./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label34.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label34.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be --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 734ea858638864cf111875fb6688bf68ceb15644fd98461d3cd9d71a49a35f2c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:56:12,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:56:12,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:56:12,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:56:12,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:56:12,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:56:12,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:56:12,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:56:12,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:56:12,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:56:12,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:56:12,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:56:12,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:56:12,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:56:12,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:56:12,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:56:12,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:56:12,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:56:12,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:56:12,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:56:12,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:56:12,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:56:12,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:56:12,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:56:12,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:56:12,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:56:12,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:56:12,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:56:12,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:56:12,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:56:12,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:56:12,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:56:12,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:56:12,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:56:12,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:56:12,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:56:12,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:56:12,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:56:12,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:56:12,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:56:12,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:56:12,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:56:12,654 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:56:12,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:56:12,655 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:56:12,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:56:12,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:56:12,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:56:12,658 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:56:12,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:56:12,659 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:56:12,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:56:12,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:56:12,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:56:12,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:56:12,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:56:12,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:56:12,661 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:56:12,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:56:12,662 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:56:12,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:56:12,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:56:12,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:56:12,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:56:12,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:56:12,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:56:12,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:56:12,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:56:12,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:56:12,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:56:12,665 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:56:12,665 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:56:12,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:56:12,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:56:12,665 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_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 734ea858638864cf111875fb6688bf68ceb15644fd98461d3cd9d71a49a35f2c [2021-10-21 19:56:12,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:56:12,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:56:12,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:56:12,979 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:56:12,980 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:56:12,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/eca-rers2012/Problem01_label34.c [2021-10-21 19:56:13,041 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/data/27b13291d/db72bcd2203a48b3b4ffad73711dc45b/FLAGbf886e979 [2021-10-21 19:56:13,604 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:56:13,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/sv-benchmarks/c/eca-rers2012/Problem01_label34.c [2021-10-21 19:56:13,619 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/data/27b13291d/db72bcd2203a48b3b4ffad73711dc45b/FLAGbf886e979 [2021-10-21 19:56:14,051 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/data/27b13291d/db72bcd2203a48b3b4ffad73711dc45b [2021-10-21 19:56:14,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:56:14,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:56:14,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:56:14,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:56:14,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:56:14,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:56:14" (1/1) ... [2021-10-21 19:56:14,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@84dc766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14, skipping insertion in model container [2021-10-21 19:56:14,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:56:14" (1/1) ... [2021-10-21 19:56:14,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:56:14,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:56:14,445 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/sv-benchmarks/c/eca-rers2012/Problem01_label34.c[18605,18618] [2021-10-21 19:56:14,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:56:14,517 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:56:14,670 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/sv-benchmarks/c/eca-rers2012/Problem01_label34.c[18605,18618] [2021-10-21 19:56:14,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:56:14,710 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:56:14,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14 WrapperNode [2021-10-21 19:56:14,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:56:14,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:56:14,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:56:14,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:56:14,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14" (1/1) ... [2021-10-21 19:56:14,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14" (1/1) ... [2021-10-21 19:56:14,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:56:14,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:56:14,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:56:14,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:56:14,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14" (1/1) ... [2021-10-21 19:56:14,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14" (1/1) ... [2021-10-21 19:56:14,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14" (1/1) ... [2021-10-21 19:56:14,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14" (1/1) ... [2021-10-21 19:56:14,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14" (1/1) ... [2021-10-21 19:56:14,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14" (1/1) ... [2021-10-21 19:56:14,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14" (1/1) ... [2021-10-21 19:56:14,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:56:14,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:56:14,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:56:14,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:56:14,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14" (1/1) ... [2021-10-21 19:56:14,918 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:56:14,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:14,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:14,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:56:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:56:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:56:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:56:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:56:16,217 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:56:16,217 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:56:16,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:56:16 BoogieIcfgContainer [2021-10-21 19:56:16,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:56:16,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:56:16,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:56:16,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:56:16,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:56:14" (1/3) ... [2021-10-21 19:56:16,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450c00be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:56:16, skipping insertion in model container [2021-10-21 19:56:16,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:14" (2/3) ... [2021-10-21 19:56:16,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450c00be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:56:16, skipping insertion in model container [2021-10-21 19:56:16,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:56:16" (3/3) ... [2021-10-21 19:56:16,230 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label34.c [2021-10-21 19:56:16,235 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:56:16,236 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:56:16,309 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:56:16,317 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:56:16,317 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:56:16,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:16,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-21 19:56:16,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:56:16,350 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:16,351 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:56:16,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:16,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1487053686, now seen corresponding path program 1 times [2021-10-21 19:56:16,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:16,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117802444] [2021-10-21 19:56:16,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:16,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:16,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:16,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:56:16,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117802444] [2021-10-21 19:56:16,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117802444] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:56:16,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:56:16,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:56:16,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796319082] [2021-10-21 19:56:16,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:56:16,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:56:16,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:56:16,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:16,835 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:17,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:56:17,623 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-10-21 19:56:17,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:56:17,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-10-21 19:56:17,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:56:17,648 INFO L225 Difference]: With dead ends: 528 [2021-10-21 19:56:17,648 INFO L226 Difference]: Without dead ends: 266 [2021-10-21 19:56:17,656 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:17,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-21 19:56:17,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-10-21 19:56:17,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.411320754716981) internal successors, (374), 265 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:17,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 374 transitions. [2021-10-21 19:56:17,728 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 374 transitions. Word has length 105 [2021-10-21 19:56:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:56:17,729 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 374 transitions. [2021-10-21 19:56:17,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:17,729 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 374 transitions. [2021-10-21 19:56:17,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-10-21 19:56:17,732 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:56:17,733 INFO L512 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] [2021-10-21 19:56:17,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:56:17,733 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:56:17,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:17,734 INFO L82 PathProgramCache]: Analyzing trace with hash -944739266, now seen corresponding path program 1 times [2021-10-21 19:56:17,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:17,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393512318] [2021-10-21 19:56:17,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:17,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-21 19:56:17,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:56:17,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393512318] [2021-10-21 19:56:17,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393512318] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:56:17,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:56:17,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:56:17,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135968306] [2021-10-21 19:56:17,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:56:17,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:56:17,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:56:17,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:17,905 INFO L87 Difference]: Start difference. First operand 266 states and 374 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:18,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:56:18,357 INFO L93 Difference]: Finished difference Result 792 states and 1117 transitions. [2021-10-21 19:56:18,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:56:18,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-10-21 19:56:18,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:56:18,366 INFO L225 Difference]: With dead ends: 792 [2021-10-21 19:56:18,366 INFO L226 Difference]: Without dead ends: 528 [2021-10-21 19:56:18,379 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:18,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-10-21 19:56:18,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-10-21 19:56:18,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.366223908918406) internal successors, (720), 527 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:18,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 720 transitions. [2021-10-21 19:56:18,418 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 720 transitions. Word has length 109 [2021-10-21 19:56:18,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:56:18,419 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 720 transitions. [2021-10-21 19:56:18,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:18,419 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 720 transitions. [2021-10-21 19:56:18,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-10-21 19:56:18,432 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:56:18,433 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-21 19:56:18,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:56:18,433 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:56:18,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:18,434 INFO L82 PathProgramCache]: Analyzing trace with hash 2090027166, now seen corresponding path program 1 times [2021-10-21 19:56:18,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:18,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104383630] [2021-10-21 19:56:18,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:18,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:18,526 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:18,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:56:18,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104383630] [2021-10-21 19:56:18,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104383630] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:56:18,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:56:18,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:56:18,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311647167] [2021-10-21 19:56:18,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:56:18,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:56:18,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:56:18,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:18,529 INFO L87 Difference]: Start difference. First operand 528 states and 720 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:18,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:56:18,988 INFO L93 Difference]: Finished difference Result 1447 states and 1957 transitions. [2021-10-21 19:56:18,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:56:18,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-10-21 19:56:18,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:56:18,994 INFO L225 Difference]: With dead ends: 1447 [2021-10-21 19:56:18,994 INFO L226 Difference]: Without dead ends: 921 [2021-10-21 19:56:18,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:18,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-10-21 19:56:19,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2021-10-21 19:56:19,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.2684782608695653) internal successors, (1167), 920 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:19,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1167 transitions. [2021-10-21 19:56:19,031 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1167 transitions. Word has length 110 [2021-10-21 19:56:19,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:56:19,031 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1167 transitions. [2021-10-21 19:56:19,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1167 transitions. [2021-10-21 19:56:19,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-21 19:56:19,034 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:56:19,035 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-10-21 19:56:19,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:56:19,035 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:56:19,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:19,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1644450848, now seen corresponding path program 1 times [2021-10-21 19:56:19,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:19,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394280805] [2021-10-21 19:56:19,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:19,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:19,088 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:19,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:56:19,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394280805] [2021-10-21 19:56:19,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394280805] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:56:19,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:56:19,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:56:19,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014227981] [2021-10-21 19:56:19,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:56:19,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:56:19,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:56:19,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:19,091 INFO L87 Difference]: Start difference. First operand 921 states and 1167 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:19,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:56:19,598 INFO L93 Difference]: Finished difference Result 2495 states and 3150 transitions. [2021-10-21 19:56:19,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:56:19,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-10-21 19:56:19,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:56:19,608 INFO L225 Difference]: With dead ends: 2495 [2021-10-21 19:56:19,609 INFO L226 Difference]: Without dead ends: 1576 [2021-10-21 19:56:19,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:19,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-10-21 19:56:19,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1183. [2021-10-21 19:56:19,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.2597292724196278) internal successors, (1489), 1182 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:19,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1489 transitions. [2021-10-21 19:56:19,657 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1489 transitions. Word has length 118 [2021-10-21 19:56:19,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:56:19,657 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1489 transitions. [2021-10-21 19:56:19,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:19,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1489 transitions. [2021-10-21 19:56:19,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-10-21 19:56:19,661 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:56:19,662 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-10-21 19:56:19,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:56:19,662 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:56:19,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:19,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1047311641, now seen corresponding path program 1 times [2021-10-21 19:56:19,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:19,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700419503] [2021-10-21 19:56:19,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:19,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:19,714 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-21 19:56:19,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:56:19,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700419503] [2021-10-21 19:56:19,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700419503] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:56:19,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:56:19,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:56:19,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693967075] [2021-10-21 19:56:19,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:56:19,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:56:19,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:56:19,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:19,718 INFO L87 Difference]: Start difference. First operand 1183 states and 1489 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:20,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:56:20,125 INFO L93 Difference]: Finished difference Result 2364 states and 2976 transitions. [2021-10-21 19:56:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:56:20,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-10-21 19:56:20,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:56:20,132 INFO L225 Difference]: With dead ends: 2364 [2021-10-21 19:56:20,132 INFO L226 Difference]: Without dead ends: 1183 [2021-10-21 19:56:20,133 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:20,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-10-21 19:56:20,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2021-10-21 19:56:20,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.2495769881556684) internal successors, (1477), 1182 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1477 transitions. [2021-10-21 19:56:20,172 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1477 transitions. Word has length 121 [2021-10-21 19:56:20,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:56:20,172 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1477 transitions. [2021-10-21 19:56:20,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:20,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1477 transitions. [2021-10-21 19:56:20,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-10-21 19:56:20,175 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:56:20,176 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2021-10-21 19:56:20,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:56:20,176 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:56:20,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:20,177 INFO L82 PathProgramCache]: Analyzing trace with hash 818316207, now seen corresponding path program 1 times [2021-10-21 19:56:20,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:20,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837137099] [2021-10-21 19:56:20,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:20,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:20,268 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-21 19:56:20,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:56:20,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837137099] [2021-10-21 19:56:20,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837137099] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:56:20,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256611195] [2021-10-21 19:56:20,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:20,269 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:56:20,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:20,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:56:20,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:56:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:20,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:56:20,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:20,788 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-21 19:56:20,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256611195] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:56:20,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:56:20,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-21 19:56:20,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511000932] [2021-10-21 19:56:20,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:56:20,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:56:20,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:56:20,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:56:20,803 INFO L87 Difference]: Start difference. First operand 1183 states and 1477 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:21,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:56:21,223 INFO L93 Difference]: Finished difference Result 1971 states and 2439 transitions. [2021-10-21 19:56:21,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:56:21,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-10-21 19:56:21,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:56:21,236 INFO L225 Difference]: With dead ends: 1971 [2021-10-21 19:56:21,237 INFO L226 Difference]: Without dead ends: 1969 [2021-10-21 19:56:21,237 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.6ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:56:21,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2021-10-21 19:56:21,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1969. [2021-10-21 19:56:21,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.2383130081300813) internal successors, (2437), 1968 states have internal predecessors, (2437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:21,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2437 transitions. [2021-10-21 19:56:21,291 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2437 transitions. Word has length 125 [2021-10-21 19:56:21,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:56:21,293 INFO L470 AbstractCegarLoop]: Abstraction has 1969 states and 2437 transitions. [2021-10-21 19:56:21,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:21,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2437 transitions. [2021-10-21 19:56:21,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-10-21 19:56:21,299 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:56:21,299 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:21,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:21,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-21 19:56:21,513 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:56:21,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:21,514 INFO L82 PathProgramCache]: Analyzing trace with hash 284102731, now seen corresponding path program 1 times [2021-10-21 19:56:21,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:21,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292094986] [2021-10-21 19:56:21,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:21,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:21,594 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-21 19:56:21,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:56:21,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292094986] [2021-10-21 19:56:21,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292094986] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:56:21,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:56:21,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:56:21,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558975772] [2021-10-21 19:56:21,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:56:21,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:56:21,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:56:21,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:21,598 INFO L87 Difference]: Start difference. First operand 1969 states and 2437 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:22,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:56:22,023 INFO L93 Difference]: Finished difference Result 3541 states and 4375 transitions. [2021-10-21 19:56:22,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:56:22,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2021-10-21 19:56:22,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:56:22,024 INFO L225 Difference]: With dead ends: 3541 [2021-10-21 19:56:22,024 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:56:22,027 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:22,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:56:22,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:56:22,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:22,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:56:22,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 183 [2021-10-21 19:56:22,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:56:22,029 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:56:22,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:22,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:56:22,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:56:22,032 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:56:22,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 19:56:22,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:56:22,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:56:22,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:56:22,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:56:22,093 INFO L857 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-10-21 19:56:22,093 INFO L857 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-10-21 19:56:22,093 INFO L857 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-10-21 19:56:22,093 INFO L857 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-10-21 19:56:22,094 INFO L857 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-10-21 19:56:22,094 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-10-21 19:56:22,094 INFO L857 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-10-21 19:56:22,094 INFO L857 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-10-21 19:56:22,094 INFO L857 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,095 INFO L857 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,095 INFO L857 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,095 INFO L857 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,095 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-10-21 19:56:22,095 INFO L857 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,095 INFO L857 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,095 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-10-21 19:56:22,096 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-10-21 19:56:22,096 INFO L857 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-10-21 19:56:22,096 INFO L857 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-10-21 19:56:22,096 INFO L857 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-10-21 19:56:22,096 INFO L857 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-10-21 19:56:22,096 INFO L857 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-10-21 19:56:22,097 INFO L857 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-10-21 19:56:22,097 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-10-21 19:56:22,097 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-10-21 19:56:22,097 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-10-21 19:56:22,097 INFO L857 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-10-21 19:56:22,097 INFO L857 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,098 INFO L857 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,098 INFO L857 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,098 INFO L857 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,098 INFO L857 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,098 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-10-21 19:56:22,098 INFO L857 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,099 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-10-21 19:56:22,099 INFO L857 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-10-21 19:56:22,099 INFO L857 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-10-21 19:56:22,099 INFO L857 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-10-21 19:56:22,099 INFO L857 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-10-21 19:56:22,099 INFO L857 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-10-21 19:56:22,100 INFO L857 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-10-21 19:56:22,100 INFO L857 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-10-21 19:56:22,100 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-10-21 19:56:22,100 INFO L857 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-10-21 19:56:22,100 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-10-21 19:56:22,100 INFO L857 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-10-21 19:56:22,101 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-10-21 19:56:22,101 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-10-21 19:56:22,101 INFO L857 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,101 INFO L857 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,101 INFO L857 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,101 INFO L857 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,102 INFO L857 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,102 INFO L857 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,102 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-10-21 19:56:22,102 INFO L857 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-10-21 19:56:22,102 INFO L857 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-10-21 19:56:22,102 INFO L857 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-10-21 19:56:22,103 INFO L857 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-10-21 19:56:22,103 INFO L857 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-10-21 19:56:22,103 INFO L857 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-10-21 19:56:22,103 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-10-21 19:56:22,103 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-10-21 19:56:22,103 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-10-21 19:56:22,104 INFO L857 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-10-21 19:56:22,104 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-10-21 19:56:22,104 INFO L857 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,104 INFO L857 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,104 INFO L857 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,104 INFO L857 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,105 INFO L857 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,105 INFO L857 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,105 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-10-21 19:56:22,105 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-10-21 19:56:22,105 INFO L857 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-10-21 19:56:22,105 INFO L857 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-10-21 19:56:22,105 INFO L857 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-10-21 19:56:22,106 INFO L857 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-10-21 19:56:22,106 INFO L857 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-10-21 19:56:22,106 INFO L857 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-10-21 19:56:22,106 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-10-21 19:56:22,106 INFO L857 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-10-21 19:56:22,107 INFO L857 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,107 INFO L857 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,107 INFO L857 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,107 INFO L857 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,107 INFO L857 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,107 INFO L857 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,107 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-10-21 19:56:22,108 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-10-21 19:56:22,108 INFO L857 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-10-21 19:56:22,108 INFO L857 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-10-21 19:56:22,108 INFO L857 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-10-21 19:56:22,108 INFO L857 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-10-21 19:56:22,108 INFO L857 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-10-21 19:56:22,109 INFO L857 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-10-21 19:56:22,109 INFO L857 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-10-21 19:56:22,109 INFO L857 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-10-21 19:56:22,109 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-10-21 19:56:22,109 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-10-21 19:56:22,109 INFO L857 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-10-21 19:56:22,110 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-10-21 19:56:22,110 INFO L857 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-10-21 19:56:22,110 INFO L857 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,110 INFO L857 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,110 INFO L857 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,110 INFO L857 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,111 INFO L857 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,111 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:56:22,111 INFO L857 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-10-21 19:56:22,111 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-10-21 19:56:22,111 INFO L857 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-10-21 19:56:22,111 INFO L857 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-10-21 19:56:22,112 INFO L857 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-10-21 19:56:22,112 INFO L857 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-10-21 19:56:22,112 INFO L857 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-10-21 19:56:22,112 INFO L857 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-10-21 19:56:22,112 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-10-21 19:56:22,113 INFO L853 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (= ~a7~0 1)) (.cse2 (<= ~a16~0 5)) (.cse1 (= ~a21~0 1))) (or (and .cse0 (= ~a20~0 1)) (and .cse1 .cse0 .cse2) (and (= ~a17~0 1) .cse0 .cse2) (and (<= ~a7~0 0) .cse1))) [2021-10-21 19:56:22,113 INFO L857 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,113 INFO L857 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,113 INFO L857 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,113 INFO L857 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,113 INFO L857 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,114 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-10-21 19:56:22,114 INFO L857 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-10-21 19:56:22,114 INFO L857 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-10-21 19:56:22,114 INFO L857 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-10-21 19:56:22,114 INFO L857 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-10-21 19:56:22,114 INFO L857 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-10-21 19:56:22,115 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-10-21 19:56:22,115 INFO L857 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-10-21 19:56:22,115 INFO L857 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-10-21 19:56:22,115 INFO L857 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-10-21 19:56:22,115 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-10-21 19:56:22,115 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-10-21 19:56:22,116 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:56:22,116 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-10-21 19:56:22,116 INFO L860 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-10-21 19:56:22,116 INFO L857 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,116 INFO L857 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,116 INFO L857 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,117 INFO L857 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,117 INFO L857 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,117 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-10-21 19:56:22,117 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-10-21 19:56:22,117 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-10-21 19:56:22,117 INFO L857 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-10-21 19:56:22,117 INFO L857 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-10-21 19:56:22,118 INFO L857 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-10-21 19:56:22,118 INFO L857 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-10-21 19:56:22,118 INFO L857 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-10-21 19:56:22,118 INFO L857 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-10-21 19:56:22,118 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:56:22,118 INFO L857 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,118 INFO L857 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,118 INFO L857 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,118 INFO L857 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,119 INFO L857 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-10-21 19:56:22,119 INFO L857 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,119 INFO L857 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-10-21 19:56:22,119 INFO L857 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-10-21 19:56:22,119 INFO L857 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-10-21 19:56:22,119 INFO L857 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-10-21 19:56:22,119 INFO L857 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-10-21 19:56:22,119 INFO L857 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-10-21 19:56:22,119 INFO L857 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-10-21 19:56:22,119 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-10-21 19:56:22,119 INFO L857 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-10-21 19:56:22,120 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-10-21 19:56:22,120 INFO L857 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-10-21 19:56:22,120 INFO L857 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-10-21 19:56:22,120 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-10-21 19:56:22,120 INFO L857 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,120 INFO L853 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (= ~a7~0 1)) (.cse2 (<= ~a16~0 5)) (.cse1 (= ~a21~0 1))) (or (and .cse0 (= ~a20~0 1)) (and .cse1 .cse0 .cse2) (and (= ~a17~0 1) .cse0 .cse2) (and (<= ~a7~0 0) .cse1))) [2021-10-21 19:56:22,122 INFO L857 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,122 INFO L857 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,122 INFO L857 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,122 INFO L857 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,122 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-10-21 19:56:22,123 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:56:22,123 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 501) no Hoare annotation was computed. [2021-10-21 19:56:22,123 INFO L857 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-10-21 19:56:22,123 INFO L857 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-10-21 19:56:22,123 INFO L857 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-10-21 19:56:22,123 INFO L857 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-10-21 19:56:22,125 INFO L857 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-10-21 19:56:22,126 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-10-21 19:56:22,126 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-10-21 19:56:22,126 INFO L857 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,126 INFO L857 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,126 INFO L857 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,126 INFO L857 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,127 INFO L857 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-10-21 19:56:22,127 INFO L857 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-10-21 19:56:22,127 INFO L857 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-10-21 19:56:22,127 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-10-21 19:56:22,127 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-10-21 19:56:22,135 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:56:22,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:56:22 BoogieIcfgContainer [2021-10-21 19:56:22,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:56:22,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:56:22,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:56:22,153 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:56:22,153 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:56:16" (3/4) ... [2021-10-21 19:56:22,156 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:56:22,178 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 19:56:22,179 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:56:22,180 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:56:22,182 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:56:22,307 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:56:22,307 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:56:22,309 INFO L168 Benchmark]: Toolchain (without parser) took 8253.13 ms. Allocated memory was 96.5 MB in the beginning and 184.5 MB in the end (delta: 88.1 MB). Free memory was 55.9 MB in the beginning and 94.0 MB in the end (delta: -38.1 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:22,309 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 74.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:56:22,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.30 ms. Allocated memory is still 96.5 MB. Free memory was 55.7 MB in the beginning and 54.9 MB in the end (delta: 771.7 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:22,312 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.54 ms. Allocated memory is still 96.5 MB. Free memory was 54.9 MB in the beginning and 49.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:22,312 INFO L168 Benchmark]: Boogie Preprocessor took 97.82 ms. Allocated memory is still 96.5 MB. Free memory was 49.1 MB in the beginning and 44.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:22,313 INFO L168 Benchmark]: RCFGBuilder took 1324.20 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 44.9 MB in the beginning and 59.7 MB in the end (delta: -14.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:22,313 INFO L168 Benchmark]: TraceAbstraction took 5930.20 ms. Allocated memory was 134.2 MB in the beginning and 184.5 MB in the end (delta: 50.3 MB). Free memory was 59.1 MB in the beginning and 108.7 MB in the end (delta: -49.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:56:22,313 INFO L168 Benchmark]: Witness Printer took 154.88 ms. Allocated memory is still 184.5 MB. Free memory was 108.7 MB in the beginning and 94.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:22,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 74.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 652.30 ms. Allocated memory is still 96.5 MB. Free memory was 55.7 MB in the beginning and 54.9 MB in the end (delta: 771.7 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.54 ms. Allocated memory is still 96.5 MB. Free memory was 54.9 MB in the beginning and 49.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.82 ms. Allocated memory is still 96.5 MB. Free memory was 49.1 MB in the beginning and 44.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1324.20 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 44.9 MB in the beginning and 59.7 MB in the end (delta: -14.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5930.20 ms. Allocated memory was 134.2 MB in the beginning and 184.5 MB in the end (delta: 50.3 MB). Free memory was 59.1 MB in the beginning and 108.7 MB in the end (delta: -49.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 154.88 ms. Allocated memory is still 184.5 MB. Free memory was 108.7 MB in the beginning and 94.0 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: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 501]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5827.2ms, OverallIterations: 7, TraceHistogramMax: 5, EmptinessCheckTime: 45.9ms, AutomataDifference: 3596.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 59.7ms, InitialAbstractionConstructionTime: 16.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 410 SDtfs, 738 SDslu, 37 SDs, 0 SdLazy, 2335 SolverSat, 468 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2462.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1969occurred in iteration=6, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 266.0ms AutomataMinimizationTime, 7 MinimizatonAttempts, 393 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 29 NumberOfFragments, 71 HoareAnnotationTreeSize, 3 FomulaSimplifications, 356 FormulaSimplificationTreeSizeReduction, 18.7ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 33.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 119.4ms SsaConstructionTime, 291.2ms SatisfiabilityAnalysisTime, 930.1ms InterpolantComputationTime, 996 NumberOfCodeBlocks, 996 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 988 ConstructedInterpolants, 0 QuantifiedInterpolants, 1839 SizeOfPredicates, 0 NumberOfNonLiveVariables, 304 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 226/229 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((a7 == 1 && a20 == 1) || ((a21 == 1 && a7 == 1) && a16 <= 5)) || ((a17 == 1 && a7 == 1) && a16 <= 5)) || (a7 <= 0 && a21 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((a7 == 1 && a20 == 1) || ((a21 == 1 && a7 == 1) && a16 <= 5)) || ((a17 == 1 && a7 == 1) && a16 <= 5)) || (a7 <= 0 && a21 == 1) RESULT: Ultimate proved your program to be correct! [2021-10-21 19:56:22,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beaacef0-2631-4847-8bef-297d1268cc0d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...