33,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210529521] [2021-10-28 23:49:33,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:33,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:33,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:33,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210529521] [2021-10-28 23:49:33,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210529521] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:33,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:33,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:49:33,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537256847] [2021-10-28 23:49:33,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:49:33,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:33,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:49:33,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:49:33,477 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 81 [2021-10-28 23:49:33,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 58 transitions, 137 flow. Second operand has 6 states, 6 states have (on average 51.0) internal successors, (306), 6 states have internal predecessors, (306), 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) [2021-10-28 23:49:33,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:33,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 81 [2021-10-28 23:49:33,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:33,581 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-10-28 23:49:33,581 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-10-28 23:49:33,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 62 events. 0/62 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 4/66 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2021-10-28 23:49:33,582 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 18 selfloop transitions, 6 changer transitions 0/58 dead transitions. [2021-10-28 23:49:33,583 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 58 transitions, 185 flow [2021-10-28 23:49:33,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:49:33,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 23:49:33,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 261 transitions. [2021-10-28 23:49:33,591 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2021-10-28 23:49:33,591 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 261 transitions. [2021-10-28 23:49:33,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 261 transitions. [2021-10-28 23:49:33,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:33,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 261 transitions. [2021-10-28 23:49:33,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 52.2) internal successors, (261), 5 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:49:33,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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) [2021-10-28 23:49:33,596 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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) [2021-10-28 23:49:33,596 INFO L186 Difference]: Start difference. First operand has 73 places, 58 transitions, 137 flow. Second operand 5 states and 261 transitions. [2021-10-28 23:49:33,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 58 transitions, 185 flow [2021-10-28 23:49:33,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 58 transitions, 168 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-10-28 23:49:33,601 INFO L242 Difference]: Finished difference. Result has 66 places, 58 transitions, 132 flow [2021-10-28 23:49:33,601 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=132, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2021-10-28 23:49:33,602 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, -9 predicate places. [2021-10-28 23:49:33,602 INFO L470 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 132 flow [2021-10-28 23:49:33,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.0) internal successors, (306), 6 states have internal predecessors, (306), 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) [2021-10-28 23:49:33,603 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:49:33,603 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:33,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:49:33,604 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:49:33,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:33,605 INFO L85 PathProgramCache]: Analyzing trace with hash 275180480, now seen corresponding path program 2 times [2021-10-28 23:49:33,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:49:33,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469577284] [2021-10-28 23:49:33,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:33,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:49:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:33,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:33,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:49:33,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469577284] [2021-10-28 23:49:33,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469577284] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:33,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:33,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:49:33,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829026266] [2021-10-28 23:49:33,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:49:33,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:49:33,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:49:33,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:49:33,921 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 81 [2021-10-28 23:49:33,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 132 flow. Second operand has 9 states, 9 states have (on average 45.22222222222222) internal successors, (407), 9 states have internal predecessors, (407), 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) [2021-10-28 23:49:33,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:49:33,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 81 [2021-10-28 23:49:33,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:49:34,152 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2021-10-28 23:49:34,152 INFO L130 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2021-10-28 23:49:34,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 54 events. 0/54 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 2/56 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-10-28 23:49:34,153 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 0 selfloop transitions, 0 changer transitions 53/53 dead transitions. [2021-10-28 23:49:34,153 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 53 transitions, 179 flow [2021-10-28 23:49:34,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:49:34,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:49:34,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 324 transitions. [2021-10-28 23:49:34,156 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2021-10-28 23:49:34,156 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 324 transitions. [2021-10-28 23:49:34,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 324 transitions. [2021-10-28 23:49:34,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:49:34,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 324 transitions. [2021-10-28 23:49:34,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 46.285714285714285) internal successors, (324), 7 states have internal predecessors, (324), 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) [2021-10-28 23:49:34,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 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) [2021-10-28 23:49:34,161 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 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) [2021-10-28 23:49:34,162 INFO L186 Difference]: Start difference. First operand has 66 places, 58 transitions, 132 flow. Second operand 7 states and 324 transitions. [2021-10-28 23:49:34,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 53 transitions, 179 flow [2021-10-28 23:49:34,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 53 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-28 23:49:34,164 INFO L242 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2021-10-28 23:49:34,164 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2021-10-28 23:49:34,165 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, -12 predicate places. [2021-10-28 23:49:34,165 INFO L470 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2021-10-28 23:49:34,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 45.22222222222222) internal successors, (407), 9 states have internal predecessors, (407), 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) [2021-10-28 23:49:34,168 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:49:34,169 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:49:34,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:49:34,173 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2021-10-28 23:49:34,176 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:49:34,176 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:49:34,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:49:34 BasicIcfg [2021-10-28 23:49:34,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:49:34,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:49:34,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:49:34,180 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:49:34,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:49:30" (3/4) ... [2021-10-28 23:49:34,184 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:49:34,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-10-28 23:49:34,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-28 23:49:34,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:49:34,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:49:34,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:49:34,254 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:49:34,260 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:49:34,262 INFO L168 Benchmark]: Toolchain (without parser) took 5071.20 ms. Allocated memory was 134.2 MB in the beginning and 178.3 MB in the end (delta: 44.0 MB). Free memory was 96.2 MB in the beginning and 72.0 MB in the end (delta: 24.2 MB). Peak memory consumption was 67.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:34,262 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 134.2 MB. Free memory was 107.4 MB in the beginning and 107.4 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:49:34,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.93 ms. Allocated memory is still 134.2 MB. Free memory was 95.9 MB in the beginning and 98.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:34,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.11 ms. Allocated memory is still 134.2 MB. Free memory was 98.9 MB in the beginning and 96.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:34,264 INFO L168 Benchmark]: Boogie Preprocessor took 54.38 ms. Allocated memory is still 134.2 MB. Free memory was 96.9 MB in the beginning and 96.1 MB in the end (delta: 705.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:34,264 INFO L168 Benchmark]: RCFGBuilder took 535.74 ms. Allocated memory is still 134.2 MB. Free memory was 95.5 MB in the beginning and 82.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:34,265 INFO L168 Benchmark]: TraceAbstraction took 3507.46 ms. Allocated memory was 134.2 MB in the beginning and 178.3 MB in the end (delta: 44.0 MB). Free memory was 82.9 MB in the beginning and 75.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 53.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:34,266 INFO L168 Benchmark]: Witness Printer took 80.20 ms. Allocated memory is still 178.3 MB. Free memory was 75.1 MB in the beginning and 72.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:34,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 134.2 MB. Free memory was 107.4 MB in the beginning and 107.4 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 797.93 ms. Allocated memory is still 134.2 MB. Free memory was 95.9 MB in the beginning and 98.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.11 ms. Allocated memory is still 134.2 MB. Free memory was 98.9 MB in the beginning and 96.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.38 ms. Allocated memory is still 134.2 MB. Free memory was 96.9 MB in the beginning and 96.1 MB in the end (delta: 705.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 535.74 ms. Allocated memory is still 134.2 MB. Free memory was 95.5 MB in the beginning and 82.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3507.46 ms. Allocated memory was 134.2 MB in the beginning and 178.3 MB in the end (delta: 44.0 MB). Free memory was 82.9 MB in the beginning and 75.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 53.2 MB. Max. memory is 16.1 GB. * Witness Printer took 80.20 ms. Allocated memory is still 178.3 MB. Free memory was 75.1 MB in the beginning and 72.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: 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, 99 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: 3.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 103 SDslu, 55 SDs, 0 SdLazy, 369 SolverSat, 118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 12 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=1, InterpolantAutomatonStates: 35, 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 338 NumberOfCodeBlocks, 338 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 332 ConstructedInterpolants, 0 QuantifiedInterpolants, 2000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 23:49:34,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ef45f1-ea74-4d50-82b7-dd2ed1352cd6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...