./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:38:02,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:38:02,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:38:02,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:38:02,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:38:02,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:38:02,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:38:02,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:38:02,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:38:02,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:38:02,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:38:02,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:38:02,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:38:02,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:38:02,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:38:02,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:38:02,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:38:02,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:38:02,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:38:02,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:38:02,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:38:02,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:38:02,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:38:02,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:38:02,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:38:02,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:38:02,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:38:02,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:38:02,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:38:02,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:38:02,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:38:02,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:38:02,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:38:02,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:38:02,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:38:02,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:38:02,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:38:02,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:38:02,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:38:02,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:38:02,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:38:02,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 10:38:02,660 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:38:02,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:38:02,661 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:38:02,662 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:38:02,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:38:02,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:38:02,672 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:38:02,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:38:02,673 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:38:02,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:38:02,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:38:02,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:38:02,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:38:02,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:38:02,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:38:02,676 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:38:02,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:38:02,677 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:38:02,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:38:02,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:38:02,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:38:02,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:38:02,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:38:02,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:38:02,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:38:02,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:38:02,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:38:02,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 10:38:02,680 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 10:38:02,682 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 10:38:02,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:38:02,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:38:02,683 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_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2021-11-09 10:38:03,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:38:03,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:38:03,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:38:03,103 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:38:03,104 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:38:03,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2021-11-09 10:38:03,196 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/data/a21c311ff/2ecd1f034f5041e18acab4ecbb6483e8/FLAG05c698a3f [2021-11-09 10:38:03,923 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:38:03,929 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2021-11-09 10:38:03,968 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/data/a21c311ff/2ecd1f034f5041e18acab4ecbb6483e8/FLAG05c698a3f [2021-11-09 10:38:04,135 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/data/a21c311ff/2ecd1f034f5041e18acab4ecbb6483e8 [2021-11-09 10:38:04,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:38:04,143 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:38:04,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:38:04,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:38:04,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:38:04,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:38:04" (1/1) ... [2021-11-09 10:38:04,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51341a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:04, skipping insertion in model container [2021-11-09 10:38:04,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:38:04" (1/1) ... [2021-11-09 10:38:04,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:38:04,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:38:04,864 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[33021,33034] [2021-11-09 10:38:05,060 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[44590,44603] [2021-11-09 10:38:05,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:38:05,085 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:38:05,125 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[33021,33034] [2021-11-09 10:38:05,216 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[44590,44603] [2021-11-09 10:38:05,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:38:05,292 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:38:05,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:05 WrapperNode [2021-11-09 10:38:05,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:38:05,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:38:05,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:38:05,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:38:05,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:05" (1/1) ... [2021-11-09 10:38:05,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:05" (1/1) ... [2021-11-09 10:38:05,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:38:05,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:38:05,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:38:05,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:38:05,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:05" (1/1) ... [2021-11-09 10:38:05,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:05" (1/1) ... [2021-11-09 10:38:05,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:05" (1/1) ... [2021-11-09 10:38:05,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:05" (1/1) ... [2021-11-09 10:38:05,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:05" (1/1) ... [2021-11-09 10:38:05,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:05" (1/1) ... [2021-11-09 10:38:05,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:05" (1/1) ... [2021-11-09 10:38:05,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:38:05,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:38:05,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:38:05,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:38:05,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:05" (1/1) ... [2021-11-09 10:38:05,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:38:05,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:05,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:38:05,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:38:05,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 10:38:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 10:38:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 10:38:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 10:38:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:38:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-09 10:38:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 10:38:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 10:38:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:38:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:38:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:38:07,553 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:38:07,554 INFO L299 CfgBuilder]: Removed 85 assume(true) statements. [2021-11-09 10:38:07,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:38:07 BoogieIcfgContainer [2021-11-09 10:38:07,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:38:07,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:38:07,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:38:07,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:38:07,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:38:04" (1/3) ... [2021-11-09 10:38:07,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ec47ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:38:07, skipping insertion in model container [2021-11-09 10:38:07,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:05" (2/3) ... [2021-11-09 10:38:07,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ec47ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:38:07, skipping insertion in model container [2021-11-09 10:38:07,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:38:07" (3/3) ... [2021-11-09 10:38:07,573 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-1.i [2021-11-09 10:38:07,580 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:38:07,580 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-09 10:38:07,640 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:38:07,649 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 10:38:07,649 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-09 10:38:07,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 195 states have (on average 1.7230769230769232) internal successors, (336), 201 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:07,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-09 10:38:07,683 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:07,683 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:07,684 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:07,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:07,692 INFO L85 PathProgramCache]: Analyzing trace with hash 239232295, now seen corresponding path program 1 times [2021-11-09 10:38:07,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:07,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269703412] [2021-11-09 10:38:07,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:07,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:07,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:07,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:07,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269703412] [2021-11-09 10:38:07,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269703412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:07,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:07,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 10:38:07,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125766715] [2021-11-09 10:38:07,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 10:38:07,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:07,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 10:38:07,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 10:38:07,986 INFO L87 Difference]: Start difference. First operand has 202 states, 195 states have (on average 1.7230769230769232) internal successors, (336), 201 states have internal predecessors, (336), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:08,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:08,050 INFO L93 Difference]: Finished difference Result 402 states and 670 transitions. [2021-11-09 10:38:08,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 10:38:08,052 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) Word has length 9 [2021-11-09 10:38:08,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:08,065 INFO L225 Difference]: With dead ends: 402 [2021-11-09 10:38:08,066 INFO L226 Difference]: Without dead ends: 198 [2021-11-09 10:38:08,069 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 10:38:08,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-09 10:38:08,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-11-09 10:38:08,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 192 states have (on average 1.3489583333333333) internal successors, (259), 197 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:08,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 259 transitions. [2021-11-09 10:38:08,124 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 259 transitions. Word has length 9 [2021-11-09 10:38:08,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:08,125 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 259 transitions. [2021-11-09 10:38:08,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:08,126 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 259 transitions. [2021-11-09 10:38:08,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-09 10:38:08,127 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:08,128 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:08,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 10:38:08,129 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:08,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:08,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1042319138, now seen corresponding path program 1 times [2021-11-09 10:38:08,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:08,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040975567] [2021-11-09 10:38:08,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:08,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:08,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:08,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040975567] [2021-11-09 10:38:08,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040975567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:08,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:08,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:38:08,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363183410] [2021-11-09 10:38:08,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:08,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:08,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:08,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:08,244 INFO L87 Difference]: Start difference. First operand 198 states and 259 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:08,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:08,832 INFO L93 Difference]: Finished difference Result 445 states and 582 transitions. [2021-11-09 10:38:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:08,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) Word has length 12 [2021-11-09 10:38:08,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:08,838 INFO L225 Difference]: With dead ends: 445 [2021-11-09 10:38:08,838 INFO L226 Difference]: Without dead ends: 337 [2021-11-09 10:38:08,840 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:08,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-11-09 10:38:08,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 200. [2021-11-09 10:38:08,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 194 states have (on average 1.3453608247422681) internal successors, (261), 199 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:08,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 261 transitions. [2021-11-09 10:38:08,866 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 261 transitions. Word has length 12 [2021-11-09 10:38:08,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:08,867 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 261 transitions. [2021-11-09 10:38:08,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:08,868 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 261 transitions. [2021-11-09 10:38:08,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-09 10:38:08,871 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:08,872 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:08,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 10:38:08,873 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:08,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:08,874 INFO L85 PathProgramCache]: Analyzing trace with hash 168111628, now seen corresponding path program 1 times [2021-11-09 10:38:08,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:08,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611374429] [2021-11-09 10:38:08,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:08,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:08,910 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:38:08,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2022424810] [2021-11-09 10:38:08,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:08,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:08,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:08,914 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:08,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 10:38:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:09,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:09,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:09,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:09,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:09,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611374429] [2021-11-09 10:38:09,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:38:09,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022424810] [2021-11-09 10:38:09,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022424810] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:09,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:09,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:09,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012126382] [2021-11-09 10:38:09,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:09,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:09,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:09,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:09,452 INFO L87 Difference]: Start difference. First operand 200 states and 261 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:09,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:09,531 INFO L93 Difference]: Finished difference Result 417 states and 549 transitions. [2021-11-09 10:38:09,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:09,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) Word has length 64 [2021-11-09 10:38:09,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:09,534 INFO L225 Difference]: With dead ends: 417 [2021-11-09 10:38:09,534 INFO L226 Difference]: Without dead ends: 221 [2021-11-09 10:38:09,536 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:09,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-11-09 10:38:09,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 220. [2021-11-09 10:38:09,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 214 states have (on average 1.3130841121495327) internal successors, (281), 219 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:09,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 281 transitions. [2021-11-09 10:38:09,553 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 281 transitions. Word has length 64 [2021-11-09 10:38:09,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:09,553 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 281 transitions. [2021-11-09 10:38:09,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:09,554 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 281 transitions. [2021-11-09 10:38:09,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-09 10:38:09,557 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:09,557 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:09,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:09,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:09,782 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:09,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:09,783 INFO L85 PathProgramCache]: Analyzing trace with hash 521200010, now seen corresponding path program 1 times [2021-11-09 10:38:09,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:09,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975080507] [2021-11-09 10:38:09,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:09,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:09,813 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:38:09,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2066216706] [2021-11-09 10:38:09,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:09,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:09,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:09,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:09,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 10:38:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:10,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:10,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:10,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:10,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:10,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975080507] [2021-11-09 10:38:10,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:38:10,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066216706] [2021-11-09 10:38:10,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066216706] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:10,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:10,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:38:10,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640716594] [2021-11-09 10:38:10,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:10,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:10,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:10,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:10,239 INFO L87 Difference]: Start difference. First operand 220 states and 281 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:10,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:10,331 INFO L93 Difference]: Finished difference Result 428 states and 550 transitions. [2021-11-09 10:38:10,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:10,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) Word has length 64 [2021-11-09 10:38:10,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:10,333 INFO L225 Difference]: With dead ends: 428 [2021-11-09 10:38:10,334 INFO L226 Difference]: Without dead ends: 212 [2021-11-09 10:38:10,336 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:10,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-09 10:38:10,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 206. [2021-11-09 10:38:10,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 200 states have (on average 1.3) internal successors, (260), 205 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:10,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 260 transitions. [2021-11-09 10:38:10,381 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 260 transitions. Word has length 64 [2021-11-09 10:38:10,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:10,382 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 260 transitions. [2021-11-09 10:38:10,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:10,382 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 260 transitions. [2021-11-09 10:38:10,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-09 10:38:10,384 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:10,384 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:10,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:10,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:10,610 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:10,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:10,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1012352744, now seen corresponding path program 1 times [2021-11-09 10:38:10,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:10,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588797525] [2021-11-09 10:38:10,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:10,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:10,632 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:38:10,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241080] [2021-11-09 10:38:10,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:10,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:10,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:10,634 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:10,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 10:38:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:10,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 10:38:10,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:11,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:11,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:11,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588797525] [2021-11-09 10:38:11,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:38:11,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241080] [2021-11-09 10:38:11,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:11,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:11,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:11,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153680485] [2021-11-09 10:38:11,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:11,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:11,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:11,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:11,328 INFO L87 Difference]: Start difference. First operand 206 states and 260 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:11,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:11,454 INFO L93 Difference]: Finished difference Result 542 states and 683 transitions. [2021-11-09 10:38:11,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:11,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) Word has length 64 [2021-11-09 10:38:11,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:11,459 INFO L225 Difference]: With dead ends: 542 [2021-11-09 10:38:11,459 INFO L226 Difference]: Without dead ends: 340 [2021-11-09 10:38:11,460 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:11,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-11-09 10:38:11,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 312. [2021-11-09 10:38:11,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 306 states have (on average 1.2843137254901962) internal successors, (393), 311 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:11,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 393 transitions. [2021-11-09 10:38:11,475 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 393 transitions. Word has length 64 [2021-11-09 10:38:11,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:11,476 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 393 transitions. [2021-11-09 10:38:11,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:11,477 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 393 transitions. [2021-11-09 10:38:11,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-09 10:38:11,479 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:11,479 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:11,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:11,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:11,695 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:11,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash -147792665, now seen corresponding path program 1 times [2021-11-09 10:38:11,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:11,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410042499] [2021-11-09 10:38:11,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:11,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:11,719 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:38:11,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1711195303] [2021-11-09 10:38:11,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:11,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:11,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:11,721 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:11,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 10:38:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:12,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:12,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:12,325 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 11 treesize of output 7 [2021-11-09 10:38:12,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-09 10:38:12,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-09 10:38:12,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:12,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410042499] [2021-11-09 10:38:12,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:38:12,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711195303] [2021-11-09 10:38:12,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711195303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:12,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:12,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:38:12,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538056624] [2021-11-09 10:38:12,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:12,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:12,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:12,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:12,366 INFO L87 Difference]: Start difference. First operand 312 states and 393 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:12,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:12,805 INFO L93 Difference]: Finished difference Result 421 states and 537 transitions. [2021-11-09 10:38:12,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:12,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) Word has length 71 [2021-11-09 10:38:12,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:12,810 INFO L225 Difference]: With dead ends: 421 [2021-11-09 10:38:12,810 INFO L226 Difference]: Without dead ends: 396 [2021-11-09 10:38:12,811 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:12,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-11-09 10:38:12,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 314. [2021-11-09 10:38:12,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 308 states have (on average 1.2824675324675325) internal successors, (395), 313 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:12,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 395 transitions. [2021-11-09 10:38:12,826 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 395 transitions. Word has length 71 [2021-11-09 10:38:12,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:12,827 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 395 transitions. [2021-11-09 10:38:12,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:12,828 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 395 transitions. [2021-11-09 10:38:12,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-09 10:38:12,830 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:12,830 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:12,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:13,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-09 10:38:13,055 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:13,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:13,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2000986198, now seen corresponding path program 1 times [2021-11-09 10:38:13,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:13,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536133867] [2021-11-09 10:38:13,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:13,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:13,080 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:38:13,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697738519] [2021-11-09 10:38:13,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:13,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:13,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:13,083 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:13,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 10:38:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:13,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:13,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:13,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-09 10:38:13,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:13,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536133867] [2021-11-09 10:38:13,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:38:13,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697738519] [2021-11-09 10:38:13,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697738519] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:13,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:13,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:13,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269411481] [2021-11-09 10:38:13,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:13,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:13,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:13,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:13,879 INFO L87 Difference]: Start difference. First operand 314 states and 395 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:13,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:13,972 INFO L93 Difference]: Finished difference Result 525 states and 681 transitions. [2021-11-09 10:38:13,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:13,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) Word has length 103 [2021-11-09 10:38:13,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:13,976 INFO L225 Difference]: With dead ends: 525 [2021-11-09 10:38:13,976 INFO L226 Difference]: Without dead ends: 356 [2021-11-09 10:38:13,977 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:13,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-11-09 10:38:13,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 354. [2021-11-09 10:38:13,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 348 states have (on average 1.25) internal successors, (435), 353 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:13,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 435 transitions. [2021-11-09 10:38:13,993 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 435 transitions. Word has length 103 [2021-11-09 10:38:13,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:13,994 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 435 transitions. [2021-11-09 10:38:13,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:13,995 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 435 transitions. [2021-11-09 10:38:13,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-09 10:38:13,997 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:13,997 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:14,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:14,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:14,219 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:14,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:14,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1973776046, now seen corresponding path program 1 times [2021-11-09 10:38:14,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:14,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393598860] [2021-11-09 10:38:14,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:14,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:14,262 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:38:14,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724551418] [2021-11-09 10:38:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:14,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:14,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:14,272 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:14,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-09 10:38:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:14,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:14,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:14,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-09 10:38:14,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:14,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393598860] [2021-11-09 10:38:14,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:38:14,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724551418] [2021-11-09 10:38:14,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724551418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:14,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:14,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:38:14,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344487983] [2021-11-09 10:38:14,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:14,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:14,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:14,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:14,959 INFO L87 Difference]: Start difference. First operand 354 states and 435 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:15,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:15,058 INFO L93 Difference]: Finished difference Result 540 states and 676 transitions. [2021-11-09 10:38:15,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:15,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) Word has length 103 [2021-11-09 10:38:15,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:15,062 INFO L225 Difference]: With dead ends: 540 [2021-11-09 10:38:15,062 INFO L226 Difference]: Without dead ends: 331 [2021-11-09 10:38:15,063 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:15,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2021-11-09 10:38:15,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 326. [2021-11-09 10:38:15,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 320 states have (on average 1.228125) internal successors, (393), 325 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:15,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 393 transitions. [2021-11-09 10:38:15,078 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 393 transitions. Word has length 103 [2021-11-09 10:38:15,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:15,079 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 393 transitions. [2021-11-09 10:38:15,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:15,079 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 393 transitions. [2021-11-09 10:38:15,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-09 10:38:15,081 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:15,081 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:15,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:15,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:15,299 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:15,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:15,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1090927200, now seen corresponding path program 1 times [2021-11-09 10:38:15,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:15,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519428464] [2021-11-09 10:38:15,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:15,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:15,344 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:38:15,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122297470] [2021-11-09 10:38:15,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:15,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:15,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:15,347 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:15,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-09 10:38:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:15,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 10:38:15,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:16,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:16,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:16,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519428464] [2021-11-09 10:38:16,122 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:38:16,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122297470] [2021-11-09 10:38:16,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122297470] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:16,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:16,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:38:16,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648904669] [2021-11-09 10:38:16,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:16,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:16,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:16,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:16,125 INFO L87 Difference]: Start difference. First operand 326 states and 393 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:16,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:16,469 INFO L93 Difference]: Finished difference Result 740 states and 900 transitions. [2021-11-09 10:38:16,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:38:16,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) Word has length 103 [2021-11-09 10:38:16,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:16,474 INFO L225 Difference]: With dead ends: 740 [2021-11-09 10:38:16,475 INFO L226 Difference]: Without dead ends: 462 [2021-11-09 10:38:16,476 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:16,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-11-09 10:38:16,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 410. [2021-11-09 10:38:16,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 404 states have (on average 1.2301980198019802) internal successors, (497), 409 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:16,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 497 transitions. [2021-11-09 10:38:16,497 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 497 transitions. Word has length 103 [2021-11-09 10:38:16,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:16,497 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 497 transitions. [2021-11-09 10:38:16,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:16,498 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 497 transitions. [2021-11-09 10:38:16,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-09 10:38:16,499 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:16,500 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:16,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:16,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-09 10:38:16,723 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:16,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:16,723 INFO L85 PathProgramCache]: Analyzing trace with hash 541561274, now seen corresponding path program 1 times [2021-11-09 10:38:16,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:16,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874390161] [2021-11-09 10:38:16,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:16,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:16,772 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:38:16,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307558057] [2021-11-09 10:38:16,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:16,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:38:16,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:16,791 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:38:16,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-09 10:38:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:17,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-09 10:38:17,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:17,194 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 11 treesize of output 7 [2021-11-09 10:38:17,272 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 [2021-11-09 10:38:17,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:17,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:17,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:17,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2021-11-09 10:38:18,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 57 [2021-11-09 10:38:18,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-09 10:38:18,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:18,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 54 [2021-11-09 10:38:19,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:19,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:19,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:19,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:19,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:19,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:19,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:19,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2021-11-09 10:38:19,088 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 13 treesize of output 9 [2021-11-09 10:38:19,106 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 27 treesize of output 23 [2021-11-09 10:38:19,121 INFO L354 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size [2021-11-09 10:38:19,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-11-09 10:38:21,421 INFO L354 Elim1Store]: treesize reduction 364, result has 11.9 percent of original size [2021-11-09 10:38:21,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2832 treesize of output 2281 [2021-11-09 10:38:21,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:21,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:21,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:21,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-09 10:38:29,115 WARN L207 SmtUtils]: Spent 7.61 s on a formula simplification. DAG size of input: 354 DAG size of output: 88 [2021-11-09 10:38:29,116 INFO L354 Elim1Store]: treesize reduction 7776, result has 3.0 percent of original size [2021-11-09 10:38:29,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 3301 treesize of output 1804 [2021-11-09 10:38:29,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:29,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874390161] [2021-11-09 10:38:29,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-09 10:38:29,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307558057] [2021-11-09 10:38:29,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Some non-self update cases but no top-level DER relation [2021-11-09 10:38:29,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:29,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-09 10:38:29,231 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-09 10:38:29,231 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-09 10:38:29,240 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:38:29,243 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:38:29,243 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:38:29,243 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:38:29,244 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:38:29,244 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:38:29,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:29,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-09 10:38:29,462 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:29,465 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 10:38:29,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:38:29 BoogieIcfgContainer [2021-11-09 10:38:29,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 10:38:29,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 10:38:29,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 10:38:29,510 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 10:38:29,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:38:07" (3/4) ... [2021-11-09 10:38:29,524 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 10:38:29,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 10:38:29,528 INFO L168 Benchmark]: Toolchain (without parser) took 25384.58 ms. Allocated memory was 83.9 MB in the beginning and 172.0 MB in the end (delta: 88.1 MB). Free memory was 45.8 MB in the beginning and 81.7 MB in the end (delta: -35.9 MB). Peak memory consumption was 52.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:38:29,528 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 83.9 MB. Free memory was 64.4 MB in the beginning and 64.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:38:29,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1146.13 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 45.6 MB in the beginning and 57.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-11-09 10:38:29,529 INFO L168 Benchmark]: Boogie Procedure Inliner took 165.82 ms. Allocated memory is still 102.8 MB. Free memory was 57.0 MB in the beginning and 50.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 10:38:29,530 INFO L168 Benchmark]: Boogie Preprocessor took 149.55 ms. Allocated memory is still 102.8 MB. Free memory was 50.2 MB in the beginning and 42.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-09 10:38:29,531 INFO L168 Benchmark]: RCFGBuilder took 1945.66 ms. Allocated memory is still 102.8 MB. Free memory was 42.3 MB in the beginning and 49.8 MB in the end (delta: -7.5 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-11-09 10:38:29,531 INFO L168 Benchmark]: TraceAbstraction took 21945.93 ms. Allocated memory was 102.8 MB in the beginning and 172.0 MB in the end (delta: 69.2 MB). Free memory was 49.2 MB in the beginning and 82.8 MB in the end (delta: -33.6 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. [2021-11-09 10:38:29,532 INFO L168 Benchmark]: Witness Printer took 17.63 ms. Allocated memory is still 172.0 MB. Free memory was 82.8 MB in the beginning and 81.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:38:29,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 83.9 MB. Free memory was 64.4 MB in the beginning and 64.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1146.13 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 45.6 MB in the beginning and 57.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 165.82 ms. Allocated memory is still 102.8 MB. Free memory was 57.0 MB in the beginning and 50.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 149.55 ms. Allocated memory is still 102.8 MB. Free memory was 50.2 MB in the beginning and 42.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1945.66 ms. Allocated memory is still 102.8 MB. Free memory was 42.3 MB in the beginning and 49.8 MB in the end (delta: -7.5 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21945.93 ms. Allocated memory was 102.8 MB in the beginning and 172.0 MB in the end (delta: 69.2 MB). Free memory was 49.2 MB in the beginning and 82.8 MB in the end (delta: -33.6 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. * Witness Printer took 17.63 ms. Allocated memory is still 172.0 MB. Free memory was 82.8 MB in the beginning and 81.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 750]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of bitwiseXor at line 745, overapproximation of bitwiseAnd at line 745. Possible FailurePath: [L706] int count_int_int = 0; [L733] int i; [L734] example_user_t *user, *tmp, *users=((void *)0); [L735] i=0 [L735] EXPR \read(i) [L735] COND TRUE i<10 [L736] user = (example_user_t*)malloc(sizeof(example_user_t)) [L737] COND FALSE !(user == ((void *)0)) [L740] EXPR \read(i) [L740] user->id = i [L741] EXPR \read(i) [L741] EXPR \read(i) [L741] user->cookie = i*i [L742] unsigned _ha_hashv; [L742] unsigned _hj_i,_hj_j,_hj_k; [L742] unsigned const char *_hj_key=(unsigned const char*)(&((user)->id)); [L742] _ha_hashv = 0xfeedbeefu [L742] EXPR _hj_j = 0x9e3779b9u [L742] _hj_i = _hj_j = 0x9e3779b9u [L742] _hj_k = (unsigned)(sizeof(int)) [L742] COND FALSE !(_hj_k >= 12U) [L742] _ha_hashv += (unsigned)(sizeof(int)) [L742] case 11: [L742] case 10: [L742] case 9: [L742] case 8: [L742] case 7: [L742] case 6: [L742] case 5: [L742] case 4: [L742] EXPR _hj_key[3] [L742] _hj_i += ( (unsigned)_hj_key[3] << 24 ) [L742] case 3: [L742] EXPR _hj_key[2] [L742] _hj_i += ( (unsigned)_hj_key[2] << 16 ) [L742] case 2: [L742] EXPR _hj_key[1] [L742] _hj_i += ( (unsigned)_hj_key[1] << 8 ) [L742] case 1: [L742] EXPR _hj_key[0] [L742] _hj_i += _hj_key[0] [L742] _hj_i -= _hj_j [L742] _hj_i -= _ha_hashv [L742] _hj_i ^= ( _ha_hashv >> 13 ) [L742] _hj_j -= _ha_hashv [L742] _hj_j -= _hj_i [L742] _hj_j ^= ( _hj_i << 8 ) [L742] _ha_hashv -= _hj_i [L742] _ha_hashv -= _hj_j [L742] _ha_hashv ^= ( _hj_j >> 13 ) [L742] _hj_i -= _hj_j [L742] _hj_i -= _ha_hashv [L742] _hj_i ^= ( _ha_hashv >> 12 ) [L742] _hj_j -= _ha_hashv [L742] _hj_j -= _hj_i [L742] _hj_j ^= ( _hj_i << 16 ) [L742] _ha_hashv -= _hj_i [L742] _ha_hashv -= _hj_j [L742] _ha_hashv ^= ( _hj_j >> 5 ) [L742] _hj_i -= _hj_j [L742] _hj_i -= _ha_hashv [L742] _hj_i ^= ( _ha_hashv >> 3 ) [L742] _hj_j -= _ha_hashv [L742] _hj_j -= _hj_i [L742] _hj_j ^= ( _hj_i << 10 ) [L742] _ha_hashv -= _hj_i [L742] _ha_hashv -= _hj_j [L742] _ha_hashv ^= ( _hj_j >> 15 ) [L742] (user)->hh.hashv = (_ha_hashv) [L742] (user)->hh.key = (char*) (&((user)->id)) [L742] (user)->hh.keylen = (unsigned) (sizeof(int)) [L742] COND TRUE !(users) [L742] (user)->hh.next = ((void *)0) [L742] (user)->hh.prev = ((void *)0) [L742] (user)->hh.tbl = (UT_hash_table*)malloc(sizeof(UT_hash_table)) [L742] EXPR (user)->hh.tbl [L742] COND FALSE !(!(user)->hh.tbl) [L742] (user)->hh.tbl [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->tail = &((user)->hh) [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->num_buckets = 32U [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->log2_num_buckets = 5U [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->hho = (char*)(&(user)->hh) - (char*)(user) [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->buckets = (UT_hash_bucket*)malloc(32U * sizeof(struct UT_hash_bucket)) [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->signature = 0xa0111fe1u [L742] EXPR (user)->hh.tbl [L742] EXPR (user)->hh.tbl->buckets [L742] COND FALSE !(!(user)->hh.tbl->buckets) [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->buckets [L742] (users) = (user) [L742] unsigned _ha_bkt; [L742] EXPR (users)->hh.tbl [L742] EXPR (users)->hh.tbl->num_items [L742] (users)->hh.tbl->num_items++ [L742] EXPR (users)->hh.tbl [L742] EXPR (users)->hh.tbl->num_buckets [L742] _ha_bkt = ((_ha_hashv) & (((users)->hh.tbl->num_buckets) - 1U)) [L742] EXPR (users)->hh.tbl [L742] EXPR (users)->hh.tbl->buckets [L742] UT_hash_bucket *_ha_head = &((users)->hh.tbl->buckets[_ha_bkt]); [L742] EXPR _ha_head->count [L742] _ha_head->count++ [L742] EXPR _ha_head->hh_head [L742] (&(user)->hh)->hh_next = _ha_head->hh_head [L742] (&(user)->hh)->hh_prev = ((void *)0) [L742] EXPR _ha_head->hh_head [L742] COND FALSE !(_ha_head->hh_head != ((void *)0)) [L742] _ha_head->hh_head = (&(user)->hh) [L742] EXPR _ha_head->count [L742] EXPR _ha_head->expand_mult [L742] (_ha_head->count >= ((_ha_head->expand_mult + 1U) * 10U)) && !(&(user)->hh)->tbl->noexpand [L742] EXPR (&(user)->hh)->tbl [L742] EXPR (&(user)->hh)->tbl->noexpand [L742] (_ha_head->count >= ((_ha_head->expand_mult + 1U) * 10U)) && !(&(user)->hh)->tbl->noexpand [L742] COND FALSE !((_ha_head->count >= ((_ha_head->expand_mult + 1U) * 10U)) && !(&(user)->hh)->tbl->noexpand) [L735] EXPR \read(i) [L735] i++ [L735] EXPR \read(i) [L735] COND FALSE !(i<10) [L744] i=0 [L744] EXPR \read(i) [L744] COND TRUE i<10 [L745] unsigned _hf_hashv; [L745] unsigned _hj_i,_hj_j,_hj_k; [L745] unsigned const char *_hj_key=(unsigned const char*)(&i); [L745] _hf_hashv = 0xfeedbeefu [L745] EXPR _hj_j = 0x9e3779b9u [L745] _hj_i = _hj_j = 0x9e3779b9u [L745] _hj_k = (unsigned)(sizeof(int)) [L745] COND FALSE !(_hj_k >= 12U) [L745] _hf_hashv += (unsigned)(sizeof(int)) [L745] case 11: [L745] case 10: [L745] case 9: [L745] case 8: [L745] case 7: [L745] case 6: [L745] case 5: [L745] case 4: [L745] EXPR _hj_key[3] [L745] _hj_i += ( (unsigned)_hj_key[3] << 24 ) [L745] case 3: [L745] EXPR _hj_key[2] [L745] _hj_i += ( (unsigned)_hj_key[2] << 16 ) [L745] case 2: [L745] EXPR _hj_key[1] [L745] _hj_i += ( (unsigned)_hj_key[1] << 8 ) [L745] case 1: [L745] EXPR _hj_key[0] [L745] _hj_i += _hj_key[0] [L745] _hj_i -= _hj_j [L745] _hj_i -= _hf_hashv [L745] _hj_i ^= ( _hf_hashv >> 13 ) [L745] _hj_j -= _hf_hashv [L745] _hj_j -= _hj_i [L745] _hj_j ^= ( _hj_i << 8 ) [L745] _hf_hashv -= _hj_i [L745] _hf_hashv -= _hj_j [L745] _hf_hashv ^= ( _hj_j >> 13 ) [L745] _hj_i -= _hj_j [L745] _hj_i -= _hf_hashv [L745] _hj_i ^= ( _hf_hashv >> 12 ) [L745] _hj_j -= _hf_hashv [L745] _hj_j -= _hj_i [L745] _hj_j ^= ( _hj_i << 16 ) [L745] _hf_hashv -= _hj_i [L745] _hf_hashv -= _hj_j [L745] _hf_hashv ^= ( _hj_j >> 5 ) [L745] _hj_i -= _hj_j [L745] _hj_i -= _hf_hashv [L745] _hj_i ^= ( _hf_hashv >> 3 ) [L745] _hj_j -= _hf_hashv [L745] _hj_j -= _hj_i [L745] _hj_j ^= ( _hj_i << 10 ) [L745] _hf_hashv -= _hj_i [L745] _hf_hashv -= _hj_j [L745] _hf_hashv ^= ( _hj_j >> 15 ) [L745] (tmp) = ((void *)0) [L745] COND TRUE \read(*users) [L745] unsigned _hf_bkt; [L745] EXPR (users)->hh.tbl [L745] EXPR (users)->hh.tbl->num_buckets [L745] _hf_bkt = ((_hf_hashv) & (((users)->hh.tbl->num_buckets) - 1U)) [L745] EXPR (users)->hh.tbl [L745] EXPR (users)->hh.tbl->buckets [L745] EXPR ((users)->hh.tbl->buckets[ _hf_bkt ]).hh_head [L745] COND FALSE !(((users)->hh.tbl->buckets[ _hf_bkt ]).hh_head != ((void *)0)) [L745] (tmp) = ((void *)0) [L745] COND FALSE !((tmp) != ((void *)0)) [L746] COND FALSE !(tmp != ((void *)0)) [L750] reach_error() - UnprovableResult [Line: 703]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 202 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 21.8s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2263 SDtfs, 1332 SDslu, 2278 SDs, 0 SdLazy, 569 SolverSat, 120 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 577 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=410occurred in iteration=9, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 313 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 14.5s InterpolantComputationTime, 703 NumberOfCodeBlocks, 703 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 584 ConstructedInterpolants, 0 QuantifiedInterpolants, 1117 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2355 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 14/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-09 10:38:29,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:38:32,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:38:32,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:38:32,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:38:32,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:38:32,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:38:32,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:38:32,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:38:32,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:38:32,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:38:32,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:38:32,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:38:32,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:38:32,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:38:32,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:38:32,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:38:32,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:38:32,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:38:32,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:38:32,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:38:32,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:38:32,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:38:32,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:38:32,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:38:32,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:38:32,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:38:32,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:38:32,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:38:32,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:38:32,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:38:32,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:38:32,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:38:32,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:38:32,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:38:32,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:38:32,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:38:32,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:38:32,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:38:32,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:38:32,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:38:32,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:38:32,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-09 10:38:32,727 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:38:32,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:38:32,728 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:38:32,728 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:38:32,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:38:32,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:38:32,731 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:38:32,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:38:32,732 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:38:32,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:38:32,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:38:32,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:38:32,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:38:32,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:38:32,734 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-09 10:38:32,735 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-09 10:38:32,735 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:38:32,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:38:32,736 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:38:32,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:38:32,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:38:32,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:38:32,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:38:32,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:38:32,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:38:32,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:38:32,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:38:32,738 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-09 10:38:32,739 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-09 10:38:32,739 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 10:38:32,739 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 10:38:32,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:38:32,740 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:38:32,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-09 10:38:32,741 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2021-11-09 10:38:33,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:38:33,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:38:33,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:38:33,225 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:38:33,226 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:38:33,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2021-11-09 10:38:33,311 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/data/0915a1569/567484c0bd6b4eecbd4aa1eefa2dcef7/FLAG584f84e0b [2021-11-09 10:38:34,193 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:38:34,195 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2021-11-09 10:38:34,226 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/data/0915a1569/567484c0bd6b4eecbd4aa1eefa2dcef7/FLAG584f84e0b [2021-11-09 10:38:34,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/data/0915a1569/567484c0bd6b4eecbd4aa1eefa2dcef7 [2021-11-09 10:38:34,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:38:34,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:38:34,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:38:34,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:38:34,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:38:34,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:38:34" (1/1) ... [2021-11-09 10:38:34,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e5efa00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:34, skipping insertion in model container [2021-11-09 10:38:34,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:38:34" (1/1) ... [2021-11-09 10:38:34,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:38:34,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:38:35,002 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[33021,33034] [2021-11-09 10:38:35,163 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[44590,44603] [2021-11-09 10:38:35,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:38:35,216 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:38:35,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[33021,33034] [2021-11-09 10:38:35,435 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[44590,44603] [2021-11-09 10:38:35,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:38:35,496 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:38:35,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:35 WrapperNode [2021-11-09 10:38:35,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:38:35,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:38:35,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:38:35,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:38:35,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:35" (1/1) ... [2021-11-09 10:38:35,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:35" (1/1) ... [2021-11-09 10:38:35,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:38:35,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:38:35,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:38:35,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:38:35,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:35" (1/1) ... [2021-11-09 10:38:35,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:35" (1/1) ... [2021-11-09 10:38:35,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:35" (1/1) ... [2021-11-09 10:38:35,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:35" (1/1) ... [2021-11-09 10:38:35,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:35" (1/1) ... [2021-11-09 10:38:35,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:35" (1/1) ... [2021-11-09 10:38:35,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:35" (1/1) ... [2021-11-09 10:38:35,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:38:35,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:38:35,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:38:35,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:38:35,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:35" (1/1) ... [2021-11-09 10:38:35,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:38:35,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:38:35,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:38:35,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:38:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-09 10:38:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-09 10:38:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 10:38:36,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 10:38:36,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:38:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-09 10:38:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 10:38:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 10:38:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-09 10:38:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-09 10:38:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:38:36,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:38:41,858 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:38:41,858 INFO L299 CfgBuilder]: Removed 85 assume(true) statements. [2021-11-09 10:38:41,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:38:41 BoogieIcfgContainer [2021-11-09 10:38:41,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:38:41,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:38:41,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:38:41,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:38:41,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:38:34" (1/3) ... [2021-11-09 10:38:41,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e50cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:38:41, skipping insertion in model container [2021-11-09 10:38:41,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:38:35" (2/3) ... [2021-11-09 10:38:41,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e50cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:38:41, skipping insertion in model container [2021-11-09 10:38:41,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:38:41" (3/3) ... [2021-11-09 10:38:41,872 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-1.i [2021-11-09 10:38:41,878 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:38:41,879 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-09 10:38:41,939 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:38:41,946 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 10:38:41,946 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-09 10:38:41,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 195 states have (on average 1.7230769230769232) internal successors, (336), 201 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:41,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-09 10:38:41,990 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:41,991 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:41,992 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:41,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:41,998 INFO L85 PathProgramCache]: Analyzing trace with hash 239232295, now seen corresponding path program 1 times [2021-11-09 10:38:42,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:38:42,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713575713] [2021-11-09 10:38:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:42,011 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:38:42,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:38:42,015 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:38:42,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-09 10:38:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:42,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-09 10:38:42,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:42,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:42,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:38:42,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:42,349 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:38:42,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713575713] [2021-11-09 10:38:42,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713575713] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:42,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:42,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-09 10:38:42,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556906347] [2021-11-09 10:38:42,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 10:38:42,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:38:42,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 10:38:42,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 10:38:42,387 INFO L87 Difference]: Start difference. First operand has 202 states, 195 states have (on average 1.7230769230769232) internal successors, (336), 201 states have internal predecessors, (336), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:42,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:42,457 INFO L93 Difference]: Finished difference Result 402 states and 670 transitions. [2021-11-09 10:38:42,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 10:38:42,459 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) Word has length 9 [2021-11-09 10:38:42,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:42,483 INFO L225 Difference]: With dead ends: 402 [2021-11-09 10:38:42,483 INFO L226 Difference]: Without dead ends: 198 [2021-11-09 10:38:42,489 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 10:38:42,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-09 10:38:42,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-11-09 10:38:42,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 192 states have (on average 1.3489583333333333) internal successors, (259), 197 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:42,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 259 transitions. [2021-11-09 10:38:42,585 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 259 transitions. Word has length 9 [2021-11-09 10:38:42,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:42,586 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 259 transitions. [2021-11-09 10:38:42,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:42,586 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 259 transitions. [2021-11-09 10:38:42,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-09 10:38:42,587 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:42,588 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:42,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:42,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:38:42,799 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:42,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:42,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1042319138, now seen corresponding path program 1 times [2021-11-09 10:38:42,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:38:42,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295243944] [2021-11-09 10:38:42,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:42,802 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:38:42,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:38:42,806 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:38:42,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-09 10:38:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:42,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:42,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:43,049 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 11 treesize of output 7 [2021-11-09 10:38:43,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-09 10:38:43,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:43,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:38:43,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:43,290 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:38:43,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295243944] [2021-11-09 10:38:43,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295243944] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:43,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:43,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-09 10:38:43,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353999551] [2021-11-09 10:38:43,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 10:38:43,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:38:43,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 10:38:43,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:38:43,299 INFO L87 Difference]: Start difference. First operand 198 states and 259 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:48,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:48,328 INFO L93 Difference]: Finished difference Result 552 states and 722 transitions. [2021-11-09 10:38:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:38:48,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) Word has length 12 [2021-11-09 10:38:48,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:48,333 INFO L225 Difference]: With dead ends: 552 [2021-11-09 10:38:48,333 INFO L226 Difference]: Without dead ends: 444 [2021-11-09 10:38:48,335 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-09 10:38:48,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2021-11-09 10:38:48,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 200. [2021-11-09 10:38:48,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 194 states have (on average 1.3453608247422681) internal successors, (261), 199 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 261 transitions. [2021-11-09 10:38:48,362 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 261 transitions. Word has length 12 [2021-11-09 10:38:48,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:48,363 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 261 transitions. [2021-11-09 10:38:48,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:48,363 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 261 transitions. [2021-11-09 10:38:48,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-09 10:38:48,367 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:48,367 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:48,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:48,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:38:48,581 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:48,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:48,582 INFO L85 PathProgramCache]: Analyzing trace with hash 168111628, now seen corresponding path program 1 times [2021-11-09 10:38:48,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:38:48,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991439356] [2021-11-09 10:38:48,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:48,584 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:38:48,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:38:48,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:38:48,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-09 10:38:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:48,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:48,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:49,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:38:49,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:49,391 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:38:49,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991439356] [2021-11-09 10:38:49,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991439356] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:49,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:49,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-09 10:38:49,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429162502] [2021-11-09 10:38:49,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:38:49,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:38:49,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:38:49,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:38:49,394 INFO L87 Difference]: Start difference. First operand 200 states and 261 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:49,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:49,580 INFO L93 Difference]: Finished difference Result 405 states and 530 transitions. [2021-11-09 10:38:49,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:49,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) Word has length 64 [2021-11-09 10:38:49,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:49,583 INFO L225 Difference]: With dead ends: 405 [2021-11-09 10:38:49,583 INFO L226 Difference]: Without dead ends: 209 [2021-11-09 10:38:49,585 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:38:49,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-09 10:38:49,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 203. [2021-11-09 10:38:49,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 197 states have (on average 1.299492385786802) internal successors, (256), 202 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:49,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 256 transitions. [2021-11-09 10:38:49,615 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 256 transitions. Word has length 64 [2021-11-09 10:38:49,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:49,616 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 256 transitions. [2021-11-09 10:38:49,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:49,616 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 256 transitions. [2021-11-09 10:38:49,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-09 10:38:49,620 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:49,620 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:49,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:49,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:38:49,835 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:49,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:49,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1012352744, now seen corresponding path program 1 times [2021-11-09 10:38:49,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:38:49,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88120787] [2021-11-09 10:38:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:49,838 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:38:49,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:38:49,839 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:38:49,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-09 10:38:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:50,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:50,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:50,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:38:51,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:51,343 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:38:51,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88120787] [2021-11-09 10:38:51,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88120787] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:51,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:51,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-09 10:38:51,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382667969] [2021-11-09 10:38:51,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:51,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:38:51,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:51,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:51,346 INFO L87 Difference]: Start difference. First operand 203 states and 256 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:52,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:52,822 INFO L93 Difference]: Finished difference Result 533 states and 671 transitions. [2021-11-09 10:38:52,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:52,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) Word has length 64 [2021-11-09 10:38:52,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:52,826 INFO L225 Difference]: With dead ends: 533 [2021-11-09 10:38:52,826 INFO L226 Difference]: Without dead ends: 334 [2021-11-09 10:38:52,827 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:52,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-11-09 10:38:52,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 306. [2021-11-09 10:38:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 300 states have (on average 1.2833333333333334) internal successors, (385), 305 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:52,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 385 transitions. [2021-11-09 10:38:52,845 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 385 transitions. Word has length 64 [2021-11-09 10:38:52,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:52,846 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 385 transitions. [2021-11-09 10:38:52,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:52,847 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 385 transitions. [2021-11-09 10:38:52,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-09 10:38:52,851 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:52,851 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:52,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-09 10:38:53,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:38:53,067 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:53,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:53,068 INFO L85 PathProgramCache]: Analyzing trace with hash -147792665, now seen corresponding path program 1 times [2021-11-09 10:38:53,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:38:53,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291847892] [2021-11-09 10:38:53,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:53,069 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:38:53,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:38:53,071 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:38:53,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-09 10:38:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:53,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:53,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:53,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:38:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:54,040 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:38:54,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291847892] [2021-11-09 10:38:54,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291847892] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:54,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:54,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-09 10:38:54,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152391163] [2021-11-09 10:38:54,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:54,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:38:54,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:54,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:54,044 INFO L87 Difference]: Start difference. First operand 306 states and 385 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:54,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:54,161 INFO L93 Difference]: Finished difference Result 570 states and 727 transitions. [2021-11-09 10:38:54,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:54,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) Word has length 71 [2021-11-09 10:38:54,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:54,166 INFO L225 Difference]: With dead ends: 570 [2021-11-09 10:38:54,167 INFO L226 Difference]: Without dead ends: 309 [2021-11-09 10:38:54,168 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:54,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-09 10:38:54,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2021-11-09 10:38:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 303 states have (on average 1.2805280528052805) internal successors, (388), 308 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 388 transitions. [2021-11-09 10:38:54,184 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 388 transitions. Word has length 71 [2021-11-09 10:38:54,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:54,188 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 388 transitions. [2021-11-09 10:38:54,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:54,189 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 388 transitions. [2021-11-09 10:38:54,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-09 10:38:54,197 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:54,198 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:54,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:54,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:38:54,413 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:54,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:54,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1065048653, now seen corresponding path program 1 times [2021-11-09 10:38:54,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:38:54,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919687737] [2021-11-09 10:38:54,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:54,415 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:38:54,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:38:54,417 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:38:54,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-09 10:38:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:54,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 10:38:54,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:55,148 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 10:38:55,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:38:55,419 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 10:38:55,419 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:38:55,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919687737] [2021-11-09 10:38:55,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919687737] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-09 10:38:55,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:38:55,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-09 10:38:55,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566022103] [2021-11-09 10:38:55,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 10:38:55,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:38:55,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 10:38:55,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-09 10:38:55,422 INFO L87 Difference]: Start difference. First operand 309 states and 388 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:55,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:55,880 INFO L93 Difference]: Finished difference Result 579 states and 739 transitions. [2021-11-09 10:38:55,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 10:38:55,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) Word has length 74 [2021-11-09 10:38:55,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:55,884 INFO L225 Difference]: With dead ends: 579 [2021-11-09 10:38:55,884 INFO L226 Difference]: Without dead ends: 315 [2021-11-09 10:38:55,886 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-09 10:38:55,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-11-09 10:38:55,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2021-11-09 10:38:55,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 309 states have (on average 1.2750809061488673) internal successors, (394), 314 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:55,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 394 transitions. [2021-11-09 10:38:55,904 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 394 transitions. Word has length 74 [2021-11-09 10:38:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:55,906 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 394 transitions. [2021-11-09 10:38:55,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:55,906 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 394 transitions. [2021-11-09 10:38:55,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-09 10:38:55,909 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:55,909 INFO L513 BasicCegarLoop]: trace histogram [6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:38:55,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-09 10:38:56,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:38:56,131 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:38:56,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:56,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1820271245, now seen corresponding path program 2 times [2021-11-09 10:38:56,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:38:56,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976129938] [2021-11-09 10:38:56,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 10:38:56,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:38:56,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:38:56,134 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:38:56,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-09 10:38:56,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-09 10:38:56,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 10:38:56,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:38:56,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:38:56,697 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 11 treesize of output 7 [2021-11-09 10:38:56,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-09 10:38:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-09 10:38:56,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:38:56,988 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-09 10:38:56,988 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:38:56,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976129938] [2021-11-09 10:38:56,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976129938] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:56,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:56,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-09 10:38:56,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628010699] [2021-11-09 10:38:56,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 10:38:56,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:38:56,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 10:38:56,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:38:56,991 INFO L87 Difference]: Start difference. First operand 315 states and 394 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:03,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:39:03,197 INFO L93 Difference]: Finished difference Result 490 states and 625 transitions. [2021-11-09 10:39:03,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 10:39:03,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) Word has length 80 [2021-11-09 10:39:03,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:39:03,202 INFO L225 Difference]: With dead ends: 490 [2021-11-09 10:39:03,202 INFO L226 Difference]: Without dead ends: 465 [2021-11-09 10:39:03,203 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-09 10:39:03,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2021-11-09 10:39:03,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 386. [2021-11-09 10:39:03,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 380 states have (on average 1.2894736842105263) internal successors, (490), 385 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:03,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 490 transitions. [2021-11-09 10:39:03,220 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 490 transitions. Word has length 80 [2021-11-09 10:39:03,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:39:03,221 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 490 transitions. [2021-11-09 10:39:03,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:03,221 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 490 transitions. [2021-11-09 10:39:03,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-09 10:39:03,223 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:39:03,223 INFO L513 BasicCegarLoop]: trace histogram [6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:39:03,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-09 10:39:03,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:39:03,437 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:39:03,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:39:03,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1224331210, now seen corresponding path program 1 times [2021-11-09 10:39:03,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:39:03,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127292705] [2021-11-09 10:39:03,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:39:03,439 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:39:03,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:39:03,440 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:39:03,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-09 10:39:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:39:03,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 10:39:03,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:39:04,513 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 10:39:04,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:39:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 10:39:05,283 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:39:05,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127292705] [2021-11-09 10:39:05,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127292705] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-09 10:39:05,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:39:05,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-11-09 10:39:05,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190425658] [2021-11-09 10:39:05,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-09 10:39:05,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:39:05,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-09 10:39:05,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-11-09 10:39:05,287 INFO L87 Difference]: Start difference. First operand 386 states and 490 transitions. Second operand has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:07,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:39:07,821 INFO L93 Difference]: Finished difference Result 739 states and 955 transitions. [2021-11-09 10:39:07,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-09 10:39:07,822 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 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) Word has length 112 [2021-11-09 10:39:07,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:39:07,826 INFO L225 Difference]: With dead ends: 739 [2021-11-09 10:39:07,826 INFO L226 Difference]: Without dead ends: 398 [2021-11-09 10:39:07,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=174, Invalid=288, Unknown=0, NotChecked=0, Total=462 [2021-11-09 10:39:07,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-11-09 10:39:07,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-11-09 10:39:07,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 392 states have (on average 1.280612244897959) internal successors, (502), 397 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:07,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 502 transitions. [2021-11-09 10:39:07,858 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 502 transitions. Word has length 112 [2021-11-09 10:39:07,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:39:07,859 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 502 transitions. [2021-11-09 10:39:07,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:07,859 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 502 transitions. [2021-11-09 10:39:07,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-09 10:39:07,861 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:39:07,862 INFO L513 BasicCegarLoop]: trace histogram [14, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:39:07,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-09 10:39:08,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:39:08,083 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:39:08,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:39:08,083 INFO L85 PathProgramCache]: Analyzing trace with hash -2016870474, now seen corresponding path program 2 times [2021-11-09 10:39:08,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:39:08,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597402235] [2021-11-09 10:39:08,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 10:39:08,085 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:39:08,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:39:08,088 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:39:08,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-09 10:39:08,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-09 10:39:08,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 10:39:08,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:39:08,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:39:09,032 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-09 10:39:09,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:39:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-09 10:39:09,377 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:39:09,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597402235] [2021-11-09 10:39:09,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597402235] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:39:09,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:39:09,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-09 10:39:09,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355448406] [2021-11-09 10:39:09,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:39:09,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:39:09,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:39:09,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:39:09,380 INFO L87 Difference]: Start difference. First operand 398 states and 502 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:09,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:39:09,548 INFO L93 Difference]: Finished difference Result 645 states and 838 transitions. [2021-11-09 10:39:09,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:39:09,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) Word has length 124 [2021-11-09 10:39:09,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:39:09,552 INFO L225 Difference]: With dead ends: 645 [2021-11-09 10:39:09,552 INFO L226 Difference]: Without dead ends: 410 [2021-11-09 10:39:09,553 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:39:09,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-11-09 10:39:09,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 407. [2021-11-09 10:39:09,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 401 states have (on average 1.2144638403990025) internal successors, (487), 406 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:09,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 487 transitions. [2021-11-09 10:39:09,576 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 487 transitions. Word has length 124 [2021-11-09 10:39:09,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:39:09,577 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 487 transitions. [2021-11-09 10:39:09,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:09,577 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 487 transitions. [2021-11-09 10:39:09,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-09 10:39:09,579 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:39:09,580 INFO L513 BasicCegarLoop]: trace histogram [14, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:39:09,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-09 10:39:09,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:39:09,795 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:39:09,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:39:09,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1333208362, now seen corresponding path program 1 times [2021-11-09 10:39:09,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:39:09,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412684600] [2021-11-09 10:39:09,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:39:09,796 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:39:09,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:39:09,797 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:39:09,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-09 10:39:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:39:10,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-09 10:39:10,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:39:11,415 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-09 10:39:11,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:39:13,242 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-09 10:39:13,242 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:39:13,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412684600] [2021-11-09 10:39:13,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412684600] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-09 10:39:13,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:39:13,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-11-09 10:39:13,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127855320] [2021-11-09 10:39:13,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-09 10:39:13,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:39:13,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-09 10:39:13,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=706, Unknown=0, NotChecked=0, Total=992 [2021-11-09 10:39:13,246 INFO L87 Difference]: Start difference. First operand 407 states and 487 transitions. Second operand has 32 states, 32 states have (on average 4.1875) internal successors, (134), 32 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:27,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:39:27,573 INFO L93 Difference]: Finished difference Result 793 states and 973 transitions. [2021-11-09 10:39:27,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-09 10:39:27,574 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.1875) internal successors, (134), 32 states have internal predecessors, (134), 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) Word has length 124 [2021-11-09 10:39:27,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:39:27,577 INFO L225 Difference]: With dead ends: 793 [2021-11-09 10:39:27,578 INFO L226 Difference]: Without dead ends: 431 [2021-11-09 10:39:27,579 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=734, Invalid=1336, Unknown=0, NotChecked=0, Total=2070 [2021-11-09 10:39:27,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-11-09 10:39:27,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2021-11-09 10:39:27,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 425 states have (on average 1.2023529411764706) internal successors, (511), 430 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:27,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 511 transitions. [2021-11-09 10:39:27,600 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 511 transitions. Word has length 124 [2021-11-09 10:39:27,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:39:27,601 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 511 transitions. [2021-11-09 10:39:27,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.1875) internal successors, (134), 32 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:27,601 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 511 transitions. [2021-11-09 10:39:27,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-09 10:39:27,603 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:39:27,604 INFO L513 BasicCegarLoop]: trace histogram [30, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:39:27,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-09 10:39:27,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:39:27,825 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:39:27,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:39:27,826 INFO L85 PathProgramCache]: Analyzing trace with hash -2039593942, now seen corresponding path program 2 times [2021-11-09 10:39:27,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:39:27,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397960197] [2021-11-09 10:39:27,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 10:39:27,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:39:27,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:39:27,827 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:39:27,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-09 10:39:28,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-09 10:39:28,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 10:39:28,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 10:39:28,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:39:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2021-11-09 10:39:28,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:39:29,077 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2021-11-09 10:39:29,078 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:39:29,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397960197] [2021-11-09 10:39:29,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397960197] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:39:29,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:39:29,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 5] imperfect sequences [] total 5 [2021-11-09 10:39:29,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566526982] [2021-11-09 10:39:29,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 10:39:29,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:39:29,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 10:39:29,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:39:29,081 INFO L87 Difference]: Start difference. First operand 431 states and 511 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:29,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:39:29,227 INFO L93 Difference]: Finished difference Result 653 states and 785 transitions. [2021-11-09 10:39:29,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:39:29,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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) Word has length 148 [2021-11-09 10:39:29,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:39:29,232 INFO L225 Difference]: With dead ends: 653 [2021-11-09 10:39:29,233 INFO L226 Difference]: Without dead ends: 434 [2021-11-09 10:39:29,233 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:39:29,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-09 10:39:29,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 431. [2021-11-09 10:39:29,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 425 states have (on average 1.1811764705882353) internal successors, (502), 430 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:29,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 502 transitions. [2021-11-09 10:39:29,260 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 502 transitions. Word has length 148 [2021-11-09 10:39:29,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:39:29,261 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 502 transitions. [2021-11-09 10:39:29,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:39:29,261 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 502 transitions. [2021-11-09 10:39:29,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-09 10:39:29,264 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:39:29,264 INFO L513 BasicCegarLoop]: trace histogram [30, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:39:29,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-09 10:39:29,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:39:29,479 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:39:29,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:39:29,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1997207916, now seen corresponding path program 1 times [2021-11-09 10:39:29,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:39:29,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536364919] [2021-11-09 10:39:29,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:39:29,480 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:39:29,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:39:29,481 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:39:29,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-09 10:39:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:39:30,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-09 10:39:30,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:39:32,538 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 2 proven. 465 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-09 10:39:32,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:39:37,412 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 2 proven. 465 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-09 10:39:37,413 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:39:37,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536364919] [2021-11-09 10:39:37,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536364919] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-09 10:39:37,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:39:37,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2021-11-09 10:39:37,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869326048] [2021-11-09 10:39:37,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-11-09 10:39:37,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:39:37,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-11-09 10:39:37,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=933, Invalid=3099, Unknown=0, NotChecked=0, Total=4032 [2021-11-09 10:39:37,419 INFO L87 Difference]: Start difference. First operand 431 states and 502 transitions. Second operand has 64 states, 64 states have (on average 2.59375) internal successors, (166), 64 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:22,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:41:22,182 INFO L93 Difference]: Finished difference Result 847 states and 1015 transitions. [2021-11-09 10:41:22,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-09 10:41:22,183 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 2.59375) internal successors, (166), 64 states have internal predecessors, (166), 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) Word has length 148 [2021-11-09 10:41:22,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:41:22,187 INFO L225 Difference]: With dead ends: 847 [2021-11-09 10:41:22,187 INFO L226 Difference]: Without dead ends: 461 [2021-11-09 10:41:22,192 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 39.6s TimeCoverageRelationStatistics Valid=2700, Invalid=6042, Unknown=0, NotChecked=0, Total=8742 [2021-11-09 10:41:22,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-11-09 10:41:22,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2021-11-09 10:41:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 455 states have (on average 1.1692307692307693) internal successors, (532), 460 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:22,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 532 transitions. [2021-11-09 10:41:22,231 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 532 transitions. Word has length 148 [2021-11-09 10:41:22,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:41:22,232 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 532 transitions. [2021-11-09 10:41:22,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 2.59375) internal successors, (166), 64 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:41:22,233 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 532 transitions. [2021-11-09 10:41:22,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-09 10:41:22,236 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:41:22,236 INFO L513 BasicCegarLoop]: trace histogram [44, 31, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:41:22,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-09 10:41:22,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:41:22,451 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:41:22,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:41:22,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1100843980, now seen corresponding path program 2 times [2021-11-09 10:41:22,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:41:22,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901375693] [2021-11-09 10:41:22,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 10:41:22,453 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:41:22,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:41:22,454 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:41:22,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-09 10:41:24,083 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 10:41:24,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 10:41:24,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-09 10:41:24,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:41:26,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 2 proven. 496 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-09 10:41:26,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:41:31,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 2 proven. 496 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-09 10:41:31,989 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:41:31,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901375693] [2021-11-09 10:41:31,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [901375693] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-09 10:41:31,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:41:31,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2021-11-09 10:41:31,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346403817] [2021-11-09 10:41:31,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-09 10:41:31,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:41:31,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-09 10:41:31,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1153, Invalid=3137, Unknown=0, NotChecked=0, Total=4290 [2021-11-09 10:41:31,994 INFO L87 Difference]: Start difference. First operand 461 states and 532 transitions. Second operand has 66 states, 66 states have (on average 2.5454545454545454) internal successors, (168), 66 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:43:23,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:43:23,567 INFO L93 Difference]: Finished difference Result 910 states and 1081 transitions. [2021-11-09 10:43:23,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-09 10:43:23,569 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.5454545454545454) internal successors, (168), 66 states have internal predecessors, (168), 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) Word has length 178 [2021-11-09 10:43:23,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:43:23,572 INFO L225 Difference]: With dead ends: 910 [2021-11-09 10:43:23,572 INFO L226 Difference]: Without dead ends: 494 [2021-11-09 10:43:23,576 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 44.7s TimeCoverageRelationStatistics Valid=3199, Invalid=6113, Unknown=0, NotChecked=0, Total=9312 [2021-11-09 10:43:23,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2021-11-09 10:43:23,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2021-11-09 10:43:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 488 states have (on average 1.1577868852459017) internal successors, (565), 493 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:43:23,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 565 transitions. [2021-11-09 10:43:23,626 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 565 transitions. Word has length 178 [2021-11-09 10:43:23,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:43:23,626 INFO L470 AbstractCegarLoop]: Abstraction has 494 states and 565 transitions. [2021-11-09 10:43:23,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.5454545454545454) internal successors, (168), 66 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:43:23,627 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 565 transitions. [2021-11-09 10:43:23,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-09 10:43:23,630 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:43:23,630 INFO L513 BasicCegarLoop]: trace histogram [64, 44, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:43:23,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-09 10:43:23,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:43:23,855 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:43:23,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:43:23,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1145284768, now seen corresponding path program 3 times [2021-11-09 10:43:23,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:43:23,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647489871] [2021-11-09 10:43:23,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 10:43:23,857 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:43:23,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:43:23,860 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:43:23,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-09 10:43:24,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-09 10:43:24,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 10:43:24,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 10:43:24,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:43:25,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3070 trivial. 0 not checked. [2021-11-09 10:43:25,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:43:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3070 trivial. 0 not checked. [2021-11-09 10:43:26,550 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:43:26,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647489871] [2021-11-09 10:43:26,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647489871] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 10:43:26,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:43:26,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-09 10:43:26,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708456407] [2021-11-09 10:43:26,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:43:26,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:43:26,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:43:26,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:43:26,552 INFO L87 Difference]: Start difference. First operand 494 states and 565 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:43:29,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:43:29,726 INFO L93 Difference]: Finished difference Result 1070 states and 1232 transitions. [2021-11-09 10:43:29,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:43:29,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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) Word has length 211 [2021-11-09 10:43:29,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:43:29,732 INFO L225 Difference]: With dead ends: 1070 [2021-11-09 10:43:29,732 INFO L226 Difference]: Without dead ends: 621 [2021-11-09 10:43:29,733 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 10:43:29,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2021-11-09 10:43:29,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 569. [2021-11-09 10:43:29,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 563 states have (on average 1.1580817051509769) internal successors, (652), 568 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:43:29,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 652 transitions. [2021-11-09 10:43:29,781 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 652 transitions. Word has length 211 [2021-11-09 10:43:29,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:43:29,782 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 652 transitions. [2021-11-09 10:43:29,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:43:29,782 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 652 transitions. [2021-11-09 10:43:29,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-09 10:43:29,784 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:43:29,784 INFO L513 BasicCegarLoop]: trace histogram [64, 44, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:43:29,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-09 10:43:30,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 10:43:30,005 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 10:43:30,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:43:30,005 INFO L85 PathProgramCache]: Analyzing trace with hash 670931834, now seen corresponding path program 1 times [2021-11-09 10:43:30,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 10:43:30,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148709772] [2021-11-09 10:43:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:43:30,007 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 10:43:30,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 10:43:30,009 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 10:43:30,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c89240f-11e9-494b-9a08-30e5b7d67ec5/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-09 10:43:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:43:32,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-09 10:43:32,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:43:38,461 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 2 proven. 2080 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-09 10:43:38,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 10:43:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 2 proven. 2080 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-09 10:43:59,660 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 10:43:59,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148709772] [2021-11-09 10:43:59,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148709772] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-09 10:43:59,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:43:59,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 132 [2021-11-09 10:43:59,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053549649] [2021-11-09 10:43:59,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 132 states [2021-11-09 10:43:59,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 10:43:59,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2021-11-09 10:43:59,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4486, Invalid=12806, Unknown=0, NotChecked=0, Total=17292 [2021-11-09 10:43:59,668 INFO L87 Difference]: Start difference. First operand 569 states and 652 transitions. Second operand has 132 states, 132 states have (on average 1.8257575757575757) internal successors, (241), 132 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:49:36,817 WARN L207 SmtUtils]: Spent 7.72 s on a formula simplification that was a NOOP. DAG size: 196 [2021-11-09 10:49:48,831 WARN L207 SmtUtils]: Spent 9.03 s on a formula simplification that was a NOOP. DAG size: 193 [2021-11-09 10:50:00,138 WARN L207 SmtUtils]: Spent 8.35 s on a formula simplification that was a NOOP. DAG size: 190 [2021-11-09 10:50:11,092 WARN L207 SmtUtils]: Spent 7.86 s on a formula simplification that was a NOOP. DAG size: 187 [2021-11-09 10:50:21,672 WARN L207 SmtUtils]: Spent 7.42 s on a formula simplification that was a NOOP. DAG size: 184 [2021-11-09 10:50:32,415 WARN L207 SmtUtils]: Spent 7.70 s on a formula simplification that was a NOOP. DAG size: 181 [2021-11-09 10:50:42,317 WARN L207 SmtUtils]: Spent 6.91 s on a formula simplification that was a NOOP. DAG size: 178 [2021-11-09 10:50:52,828 WARN L207 SmtUtils]: Spent 7.53 s on a formula simplification that was a NOOP. DAG size: 175 [2021-11-09 10:51:02,396 WARN L207 SmtUtils]: Spent 6.44 s on a formula simplification that was a NOOP. DAG size: 172 [2021-11-09 10:51:12,510 WARN L207 SmtUtils]: Spent 7.07 s on a formula simplification that was a NOOP. DAG size: 169 [2021-11-09 10:51:22,299 WARN L207 SmtUtils]: Spent 6.64 s on a formula simplification that was a NOOP. DAG size: 166 [2021-11-09 10:51:32,259 WARN L207 SmtUtils]: Spent 6.79 s on a formula simplification that was a NOOP. DAG size: 163 [2021-11-09 10:51:34,365 WARN L860 $PredicateComparison]: unable to prove that (and (bvult (bvadd (_ bv2 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv4 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv32 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv34 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv37 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv1 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv12 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv48 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv40 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv26 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv19 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv52 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv27 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv39 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv46 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv23 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv9 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv25 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv22 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv28 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv29 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv5 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv24 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv50 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv15 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv18 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv33 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv10 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv49 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv51 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv7 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv17 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv11 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv41 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv16 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv35 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv20 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv43 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv44 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv47 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv30 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv3 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv31 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv6 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv45 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv8 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv38 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236| (_ bv21 32)) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv36 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv42 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv13 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|) (bvult (bvadd (_ bv14 32) |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr236|) |c_ULTIMATE.start_#Ultimate.C_memset_#amount|)) is different from true [2021-11-09 10:51:50,381 WARN L207 SmtUtils]: Spent 5.20 s on a formula simplification that was a NOOP. DAG size: 154