./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce994d210c7a80b13e4ef9463fc5394f27eb9557 ....................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce994d210c7a80b13e4ef9463fc5394f27eb9557 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:22:05,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:22:05,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:22:05,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:22:05,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:22:05,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:22:05,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:22:05,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:22:05,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:22:05,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:22:05,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:22:05,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:22:05,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:22:05,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:22:05,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:22:05,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:22:05,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:22:05,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:22:05,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:22:05,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:22:05,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:22:05,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:22:05,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:22:05,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:22:05,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:22:05,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:22:05,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:22:05,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:22:05,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:22:05,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:22:05,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:22:05,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:22:05,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:22:05,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:22:05,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:22:05,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:22:05,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:22:05,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:22:05,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:22:05,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:22:05,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:22:05,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:22:05,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:22:05,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:22:05,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:22:05,277 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:22:05,278 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:22:05,278 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:22:05,278 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:22:05,279 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:22:05,279 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:22:05,279 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:22:05,281 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:22:05,281 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:22:05,281 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:22:05,282 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:22:05,282 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:22:05,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:22:05,284 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:22:05,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:22:05,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:22:05,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:22:05,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:22:05,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:22:05,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:22:05,286 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:22:05,286 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:22:05,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:22:05,287 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:22:05,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:22:05,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:22:05,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:22:05,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:22:05,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:22:05,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:22:05,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:22:05,289 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:22:05,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:22:05,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:22:05,290 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:22:05,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:22:05,291 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce994d210c7a80b13e4ef9463fc5394f27eb9557 [2021-10-16 02:22:05,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:22:05,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:22:05,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:22:05,674 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:22:05,675 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:22:05,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/eca-rers2012/Problem10_label23.c [2021-10-16 02:22:05,755 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/data/ed24ab534/870fd6a7271a4157974341042afd2a25/FLAG4da425c7e [2021-10-16 02:22:06,482 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:22:06,483 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/sv-benchmarks/c/eca-rers2012/Problem10_label23.c [2021-10-16 02:22:06,501 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/data/ed24ab534/870fd6a7271a4157974341042afd2a25/FLAG4da425c7e [2021-10-16 02:22:06,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/data/ed24ab534/870fd6a7271a4157974341042afd2a25 [2021-10-16 02:22:06,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:22:06,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:22:06,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:22:06,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:22:06,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:22:06,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:22:06" (1/1) ... [2021-10-16 02:22:06,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5424280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:06, skipping insertion in model container [2021-10-16 02:22:06,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:22:06" (1/1) ... [2021-10-16 02:22:06,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:22:06,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:22:07,038 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_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/sv-benchmarks/c/eca-rers2012/Problem10_label23.c[5328,5341] [2021-10-16 02:22:07,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:22:07,264 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:22:07,352 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_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/sv-benchmarks/c/eca-rers2012/Problem10_label23.c[5328,5341] [2021-10-16 02:22:07,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:22:07,495 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:22:07,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:07 WrapperNode [2021-10-16 02:22:07,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:22:07,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:22:07,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:22:07,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:22:07,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:07" (1/1) ... [2021-10-16 02:22:07,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:07" (1/1) ... [2021-10-16 02:22:07,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:22:07,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:22:07,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:22:07,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:22:07,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:07" (1/1) ... [2021-10-16 02:22:07,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:07" (1/1) ... [2021-10-16 02:22:07,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:07" (1/1) ... [2021-10-16 02:22:07,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:07" (1/1) ... [2021-10-16 02:22:07,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:07" (1/1) ... [2021-10-16 02:22:07,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:07" (1/1) ... [2021-10-16 02:22:07,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:07" (1/1) ... [2021-10-16 02:22:07,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:22:07,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:22:07,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:22:07,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:22:07,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:07" (1/1) ... [2021-10-16 02:22:07,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:22:07,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:22:07,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:22:07,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:22:07,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:22:07,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:22:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:22:07,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:22:18,573 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:22:18,573 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:22:18,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:22:18 BoogieIcfgContainer [2021-10-16 02:22:18,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:22:18,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:22:18,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:22:18,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:22:18,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:22:06" (1/3) ... [2021-10-16 02:22:18,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7376d30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:22:18, skipping insertion in model container [2021-10-16 02:22:18,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:07" (2/3) ... [2021-10-16 02:22:18,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7376d30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:22:18, skipping insertion in model container [2021-10-16 02:22:18,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:22:18" (3/3) ... [2021-10-16 02:22:18,591 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label23.c [2021-10-16 02:22:18,599 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:22:18,599 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:22:18,673 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:22:18,685 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:22:18,685 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:22:18,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:22:18,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:22:18,711 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:22:18,712 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:22:18,713 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:22:18,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:22:18,722 INFO L82 PathProgramCache]: Analyzing trace with hash 885184106, now seen corresponding path program 1 times [2021-10-16 02:22:18,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:22:18,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149960184] [2021-10-16 02:22:18,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:22:18,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:22:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:22:19,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:22:19,015 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:22:19,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149960184] [2021-10-16 02:22:19,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149960184] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:22:19,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:22:19,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:22:19,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470825734] [2021-10-16 02:22:19,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:22:19,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:22:19,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:22:19,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:22:19,053 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:22:19,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:22:19,141 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-16 02:22:19,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:22:19,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-10-16 02:22:19,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:22:19,155 INFO L225 Difference]: With dead ends: 23 [2021-10-16 02:22:19,155 INFO L226 Difference]: Without dead ends: 11 [2021-10-16 02:22:19,160 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:22:19,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-16 02:22:19,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-16 02:22:19,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:22:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-16 02:22:19,202 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-16 02:22:19,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:22:19,203 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-16 02:22:19,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:22:19,204 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-16 02:22:19,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:22:19,204 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:22:19,205 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-16 02:22:19,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:22:19,206 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:22:19,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:22:19,210 INFO L82 PathProgramCache]: Analyzing trace with hash 171800993, now seen corresponding path program 1 times [2021-10-16 02:22:19,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:22:19,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193505391] [2021-10-16 02:22:19,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:22:19,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:22:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:22:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:22:19,683 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:22:19,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193505391] [2021-10-16 02:22:19,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193505391] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:22:19,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192017893] [2021-10-16 02:22:19,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:22:19,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:22:19,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:22:19,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:22:19,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:22:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:22:19,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-16 02:22:19,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:22:36,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:22:36,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:22:54,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-16 02:22:54,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1982064357] [2021-10-16 02:22:54,720 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-16 02:22:54,720 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:22:54,731 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:22:54,737 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:22:54,738 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:22:54,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:22:54,791 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:22:54,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:22:54,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:22:54,795 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:22:54,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:22:54,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:22:54,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-16 02:22:54,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:22:54,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:22:54,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:22:54,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 02:22:54,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:22:54,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:22:54,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:22:54,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:22:54,867 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:22:54,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:22:54,908 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:22:54,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:22:54,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-16 02:22:54,914 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 02:22:54,915 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:152 [2021-10-16 02:22:54,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:22:55,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-16 02:22:55,139 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 02:22:55,145 INFO L168 Benchmark]: Toolchain (without parser) took 48473.56 ms. Allocated memory was 109.1 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 71.3 MB in the beginning and 613.0 MB in the end (delta: -541.7 MB). Peak memory consumption was 577.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:22:55,146 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 109.1 MB. Free memory was 89.2 MB in the beginning and 89.2 MB in the end (delta: 65.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:22:55,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 823.53 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 67.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:22:55,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.09 ms. Allocated memory is still 109.1 MB. Free memory was 67.6 MB in the beginning and 59.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:22:55,152 INFO L168 Benchmark]: Boogie Preprocessor took 136.32 ms. Allocated memory is still 109.1 MB. Free memory was 59.8 MB in the beginning and 54.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:22:55,154 INFO L168 Benchmark]: RCFGBuilder took 10795.85 ms. Allocated memory was 109.1 MB in the beginning and 337.6 MB in the end (delta: 228.6 MB). Free memory was 54.8 MB in the beginning and 265.8 MB in the end (delta: -211.0 MB). Peak memory consumption was 185.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:22:55,157 INFO L168 Benchmark]: TraceAbstraction took 36562.46 ms. Allocated memory was 337.6 MB in the beginning and 1.2 GB in the end (delta: 891.3 MB). Free memory was 264.8 MB in the beginning and 613.0 MB in the end (delta: -348.3 MB). Peak memory consumption was 543.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:22:55,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 109.1 MB. Free memory was 89.2 MB in the beginning and 89.2 MB in the end (delta: 65.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 823.53 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 67.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 132.09 ms. Allocated memory is still 109.1 MB. Free memory was 67.6 MB in the beginning and 59.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 136.32 ms. Allocated memory is still 109.1 MB. Free memory was 59.8 MB in the beginning and 54.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10795.85 ms. Allocated memory was 109.1 MB in the beginning and 337.6 MB in the end (delta: 228.6 MB). Free memory was 54.8 MB in the beginning and 265.8 MB in the end (delta: -211.0 MB). Peak memory consumption was 185.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 36562.46 ms. Allocated memory was 337.6 MB in the beginning and 1.2 GB in the end (delta: 891.3 MB). Free memory was 264.8 MB in the beginning and 613.0 MB in the end (delta: -348.3 MB). Peak memory consumption was 543.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:22:55,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:22:58,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:22:58,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:22:58,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:22:58,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:22:58,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:22:58,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:22:58,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:22:58,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:22:58,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:22:58,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:22:58,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:22:58,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:22:58,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:22:58,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:22:58,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:22:58,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:22:58,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:22:58,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:22:58,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:22:58,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:22:58,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:22:58,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:22:58,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:22:58,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:22:58,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:22:58,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:22:58,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:22:58,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:22:58,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:22:58,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:22:58,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:22:58,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:22:58,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:22:58,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:22:58,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:22:58,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:22:58,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:22:58,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:22:58,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:22:58,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:22:58,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:22:58,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:22:58,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:22:58,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:22:58,285 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:22:58,285 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:22:58,285 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:22:58,285 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:22:58,286 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:22:58,286 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:22:58,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:22:58,287 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:22:58,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:22:58,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:22:58,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:22:58,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:22:58,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:22:58,289 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:22:58,289 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:22:58,290 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:22:58,290 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:22:58,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:22:58,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:22:58,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:22:58,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:22:58,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:22:58,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:22:58,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:22:58,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:22:58,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:22:58,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:22:58,293 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:22:58,293 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:22:58,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:22:58,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:22:58,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:22:58,295 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_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce994d210c7a80b13e4ef9463fc5394f27eb9557 [2021-10-16 02:22:58,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:22:58,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:22:58,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:22:58,775 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:22:58,776 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:22:58,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/eca-rers2012/Problem10_label23.c [2021-10-16 02:22:58,874 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/data/9711e6a29/5cb2dfa425814ac293e9466f5b240419/FLAG4cbc108dc [2021-10-16 02:22:59,688 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:22:59,694 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/sv-benchmarks/c/eca-rers2012/Problem10_label23.c [2021-10-16 02:22:59,709 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/data/9711e6a29/5cb2dfa425814ac293e9466f5b240419/FLAG4cbc108dc [2021-10-16 02:22:59,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/data/9711e6a29/5cb2dfa425814ac293e9466f5b240419 [2021-10-16 02:22:59,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:22:59,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:22:59,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:22:59,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:22:59,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:22:59,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:22:59" (1/1) ... [2021-10-16 02:22:59,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19f31b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:22:59, skipping insertion in model container [2021-10-16 02:22:59,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:22:59" (1/1) ... [2021-10-16 02:22:59,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:23:00,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:23:00,333 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_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/sv-benchmarks/c/eca-rers2012/Problem10_label23.c[5328,5341] [2021-10-16 02:23:00,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:23:00,576 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:23:00,614 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_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/sv-benchmarks/c/eca-rers2012/Problem10_label23.c[5328,5341] [2021-10-16 02:23:00,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:23:00,787 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:23:00,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:00 WrapperNode [2021-10-16 02:23:00,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:23:00,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:23:00,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:23:00,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:23:00,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:00" (1/1) ... [2021-10-16 02:23:00,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:00" (1/1) ... [2021-10-16 02:23:00,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:23:00,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:23:00,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:23:00,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:23:00,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:00" (1/1) ... [2021-10-16 02:23:00,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:00" (1/1) ... [2021-10-16 02:23:00,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:00" (1/1) ... [2021-10-16 02:23:00,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:00" (1/1) ... [2021-10-16 02:23:00,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:00" (1/1) ... [2021-10-16 02:23:00,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:00" (1/1) ... [2021-10-16 02:23:00,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:00" (1/1) ... [2021-10-16 02:23:00,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:23:00,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:23:00,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:23:00,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:23:00,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:00" (1/1) ... [2021-10-16 02:23:00,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:23:01,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:23:01,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:23:01,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:23:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:23:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:23:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:23:01,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:23:04,837 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:23:04,837 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:23:04,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:23:04 BoogieIcfgContainer [2021-10-16 02:23:04,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:23:04,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:23:04,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:23:04,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:23:04,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:22:59" (1/3) ... [2021-10-16 02:23:04,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35288f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:23:04, skipping insertion in model container [2021-10-16 02:23:04,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:00" (2/3) ... [2021-10-16 02:23:04,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35288f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:23:04, skipping insertion in model container [2021-10-16 02:23:04,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:23:04" (3/3) ... [2021-10-16 02:23:04,855 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label23.c [2021-10-16 02:23:04,865 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:23:04,866 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:23:04,948 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:23:04,959 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:23:04,959 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:23:04,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-16 02:23:05,015 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:23:05,016 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:23:05,017 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:23:05,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:23:05,025 INFO L82 PathProgramCache]: Analyzing trace with hash 291089130, now seen corresponding path program 1 times [2021-10-16 02:23:05,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:23:05,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851512545] [2021-10-16 02:23:05,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:05,045 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:23:05,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:23:05,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:23:05,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:23:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:05,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:23:05,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:23:05,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:23:05,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:23:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:23:05,897 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:23:05,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851512545] [2021-10-16 02:23:05,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851512545] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:23:05,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:23:05,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:23:05,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480681097] [2021-10-16 02:23:05,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:23:05,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:23:05,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:23:05,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:23:05,938 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:23:11,946 INFO L93 Difference]: Finished difference Result 694 states and 1246 transitions. [2021-10-16 02:23:11,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:23:11,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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 46 [2021-10-16 02:23:11,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:23:11,969 INFO L225 Difference]: With dead ends: 694 [2021-10-16 02:23:11,969 INFO L226 Difference]: Without dead ends: 421 [2021-10-16 02:23:11,974 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:23:11,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-16 02:23:12,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-10-16 02:23:12,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.4785714285714286) internal successors, (621), 420 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:12,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 621 transitions. [2021-10-16 02:23:12,081 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 621 transitions. Word has length 46 [2021-10-16 02:23:12,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:23:12,082 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 621 transitions. [2021-10-16 02:23:12,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:12,083 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 621 transitions. [2021-10-16 02:23:12,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-10-16 02:23:12,091 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:23:12,092 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-16 02:23:12,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:23:12,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:23:12,306 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:23:12,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:23:12,307 INFO L82 PathProgramCache]: Analyzing trace with hash 2088772408, now seen corresponding path program 1 times [2021-10-16 02:23:12,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:23:12,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471557975] [2021-10-16 02:23:12,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:12,310 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:23:12,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:23:12,315 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:23:12,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:23:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:12,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:23:12,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:23:14,593 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:23:14,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:23:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:23:18,279 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:23:18,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471557975] [2021-10-16 02:23:18,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471557975] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:23:18,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1946711389] [2021-10-16 02:23:18,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:18,280 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:23:18,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:23:18,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:23:18,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-10-16 02:23:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:18,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:23:18,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:23:19,428 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:23:19,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:23:19,990 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:23:19,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1946711389] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:23:19,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:23:19,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [4, 4] total 7 [2021-10-16 02:23:19,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94376079] [2021-10-16 02:23:19,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:23:19,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:23:19,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:23:19,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:23:19,996 INFO L87 Difference]: Start difference. First operand 421 states and 621 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:24,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:23:24,923 INFO L93 Difference]: Finished difference Result 1396 states and 2046 transitions. [2021-10-16 02:23:24,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:23:24,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 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 [2021-10-16 02:23:24,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:23:24,934 INFO L225 Difference]: With dead ends: 1396 [2021-10-16 02:23:24,934 INFO L226 Difference]: Without dead ends: 977 [2021-10-16 02:23:24,937 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 116.9ms TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:23:24,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-10-16 02:23:25,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2021-10-16 02:23:25,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.334016393442623) internal successors, (1302), 976 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1302 transitions. [2021-10-16 02:23:25,010 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1302 transitions. Word has length 124 [2021-10-16 02:23:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:23:25,011 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1302 transitions. [2021-10-16 02:23:25,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1302 transitions. [2021-10-16 02:23:25,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-10-16 02:23:25,034 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:23:25,035 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-16 02:23:25,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:23:25,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:23:25,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:23:25,456 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:23:25,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:23:25,458 INFO L82 PathProgramCache]: Analyzing trace with hash 706614076, now seen corresponding path program 1 times [2021-10-16 02:23:25,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:23:25,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385591785] [2021-10-16 02:23:25,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:25,461 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:23:25,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:23:25,462 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:23:25,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:23:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:25,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:23:25,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:23:26,771 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:23:26,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:23:27,502 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:23:27,502 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:23:27,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385591785] [2021-10-16 02:23:27,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385591785] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:23:27,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:23:27,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:23:27,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722015024] [2021-10-16 02:23:27,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:23:27,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:23:27,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:23:27,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:23:27,512 INFO L87 Difference]: Start difference. First operand 977 states and 1302 transitions. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:32,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:23:32,966 INFO L93 Difference]: Finished difference Result 2647 states and 3573 transitions. [2021-10-16 02:23:32,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:23:32,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2021-10-16 02:23:32,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:23:32,980 INFO L225 Difference]: With dead ends: 2647 [2021-10-16 02:23:32,981 INFO L226 Difference]: Without dead ends: 1672 [2021-10-16 02:23:32,983 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:23:32,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2021-10-16 02:23:33,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1394. [2021-10-16 02:23:33,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.2986360373295047) internal successors, (1809), 1393 states have internal predecessors, (1809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:33,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1809 transitions. [2021-10-16 02:23:33,035 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1809 transitions. Word has length 206 [2021-10-16 02:23:33,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:23:33,036 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1809 transitions. [2021-10-16 02:23:33,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:33,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1809 transitions. [2021-10-16 02:23:33,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-10-16 02:23:33,044 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:23:33,045 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:23:33,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:23:33,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:23:33,268 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:23:33,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:23:33,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1630242462, now seen corresponding path program 1 times [2021-10-16 02:23:33,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:23:33,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999202226] [2021-10-16 02:23:33,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:33,277 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:23:33,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:23:33,279 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:23:33,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:23:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:34,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:23:34,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:23:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-16 02:23:35,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:23:37,429 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-16 02:23:37,430 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:23:37,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999202226] [2021-10-16 02:23:37,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999202226] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:23:37,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:23:37,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:23:37,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625042890] [2021-10-16 02:23:37,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:23:37,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:23:37,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:23:37,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:23:37,435 INFO L87 Difference]: Start difference. First operand 1394 states and 1809 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:46,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:23:46,235 INFO L93 Difference]: Finished difference Result 3340 states and 4296 transitions. [2021-10-16 02:23:46,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:23:46,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 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 207 [2021-10-16 02:23:46,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:23:46,237 INFO L225 Difference]: With dead ends: 3340 [2021-10-16 02:23:46,237 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:23:46,242 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:23:46,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:23:46,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:23:46,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:46,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:23:46,243 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2021-10-16 02:23:46,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:23:46,244 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:23:46,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:46,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:23:46,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:23:46,247 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:23:46,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-16 02:23:46,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:23:46,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:23:46,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:46,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:46,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:46,830 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-16 02:23:46,830 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-16 02:23:46,831 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-16 02:23:46,831 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-16 02:23:46,831 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-16 02:23:46,831 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-16 02:23:46,831 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,832 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,832 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,832 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,832 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,833 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,833 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-16 02:23:46,833 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-16 02:23:46,833 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-16 02:23:46,834 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-16 02:23:46,834 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-16 02:23:46,834 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-16 02:23:46,834 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-16 02:23:46,835 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-16 02:23:46,835 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-16 02:23:46,835 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-16 02:23:46,835 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-16 02:23:46,835 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-16 02:23:46,836 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-16 02:23:46,836 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,836 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,836 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,837 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,837 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,837 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,837 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-16 02:23:46,838 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-16 02:23:46,838 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-16 02:23:46,838 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-16 02:23:46,838 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-16 02:23:46,838 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-16 02:23:46,839 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-16 02:23:46,839 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-16 02:23:46,839 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-16 02:23:46,839 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-16 02:23:46,840 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-16 02:23:46,840 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-16 02:23:46,840 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,840 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,840 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,844 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,844 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,845 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,845 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-16 02:23:46,845 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-16 02:23:46,845 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-16 02:23:46,845 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-16 02:23:46,846 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-16 02:23:46,846 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-16 02:23:46,846 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-16 02:23:46,846 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-16 02:23:46,847 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-16 02:23:46,847 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-16 02:23:46,847 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-16 02:23:46,847 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-16 02:23:46,847 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-16 02:23:46,848 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,848 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,848 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,848 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,848 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,849 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,849 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-16 02:23:46,849 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-16 02:23:46,849 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-16 02:23:46,849 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-16 02:23:46,850 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-16 02:23:46,850 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-16 02:23:46,850 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-16 02:23:46,850 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-16 02:23:46,850 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-16 02:23:46,851 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-16 02:23:46,851 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-16 02:23:46,851 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,851 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,852 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,852 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,852 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,852 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-16 02:23:46,852 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-16 02:23:46,853 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-16 02:23:46,853 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-16 02:23:46,853 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-16 02:23:46,853 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-16 02:23:46,853 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-16 02:23:46,854 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-16 02:23:46,854 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-16 02:23:46,854 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-16 02:23:46,854 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-16 02:23:46,854 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-16 02:23:46,855 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-16 02:23:46,855 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-16 02:23:46,855 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,855 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,855 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,856 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,856 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,856 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-16 02:23:46,856 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:23:46,856 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-16 02:23:46,857 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-16 02:23:46,857 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-16 02:23:46,857 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-16 02:23:46,857 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-16 02:23:46,858 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (or (not (= (_ bv7 32) ~a19~0)) (and (or (not (= (_ bv1 32) ~a10~0)) (not (bvsle ~a1~0 (_ bv4294967283 32)))) (not (= (_ bv4 32) ~a10~0)) (not (= (_ bv3 32) ~a10~0)) (or (not (bvslt (_ bv218 32) ~a1~0)) (not (= (_ bv0 32) ~a10~0))))) [2021-10-16 02:23:46,858 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-16 02:23:46,858 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-16 02:23:46,859 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-16 02:23:46,859 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-16 02:23:46,859 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,859 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,859 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,860 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,860 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,860 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-16 02:23:46,860 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-16 02:23:46,860 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-16 02:23:46,861 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-16 02:23:46,861 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-16 02:23:46,861 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-16 02:23:46,861 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-16 02:23:46,861 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-16 02:23:46,862 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-16 02:23:46,862 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-16 02:23:46,862 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-16 02:23:46,862 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-16 02:23:46,862 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-16 02:23:46,863 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-16 02:23:46,863 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:23:46,863 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,863 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,864 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,864 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,864 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,864 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-16 02:23:46,864 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-16 02:23:46,865 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-16 02:23:46,865 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-16 02:23:46,865 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-16 02:23:46,865 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-16 02:23:46,865 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-16 02:23:46,866 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-16 02:23:46,866 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-16 02:23:46,866 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,866 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,867 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,867 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,867 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:23:46,867 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,867 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-16 02:23:46,868 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-16 02:23:46,868 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-16 02:23:46,868 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-16 02:23:46,868 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-16 02:23:46,868 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-16 02:23:46,869 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-16 02:23:46,869 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-16 02:23:46,869 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-16 02:23:46,869 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-16 02:23:46,869 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-16 02:23:46,870 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-16 02:23:46,870 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (not (= (_ bv7 32) ~a19~0)) (and (or (not (= (_ bv1 32) ~a10~0)) (not (bvsle ~a1~0 (_ bv4294967283 32)))) (not (= (_ bv4 32) ~a10~0)) (not (= (_ bv3 32) ~a10~0)) (or (not (bvslt (_ bv218 32) ~a1~0)) (not (= (_ bv0 32) ~a10~0))))) [2021-10-16 02:23:46,870 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-16 02:23:46,870 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,871 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,871 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,871 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,871 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-16 02:23:46,872 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,872 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,872 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-16 02:23:46,872 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-16 02:23:46,872 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-16 02:23:46,873 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-16 02:23:46,873 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-16 02:23:46,873 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-16 02:23:46,873 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-16 02:23:46,873 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-16 02:23:46,874 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-16 02:23:46,874 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:23:46,874 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 152) no Hoare annotation was computed. [2021-10-16 02:23:46,874 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-16 02:23:46,874 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-16 02:23:46,875 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-16 02:23:46,875 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-16 02:23:46,875 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,875 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,875 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,876 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,876 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,876 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:23:46,876 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-16 02:23:46,876 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-16 02:23:46,877 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-16 02:23:46,877 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-16 02:23:46,877 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-16 02:23:46,877 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-16 02:23:46,877 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-16 02:23:46,878 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-16 02:23:46,878 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-16 02:23:46,883 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:23:46,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:23:46 BoogieIcfgContainer [2021-10-16 02:23:46,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:23:46,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:23:46,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:23:46,902 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:23:46,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:23:04" (3/4) ... [2021-10-16 02:23:46,906 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:23:46,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-16 02:23:46,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:23:46,932 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:23:46,933 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:23:47,065 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:23:47,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:23:47,067 INFO L168 Benchmark]: Toolchain (without parser) took 47152.50 ms. Allocated memory was 58.7 MB in the beginning and 111.1 MB in the end (delta: 52.4 MB). Free memory was 36.5 MB in the beginning and 53.0 MB in the end (delta: -16.5 MB). Peak memory consumption was 35.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:47,067 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 58.7 MB. Free memory is still 39.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:23:47,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 870.71 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.4 MB in the beginning and 48.4 MB in the end (delta: -12.0 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:47,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.01 ms. Allocated memory is still 71.3 MB. Free memory was 48.1 MB in the beginning and 43.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:47,069 INFO L168 Benchmark]: Boogie Preprocessor took 80.74 ms. Allocated memory is still 71.3 MB. Free memory was 43.0 MB in the beginning and 38.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:47,069 INFO L168 Benchmark]: RCFGBuilder took 3866.82 ms. Allocated memory is still 71.3 MB. Free memory was 38.6 MB in the beginning and 38.1 MB in the end (delta: 440.6 kB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:47,070 INFO L168 Benchmark]: TraceAbstraction took 42054.45 ms. Allocated memory was 71.3 MB in the beginning and 111.1 MB in the end (delta: 39.8 MB). Free memory was 37.7 MB in the beginning and 68.0 MB in the end (delta: -30.2 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:47,070 INFO L168 Benchmark]: Witness Printer took 163.95 ms. Allocated memory is still 111.1 MB. Free memory was 67.0 MB in the beginning and 53.0 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:47,073 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 58.7 MB. Free memory is still 39.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 870.71 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.4 MB in the beginning and 48.4 MB in the end (delta: -12.0 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.01 ms. Allocated memory is still 71.3 MB. Free memory was 48.1 MB in the beginning and 43.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.74 ms. Allocated memory is still 71.3 MB. Free memory was 43.0 MB in the beginning and 38.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3866.82 ms. Allocated memory is still 71.3 MB. Free memory was 38.6 MB in the beginning and 38.1 MB in the end (delta: 440.6 kB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 42054.45 ms. Allocated memory was 71.3 MB in the beginning and 111.1 MB in the end (delta: 39.8 MB). Free memory was 37.7 MB in the beginning and 68.0 MB in the end (delta: -30.2 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. * Witness Printer took 163.95 ms. Allocated memory is still 111.1 MB. Free memory was 67.0 MB in the beginning and 53.0 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 152]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41937.3ms, OverallIterations: 4, TraceHistogramMax: 3, EmptinessCheckTime: 70.6ms, AutomataDifference: 25286.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 367.1ms, InitialAbstractionConstructionTime: 22.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 85 SDtfs, 666 SDslu, 36 SDs, 0 SdLazy, 2461 SolverSat, 731 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21286.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1404 GetRequests, 1392 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 169.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1394occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 215.5ms AutomataMinimizationTime, 4 MinimizatonAttempts, 278 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 34 NumberOfFragments, 65 HoareAnnotationTreeSize, 3 FomulaSimplifications, 296 FormulaSimplificationTreeSizeReduction, 151.1ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 316 FormulaSimplificationTreeSizeReductionInter, 208.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 151.3ms SsaConstructionTime, 486.3ms SatisfiabilityAnalysisTime, 12552.1ms InterpolantComputationTime, 707 NumberOfCodeBlocks, 707 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1404 ConstructedInterpolants, 0 QuantifiedInterpolants, 7502 SizeOfPredicates, 7 NumberOfNonLiveVariables, 950 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 718/804 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: !(7bv32 == a19) || ((((!(1bv32 == a10) || !~bvsle32(a1, 4294967283bv32)) && !(4bv32 == a10)) && !(3bv32 == a10)) && (!~bvslt32(218bv32, a1) || !(0bv32 == a10))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: !(7bv32 == a19) || ((((!(1bv32 == a10) || !~bvsle32(a1, 4294967283bv32)) && !(4bv32 == a10)) && !(3bv32 == a10)) && (!~bvslt32(218bv32, a1) || !(0bv32 == a10))) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-16 02:23:47,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db541dc-ab77-43b6-8f9e-05a5bc46b5f9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...