./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 f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/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_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX --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 b9cb80ce7b0c0db24d48a98e6e8d1fa81dc0ba8a1f2c5d148b0b0229d5ab18a1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:58:32,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:58:32,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:58:32,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:58:32,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:58:32,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:58:32,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:58:32,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:58:32,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:58:32,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:58:32,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:58:32,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:58:32,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:58:32,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:58:32,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:58:32,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:58:32,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:58:32,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:58:32,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:58:32,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:58:32,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:58:32,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:58:32,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:58:32,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:58:32,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:58:32,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:58:32,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:58:32,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:58:32,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:58:32,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:58:32,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:58:32,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:58:32,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:58:32,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:58:32,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:58:32,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:58:32,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:58:32,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:58:32,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:58:32,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:58:32,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:58:32,170 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 08:58:32,219 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:58:32,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:58:32,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:58:32,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:58:32,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:58:32,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:58:32,229 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:58:32,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:58:32,230 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:58:32,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:58:32,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:58:32,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:58:32,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:58:32,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:58:32,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:58:32,232 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:58:32,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:58:32,233 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:58:32,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:58:32,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:58:32,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:58:32,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:58:32,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:58:32,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:58:32,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:58:32,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:58:32,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:58:32,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:58:32,236 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:58:32,238 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:58:32,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:58:32,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:58:32,238 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_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9cb80ce7b0c0db24d48a98e6e8d1fa81dc0ba8a1f2c5d148b0b0229d5ab18a1 [2021-11-09 08:58:32,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:58:32,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:58:32,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:58:32,537 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:58:32,538 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:58:32,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2021-11-09 08:58:32,610 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/data/1ea5adb83/a4595e286962436a87ae61bb569bfd22/FLAG0bd9a47cc [2021-11-09 08:58:33,179 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:58:33,179 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/sv-benchmarks/c/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2021-11-09 08:58:33,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/data/1ea5adb83/a4595e286962436a87ae61bb569bfd22/FLAG0bd9a47cc [2021-11-09 08:58:33,461 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/data/1ea5adb83/a4595e286962436a87ae61bb569bfd22 [2021-11-09 08:58:33,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:58:33,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:58:33,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:58:33,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:58:33,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:58:33,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:58:33" (1/1) ... [2021-11-09 08:58:33,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7ed65b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33, skipping insertion in model container [2021-11-09 08:58:33,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:58:33" (1/1) ... [2021-11-09 08:58:33,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:58:33,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:58:33,735 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_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/sv-benchmarks/c/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i[1107,1120] [2021-11-09 08:58:33,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:58:33,898 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:58:33,912 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_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/sv-benchmarks/c/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i[1107,1120] [2021-11-09 08:58:33,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:58:33,983 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:58:33,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33 WrapperNode [2021-11-09 08:58:33,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:58:33,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:58:33,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:58:33,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:58:33,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33" (1/1) ... [2021-11-09 08:58:34,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33" (1/1) ... [2021-11-09 08:58:34,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:58:34,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:58:34,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:58:34,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:58:34,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33" (1/1) ... [2021-11-09 08:58:34,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33" (1/1) ... [2021-11-09 08:58:34,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33" (1/1) ... [2021-11-09 08:58:34,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33" (1/1) ... [2021-11-09 08:58:34,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33" (1/1) ... [2021-11-09 08:58:34,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33" (1/1) ... [2021-11-09 08:58:34,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33" (1/1) ... [2021-11-09 08:58:34,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:58:34,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:58:34,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:58:34,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:58:34,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33" (1/1) ... [2021-11-09 08:58:34,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:58:34,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:34,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:58:34,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:58:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:58:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-09 08:58:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:58:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-09 08:58:34,137 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-09 08:58:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:58:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:58:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:58:34,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:58:34,140 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-09 08:58:34,439 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:58:34,440 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-09 08:58:34,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:34 BoogieIcfgContainer [2021-11-09 08:58:34,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:58:34,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:58:34,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:58:34,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:58:34,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:58:33" (1/3) ... [2021-11-09 08:58:34,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21255f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:58:34, skipping insertion in model container [2021-11-09 08:58:34,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:33" (2/3) ... [2021-11-09 08:58:34,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21255f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:58:34, skipping insertion in model container [2021-11-09 08:58:34,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:34" (3/3) ... [2021-11-09 08:58:34,452 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2021-11-09 08:58:34,458 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-09 08:58:34,459 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:58:34,459 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 08:58:34,459 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-09 08:58:34,495 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,496 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,497 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,497 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,497 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,498 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,498 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,498 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,500 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,500 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,500 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,501 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,501 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,502 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,502 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,503 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,503 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,505 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,506 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,520 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,524 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,524 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,525 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,526 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:34,539 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-09 08:58:34,596 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:58:34,603 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:58:34,604 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-09 08:58:34,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 167 flow [2021-11-09 08:58:34,678 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2021-11-09 08:58:34,678 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 08:58:34,681 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. [2021-11-09 08:58:34,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 81 transitions, 167 flow [2021-11-09 08:58:34,686 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 72 transitions, 147 flow [2021-11-09 08:58:34,718 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2021-11-09 08:58:34,718 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 08:58:34,719 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:58:34,719 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] [2021-11-09 08:58:34,721 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 08:58:34,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:34,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1280845962, now seen corresponding path program 1 times [2021-11-09 08:58:34,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:34,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126439905] [2021-11-09 08:58:34,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:34,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:35,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:35,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:35,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126439905] [2021-11-09 08:58:35,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126439905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:58:35,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:58:35,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 08:58:35,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234990474] [2021-11-09 08:58:35,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:58:35,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:35,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:58:35,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:58:35,307 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 81 [2021-11-09 08:58:35,312 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) [2021-11-09 08:58:35,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:58:35,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 81 [2021-11-09 08:58:35,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:58:35,403 INFO L129 PetriNetUnfolder]: 9/119 cut-off events. [2021-11-09 08:58:35,404 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 08:58:35,405 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 238 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. [2021-11-09 08:58:35,407 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 7 selfloop transitions, 3 changer transitions 9/84 dead transitions. [2021-11-09 08:58:35,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 84 transitions, 209 flow [2021-11-09 08:58:35,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:58:35,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 08:58:35,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 518 transitions. [2021-11-09 08:58:35,424 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9135802469135802 [2021-11-09 08:58:35,427 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 518 transitions. [2021-11-09 08:58:35,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 518 transitions. [2021-11-09 08:58:35,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:58:35,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 518 transitions. [2021-11-09 08:58:35,444 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) [2021-11-09 08:58:35,456 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) [2021-11-09 08:58:35,457 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) [2021-11-09 08:58:35,459 INFO L186 Difference]: Start difference. First operand has 75 places, 72 transitions, 147 flow. Second operand 7 states and 518 transitions. [2021-11-09 08:58:35,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 84 transitions, 209 flow [2021-11-09 08:58:35,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 84 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-09 08:58:35,478 INFO L242 Difference]: Finished difference. Result has 85 places, 72 transitions, 165 flow [2021-11-09 08:58:35,481 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} [2021-11-09 08:58:35,482 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, 10 predicate places. [2021-11-09 08:58:35,482 INFO L470 AbstractCegarLoop]: Abstraction has has 85 places, 72 transitions, 165 flow [2021-11-09 08:58:35,483 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) [2021-11-09 08:58:35,483 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:58:35,484 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] [2021-11-09 08:58:35,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:58:35,493 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 08:58:35,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:35,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1086351769, now seen corresponding path program 1 times [2021-11-09 08:58:35,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:35,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801722650] [2021-11-09 08:58:35,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:35,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:35,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:35,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:35,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801722650] [2021-11-09 08:58:35,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801722650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:58:35,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:58:35,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-09 08:58:35,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45398283] [2021-11-09 08:58:35,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 08:58:35,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:35,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 08:58:35,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:58:35,963 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 81 [2021-11-09 08:58:35,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 72 transitions, 165 flow. Second operand has 9 states, 9 states have (on average 45.111111111111114) internal successors, (406), 9 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:35,964 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:58:35,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 81 [2021-11-09 08:58:35,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:58:36,388 INFO L129 PetriNetUnfolder]: 33/176 cut-off events. [2021-11-09 08:58:36,389 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-11-09 08:58:36,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 176 events. 33/176 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 648 event pairs, 5 based on Foata normal form. 10/183 useless extension candidates. Maximal degree in co-relation 297. Up to 48 conditions per place. [2021-11-09 08:58:36,391 INFO L132 encePairwiseOnDemand]: 68/81 looper letters, 28 selfloop transitions, 9 changer transitions 17/86 dead transitions. [2021-11-09 08:58:36,391 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 86 transitions, 293 flow [2021-11-09 08:58:36,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:58:36,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-11-09 08:58:36,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 390 transitions. [2021-11-09 08:58:36,396 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6018518518518519 [2021-11-09 08:58:36,397 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 390 transitions. [2021-11-09 08:58:36,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 390 transitions. [2021-11-09 08:58:36,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:58:36,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 390 transitions. [2021-11-09 08:58:36,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 48.75) internal successors, (390), 8 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:36,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 81.0) internal successors, (729), 9 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:36,402 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 81.0) internal successors, (729), 9 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:36,403 INFO L186 Difference]: Start difference. First operand has 85 places, 72 transitions, 165 flow. Second operand 8 states and 390 transitions. [2021-11-09 08:58:36,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 86 transitions, 293 flow [2021-11-09 08:58:36,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 86 transitions, 279 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-11-09 08:58:36,408 INFO L242 Difference]: Finished difference. Result has 84 places, 66 transitions, 167 flow [2021-11-09 08:58:36,408 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=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=167, PETRI_PLACES=84, PETRI_TRANSITIONS=66} [2021-11-09 08:58:36,416 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, 9 predicate places. [2021-11-09 08:58:36,416 INFO L470 AbstractCegarLoop]: Abstraction has has 84 places, 66 transitions, 167 flow [2021-11-09 08:58:36,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 45.111111111111114) internal successors, (406), 9 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:36,417 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:58:36,417 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] [2021-11-09 08:58:36,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:58:36,418 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 08:58:36,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:36,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1807084740, now seen corresponding path program 1 times [2021-11-09 08:58:36,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:36,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871640700] [2021-11-09 08:58:36,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:36,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:36,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:36,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:36,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871640700] [2021-11-09 08:58:36,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871640700] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:58:36,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:58:36,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:58:36,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011864256] [2021-11-09 08:58:36,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:58:36,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:36,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:58:36,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:58:36,526 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 81 [2021-11-09 08:58:36,527 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 66 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:36,527 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:58:36,527 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 81 [2021-11-09 08:58:36,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:58:36,630 INFO L129 PetriNetUnfolder]: 7/93 cut-off events. [2021-11-09 08:58:36,630 INFO L130 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2021-11-09 08:58:36,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 93 events. 7/93 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 158 event pairs, 2 based on Foata normal form. 6/97 useless extension candidates. Maximal degree in co-relation 136. Up to 18 conditions per place. [2021-11-09 08:58:36,631 INFO L132 encePairwiseOnDemand]: 76/81 looper letters, 13 selfloop transitions, 4 changer transitions 5/70 dead transitions. [2021-11-09 08:58:36,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 70 transitions, 221 flow [2021-11-09 08:58:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:58:36,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 08:58:36,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2021-11-09 08:58:36,648 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8189300411522634 [2021-11-09 08:58:36,649 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 199 transitions. [2021-11-09 08:58:36,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 199 transitions. [2021-11-09 08:58:36,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:58:36,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 199 transitions. [2021-11-09 08:58:36,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:36,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 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) [2021-11-09 08:58:36,652 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 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) [2021-11-09 08:58:36,652 INFO L186 Difference]: Start difference. First operand has 84 places, 66 transitions, 167 flow. Second operand 3 states and 199 transitions. [2021-11-09 08:58:36,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 70 transitions, 221 flow [2021-11-09 08:58:36,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 70 transitions, 209 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-11-09 08:58:36,659 INFO L242 Difference]: Finished difference. Result has 74 places, 64 transitions, 159 flow [2021-11-09 08:58:36,660 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=74, PETRI_TRANSITIONS=64} [2021-11-09 08:58:36,660 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2021-11-09 08:58:36,660 INFO L470 AbstractCegarLoop]: Abstraction has has 74 places, 64 transitions, 159 flow [2021-11-09 08:58:36,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:36,661 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:58:36,661 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] [2021-11-09 08:58:36,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 08:58:36,662 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 08:58:36,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:36,663 INFO L85 PathProgramCache]: Analyzing trace with hash -180289440, now seen corresponding path program 2 times [2021-11-09 08:58:36,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:36,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831759223] [2021-11-09 08:58:36,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:36,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:37,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:37,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:37,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831759223] [2021-11-09 08:58:37,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831759223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:58:37,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:58:37,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-09 08:58:37,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143657804] [2021-11-09 08:58:37,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 08:58:37,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:37,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 08:58:37,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:58:37,023 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 81 [2021-11-09 08:58:37,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 64 transitions, 159 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) [2021-11-09 08:58:37,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:58:37,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 81 [2021-11-09 08:58:37,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:58:37,256 INFO L129 PetriNetUnfolder]: 5/78 cut-off events. [2021-11-09 08:58:37,256 INFO L130 PetriNetUnfolder]: For 21/24 co-relation queries the response was YES. [2021-11-09 08:58:37,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 78 events. 5/78 cut-off events. For 21/24 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 102 event pairs, 1 based on Foata normal form. 3/79 useless extension candidates. Maximal degree in co-relation 140. Up to 17 conditions per place. [2021-11-09 08:58:37,258 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 26 selfloop transitions, 4 changer transitions 3/62 dead transitions. [2021-11-09 08:58:37,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 62 transitions, 213 flow [2021-11-09 08:58:37,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:58:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-09 08:58:37,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 326 transitions. [2021-11-09 08:58:37,260 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5749559082892416 [2021-11-09 08:58:37,261 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 326 transitions. [2021-11-09 08:58:37,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 326 transitions. [2021-11-09 08:58:37,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:58:37,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 326 transitions. [2021-11-09 08:58:37,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 46.57142857142857) internal successors, (326), 7 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:37,264 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) [2021-11-09 08:58:37,265 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) [2021-11-09 08:58:37,265 INFO L186 Difference]: Start difference. First operand has 74 places, 64 transitions, 159 flow. Second operand 7 states and 326 transitions. [2021-11-09 08:58:37,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 62 transitions, 213 flow [2021-11-09 08:58:37,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 62 transitions, 201 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-11-09 08:58:37,268 INFO L242 Difference]: Finished difference. Result has 74 places, 58 transitions, 136 flow [2021-11-09 08:58:37,269 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=136, PETRI_PLACES=74, PETRI_TRANSITIONS=58} [2021-11-09 08:58:37,269 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2021-11-09 08:58:37,269 INFO L470 AbstractCegarLoop]: Abstraction has has 74 places, 58 transitions, 136 flow [2021-11-09 08:58:37,270 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) [2021-11-09 08:58:37,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:58:37,270 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] [2021-11-09 08:58:37,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 08:58:37,271 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 08:58:37,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:37,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1500005573, now seen corresponding path program 1 times [2021-11-09 08:58:37,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:37,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585185377] [2021-11-09 08:58:37,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:37,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:37,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:37,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:37,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585185377] [2021-11-09 08:58:37,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585185377] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:58:37,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:58:37,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 08:58:37,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906579195] [2021-11-09 08:58:37,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:58:37,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:37,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:58:37,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:58:37,405 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 81 [2021-11-09 08:58:37,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 58 transitions, 136 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) [2021-11-09 08:58:37,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:58:37,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 81 [2021-11-09 08:58:37,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:58:37,506 INFO L129 PetriNetUnfolder]: 1/65 cut-off events. [2021-11-09 08:58:37,507 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-11-09 08:58:37,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 65 events. 1/65 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 4/68 useless extension candidates. Maximal degree in co-relation 107. Up to 11 conditions per place. [2021-11-09 08:58:37,508 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 18 selfloop transitions, 6 changer transitions 1/59 dead transitions. [2021-11-09 08:58:37,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 59 transitions, 193 flow [2021-11-09 08:58:37,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:58:37,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 08:58:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 262 transitions. [2021-11-09 08:58:37,510 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6469135802469136 [2021-11-09 08:58:37,510 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 262 transitions. [2021-11-09 08:58:37,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 262 transitions. [2021-11-09 08:58:37,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:58:37,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 262 transitions. [2021-11-09 08:58:37,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 52.4) internal successors, (262), 5 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:37,513 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) [2021-11-09 08:58:37,514 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) [2021-11-09 08:58:37,514 INFO L186 Difference]: Start difference. First operand has 74 places, 58 transitions, 136 flow. Second operand 5 states and 262 transitions. [2021-11-09 08:58:37,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 59 transitions, 193 flow [2021-11-09 08:58:37,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 59 transitions, 182 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-11-09 08:58:37,517 INFO L242 Difference]: Finished difference. Result has 69 places, 58 transitions, 139 flow [2021-11-09 08:58:37,517 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=65, 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=139, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2021-11-09 08:58:37,518 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, -6 predicate places. [2021-11-09 08:58:37,518 INFO L470 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 139 flow [2021-11-09 08:58:37,518 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) [2021-11-09 08:58:37,518 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:58:37,519 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] [2021-11-09 08:58:37,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 08:58:37,519 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 08:58:37,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:37,520 INFO L85 PathProgramCache]: Analyzing trace with hash 176940561, now seen corresponding path program 2 times [2021-11-09 08:58:37,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:37,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934080125] [2021-11-09 08:58:37,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:37,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:37,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:37,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934080125] [2021-11-09 08:58:37,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934080125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:58:37,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:58:37,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 08:58:37,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639987326] [2021-11-09 08:58:37,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:58:37,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:37,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:58:37,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:58:37,610 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 81 [2021-11-09 08:58:37,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 139 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) [2021-11-09 08:58:37,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:58:37,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 81 [2021-11-09 08:58:37,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:58:37,685 INFO L129 PetriNetUnfolder]: 1/55 cut-off events. [2021-11-09 08:58:37,685 INFO L130 PetriNetUnfolder]: For 10/11 co-relation queries the response was YES. [2021-11-09 08:58:37,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 55 events. 1/55 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 2/56 useless extension candidates. Maximal degree in co-relation 94. Up to 8 conditions per place. [2021-11-09 08:58:37,686 INFO L132 encePairwiseOnDemand]: 77/81 looper letters, 0 selfloop transitions, 0 changer transitions 53/53 dead transitions. [2021-11-09 08:58:37,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 53 transitions, 176 flow [2021-11-09 08:58:37,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:58:37,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 08:58:37,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 260 transitions. [2021-11-09 08:58:37,689 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6419753086419753 [2021-11-09 08:58:37,689 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 260 transitions. [2021-11-09 08:58:37,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 260 transitions. [2021-11-09 08:58:37,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:58:37,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 260 transitions. [2021-11-09 08:58:37,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 52.0) internal successors, (260), 5 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:37,692 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) [2021-11-09 08:58:37,693 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) [2021-11-09 08:58:37,693 INFO L186 Difference]: Start difference. First operand has 69 places, 58 transitions, 139 flow. Second operand 5 states and 260 transitions. [2021-11-09 08:58:37,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 53 transitions, 176 flow [2021-11-09 08:58:37,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 53 transitions, 167 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-09 08:58:37,696 INFO L242 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2021-11-09 08:58:37,697 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=59, 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=5, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2021-11-09 08:58:37,697 INFO L334 CegarLoopForPetriNet]: 75 programPoint places, -12 predicate places. [2021-11-09 08:58:37,697 INFO L470 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2021-11-09 08:58:37,697 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) [2021-11-09 08:58:37,700 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:58:37,701 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-09 08:58:37,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 08:58:37,709 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2021-11-09 08:58:37,712 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-09 08:58:37,712 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 08:58:37,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:58:37 BasicIcfg [2021-11-09 08:58:37,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 08:58:37,720 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 08:58:37,720 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 08:58:37,720 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 08:58:37,721 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:34" (3/4) ... [2021-11-09 08:58:37,724 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-09 08:58:37,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-09 08:58:37,738 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-09 08:58:37,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-09 08:58:37,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-09 08:58:37,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-09 08:58:37,785 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 08:58:37,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 08:58:37,787 INFO L168 Benchmark]: Toolchain (without parser) took 4322.11 ms. Allocated memory was 102.8 MB in the beginning and 144.7 MB in the end (delta: 41.9 MB). Free memory was 73.9 MB in the beginning and 83.0 MB in the end (delta: -9.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:37,787 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 102.8 MB. Free memory is still 58.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:58:37,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 507.59 ms. Allocated memory was 102.8 MB in the beginning and 144.7 MB in the end (delta: 41.9 MB). Free memory was 73.7 MB in the beginning and 110.2 MB in the end (delta: -36.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:37,788 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.98 ms. Allocated memory is still 144.7 MB. Free memory was 109.8 MB in the beginning and 108.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:37,789 INFO L168 Benchmark]: Boogie Preprocessor took 26.05 ms. Allocated memory is still 144.7 MB. Free memory was 108.1 MB in the beginning and 106.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:37,790 INFO L168 Benchmark]: RCFGBuilder took 384.44 ms. Allocated memory is still 144.7 MB. Free memory was 106.8 MB in the beginning and 94.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:37,790 INFO L168 Benchmark]: TraceAbstraction took 3274.88 ms. Allocated memory is still 144.7 MB. Free memory was 93.8 MB in the beginning and 86.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:37,791 INFO L168 Benchmark]: Witness Printer took 65.44 ms. Allocated memory is still 144.7 MB. Free memory was 86.1 MB in the beginning and 83.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:37,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 102.8 MB. Free memory is still 58.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 507.59 ms. Allocated memory was 102.8 MB in the beginning and 144.7 MB in the end (delta: 41.9 MB). Free memory was 73.7 MB in the beginning and 110.2 MB in the end (delta: -36.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.98 ms. Allocated memory is still 144.7 MB. Free memory was 109.8 MB in the beginning and 108.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.05 ms. Allocated memory is still 144.7 MB. Free memory was 108.1 MB in the beginning and 106.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 384.44 ms. Allocated memory is still 144.7 MB. Free memory was 106.8 MB in the beginning and 94.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3274.88 ms. Allocated memory is still 144.7 MB. Free memory was 93.8 MB in the beginning and 86.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Witness Printer took 65.44 ms. Allocated memory is still 144.7 MB. Free memory was 86.1 MB in the beginning and 83.0 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: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 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: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 74 SDslu, 54 SDs, 0 SdLazy, 324 SolverSat, 154 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 12 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=2, 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, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 338 NumberOfCodeBlocks, 338 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 332 ConstructedInterpolants, 0 QuantifiedInterpolants, 1823 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! [2021-11-09 08:58:37,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc002ce3-607f-4cba-a62d-cf52ad9a56e3/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE