./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label47.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label47.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69e53a5f887b798320aa40402d512baa70efc113 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:25:32,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:25:32,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:25:32,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:25:32,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:25:32,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:25:32,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:25:32,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:25:32,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:25:32,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:25:32,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:25:32,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:25:32,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:25:32,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:25:32,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:25:32,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:25:32,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:25:32,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:25:32,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:25:32,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:25:32,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:25:32,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:25:32,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:25:32,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:25:32,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:25:32,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:25:32,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:25:32,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:25:32,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:25:32,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:25:32,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:25:32,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:25:32,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:25:32,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:25:32,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:25:32,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:25:32,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:25:32,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:25:32,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:25:32,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:25:32,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:25:32,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:25:32,641 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:25:32,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:25:32,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:25:32,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:25:32,642 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:25:32,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:25:32,643 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:25:32,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:25:32,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:25:32,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:25:32,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:25:32,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:25:32,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:25:32,644 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:25:32,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:25:32,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:25:32,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:25:32,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:25:32,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:25:32,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:25:32,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:25:32,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:25:32,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:25:32,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:25:32,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:25:32,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:25:32,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:25:32,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:25:32,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69e53a5f887b798320aa40402d512baa70efc113 [2021-10-11 00:25:32,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:25:32,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:25:33,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:25:33,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:25:33,005 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:25:33,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/eca-rers2012/Problem02_label47.c [2021-10-11 00:25:33,102 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/data/074845c65/5b36d15b514341c2a01d2bf2b047ef63/FLAGd37536111 [2021-10-11 00:25:33,768 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:25:33,768 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/sv-benchmarks/c/eca-rers2012/Problem02_label47.c [2021-10-11 00:25:33,785 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/data/074845c65/5b36d15b514341c2a01d2bf2b047ef63/FLAGd37536111 [2021-10-11 00:25:34,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/data/074845c65/5b36d15b514341c2a01d2bf2b047ef63 [2021-10-11 00:25:34,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:25:34,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:25:34,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:34,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:25:34,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:25:34,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:34" (1/1) ... [2021-10-11 00:25:34,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32642622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34, skipping insertion in model container [2021-10-11 00:25:34,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:34" (1/1) ... [2021-10-11 00:25:34,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:25:34,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:25:34,457 WARN L226 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_72d8ac24-9678-486f-aabe-5cd9d834d7cf/sv-benchmarks/c/eca-rers2012/Problem02_label47.c[17583,17596] [2021-10-11 00:25:34,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:34,515 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:25:34,624 WARN L226 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_72d8ac24-9678-486f-aabe-5cd9d834d7cf/sv-benchmarks/c/eca-rers2012/Problem02_label47.c[17583,17596] [2021-10-11 00:25:34,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:34,658 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:25:34,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34 WrapperNode [2021-10-11 00:25:34,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:34,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:34,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:25:34,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:25:34,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34" (1/1) ... [2021-10-11 00:25:34,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34" (1/1) ... [2021-10-11 00:25:34,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:34,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:25:34,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:25:34,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:25:34,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34" (1/1) ... [2021-10-11 00:25:34,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34" (1/1) ... [2021-10-11 00:25:34,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34" (1/1) ... [2021-10-11 00:25:34,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34" (1/1) ... [2021-10-11 00:25:34,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34" (1/1) ... [2021-10-11 00:25:34,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34" (1/1) ... [2021-10-11 00:25:34,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34" (1/1) ... [2021-10-11 00:25:34,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:25:34,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:25:34,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:25:34,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:25:34,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:25:34,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:25:34,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:25:34,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:25:34,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:25:36,317 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:25:36,318 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:25:36,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:36 BoogieIcfgContainer [2021-10-11 00:25:36,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:25:36,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:25:36,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:25:36,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:25:36,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:25:34" (1/3) ... [2021-10-11 00:25:36,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b11056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:25:36, skipping insertion in model container [2021-10-11 00:25:36,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:34" (2/3) ... [2021-10-11 00:25:36,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b11056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:25:36, skipping insertion in model container [2021-10-11 00:25:36,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:36" (3/3) ... [2021-10-11 00:25:36,330 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label47.c [2021-10-11 00:25:36,343 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:25:36,347 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:25:36,358 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:25:36,385 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:25:36,386 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:25:36,386 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:25:36,386 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:25:36,386 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:25:36,386 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:25:36,387 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:25:36,387 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:25:36,420 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states. [2021-10-11 00:25:36,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-10-11 00:25:36,443 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:36,444 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:36,444 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:36,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:36,452 INFO L82 PathProgramCache]: Analyzing trace with hash 978014419, now seen corresponding path program 1 times [2021-10-11 00:25:36,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:36,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000068510] [2021-10-11 00:25:36,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:37,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000068510] [2021-10-11 00:25:37,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:37,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:25:37,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783911530] [2021-10-11 00:25:37,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:37,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:37,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:37,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:25:37,105 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 3 states. [2021-10-11 00:25:38,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:38,140 INFO L93 Difference]: Finished difference Result 639 states and 1082 transitions. [2021-10-11 00:25:38,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:38,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2021-10-11 00:25:38,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:38,159 INFO L225 Difference]: With dead ends: 639 [2021-10-11 00:25:38,159 INFO L226 Difference]: Without dead ends: 318 [2021-10-11 00:25:38,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:25:38,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-10-11 00:25:38,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2021-10-11 00:25:38,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2021-10-11 00:25:38,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2021-10-11 00:25:38,224 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 107 [2021-10-11 00:25:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:38,226 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2021-10-11 00:25:38,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:38,226 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2021-10-11 00:25:38,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-10-11 00:25:38,233 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:38,233 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:38,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:25:38,234 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:38,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:38,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1155726472, now seen corresponding path program 1 times [2021-10-11 00:25:38,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:38,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646060445] [2021-10-11 00:25:38,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:38,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:38,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646060445] [2021-10-11 00:25:38,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:38,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:25:38,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827212464] [2021-10-11 00:25:38,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:38,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:38,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:38,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:25:38,342 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand 3 states. [2021-10-11 00:25:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:39,028 INFO L93 Difference]: Finished difference Result 910 states and 1341 transitions. [2021-10-11 00:25:39,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:39,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2021-10-11 00:25:39,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:39,034 INFO L225 Difference]: With dead ends: 910 [2021-10-11 00:25:39,034 INFO L226 Difference]: Without dead ends: 599 [2021-10-11 00:25:39,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:25:39,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-10-11 00:25:39,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 596. [2021-10-11 00:25:39,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2021-10-11 00:25:39,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 772 transitions. [2021-10-11 00:25:39,081 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 772 transitions. Word has length 111 [2021-10-11 00:25:39,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:39,081 INFO L481 AbstractCegarLoop]: Abstraction has 596 states and 772 transitions. [2021-10-11 00:25:39,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:39,082 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 772 transitions. [2021-10-11 00:25:39,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-10-11 00:25:39,091 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:39,092 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:39,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:25:39,092 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:39,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:39,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1413995037, now seen corresponding path program 1 times [2021-10-11 00:25:39,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:39,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391210020] [2021-10-11 00:25:39,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:39,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391210020] [2021-10-11 00:25:39,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654543902] [2021-10-11 00:25:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:39,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:25:39,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:25:39,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:25:39,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-11 00:25:39,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006016610] [2021-10-11 00:25:39,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:39,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:39,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:39,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:39,577 INFO L87 Difference]: Start difference. First operand 596 states and 772 transitions. Second operand 3 states. [2021-10-11 00:25:40,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:40,312 INFO L93 Difference]: Finished difference Result 1475 states and 1963 transitions. [2021-10-11 00:25:40,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:40,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2021-10-11 00:25:40,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:40,326 INFO L225 Difference]: With dead ends: 1475 [2021-10-11 00:25:40,327 INFO L226 Difference]: Without dead ends: 881 [2021-10-11 00:25:40,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:40,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2021-10-11 00:25:40,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 880. [2021-10-11 00:25:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2021-10-11 00:25:40,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1150 transitions. [2021-10-11 00:25:40,371 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1150 transitions. Word has length 116 [2021-10-11 00:25:40,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:40,373 INFO L481 AbstractCegarLoop]: Abstraction has 880 states and 1150 transitions. [2021-10-11 00:25:40,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:40,374 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1150 transitions. [2021-10-11 00:25:40,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-10-11 00:25:40,382 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:40,383 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:40,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-11 00:25:40,604 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:40,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:40,604 INFO L82 PathProgramCache]: Analyzing trace with hash 923666866, now seen corresponding path program 1 times [2021-10-11 00:25:40,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:40,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289582680] [2021-10-11 00:25:40,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:40,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289582680] [2021-10-11 00:25:40,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328627286] [2021-10-11 00:25:40,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:40,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:25:40,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:41,050 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-11 00:25:41,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:25:41,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-11 00:25:41,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726448723] [2021-10-11 00:25:41,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:41,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:41,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:41,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:41,053 INFO L87 Difference]: Start difference. First operand 880 states and 1150 transitions. Second operand 3 states. [2021-10-11 00:25:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:41,677 INFO L93 Difference]: Finished difference Result 2334 states and 3111 transitions. [2021-10-11 00:25:41,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:41,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2021-10-11 00:25:41,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:41,687 INFO L225 Difference]: With dead ends: 2334 [2021-10-11 00:25:41,687 INFO L226 Difference]: Without dead ends: 1456 [2021-10-11 00:25:41,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:41,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2021-10-11 00:25:41,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1456. [2021-10-11 00:25:41,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1456 states. [2021-10-11 00:25:41,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1894 transitions. [2021-10-11 00:25:41,721 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1894 transitions. Word has length 116 [2021-10-11 00:25:41,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:41,722 INFO L481 AbstractCegarLoop]: Abstraction has 1456 states and 1894 transitions. [2021-10-11 00:25:41,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:41,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1894 transitions. [2021-10-11 00:25:41,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-10-11 00:25:41,726 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:41,726 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:41,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:41,955 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:41,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:41,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1446507998, now seen corresponding path program 2 times [2021-10-11 00:25:41,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:41,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025502644] [2021-10-11 00:25:41,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:42,019 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 00:25:42,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025502644] [2021-10-11 00:25:42,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394920169] [2021-10-11 00:25:42,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:42,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-11 00:25:42,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 00:25:42,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:25:42,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:42,308 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 00:25:42,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:25:42,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-11 00:25:42,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232256414] [2021-10-11 00:25:42,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:42,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:42,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:42,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:42,311 INFO L87 Difference]: Start difference. First operand 1456 states and 1894 transitions. Second operand 3 states. [2021-10-11 00:25:43,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:43,048 INFO L93 Difference]: Finished difference Result 3476 states and 4597 transitions. [2021-10-11 00:25:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:43,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2021-10-11 00:25:43,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:43,061 INFO L225 Difference]: With dead ends: 3476 [2021-10-11 00:25:43,061 INFO L226 Difference]: Without dead ends: 2022 [2021-10-11 00:25:43,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:43,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2021-10-11 00:25:43,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 2016. [2021-10-11 00:25:43,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2016 states. [2021-10-11 00:25:43,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2664 transitions. [2021-10-11 00:25:43,123 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2664 transitions. Word has length 121 [2021-10-11 00:25:43,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:43,124 INFO L481 AbstractCegarLoop]: Abstraction has 2016 states and 2664 transitions. [2021-10-11 00:25:43,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:43,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2664 transitions. [2021-10-11 00:25:43,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-10-11 00:25:43,129 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:43,129 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:43,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:43,345 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:43,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:43,345 INFO L82 PathProgramCache]: Analyzing trace with hash -2091494488, now seen corresponding path program 1 times [2021-10-11 00:25:43,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:43,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711954578] [2021-10-11 00:25:43,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-11 00:25:43,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711954578] [2021-10-11 00:25:43,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525385174] [2021-10-11 00:25:43,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:43,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:25:43,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:43,647 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:25:43,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:25:43,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-11 00:25:43,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597942125] [2021-10-11 00:25:43,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:43,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:43,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:43,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:43,650 INFO L87 Difference]: Start difference. First operand 2016 states and 2664 transitions. Second operand 3 states. [2021-10-11 00:25:44,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:44,246 INFO L93 Difference]: Finished difference Result 4592 states and 6049 transitions. [2021-10-11 00:25:44,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:44,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2021-10-11 00:25:44,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:44,263 INFO L225 Difference]: With dead ends: 4592 [2021-10-11 00:25:44,263 INFO L226 Difference]: Without dead ends: 2578 [2021-10-11 00:25:44,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:44,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2578 states. [2021-10-11 00:25:44,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2578 to 2576. [2021-10-11 00:25:44,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2576 states. [2021-10-11 00:25:44,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2576 states to 2576 states and 3174 transitions. [2021-10-11 00:25:44,335 INFO L78 Accepts]: Start accepts. Automaton has 2576 states and 3174 transitions. Word has length 125 [2021-10-11 00:25:44,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:44,335 INFO L481 AbstractCegarLoop]: Abstraction has 2576 states and 3174 transitions. [2021-10-11 00:25:44,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:44,335 INFO L276 IsEmpty]: Start isEmpty. Operand 2576 states and 3174 transitions. [2021-10-11 00:25:44,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-10-11 00:25:44,342 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:44,342 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:44,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:44,558 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:44,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:44,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1318772014, now seen corresponding path program 1 times [2021-10-11 00:25:44,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:44,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905639557] [2021-10-11 00:25:44,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-11 00:25:44,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905639557] [2021-10-11 00:25:44,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:44,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:25:44,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349218667] [2021-10-11 00:25:44,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:44,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:44,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:44,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:25:44,620 INFO L87 Difference]: Start difference. First operand 2576 states and 3174 transitions. Second operand 3 states. [2021-10-11 00:25:45,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:45,394 INFO L93 Difference]: Finished difference Result 6969 states and 8570 transitions. [2021-10-11 00:25:45,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:45,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2021-10-11 00:25:45,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:45,424 INFO L225 Difference]: With dead ends: 6969 [2021-10-11 00:25:45,424 INFO L226 Difference]: Without dead ends: 4395 [2021-10-11 00:25:45,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:25:45,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2021-10-11 00:25:45,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 4395. [2021-10-11 00:25:45,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4395 states. [2021-10-11 00:25:45,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4395 states to 4395 states and 5147 transitions. [2021-10-11 00:25:45,558 INFO L78 Accepts]: Start accepts. Automaton has 4395 states and 5147 transitions. Word has length 126 [2021-10-11 00:25:45,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:45,558 INFO L481 AbstractCegarLoop]: Abstraction has 4395 states and 5147 transitions. [2021-10-11 00:25:45,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:45,558 INFO L276 IsEmpty]: Start isEmpty. Operand 4395 states and 5147 transitions. [2021-10-11 00:25:45,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-10-11 00:25:45,566 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:45,566 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:45,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:25:45,567 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:45,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:45,568 INFO L82 PathProgramCache]: Analyzing trace with hash -2132684050, now seen corresponding path program 1 times [2021-10-11 00:25:45,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:45,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72532320] [2021-10-11 00:25:45,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:45,717 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-11 00:25:45,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72532320] [2021-10-11 00:25:45,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142932887] [2021-10-11 00:25:45,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:45,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:25:45,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:45,957 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-11 00:25:45,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:25:45,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-11 00:25:45,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036151366] [2021-10-11 00:25:45,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:45,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:45,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:45,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:45,960 INFO L87 Difference]: Start difference. First operand 4395 states and 5147 transitions. Second operand 3 states. [2021-10-11 00:25:46,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:46,353 INFO L93 Difference]: Finished difference Result 7928 states and 9293 transitions. [2021-10-11 00:25:46,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:46,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2021-10-11 00:25:46,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:46,374 INFO L225 Difference]: With dead ends: 7928 [2021-10-11 00:25:46,374 INFO L226 Difference]: Without dead ends: 3535 [2021-10-11 00:25:46,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:46,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2021-10-11 00:25:46,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3535. [2021-10-11 00:25:46,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3535 states. [2021-10-11 00:25:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3535 states to 3535 states and 4053 transitions. [2021-10-11 00:25:46,472 INFO L78 Accepts]: Start accepts. Automaton has 3535 states and 4053 transitions. Word has length 131 [2021-10-11 00:25:46,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:46,473 INFO L481 AbstractCegarLoop]: Abstraction has 3535 states and 4053 transitions. [2021-10-11 00:25:46,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:46,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3535 states and 4053 transitions. [2021-10-11 00:25:46,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-10-11 00:25:46,481 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:46,481 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:46,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:46,694 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:46,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:46,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1242957883, now seen corresponding path program 1 times [2021-10-11 00:25:46,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:46,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600236351] [2021-10-11 00:25:46,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:46,891 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 49 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-11 00:25:46,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600236351] [2021-10-11 00:25:46,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124210144] [2021-10-11 00:25:46,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:47,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:25:47,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:47,156 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-11 00:25:47,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:25:47,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-11 00:25:47,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954950621] [2021-10-11 00:25:47,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:47,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:47,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:47,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:25:47,158 INFO L87 Difference]: Start difference. First operand 3535 states and 4053 transitions. Second operand 3 states. [2021-10-11 00:25:47,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:47,778 INFO L93 Difference]: Finished difference Result 6926 states and 7957 transitions. [2021-10-11 00:25:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:47,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2021-10-11 00:25:47,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:47,797 INFO L225 Difference]: With dead ends: 6926 [2021-10-11 00:25:47,797 INFO L226 Difference]: Without dead ends: 3533 [2021-10-11 00:25:47,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:25:47,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2021-10-11 00:25:47,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 2413. [2021-10-11 00:25:47,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2413 states. [2021-10-11 00:25:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 2674 transitions. [2021-10-11 00:25:47,863 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 2674 transitions. Word has length 149 [2021-10-11 00:25:47,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:47,863 INFO L481 AbstractCegarLoop]: Abstraction has 2413 states and 2674 transitions. [2021-10-11 00:25:47,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:47,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 2674 transitions. [2021-10-11 00:25:47,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-10-11 00:25:47,869 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:47,869 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:48,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:48,083 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:48,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:48,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1365269292, now seen corresponding path program 1 times [2021-10-11 00:25:48,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:48,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063505614] [2021-10-11 00:25:48,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-11 00:25:48,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063505614] [2021-10-11 00:25:48,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:48,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:25:48,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565456552] [2021-10-11 00:25:48,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:48,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:48,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:48,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:25:48,163 INFO L87 Difference]: Start difference. First operand 2413 states and 2674 transitions. Second operand 3 states. [2021-10-11 00:25:48,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:48,741 INFO L93 Difference]: Finished difference Result 5522 states and 6115 transitions. [2021-10-11 00:25:48,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:48,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2021-10-11 00:25:48,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:48,756 INFO L225 Difference]: With dead ends: 5522 [2021-10-11 00:25:48,757 INFO L226 Difference]: Without dead ends: 3108 [2021-10-11 00:25:48,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:25:48,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2021-10-11 00:25:48,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 3104. [2021-10-11 00:25:48,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3104 states. [2021-10-11 00:25:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 3335 transitions. [2021-10-11 00:25:48,821 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 3335 transitions. Word has length 156 [2021-10-11 00:25:48,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:48,822 INFO L481 AbstractCegarLoop]: Abstraction has 3104 states and 3335 transitions. [2021-10-11 00:25:48,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 3335 transitions. [2021-10-11 00:25:48,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-10-11 00:25:48,830 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:48,830 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-10-11 00:25:48,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:25:48,830 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:48,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:48,831 INFO L82 PathProgramCache]: Analyzing trace with hash -880273037, now seen corresponding path program 1 times [2021-10-11 00:25:48,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:48,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824559429] [2021-10-11 00:25:48,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:48,947 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-11 00:25:48,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824559429] [2021-10-11 00:25:48,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:48,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:25:48,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463112102] [2021-10-11 00:25:48,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:48,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:48,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:48,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:25:48,949 INFO L87 Difference]: Start difference. First operand 3104 states and 3335 transitions. Second operand 3 states. [2021-10-11 00:25:49,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:49,450 INFO L93 Difference]: Finished difference Result 6344 states and 6826 transitions. [2021-10-11 00:25:49,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:49,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2021-10-11 00:25:49,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:49,461 INFO L225 Difference]: With dead ends: 6344 [2021-10-11 00:25:49,461 INFO L226 Difference]: Without dead ends: 2677 [2021-10-11 00:25:49,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:25:49,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2021-10-11 00:25:49,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2677. [2021-10-11 00:25:49,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2677 states. [2021-10-11 00:25:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 2861 transitions. [2021-10-11 00:25:49,516 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 2861 transitions. Word has length 206 [2021-10-11 00:25:49,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:49,516 INFO L481 AbstractCegarLoop]: Abstraction has 2677 states and 2861 transitions. [2021-10-11 00:25:49,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 2861 transitions. [2021-10-11 00:25:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-10-11 00:25:49,525 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:49,525 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:49,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 00:25:49,526 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:49,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:49,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1232928807, now seen corresponding path program 1 times [2021-10-11 00:25:49,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:49,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763918570] [2021-10-11 00:25:49,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:49,636 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 40 proven. 3 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-10-11 00:25:49,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763918570] [2021-10-11 00:25:49,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648351652] [2021-10-11 00:25:49,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:49,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:25:49,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:50,122 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-11 00:25:50,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:25:50,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-11 00:25:50,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732945358] [2021-10-11 00:25:50,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:50,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:50,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:50,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:50,124 INFO L87 Difference]: Start difference. First operand 2677 states and 2861 transitions. Second operand 3 states. [2021-10-11 00:25:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:50,620 INFO L93 Difference]: Finished difference Result 5350 states and 5722 transitions. [2021-10-11 00:25:50,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:50,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2021-10-11 00:25:50,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:50,621 INFO L225 Difference]: With dead ends: 5350 [2021-10-11 00:25:50,621 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:25:50,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:25:50,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:25:50,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:25:50,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:25:50,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:25:50,624 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 268 [2021-10-11 00:25:50,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:50,625 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:25:50,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:50,625 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:25:50,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:25:50,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:25:50,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:25:51,085 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-10-11 00:25:51,227 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2021-10-11 00:25:51,230 INFO L262 CegarLoopResult]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,230 INFO L262 CegarLoopResult]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,231 INFO L262 CegarLoopResult]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,231 INFO L262 CegarLoopResult]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-10-11 00:25:51,231 INFO L262 CegarLoopResult]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-10-11 00:25:51,231 INFO L262 CegarLoopResult]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-10-11 00:25:51,232 INFO L262 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2021-10-11 00:25:51,232 INFO L262 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2021-10-11 00:25:51,232 INFO L262 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2021-10-11 00:25:51,232 INFO L262 CegarLoopResult]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-10-11 00:25:51,232 INFO L262 CegarLoopResult]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-10-11 00:25:51,232 INFO L262 CegarLoopResult]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,232 INFO L262 CegarLoopResult]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,233 INFO L262 CegarLoopResult]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,233 INFO L262 CegarLoopResult]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-10-11 00:25:51,233 INFO L262 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2021-10-11 00:25:51,233 INFO L262 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2021-10-11 00:25:51,233 INFO L262 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2021-10-11 00:25:51,233 INFO L262 CegarLoopResult]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-10-11 00:25:51,233 INFO L262 CegarLoopResult]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,233 INFO L262 CegarLoopResult]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,234 INFO L262 CegarLoopResult]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,234 INFO L262 CegarLoopResult]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-10-11 00:25:51,234 INFO L262 CegarLoopResult]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-10-11 00:25:51,234 INFO L262 CegarLoopResult]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-10-11 00:25:51,234 INFO L262 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2021-10-11 00:25:51,234 INFO L262 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2021-10-11 00:25:51,234 INFO L262 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2021-10-11 00:25:51,235 INFO L262 CegarLoopResult]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-10-11 00:25:51,235 INFO L262 CegarLoopResult]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-10-11 00:25:51,235 INFO L262 CegarLoopResult]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-10-11 00:25:51,235 INFO L262 CegarLoopResult]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-10-11 00:25:51,235 INFO L262 CegarLoopResult]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,235 INFO L262 CegarLoopResult]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,235 INFO L262 CegarLoopResult]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,235 INFO L262 CegarLoopResult]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-10-11 00:25:51,236 INFO L262 CegarLoopResult]: For program point L575(line 575) no Hoare annotation was computed. [2021-10-11 00:25:51,236 INFO L262 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2021-10-11 00:25:51,236 INFO L262 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2021-10-11 00:25:51,236 INFO L262 CegarLoopResult]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-10-11 00:25:51,236 INFO L262 CegarLoopResult]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-10-11 00:25:51,236 INFO L262 CegarLoopResult]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-10-11 00:25:51,236 INFO L262 CegarLoopResult]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,237 INFO L262 CegarLoopResult]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,237 INFO L262 CegarLoopResult]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,237 INFO L262 CegarLoopResult]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-10-11 00:25:51,237 INFO L262 CegarLoopResult]: For program point L578(line 578) no Hoare annotation was computed. [2021-10-11 00:25:51,237 INFO L262 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2021-10-11 00:25:51,237 INFO L262 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2021-10-11 00:25:51,237 INFO L262 CegarLoopResult]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-10-11 00:25:51,238 INFO L262 CegarLoopResult]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-10-11 00:25:51,238 INFO L262 CegarLoopResult]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-10-11 00:25:51,238 INFO L262 CegarLoopResult]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,238 INFO L262 CegarLoopResult]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,238 INFO L262 CegarLoopResult]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,238 INFO L262 CegarLoopResult]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-10-11 00:25:51,238 INFO L262 CegarLoopResult]: For program point L581(line 581) no Hoare annotation was computed. [2021-10-11 00:25:51,239 INFO L262 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2021-10-11 00:25:51,239 INFO L262 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2021-10-11 00:25:51,239 INFO L262 CegarLoopResult]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-10-11 00:25:51,239 INFO L262 CegarLoopResult]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,239 INFO L262 CegarLoopResult]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,239 INFO L262 CegarLoopResult]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,239 INFO L262 CegarLoopResult]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-10-11 00:25:51,239 INFO L262 CegarLoopResult]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-10-11 00:25:51,240 INFO L262 CegarLoopResult]: For program point L584(line 584) no Hoare annotation was computed. [2021-10-11 00:25:51,240 INFO L262 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2021-10-11 00:25:51,240 INFO L262 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2021-10-11 00:25:51,240 INFO L262 CegarLoopResult]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-10-11 00:25:51,240 INFO L262 CegarLoopResult]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-10-11 00:25:51,240 INFO L262 CegarLoopResult]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-10-11 00:25:51,240 INFO L262 CegarLoopResult]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,241 INFO L262 CegarLoopResult]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,241 INFO L262 CegarLoopResult]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,241 INFO L262 CegarLoopResult]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-10-11 00:25:51,241 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:25:51,241 INFO L262 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2021-10-11 00:25:51,241 INFO L262 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2021-10-11 00:25:51,241 INFO L262 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2021-10-11 00:25:51,241 INFO L262 CegarLoopResult]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-10-11 00:25:51,242 INFO L262 CegarLoopResult]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-10-11 00:25:51,242 INFO L262 CegarLoopResult]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-10-11 00:25:51,242 INFO L262 CegarLoopResult]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-10-11 00:25:51,242 INFO L262 CegarLoopResult]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,242 INFO L262 CegarLoopResult]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,242 INFO L262 CegarLoopResult]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,242 INFO L262 CegarLoopResult]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-10-11 00:25:51,242 INFO L262 CegarLoopResult]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-10-11 00:25:51,243 INFO L262 CegarLoopResult]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-10-11 00:25:51,243 INFO L262 CegarLoopResult]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-10-11 00:25:51,243 INFO L262 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2021-10-11 00:25:51,243 INFO L262 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2021-10-11 00:25:51,243 INFO L262 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2021-10-11 00:25:51,243 INFO L262 CegarLoopResult]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-10-11 00:25:51,243 INFO L262 CegarLoopResult]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-10-11 00:25:51,244 INFO L262 CegarLoopResult]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,244 INFO L262 CegarLoopResult]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,244 INFO L262 CegarLoopResult]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,244 INFO L262 CegarLoopResult]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-10-11 00:25:51,244 INFO L262 CegarLoopResult]: For program point L593(line 593) no Hoare annotation was computed. [2021-10-11 00:25:51,244 INFO L262 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2021-10-11 00:25:51,244 INFO L262 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2021-10-11 00:25:51,244 INFO L262 CegarLoopResult]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-10-11 00:25:51,245 INFO L262 CegarLoopResult]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-10-11 00:25:51,245 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:25:51,245 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 503) no Hoare annotation was computed. [2021-10-11 00:25:51,245 INFO L262 CegarLoopResult]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,245 INFO L262 CegarLoopResult]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,245 INFO L262 CegarLoopResult]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,245 INFO L262 CegarLoopResult]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-10-11 00:25:51,246 INFO L262 CegarLoopResult]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-10-11 00:25:51,246 INFO L262 CegarLoopResult]: For program point L596(line 596) no Hoare annotation was computed. [2021-10-11 00:25:51,246 INFO L262 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2021-10-11 00:25:51,246 INFO L262 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2021-10-11 00:25:51,246 INFO L262 CegarLoopResult]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-10-11 00:25:51,246 INFO L262 CegarLoopResult]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-10-11 00:25:51,246 INFO L262 CegarLoopResult]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-10-11 00:25:51,246 INFO L262 CegarLoopResult]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,247 INFO L262 CegarLoopResult]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,247 INFO L262 CegarLoopResult]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,247 INFO L262 CegarLoopResult]: For program point L599(line 599) no Hoare annotation was computed. [2021-10-11 00:25:51,247 INFO L262 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2021-10-11 00:25:51,247 INFO L262 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2021-10-11 00:25:51,247 INFO L262 CegarLoopResult]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-10-11 00:25:51,247 INFO L262 CegarLoopResult]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-10-11 00:25:51,247 INFO L262 CegarLoopResult]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,248 INFO L262 CegarLoopResult]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,248 INFO L262 CegarLoopResult]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,248 INFO L262 CegarLoopResult]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-10-11 00:25:51,248 INFO L262 CegarLoopResult]: For program point L602(line 602) no Hoare annotation was computed. [2021-10-11 00:25:51,248 INFO L262 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2021-10-11 00:25:51,248 INFO L262 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2021-10-11 00:25:51,248 INFO L262 CegarLoopResult]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-10-11 00:25:51,249 INFO L262 CegarLoopResult]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-10-11 00:25:51,249 INFO L262 CegarLoopResult]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-10-11 00:25:51,249 INFO L262 CegarLoopResult]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-10-11 00:25:51,249 INFO L262 CegarLoopResult]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-10-11 00:25:51,249 INFO L262 CegarLoopResult]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-10-11 00:25:51,249 INFO L262 CegarLoopResult]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-10-11 00:25:51,249 INFO L262 CegarLoopResult]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,249 INFO L262 CegarLoopResult]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,250 INFO L262 CegarLoopResult]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-10-11 00:25:51,250 INFO L262 CegarLoopResult]: For program point L605(line 605) no Hoare annotation was computed. [2021-10-11 00:25:51,250 INFO L262 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2021-10-11 00:25:51,250 INFO L262 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2021-10-11 00:25:51,250 INFO L262 CegarLoopResult]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-10-11 00:25:51,250 INFO L262 CegarLoopResult]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-10-11 00:25:51,250 INFO L262 CegarLoopResult]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-10-11 00:25:51,250 INFO L262 CegarLoopResult]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-10-11 00:25:51,251 INFO L262 CegarLoopResult]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-10-11 00:25:51,251 INFO L258 CegarLoopResult]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse3 (= ~a19~0 1)) (.cse1 (= ~a25~0 0)) (.cse6 (<= ~a28~0 7)) (.cse7 (<= ~a11~0 0)) (.cse0 (<= ~a19~0 0)) (.cse5 (= ~a25~0 1)) (.cse4 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1 (<= ~a17~0 7) .cse2) (and (<= 9 ~a28~0) .cse3 .cse4 .cse2) (and .cse3 .cse5 .cse6 .cse4) (and .cse7 .cse3 .cse5 .cse4) (and .cse0 (<= ~a28~0 9) .cse4) (and (= ~a25~0 ~a11~0) .cse3 .cse1 .cse6 .cse4) (and .cse7 .cse0 .cse5 .cse4 .cse2))) [2021-10-11 00:25:51,251 INFO L262 CegarLoopResult]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,251 INFO L262 CegarLoopResult]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,252 INFO L262 CegarLoopResult]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-10-11 00:25:51,252 INFO L262 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2021-10-11 00:25:51,252 INFO L262 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2021-10-11 00:25:51,252 INFO L262 CegarLoopResult]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-10-11 00:25:51,252 INFO L262 CegarLoopResult]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-10-11 00:25:51,252 INFO L262 CegarLoopResult]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-10-11 00:25:51,252 INFO L265 CegarLoopResult]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-10-11 00:25:51,252 INFO L262 CegarLoopResult]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,253 INFO L262 CegarLoopResult]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,253 INFO L262 CegarLoopResult]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-10-11 00:25:51,253 INFO L262 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2021-10-11 00:25:51,253 INFO L262 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2021-10-11 00:25:51,253 INFO L262 CegarLoopResult]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-10-11 00:25:51,253 INFO L262 CegarLoopResult]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-10-11 00:25:51,253 INFO L262 CegarLoopResult]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-10-11 00:25:51,253 INFO L262 CegarLoopResult]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-10-11 00:25:51,254 INFO L262 CegarLoopResult]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-10-11 00:25:51,254 INFO L262 CegarLoopResult]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-10-11 00:25:51,254 INFO L262 CegarLoopResult]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,254 INFO L262 CegarLoopResult]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,254 INFO L262 CegarLoopResult]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-10-11 00:25:51,254 INFO L262 CegarLoopResult]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-10-11 00:25:51,254 INFO L262 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2021-10-11 00:25:51,255 INFO L262 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2021-10-11 00:25:51,255 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:25:51,255 INFO L262 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-10-11 00:25:51,255 INFO L262 CegarLoopResult]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-10-11 00:25:51,255 INFO L258 CegarLoopResult]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse3 (= ~a19~0 1)) (.cse1 (= ~a25~0 0)) (.cse6 (<= ~a28~0 7)) (.cse7 (<= ~a11~0 0)) (.cse0 (<= ~a19~0 0)) (.cse5 (= ~a25~0 1)) (.cse4 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and .cse0 .cse1 (<= ~a17~0 7) .cse2) (and (<= 9 ~a28~0) .cse3 .cse4 .cse2) (and .cse3 .cse5 .cse6 .cse4) (and .cse7 .cse3 .cse5 .cse4) (and .cse0 (<= ~a28~0 9) .cse4) (and (= ~a25~0 ~a11~0) .cse3 .cse1 .cse6 .cse4) (and .cse7 .cse0 .cse5 .cse4 .cse2))) [2021-10-11 00:25:51,255 INFO L262 CegarLoopResult]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,255 INFO L262 CegarLoopResult]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,256 INFO L262 CegarLoopResult]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-10-11 00:25:51,256 INFO L262 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2021-10-11 00:25:51,256 INFO L262 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2021-10-11 00:25:51,256 INFO L262 CegarLoopResult]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-10-11 00:25:51,256 INFO L262 CegarLoopResult]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-10-11 00:25:51,256 INFO L262 CegarLoopResult]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,256 INFO L262 CegarLoopResult]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,256 INFO L262 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2021-10-11 00:25:51,257 INFO L262 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2021-10-11 00:25:51,257 INFO L262 CegarLoopResult]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-10-11 00:25:51,257 INFO L262 CegarLoopResult]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-10-11 00:25:51,257 INFO L262 CegarLoopResult]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-10-11 00:25:51,257 INFO L262 CegarLoopResult]: For program point L621(line 621) no Hoare annotation was computed. [2021-10-11 00:25:51,257 INFO L262 CegarLoopResult]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-10-11 00:25:51,257 INFO L262 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-11 00:25:51,257 INFO L262 CegarLoopResult]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-10-11 00:25:51,258 INFO L262 CegarLoopResult]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,258 INFO L262 CegarLoopResult]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,258 INFO L262 CegarLoopResult]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-10-11 00:25:51,258 INFO L262 CegarLoopResult]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,258 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:25:51,258 INFO L262 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2021-10-11 00:25:51,258 INFO L262 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2021-10-11 00:25:51,258 INFO L262 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2021-10-11 00:25:51,259 INFO L262 CegarLoopResult]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-10-11 00:25:51,259 INFO L262 CegarLoopResult]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-10-11 00:25:51,259 INFO L262 CegarLoopResult]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-10-11 00:25:51,259 INFO L262 CegarLoopResult]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,259 INFO L262 CegarLoopResult]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,259 INFO L262 CegarLoopResult]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,259 INFO L262 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2021-10-11 00:25:51,259 INFO L262 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2021-10-11 00:25:51,260 INFO L262 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2021-10-11 00:25:51,260 INFO L262 CegarLoopResult]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-10-11 00:25:51,260 INFO L262 CegarLoopResult]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-10-11 00:25:51,260 INFO L262 CegarLoopResult]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,260 INFO L262 CegarLoopResult]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,260 INFO L262 CegarLoopResult]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-10-11 00:25:51,260 INFO L262 CegarLoopResult]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-10-11 00:25:51,260 INFO L262 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2021-10-11 00:25:51,261 INFO L262 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2021-10-11 00:25:51,261 INFO L262 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2021-10-11 00:25:51,261 INFO L262 CegarLoopResult]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-10-11 00:25:51,261 INFO L262 CegarLoopResult]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-10-11 00:25:51,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:25:51 BoogieIcfgContainer [2021-10-11 00:25:51,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:25:51,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:25:51,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:25:51,285 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:25:51,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:36" (3/4) ... [2021-10-11 00:25:51,289 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:25:51,312 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:25:51,314 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:25:51,315 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:25:51,317 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:25:51,512 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d8ac24-9678-486f-aabe-5cd9d834d7cf/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:25:51,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:25:51,514 INFO L168 Benchmark]: Toolchain (without parser) took 17444.12 ms. Allocated memory was 94.4 MB in the beginning and 379.6 MB in the end (delta: 285.2 MB). Free memory was 50.3 MB in the beginning and 245.2 MB in the end (delta: -195.0 MB). Peak memory consumption was 92.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:51,514 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 94.4 MB. Free memory is still 68.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:25:51,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 583.32 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 50.0 MB in the beginning and 82.1 MB in the end (delta: -32.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:51,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.16 ms. Allocated memory is still 123.7 MB. Free memory was 82.1 MB in the beginning and 75.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:51,516 INFO L168 Benchmark]: Boogie Preprocessor took 96.05 ms. Allocated memory is still 123.7 MB. Free memory was 75.9 MB in the beginning and 71.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:51,516 INFO L168 Benchmark]: RCFGBuilder took 1453.04 ms. Allocated memory is still 123.7 MB. Free memory was 71.6 MB in the beginning and 58.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:51,516 INFO L168 Benchmark]: TraceAbstraction took 14962.07 ms. Allocated memory was 123.7 MB in the beginning and 379.6 MB in the end (delta: 255.9 MB). Free memory was 58.1 MB in the beginning and 259.9 MB in the end (delta: -201.8 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:51,517 INFO L168 Benchmark]: Witness Printer took 227.80 ms. Allocated memory is still 379.6 MB. Free memory was 259.9 MB in the beginning and 245.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:51,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 94.4 MB. Free memory is still 68.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 583.32 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 50.0 MB in the beginning and 82.1 MB in the end (delta: -32.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.16 ms. Allocated memory is still 123.7 MB. Free memory was 82.1 MB in the beginning and 75.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.05 ms. Allocated memory is still 123.7 MB. Free memory was 75.9 MB in the beginning and 71.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1453.04 ms. Allocated memory is still 123.7 MB. Free memory was 71.6 MB in the beginning and 58.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14962.07 ms. Allocated memory was 123.7 MB in the beginning and 379.6 MB in the end (delta: 255.9 MB). Free memory was 58.1 MB in the beginning and 259.9 MB in the end (delta: -201.8 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. * Witness Printer took 227.80 ms. Allocated memory is still 379.6 MB. Free memory was 259.9 MB in the beginning and 245.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 503]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: ((((((((a19 <= 0 && a25 == 0) && a17 <= 7) && a28 <= 10) || (((9 <= a28 && a19 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || (((a11 <= 0 && a19 == 1) && a25 == 1) && a17 <= 8)) || ((a19 <= 0 && a28 <= 9) && a17 <= 8)) || ((((a25 == a11 && a19 == 1) && a25 == 0) && a28 <= 7) && a17 <= 8)) || ((((a11 <= 0 && a19 <= 0) && a25 == 1) && a17 <= 8) && a28 <= 10) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((a19 <= 0 && a25 == 0) && a17 <= 7) && a28 <= 10) || (((9 <= a28 && a19 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || (((a11 <= 0 && a19 == 1) && a25 == 1) && a17 <= 8)) || ((a19 <= 0 && a28 <= 9) && a17 <= 8)) || ((((a25 == a11 && a19 == 1) && a25 == 0) && a28 <= 7) && a17 <= 8)) || ((((a11 <= 0 && a19 <= 0) && a25 == 1) && a17 <= 8) && a28 <= 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.4s, OverallIterations: 12, TraceHistogramMax: 7, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1381 SDtfs, 1451 SDslu, 166 SDs, 0 SdLazy, 4206 SolverSat, 697 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1053 GetRequests, 1026 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4395occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 1141 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 57 NumberOfFragments, 191 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1326 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 162 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 2758 NumberOfCodeBlocks, 2758 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2739 ConstructedInterpolants, 0 QuantifiedInterpolants, 761678 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2188 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 1229/1260 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...