./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0 --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 f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:16:40,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:16:40,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:16:40,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:16:40,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:16:40,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:16:40,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:16:40,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:16:40,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:16:40,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:16:40,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:16:40,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:16:40,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:16:40,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:16:40,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:16:40,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:16:40,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:16:40,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:16:40,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:16:40,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:16:40,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:16:40,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:16:40,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:16:40,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:16:40,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:16:40,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:16:40,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:16:40,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:16:40,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:16:40,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:16:40,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:16:40,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:16:40,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:16:40,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:16:40,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:16:40,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:16:40,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:16:40,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:16:40,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:16:40,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:16:40,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:16:40,200 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 15:16:40,242 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:16:40,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:16:40,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:16:40,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:16:40,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:16:40,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:16:40,256 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:16:40,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:16:40,256 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:16:40,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:16:40,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:16:40,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:16:40,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:16:40,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:16:40,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:16:40,259 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:16:40,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:16:40,260 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:16:40,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:16:40,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:16:40,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:16:40,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:16:40,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:16:40,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:16:40,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:16:40,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:16:40,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:16:40,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:16:40,262 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:16:40,264 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:16:40,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:16:40,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:16:40,265 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_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d [2021-11-22 15:16:40,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:16:40,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:16:40,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:16:40,534 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:16:40,535 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:16:40,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2021-11-22 15:16:40,610 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/data/17ea96688/ffee0947dab04d83b7e9b2dfc1cccee7/FLAG9e3711c1a [2021-11-22 15:16:41,056 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:16:41,057 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2021-11-22 15:16:41,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/data/17ea96688/ffee0947dab04d83b7e9b2dfc1cccee7/FLAG9e3711c1a [2021-11-22 15:16:41,435 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/data/17ea96688/ffee0947dab04d83b7e9b2dfc1cccee7 [2021-11-22 15:16:41,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:16:41,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:16:41,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:16:41,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:16:41,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:16:41,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:16:41" (1/1) ... [2021-11-22 15:16:41,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@558d3bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41, skipping insertion in model container [2021-11-22 15:16:41,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:16:41" (1/1) ... [2021-11-22 15:16:41,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:16:41,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:16:41,736 WARN L230 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_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2021-11-22 15:16:41,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:16:41,756 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:16:41,786 WARN L230 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_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2021-11-22 15:16:41,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:16:41,808 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:16:41,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41 WrapperNode [2021-11-22 15:16:41,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:16:41,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:16:41,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:16:41,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:16:41,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41" (1/1) ... [2021-11-22 15:16:41,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41" (1/1) ... [2021-11-22 15:16:41,865 INFO L137 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 193 [2021-11-22 15:16:41,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:16:41,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:16:41,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:16:41,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:16:41,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41" (1/1) ... [2021-11-22 15:16:41,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41" (1/1) ... [2021-11-22 15:16:41,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41" (1/1) ... [2021-11-22 15:16:41,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41" (1/1) ... [2021-11-22 15:16:41,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41" (1/1) ... [2021-11-22 15:16:41,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41" (1/1) ... [2021-11-22 15:16:41,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41" (1/1) ... [2021-11-22 15:16:41,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:16:41,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:16:41,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:16:41,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:16:41,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41" (1/1) ... [2021-11-22 15:16:41,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:16:41,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:16:41,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:16:41,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:16:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:16:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:16:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:16:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:16:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-22 15:16:42,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-22 15:16:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-22 15:16:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-22 15:16:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-22 15:16:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-22 15:16:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:16:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:16:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:16:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:16:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:16:42,046 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 15:16:42,175 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:16:42,177 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:16:42,696 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:16:42,713 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:16:42,714 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-22 15:16:42,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:16:42 BoogieIcfgContainer [2021-11-22 15:16:42,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:16:42,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:16:42,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:16:42,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:16:42,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:16:41" (1/3) ... [2021-11-22 15:16:42,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b07d406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:16:42, skipping insertion in model container [2021-11-22 15:16:42,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:41" (2/3) ... [2021-11-22 15:16:42,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b07d406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:16:42, skipping insertion in model container [2021-11-22 15:16:42,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:16:42" (3/3) ... [2021-11-22 15:16:42,726 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2021-11-22 15:16:42,731 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-22 15:16:42,732 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:16:42,732 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 15:16:42,732 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-22 15:16:42,794 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,794 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,795 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,795 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,795 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,796 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,797 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,797 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,797 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,798 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,798 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,798 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,798 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,798 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,799 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,799 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,799 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,799 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,800 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,801 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,801 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,801 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,801 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,801 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,802 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,802 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,802 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,802 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,803 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,803 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,803 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,804 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,804 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,804 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,804 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,804 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,805 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,805 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,805 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,805 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,805 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,806 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,806 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,806 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,806 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,807 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,807 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,807 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,807 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,808 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,809 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,809 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,809 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,809 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,809 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,809 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,810 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,810 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,811 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,811 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,811 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,812 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,812 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,812 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,812 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,813 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,813 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,813 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,813 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,814 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,814 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,814 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,814 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,814 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,815 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,815 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,831 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,832 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,832 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,832 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,832 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,832 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,832 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,833 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,833 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,833 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,833 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,834 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,834 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,834 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,834 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,834 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,834 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,835 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,835 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,835 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,835 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,839 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,849 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,854 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,857 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,870 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,870 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,870 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,871 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,871 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 15:16:42,875 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-22 15:16:42,944 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:16:42,953 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 [2021-11-22 15:16:42,953 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-22 15:16:42,977 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 279 places, 294 transitions, 612 flow [2021-11-22 15:16:43,127 INFO L129 PetriNetUnfolder]: 25/291 cut-off events. [2021-11-22 15:16:43,127 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-22 15:16:43,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 291 events. 25/291 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 179 event pairs, 0 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 234. Up to 2 conditions per place. [2021-11-22 15:16:43,135 INFO L82 GeneralOperation]: Start removeDead. Operand has 279 places, 294 transitions, 612 flow [2021-11-22 15:16:43,144 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 265 places, 280 transitions, 578 flow [2021-11-22 15:16:43,235 INFO L129 PetriNetUnfolder]: 25/279 cut-off events. [2021-11-22 15:16:43,236 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-22 15:16:43,236 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:16:43,237 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:43,238 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:16:43,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:43,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1742839752, now seen corresponding path program 1 times [2021-11-22 15:16:43,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:16:43,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491890221] [2021-11-22 15:16:43,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:43,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:16:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:43,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:43,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:16:43,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491890221] [2021-11-22 15:16:43,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491890221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:16:43,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:16:43,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:16:43,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135153348] [2021-11-22 15:16:43,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:43,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:16:43,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:16:43,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:16:43,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:16:43,711 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 294 [2021-11-22 15:16:43,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 280 transitions, 578 flow. Second operand has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:43,717 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:16:43,717 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 294 [2021-11-22 15:16:43,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:16:43,796 INFO L129 PetriNetUnfolder]: 7/262 cut-off events. [2021-11-22 15:16:43,797 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-11-22 15:16:43,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 262 events. 7/262 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 164 event pairs, 0 based on Foata normal form. 24/268 useless extension candidates. Maximal degree in co-relation 221. Up to 7 conditions per place. [2021-11-22 15:16:43,801 INFO L132 encePairwiseOnDemand]: 276/294 looper letters, 6 selfloop transitions, 0 changer transitions 11/262 dead transitions. [2021-11-22 15:16:43,801 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 262 transitions, 554 flow [2021-11-22 15:16:43,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:16:43,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-22 15:16:43,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 562 transitions. [2021-11-22 15:16:43,820 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.95578231292517 [2021-11-22 15:16:43,821 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 562 transitions. [2021-11-22 15:16:43,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 562 transitions. [2021-11-22 15:16:43,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:16:43,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 562 transitions. [2021-11-22 15:16:43,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 281.0) internal successors, (562), 2 states have internal predecessors, (562), 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) [2021-11-22 15:16:43,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 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) [2021-11-22 15:16:43,843 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 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) [2021-11-22 15:16:43,845 INFO L186 Difference]: Start difference. First operand has 265 places, 280 transitions, 578 flow. Second operand 2 states and 562 transitions. [2021-11-22 15:16:43,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 262 transitions, 554 flow [2021-11-22 15:16:43,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 262 transitions, 542 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-11-22 15:16:43,861 INFO L242 Difference]: Finished difference. Result has 260 places, 251 transitions, 508 flow [2021-11-22 15:16:43,864 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=508, PETRI_PLACES=260, PETRI_TRANSITIONS=251} [2021-11-22 15:16:43,869 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, -5 predicate places. [2021-11-22 15:16:43,869 INFO L470 AbstractCegarLoop]: Abstraction has has 260 places, 251 transitions, 508 flow [2021-11-22 15:16:43,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:16:43,870 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:16:43,870 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:43,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:16:43,871 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:16:43,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:43,872 INFO L85 PathProgramCache]: Analyzing trace with hash -252625064, now seen corresponding path program 1 times [2021-11-22 15:16:43,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:16:43,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562359879] [2021-11-22 15:16:43,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:43,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:16:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:44,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:16:44,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:16:44,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562359879] [2021-11-22 15:16:44,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562359879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:16:44,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:16:44,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-22 15:16:44,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711781263] [2021-11-22 15:16:44,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:44,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 15:16:44,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:16:44,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 15:16:44,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:16:44,418 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 294 [2021-11-22 15:16:44,425 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 251 transitions, 508 flow. Second operand has 8 states, 8 states have (on average 177.75) internal successors, (1422), 8 states have internal predecessors, (1422), 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) [2021-11-22 15:16:44,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:16:44,425 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 294 [2021-11-22 15:16:44,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:16:45,145 INFO L129 PetriNetUnfolder]: 81/818 cut-off events. [2021-11-22 15:16:45,146 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-11-22 15:16:45,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1161 conditions, 818 events. 81/818 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2966 event pairs, 36 based on Foata normal form. 2/749 useless extension candidates. Maximal degree in co-relation 1158. Up to 121 conditions per place. [2021-11-22 15:16:45,157 INFO L132 encePairwiseOnDemand]: 269/294 looper letters, 94 selfloop transitions, 18 changer transitions 111/378 dead transitions. [2021-11-22 15:16:45,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 378 transitions, 1220 flow [2021-11-22 15:16:45,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 15:16:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-22 15:16:45,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2409 transitions. [2021-11-22 15:16:45,168 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.630298273155416 [2021-11-22 15:16:45,168 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2409 transitions. [2021-11-22 15:16:45,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2409 transitions. [2021-11-22 15:16:45,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:16:45,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2409 transitions. [2021-11-22 15:16:45,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 185.30769230769232) internal successors, (2409), 13 states have internal predecessors, (2409), 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) [2021-11-22 15:16:45,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 294.0) internal successors, (4116), 14 states have internal predecessors, (4116), 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) [2021-11-22 15:16:45,195 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 294.0) internal successors, (4116), 14 states have internal predecessors, (4116), 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) [2021-11-22 15:16:45,196 INFO L186 Difference]: Start difference. First operand has 260 places, 251 transitions, 508 flow. Second operand 13 states and 2409 transitions. [2021-11-22 15:16:45,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 378 transitions, 1220 flow [2021-11-22 15:16:45,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 378 transitions, 1220 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-22 15:16:45,238 INFO L242 Difference]: Finished difference. Result has 268 places, 255 transitions, 594 flow [2021-11-22 15:16:45,239 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=594, PETRI_PLACES=268, PETRI_TRANSITIONS=255} [2021-11-22 15:16:45,240 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 3 predicate places. [2021-11-22 15:16:45,240 INFO L470 AbstractCegarLoop]: Abstraction has has 268 places, 255 transitions, 594 flow [2021-11-22 15:16:45,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 177.75) internal successors, (1422), 8 states have internal predecessors, (1422), 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) [2021-11-22 15:16:45,242 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:16:45,243 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:45,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:16:45,243 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:16:45,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:45,244 INFO L85 PathProgramCache]: Analyzing trace with hash 955285944, now seen corresponding path program 1 times [2021-11-22 15:16:45,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:16:45,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332173306] [2021-11-22 15:16:45,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:45,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:16:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:45,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 15:16:45,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:16:45,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332173306] [2021-11-22 15:16:45,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332173306] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:16:45,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512230596] [2021-11-22 15:16:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:45,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:16:45,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:16:45,560 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:16:45,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 15:16:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:45,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-22 15:16:45,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:16:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 15:16:46,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:16:47,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 15:16:47,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512230596] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 15:16:47,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:16:47,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2021-11-22 15:16:47,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115550346] [2021-11-22 15:16:47,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:47,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 15:16:47,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:16:47,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 15:16:47,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-11-22 15:16:47,078 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 294 [2021-11-22 15:16:47,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 255 transitions, 594 flow. Second operand has 7 states, 7 states have (on average 215.71428571428572) internal successors, (1510), 7 states have internal predecessors, (1510), 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) [2021-11-22 15:16:47,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:16:47,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 294 [2021-11-22 15:16:47,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:16:47,335 INFO L129 PetriNetUnfolder]: 55/443 cut-off events. [2021-11-22 15:16:47,335 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2021-11-22 15:16:47,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 677 conditions, 443 events. 55/443 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1026 event pairs, 27 based on Foata normal form. 0/410 useless extension candidates. Maximal degree in co-relation 666. Up to 97 conditions per place. [2021-11-22 15:16:47,340 INFO L132 encePairwiseOnDemand]: 286/294 looper letters, 71 selfloop transitions, 7 changer transitions 0/261 dead transitions. [2021-11-22 15:16:47,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 261 transitions, 764 flow [2021-11-22 15:16:47,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:16:47,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-22 15:16:47,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1524 transitions. [2021-11-22 15:16:47,346 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7405247813411079 [2021-11-22 15:16:47,346 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1524 transitions. [2021-11-22 15:16:47,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1524 transitions. [2021-11-22 15:16:47,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:16:47,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1524 transitions. [2021-11-22 15:16:47,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 217.71428571428572) internal successors, (1524), 7 states have internal predecessors, (1524), 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) [2021-11-22 15:16:47,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 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) [2021-11-22 15:16:47,361 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 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) [2021-11-22 15:16:47,362 INFO L186 Difference]: Start difference. First operand has 268 places, 255 transitions, 594 flow. Second operand 7 states and 1524 transitions. [2021-11-22 15:16:47,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 261 transitions, 764 flow [2021-11-22 15:16:47,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 261 transitions, 718 flow, removed 9 selfloop flow, removed 10 redundant places. [2021-11-22 15:16:47,373 INFO L242 Difference]: Finished difference. Result has 260 places, 257 transitions, 581 flow [2021-11-22 15:16:47,373 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=581, PETRI_PLACES=260, PETRI_TRANSITIONS=257} [2021-11-22 15:16:47,376 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, -5 predicate places. [2021-11-22 15:16:47,377 INFO L470 AbstractCegarLoop]: Abstraction has has 260 places, 257 transitions, 581 flow [2021-11-22 15:16:47,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 215.71428571428572) internal successors, (1510), 7 states have internal predecessors, (1510), 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) [2021-11-22 15:16:47,379 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:16:47,379 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:47,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:16:47,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:16:47,604 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:16:47,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:47,605 INFO L85 PathProgramCache]: Analyzing trace with hash 461159547, now seen corresponding path program 1 times [2021-11-22 15:16:47,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:16:47,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963253766] [2021-11-22 15:16:47,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:47,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:16:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:47,816 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 15:16:47,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:16:47,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963253766] [2021-11-22 15:16:47,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963253766] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:16:47,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805056592] [2021-11-22 15:16:47,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:47,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:16:47,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:16:47,824 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:16:47,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 15:16:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:47,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 15:16:47,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:16:48,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 15:16:48,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:16:49,123 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 15:16:49,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805056592] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 15:16:49,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:16:49,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2021-11-22 15:16:49,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200023386] [2021-11-22 15:16:49,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:49,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 15:16:49,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:16:49,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 15:16:49,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2021-11-22 15:16:49,135 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 294 [2021-11-22 15:16:49,138 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 257 transitions, 581 flow. Second operand has 9 states, 9 states have (on average 204.33333333333334) internal successors, (1839), 9 states have internal predecessors, (1839), 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) [2021-11-22 15:16:49,139 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:16:49,139 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 294 [2021-11-22 15:16:49,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:16:49,995 INFO L129 PetriNetUnfolder]: 1177/2432 cut-off events. [2021-11-22 15:16:49,995 INFO L130 PetriNetUnfolder]: For 1086/1524 co-relation queries the response was YES. [2021-11-22 15:16:50,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4946 conditions, 2432 events. 1177/2432 cut-off events. For 1086/1524 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 15069 event pairs, 287 based on Foata normal form. 438/2679 useless extension candidates. Maximal degree in co-relation 4938. Up to 498 conditions per place. [2021-11-22 15:16:50,027 INFO L132 encePairwiseOnDemand]: 283/294 looper letters, 133 selfloop transitions, 17 changer transitions 0/323 dead transitions. [2021-11-22 15:16:50,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 323 transitions, 1064 flow [2021-11-22 15:16:50,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 15:16:50,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-22 15:16:50,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2308 transitions. [2021-11-22 15:16:50,035 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7136672850958565 [2021-11-22 15:16:50,036 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2308 transitions. [2021-11-22 15:16:50,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2308 transitions. [2021-11-22 15:16:50,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:16:50,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2308 transitions. [2021-11-22 15:16:50,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 209.8181818181818) internal successors, (2308), 11 states have internal predecessors, (2308), 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) [2021-11-22 15:16:50,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 294.0) internal successors, (3528), 12 states have internal predecessors, (3528), 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) [2021-11-22 15:16:50,056 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 294.0) internal successors, (3528), 12 states have internal predecessors, (3528), 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) [2021-11-22 15:16:50,056 INFO L186 Difference]: Start difference. First operand has 260 places, 257 transitions, 581 flow. Second operand 11 states and 2308 transitions. [2021-11-22 15:16:50,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 323 transitions, 1064 flow [2021-11-22 15:16:50,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 323 transitions, 1051 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-22 15:16:50,067 INFO L242 Difference]: Finished difference. Result has 270 places, 268 transitions, 661 flow [2021-11-22 15:16:50,068 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=661, PETRI_PLACES=270, PETRI_TRANSITIONS=268} [2021-11-22 15:16:50,069 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 5 predicate places. [2021-11-22 15:16:50,069 INFO L470 AbstractCegarLoop]: Abstraction has has 270 places, 268 transitions, 661 flow [2021-11-22 15:16:50,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 204.33333333333334) internal successors, (1839), 9 states have internal predecessors, (1839), 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) [2021-11-22 15:16:50,070 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:16:50,071 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:50,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-22 15:16:50,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:16:50,296 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:16:50,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:50,296 INFO L85 PathProgramCache]: Analyzing trace with hash 994210303, now seen corresponding path program 2 times [2021-11-22 15:16:50,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:16:50,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198837601] [2021-11-22 15:16:50,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:50,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:16:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 15:16:50,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:16:50,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198837601] [2021-11-22 15:16:50,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198837601] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:16:50,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780906485] [2021-11-22 15:16:50,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 15:16:50,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:16:50,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:16:50,459 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:16:50,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 15:16:50,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-22 15:16:50,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:16:50,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 15:16:50,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:16:51,168 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 15:16:51,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:16:51,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780906485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:16:51,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 15:16:51,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2021-11-22 15:16:51,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135769900] [2021-11-22 15:16:51,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:51,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 15:16:51,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:16:51,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 15:16:51,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-22 15:16:51,179 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 294 [2021-11-22 15:16:51,181 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 268 transitions, 661 flow. Second operand has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 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) [2021-11-22 15:16:51,181 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:16:51,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 294 [2021-11-22 15:16:51,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:16:52,331 INFO L129 PetriNetUnfolder]: 1595/3269 cut-off events. [2021-11-22 15:16:52,331 INFO L130 PetriNetUnfolder]: For 2204/2762 co-relation queries the response was YES. [2021-11-22 15:16:52,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7319 conditions, 3269 events. 1595/3269 cut-off events. For 2204/2762 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 21784 event pairs, 576 based on Foata normal form. 559/3705 useless extension candidates. Maximal degree in co-relation 7307. Up to 1008 conditions per place. [2021-11-22 15:16:52,378 INFO L132 encePairwiseOnDemand]: 283/294 looper letters, 143 selfloop transitions, 14 changer transitions 10/347 dead transitions. [2021-11-22 15:16:52,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 347 transitions, 1236 flow [2021-11-22 15:16:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 15:16:52,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-22 15:16:52,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1844 transitions. [2021-11-22 15:16:52,386 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6969009826152683 [2021-11-22 15:16:52,386 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1844 transitions. [2021-11-22 15:16:52,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1844 transitions. [2021-11-22 15:16:52,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:16:52,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1844 transitions. [2021-11-22 15:16:52,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 204.88888888888889) internal successors, (1844), 9 states have internal predecessors, (1844), 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) [2021-11-22 15:16:52,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 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) [2021-11-22 15:16:52,402 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 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) [2021-11-22 15:16:52,403 INFO L186 Difference]: Start difference. First operand has 270 places, 268 transitions, 661 flow. Second operand 9 states and 1844 transitions. [2021-11-22 15:16:52,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 347 transitions, 1236 flow [2021-11-22 15:16:52,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 347 transitions, 1229 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-22 15:16:52,426 INFO L242 Difference]: Finished difference. Result has 280 places, 275 transitions, 750 flow [2021-11-22 15:16:52,427 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=750, PETRI_PLACES=280, PETRI_TRANSITIONS=275} [2021-11-22 15:16:52,430 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 15 predicate places. [2021-11-22 15:16:52,431 INFO L470 AbstractCegarLoop]: Abstraction has has 280 places, 275 transitions, 750 flow [2021-11-22 15:16:52,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 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) [2021-11-22 15:16:52,433 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:16:52,433 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:52,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-22 15:16:52,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:16:52,644 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:16:52,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:52,645 INFO L85 PathProgramCache]: Analyzing trace with hash 733892861, now seen corresponding path program 3 times [2021-11-22 15:16:52,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:16:52,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935554023] [2021-11-22 15:16:52,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:52,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:16:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 15:16:52,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:16:52,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935554023] [2021-11-22 15:16:52,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935554023] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:16:52,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121291138] [2021-11-22 15:16:52,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 15:16:52,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:16:52,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:16:52,800 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:16:52,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 15:16:52,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-22 15:16:52,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:16:52,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 15:16:52,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:16:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 15:16:53,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:16:53,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121291138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:16:53,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 15:16:53,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2021-11-22 15:16:53,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4270739] [2021-11-22 15:16:53,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:53,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 15:16:53,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:16:53,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 15:16:53,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2021-11-22 15:16:53,420 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 294 [2021-11-22 15:16:53,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 275 transitions, 750 flow. Second operand has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 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) [2021-11-22 15:16:53,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:16:53,423 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 294 [2021-11-22 15:16:53,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:16:55,006 INFO L129 PetriNetUnfolder]: 2356/4851 cut-off events. [2021-11-22 15:16:55,006 INFO L130 PetriNetUnfolder]: For 4753/5565 co-relation queries the response was YES. [2021-11-22 15:16:55,041 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11584 conditions, 4851 events. 2356/4851 cut-off events. For 4753/5565 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 35107 event pairs, 875 based on Foata normal form. 805/5469 useless extension candidates. Maximal degree in co-relation 11566. Up to 1704 conditions per place. [2021-11-22 15:16:55,094 INFO L132 encePairwiseOnDemand]: 283/294 looper letters, 144 selfloop transitions, 14 changer transitions 10/348 dead transitions. [2021-11-22 15:16:55,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 348 transitions, 1387 flow [2021-11-22 15:16:55,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 15:16:55,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-22 15:16:55,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1827 transitions. [2021-11-22 15:16:55,101 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2021-11-22 15:16:55,102 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1827 transitions. [2021-11-22 15:16:55,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1827 transitions. [2021-11-22 15:16:55,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:16:55,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1827 transitions. [2021-11-22 15:16:55,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.0) internal successors, (1827), 9 states have internal predecessors, (1827), 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) [2021-11-22 15:16:55,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 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) [2021-11-22 15:16:55,121 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 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) [2021-11-22 15:16:55,121 INFO L186 Difference]: Start difference. First operand has 280 places, 275 transitions, 750 flow. Second operand 9 states and 1827 transitions. [2021-11-22 15:16:55,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 348 transitions, 1387 flow [2021-11-22 15:16:55,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 348 transitions, 1353 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-11-22 15:16:55,150 INFO L242 Difference]: Finished difference. Result has 286 places, 281 transitions, 837 flow [2021-11-22 15:16:55,151 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=837, PETRI_PLACES=286, PETRI_TRANSITIONS=281} [2021-11-22 15:16:55,154 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 21 predicate places. [2021-11-22 15:16:55,154 INFO L470 AbstractCegarLoop]: Abstraction has has 286 places, 281 transitions, 837 flow [2021-11-22 15:16:55,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 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) [2021-11-22 15:16:55,156 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:16:55,156 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:55,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 15:16:55,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:16:55,384 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:16:55,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:55,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1540889437, now seen corresponding path program 4 times [2021-11-22 15:16:55,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:16:55,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249893814] [2021-11-22 15:16:55,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:55,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:16:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:55,634 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 15:16:55,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:16:55,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249893814] [2021-11-22 15:16:55,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249893814] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:16:55,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965680653] [2021-11-22 15:16:55,635 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-22 15:16:55,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:16:55,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:16:55,640 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:16:55,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 15:16:55,770 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-22 15:16:55,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:16:55,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 15:16:55,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:16:56,410 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 15:16:56,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:16:57,122 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 15:16:57,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965680653] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 15:16:57,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:16:57,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2021-11-22 15:16:57,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802662822] [2021-11-22 15:16:57,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:16:57,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 15:16:57,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:16:57,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 15:16:57,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-11-22 15:16:57,129 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 294 [2021-11-22 15:16:57,132 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 281 transitions, 837 flow. Second operand has 9 states, 9 states have (on average 204.33333333333334) internal successors, (1839), 9 states have internal predecessors, (1839), 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) [2021-11-22 15:16:57,132 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:16:57,132 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 294 [2021-11-22 15:16:57,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:16:58,658 INFO L129 PetriNetUnfolder]: 2667/5224 cut-off events. [2021-11-22 15:16:58,659 INFO L130 PetriNetUnfolder]: For 7304/8271 co-relation queries the response was YES. [2021-11-22 15:16:58,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13525 conditions, 5224 events. 2667/5224 cut-off events. For 7304/8271 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 38142 event pairs, 289 based on Foata normal form. 964/6058 useless extension candidates. Maximal degree in co-relation 13504. Up to 1304 conditions per place. [2021-11-22 15:16:58,750 INFO L132 encePairwiseOnDemand]: 281/294 looper letters, 144 selfloop transitions, 37 changer transitions 0/354 dead transitions. [2021-11-22 15:16:58,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 354 transitions, 1490 flow [2021-11-22 15:16:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 15:16:58,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-22 15:16:58,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2320 transitions. [2021-11-22 15:16:58,760 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.717377860235003 [2021-11-22 15:16:58,760 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2320 transitions. [2021-11-22 15:16:58,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2320 transitions. [2021-11-22 15:16:58,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:16:58,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2320 transitions. [2021-11-22 15:16:58,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 210.9090909090909) internal successors, (2320), 11 states have internal predecessors, (2320), 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) [2021-11-22 15:16:58,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 294.0) internal successors, (3528), 12 states have internal predecessors, (3528), 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) [2021-11-22 15:16:58,782 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 294.0) internal successors, (3528), 12 states have internal predecessors, (3528), 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) [2021-11-22 15:16:58,782 INFO L186 Difference]: Start difference. First operand has 286 places, 281 transitions, 837 flow. Second operand 11 states and 2320 transitions. [2021-11-22 15:16:58,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 354 transitions, 1490 flow [2021-11-22 15:16:58,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 354 transitions, 1456 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-11-22 15:16:58,832 INFO L242 Difference]: Finished difference. Result has 293 places, 293 transitions, 1036 flow [2021-11-22 15:16:58,833 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1036, PETRI_PLACES=293, PETRI_TRANSITIONS=293} [2021-11-22 15:16:58,834 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 28 predicate places. [2021-11-22 15:16:58,834 INFO L470 AbstractCegarLoop]: Abstraction has has 293 places, 293 transitions, 1036 flow [2021-11-22 15:16:58,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 204.33333333333334) internal successors, (1839), 9 states have internal predecessors, (1839), 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) [2021-11-22 15:16:58,836 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:16:58,836 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:16:58,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 15:16:59,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-22 15:16:59,052 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:16:59,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:16:59,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2134251955, now seen corresponding path program 5 times [2021-11-22 15:16:59,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:16:59,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015617107] [2021-11-22 15:16:59,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:16:59,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:16:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:16:59,222 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 15:16:59,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:16:59,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015617107] [2021-11-22 15:16:59,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015617107] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:16:59,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984367323] [2021-11-22 15:16:59,228 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-22 15:16:59,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:16:59,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:16:59,232 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:16:59,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 15:16:59,423 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 15:16:59,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:16:59,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-22 15:16:59,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:16:59,913 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 15:16:59,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:17:00,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 15:17:00,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984367323] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:17:00,373 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 15:17:00,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 16 [2021-11-22 15:17:00,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293960714] [2021-11-22 15:17:00,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 15:17:00,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-22 15:17:00,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:17:00,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-22 15:17:00,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-11-22 15:17:00,381 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 294 [2021-11-22 15:17:00,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 293 transitions, 1036 flow. Second operand has 16 states, 16 states have (on average 199.3125) internal successors, (3189), 16 states have internal predecessors, (3189), 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) [2021-11-22 15:17:00,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:17:00,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 294 [2021-11-22 15:17:00,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:17:05,938 INFO L129 PetriNetUnfolder]: 10255/19257 cut-off events. [2021-11-22 15:17:05,938 INFO L130 PetriNetUnfolder]: For 36959/37273 co-relation queries the response was YES. [2021-11-22 15:17:06,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55679 conditions, 19257 events. 10255/19257 cut-off events. For 36959/37273 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 158881 event pairs, 745 based on Foata normal form. 20/19204 useless extension candidates. Maximal degree in co-relation 55656. Up to 1909 conditions per place. [2021-11-22 15:17:06,247 INFO L132 encePairwiseOnDemand]: 265/294 looper letters, 334 selfloop transitions, 134 changer transitions 0/635 dead transitions. [2021-11-22 15:17:06,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 635 transitions, 3612 flow [2021-11-22 15:17:06,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-22 15:17:06,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-11-22 15:17:06,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 5177 transitions. [2021-11-22 15:17:06,267 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7043537414965987 [2021-11-22 15:17:06,267 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 5177 transitions. [2021-11-22 15:17:06,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 5177 transitions. [2021-11-22 15:17:06,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:17:06,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 5177 transitions. [2021-11-22 15:17:06,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 207.08) internal successors, (5177), 25 states have internal predecessors, (5177), 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) [2021-11-22 15:17:06,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 294.0) internal successors, (7644), 26 states have internal predecessors, (7644), 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) [2021-11-22 15:17:06,307 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 294.0) internal successors, (7644), 26 states have internal predecessors, (7644), 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) [2021-11-22 15:17:06,307 INFO L186 Difference]: Start difference. First operand has 293 places, 293 transitions, 1036 flow. Second operand 25 states and 5177 transitions. [2021-11-22 15:17:06,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 635 transitions, 3612 flow [2021-11-22 15:17:06,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 635 transitions, 3516 flow, removed 16 selfloop flow, removed 6 redundant places. [2021-11-22 15:17:06,980 INFO L242 Difference]: Finished difference. Result has 327 places, 382 transitions, 2264 flow [2021-11-22 15:17:06,981 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=1000, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2264, PETRI_PLACES=327, PETRI_TRANSITIONS=382} [2021-11-22 15:17:06,984 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 62 predicate places. [2021-11-22 15:17:06,985 INFO L470 AbstractCegarLoop]: Abstraction has has 327 places, 382 transitions, 2264 flow [2021-11-22 15:17:06,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 199.3125) internal successors, (3189), 16 states have internal predecessors, (3189), 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) [2021-11-22 15:17:06,986 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:17:06,987 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:17:07,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-22 15:17:07,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:17:07,204 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:17:07,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:17:07,205 INFO L85 PathProgramCache]: Analyzing trace with hash 982030349, now seen corresponding path program 6 times [2021-11-22 15:17:07,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:17:07,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185171547] [2021-11-22 15:17:07,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:17:07,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:17:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:17:07,378 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 15:17:07,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:17:07,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185171547] [2021-11-22 15:17:07,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185171547] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:17:07,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60367937] [2021-11-22 15:17:07,379 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-22 15:17:07,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:17:07,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:17:07,388 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:17:07,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-22 15:17:07,511 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-11-22 15:17:07,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:17:07,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 15:17:07,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:17:08,095 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 15:17:08,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:17:08,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60367937] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:17:08,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 15:17:08,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2021-11-22 15:17:08,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190364813] [2021-11-22 15:17:08,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:17:08,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 15:17:08,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:17:08,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 15:17:08,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2021-11-22 15:17:08,103 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 294 [2021-11-22 15:17:08,105 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 382 transitions, 2264 flow. Second operand has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 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) [2021-11-22 15:17:08,105 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 15:17:08,105 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 294 [2021-11-22 15:17:08,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 15:17:10,506 INFO L129 PetriNetUnfolder]: 4062/8531 cut-off events. [2021-11-22 15:17:10,506 INFO L130 PetriNetUnfolder]: For 35178/36279 co-relation queries the response was YES. [2021-11-22 15:17:10,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28969 conditions, 8531 events. 4062/8531 cut-off events. For 35178/36279 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 68784 event pairs, 1359 based on Foata normal form. 69/8388 useless extension candidates. Maximal degree in co-relation 28930. Up to 3043 conditions per place. [2021-11-22 15:17:10,673 INFO L132 encePairwiseOnDemand]: 283/294 looper letters, 200 selfloop transitions, 39 changer transitions 7/443 dead transitions. [2021-11-22 15:17:10,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 443 transitions, 3025 flow [2021-11-22 15:17:10,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 15:17:10,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-22 15:17:10,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1833 transitions. [2021-11-22 15:17:10,681 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6927437641723356 [2021-11-22 15:17:10,681 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1833 transitions. [2021-11-22 15:17:10,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1833 transitions. [2021-11-22 15:17:10,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:17:10,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1833 transitions. [2021-11-22 15:17:10,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.66666666666666) internal successors, (1833), 9 states have internal predecessors, (1833), 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) [2021-11-22 15:17:10,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 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) [2021-11-22 15:17:10,696 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 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) [2021-11-22 15:17:10,696 INFO L186 Difference]: Start difference. First operand has 327 places, 382 transitions, 2264 flow. Second operand 9 states and 1833 transitions. [2021-11-22 15:17:10,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 443 transitions, 3025 flow [2021-11-22 15:17:10,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 443 transitions, 2964 flow, removed 20 selfloop flow, removed 6 redundant places. [2021-11-22 15:17:10,991 INFO L242 Difference]: Finished difference. Result has 334 places, 387 transitions, 2391 flow [2021-11-22 15:17:10,992 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=2203, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2391, PETRI_PLACES=334, PETRI_TRANSITIONS=387} [2021-11-22 15:17:10,993 INFO L334 CegarLoopForPetriNet]: 265 programPoint places, 69 predicate places. [2021-11-22 15:17:10,993 INFO L470 AbstractCegarLoop]: Abstraction has has 334 places, 387 transitions, 2391 flow [2021-11-22 15:17:10,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 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) [2021-11-22 15:17:10,994 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 15:17:10,995 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:17:11,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-22 15:17:11,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:17:11,208 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 15:17:11,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:17:11,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1318242584, now seen corresponding path program 1 times [2021-11-22 15:17:11,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:17:11,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972925484] [2021-11-22 15:17:11,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:17:11,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:17:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:17:14,593 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 15:17:14,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:17:14,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972925484] [2021-11-22 15:17:14,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972925484] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:17:14,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689450019] [2021-11-22 15:17:14,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:17:14,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:17:14,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:17:14,599 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:17:14,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cdf2bee-ca33-4b05-875c-e9aa27fde50b/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-22 15:17:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:17:14,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 106 conjunts are in the unsatisfiable core [2021-11-22 15:17:14,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:17:14,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 15:17:14,903 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 15:17:14,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-22 15:17:14,991 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-22 15:17:14,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2021-11-22 15:17:15,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:15,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:15,701 INFO L354 Elim1Store]: treesize reduction 42, result has 19.2 percent of original size [2021-11-22 15:17:15,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 37 [2021-11-22 15:17:16,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-22 15:17:17,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:17,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:17,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:17,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:17,629 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-11-22 15:17:17,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 32 treesize of output 49 [2021-11-22 15:17:18,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-22 15:17:19,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:19,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:19,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:19,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:19,699 INFO L354 Elim1Store]: treesize reduction 114, result has 28.7 percent of original size [2021-11-22 15:17:19,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 37 treesize of output 69 [2021-11-22 15:17:20,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-22 15:17:22,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:22,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:22,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:22,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 15:17:22,905 INFO L354 Elim1Store]: treesize reduction 48, result has 34.2 percent of original size [2021-11-22 15:17:22,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 36 treesize of output 46 [2021-11-22 15:17:23,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-22 15:17:25,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-22 15:17:25,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-22 15:17:26,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-22 15:17:26,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2021-11-22 15:17:27,732 INFO L354 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2021-11-22 15:17:27,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 59 treesize of output 56 [2021-11-22 15:17:31,970 INFO L354 Elim1Store]: treesize reduction 206, result has 3.3 percent of original size [2021-11-22 15:17:31,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 51 [2021-11-22 15:17:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 15:17:32,091 INFO L328 TraceCheckSpWp]: Computing backward predicates...