./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label44.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label44.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt --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 e00c90c179b1d28da1ba54b907e99f33c2ce0217 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:40:20,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:40:20,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:40:20,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:40:20,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:40:20,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:40:20,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:40:20,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:40:20,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:40:20,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:40:20,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:40:20,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:40:20,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:40:20,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:40:20,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:40:20,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:40:20,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:40:20,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:40:20,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:40:20,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:40:20,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:40:20,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:40:20,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:40:20,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:40:20,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:40:20,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:40:20,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:40:20,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:40:20,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:40:20,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:40:20,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:40:20,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:40:20,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:40:20,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:40:20,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:40:20,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:40:20,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:40:20,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:40:20,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:40:20,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:40:20,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:40:20,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:40:20,687 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:40:20,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:40:20,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:40:20,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:40:20,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:40:20,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:40:20,690 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:40:20,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:40:20,691 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:40:20,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:40:20,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:40:20,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:40:20,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:40:20,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:40:20,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:40:20,692 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:40:20,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:40:20,693 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:40:20,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:40:20,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:40:20,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:40:20,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:40:20,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:40:20,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:40:20,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:40:20,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:40:20,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:40:20,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:40:20,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:40:20,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:40:20,696 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_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e00c90c179b1d28da1ba54b907e99f33c2ce0217 [2021-10-13 00:40:20,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:40:20,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:40:20,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:40:20,946 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:40:20,947 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:40:20,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/eca-rers2012/Problem10_label44.c [2021-10-13 00:40:21,005 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/data/6723239a3/5d950b49d5a14f4b963cb8f87e3380fd/FLAGbcba336db [2021-10-13 00:40:21,539 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:40:21,539 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/sv-benchmarks/c/eca-rers2012/Problem10_label44.c [2021-10-13 00:40:21,553 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/data/6723239a3/5d950b49d5a14f4b963cb8f87e3380fd/FLAGbcba336db [2021-10-13 00:40:21,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/data/6723239a3/5d950b49d5a14f4b963cb8f87e3380fd [2021-10-13 00:40:21,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:40:21,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:40:21,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:40:21,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:40:21,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:40:21,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:40:21" (1/1) ... [2021-10-13 00:40:21,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e607f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:21, skipping insertion in model container [2021-10-13 00:40:21,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:40:21" (1/1) ... [2021-10-13 00:40:21,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:40:21,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:40:22,165 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_1dc852aa-0b22-46e1-b6cc-8934faf27948/sv-benchmarks/c/eca-rers2012/Problem10_label44.c[6569,6582] [2021-10-13 00:40:22,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:40:22,310 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:40:22,348 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_1dc852aa-0b22-46e1-b6cc-8934faf27948/sv-benchmarks/c/eca-rers2012/Problem10_label44.c[6569,6582] [2021-10-13 00:40:22,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:40:22,444 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:40:22,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:22 WrapperNode [2021-10-13 00:40:22,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:40:22,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:40:22,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:40:22,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:40:22,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:22" (1/1) ... [2021-10-13 00:40:22,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:22" (1/1) ... [2021-10-13 00:40:22,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:40:22,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:40:22,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:40:22,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:40:22,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:22" (1/1) ... [2021-10-13 00:40:22,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:22" (1/1) ... [2021-10-13 00:40:22,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:22" (1/1) ... [2021-10-13 00:40:22,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:22" (1/1) ... [2021-10-13 00:40:22,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:22" (1/1) ... [2021-10-13 00:40:22,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:22" (1/1) ... [2021-10-13 00:40:22,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:22" (1/1) ... [2021-10-13 00:40:22,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:40:22,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:40:22,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:40:22,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:40:22,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:22" (1/1) ... [2021-10-13 00:40:22,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:40:22,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:40:22,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:40:22,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:40:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:40:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:40:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:40:22,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:40:23,846 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:40:23,846 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:40:23,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:40:23 BoogieIcfgContainer [2021-10-13 00:40:23,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:40:23,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:40:23,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:40:23,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:40:23,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:40:21" (1/3) ... [2021-10-13 00:40:23,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a1af30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:40:23, skipping insertion in model container [2021-10-13 00:40:23,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:22" (2/3) ... [2021-10-13 00:40:23,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a1af30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:40:23, skipping insertion in model container [2021-10-13 00:40:23,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:40:23" (3/3) ... [2021-10-13 00:40:23,861 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label44.c [2021-10-13 00:40:23,866 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:40:23,867 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:40:23,921 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:40:23,927 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:40:23,928 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:40:23,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:23,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-13 00:40:23,956 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:23,957 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] [2021-10-13 00:40:23,957 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:40:23,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:23,963 INFO L82 PathProgramCache]: Analyzing trace with hash -66916295, now seen corresponding path program 1 times [2021-10-13 00:40:23,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:23,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004527267] [2021-10-13 00:40:23,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:23,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:24,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:24,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:24,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004527267] [2021-10-13 00:40:24,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004527267] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:24,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:24,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:40:24,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753755447] [2021-10-13 00:40:24,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:40:24,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:24,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:40:24,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:24,312 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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) [2021-10-13 00:40:25,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:25,076 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2021-10-13 00:40:25,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:40:25,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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 57 [2021-10-13 00:40:25,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:25,091 INFO L225 Difference]: With dead ends: 552 [2021-10-13 00:40:25,091 INFO L226 Difference]: Without dead ends: 282 [2021-10-13 00:40:25,095 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:25,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-13 00:40:25,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-10-13 00:40:25,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.3416370106761566) internal successors, (377), 281 states have internal predecessors, (377), 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) [2021-10-13 00:40:25,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2021-10-13 00:40:25,146 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 57 [2021-10-13 00:40:25,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:25,147 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2021-10-13 00:40:25,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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) [2021-10-13 00:40:25,147 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2021-10-13 00:40:25,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-10-13 00:40:25,159 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:25,160 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:40:25,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:40:25,161 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:40:25,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:25,164 INFO L82 PathProgramCache]: Analyzing trace with hash -803354708, now seen corresponding path program 1 times [2021-10-13 00:40:25,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:25,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933221077] [2021-10-13 00:40:25,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:25,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:25,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:25,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933221077] [2021-10-13 00:40:25,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933221077] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:25,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:25,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:40:25,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724150396] [2021-10-13 00:40:25,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:40:25,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:25,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:40:25,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:25,407 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-10-13 00:40:25,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:25,953 INFO L93 Difference]: Finished difference Result 701 states and 967 transitions. [2021-10-13 00:40:25,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:40:25,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 123 [2021-10-13 00:40:25,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:25,958 INFO L225 Difference]: With dead ends: 701 [2021-10-13 00:40:25,958 INFO L226 Difference]: Without dead ends: 421 [2021-10-13 00:40:25,960 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:25,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-13 00:40:26,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-10-13 00:40:26,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.2523809523809524) internal successors, (526), 420 states have internal predecessors, (526), 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) [2021-10-13 00:40:26,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 526 transitions. [2021-10-13 00:40:26,005 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 526 transitions. Word has length 123 [2021-10-13 00:40:26,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:26,007 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 526 transitions. [2021-10-13 00:40:26,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-10-13 00:40:26,007 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 526 transitions. [2021-10-13 00:40:26,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-10-13 00:40:26,020 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:26,021 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:40:26,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:40:26,021 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:40:26,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:26,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1231336677, now seen corresponding path program 1 times [2021-10-13 00:40:26,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:26,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557624245] [2021-10-13 00:40:26,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:26,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:26,178 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:26,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:26,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557624245] [2021-10-13 00:40:26,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557624245] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:26,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:26,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:40:26,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472504739] [2021-10-13 00:40:26,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:40:26,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:26,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:40:26,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:26,189 INFO L87 Difference]: Start difference. First operand 421 states and 526 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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) [2021-10-13 00:40:26,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:26,667 INFO L93 Difference]: Finished difference Result 979 states and 1209 transitions. [2021-10-13 00:40:26,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:40:26,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 130 [2021-10-13 00:40:26,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:26,672 INFO L225 Difference]: With dead ends: 979 [2021-10-13 00:40:26,672 INFO L226 Difference]: Without dead ends: 560 [2021-10-13 00:40:26,674 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 [2021-10-13 00:40:26,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-13 00:40:26,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-10-13 00:40:26,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.2075134168157424) internal successors, (675), 559 states have internal predecessors, (675), 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) [2021-10-13 00:40:26,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 675 transitions. [2021-10-13 00:40:26,700 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 675 transitions. Word has length 130 [2021-10-13 00:40:26,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:26,700 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 675 transitions. [2021-10-13 00:40:26,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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) [2021-10-13 00:40:26,701 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 675 transitions. [2021-10-13 00:40:26,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-13 00:40:26,703 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:26,703 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:40:26,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:40:26,704 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:40:26,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:26,704 INFO L82 PathProgramCache]: Analyzing trace with hash 920423616, now seen corresponding path program 1 times [2021-10-13 00:40:26,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:26,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111865813] [2021-10-13 00:40:26,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:26,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:26,881 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:26,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:26,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111865813] [2021-10-13 00:40:26,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111865813] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:26,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:26,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:40:26,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581925583] [2021-10-13 00:40:26,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:40:26,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:26,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:40:26,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:40:26,884 INFO L87 Difference]: Start difference. First operand 560 states and 675 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2021-10-13 00:40:27,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:27,592 INFO L93 Difference]: Finished difference Result 1417 states and 1742 transitions. [2021-10-13 00:40:27,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:40:27,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 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 132 [2021-10-13 00:40:27,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:27,610 INFO L225 Difference]: With dead ends: 1417 [2021-10-13 00:40:27,611 INFO L226 Difference]: Without dead ends: 979 [2021-10-13 00:40:27,613 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:40:27,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2021-10-13 00:40:27,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 977. [2021-10-13 00:40:27,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.2243852459016393) internal successors, (1195), 976 states have internal predecessors, (1195), 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) [2021-10-13 00:40:27,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1195 transitions. [2021-10-13 00:40:27,642 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1195 transitions. Word has length 132 [2021-10-13 00:40:27,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:27,643 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1195 transitions. [2021-10-13 00:40:27,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2021-10-13 00:40:27,643 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1195 transitions. [2021-10-13 00:40:27,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-10-13 00:40:27,645 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:27,646 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:40:27,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:40:27,646 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:40:27,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:27,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1786628584, now seen corresponding path program 1 times [2021-10-13 00:40:27,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:27,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350638341] [2021-10-13 00:40:27,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:27,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:27,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:27,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350638341] [2021-10-13 00:40:27,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350638341] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:27,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:27,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:40:27,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210972101] [2021-10-13 00:40:27,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:40:27,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:27,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:40:27,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:27,716 INFO L87 Difference]: Start difference. First operand 977 states and 1195 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 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) [2021-10-13 00:40:28,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:28,232 INFO L93 Difference]: Finished difference Result 2230 states and 2828 transitions. [2021-10-13 00:40:28,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:40:28,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-10-13 00:40:28,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:28,240 INFO L225 Difference]: With dead ends: 2230 [2021-10-13 00:40:28,241 INFO L226 Difference]: Without dead ends: 1394 [2021-10-13 00:40:28,242 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:28,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-13 00:40:28,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-10-13 00:40:28,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.2261306532663316) internal successors, (1708), 1393 states have internal predecessors, (1708), 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) [2021-10-13 00:40:28,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1708 transitions. [2021-10-13 00:40:28,282 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1708 transitions. Word has length 148 [2021-10-13 00:40:28,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:28,283 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1708 transitions. [2021-10-13 00:40:28,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 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) [2021-10-13 00:40:28,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1708 transitions. [2021-10-13 00:40:28,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-10-13 00:40:28,287 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:28,287 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:40:28,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:40:28,288 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:40:28,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:28,288 INFO L82 PathProgramCache]: Analyzing trace with hash 493047386, now seen corresponding path program 1 times [2021-10-13 00:40:28,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:28,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131473057] [2021-10-13 00:40:28,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:28,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-13 00:40:28,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:28,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131473057] [2021-10-13 00:40:28,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131473057] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:28,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176682400] [2021-10-13 00:40:28,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:28,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:28,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:40:28,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:40:28,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:40:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:28,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:40:28,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:40:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 00:40:29,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176682400] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:29,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:40:29,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-13 00:40:29,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092231897] [2021-10-13 00:40:29,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:40:29,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:29,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:40:29,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:40:29,177 INFO L87 Difference]: Start difference. First operand 1394 states and 1708 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) [2021-10-13 00:40:29,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:29,651 INFO L93 Difference]: Finished difference Result 2230 states and 2683 transitions. [2021-10-13 00:40:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:40:29,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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 168 [2021-10-13 00:40:29,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:29,666 INFO L225 Difference]: With dead ends: 2230 [2021-10-13 00:40:29,666 INFO L226 Difference]: Without dead ends: 2228 [2021-10-13 00:40:29,667 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.6ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:40:29,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2021-10-13 00:40:29,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1672. [2021-10-13 00:40:29,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 1.24655894673848) internal successors, (2083), 1671 states have internal predecessors, (2083), 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) [2021-10-13 00:40:29,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2083 transitions. [2021-10-13 00:40:29,734 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2083 transitions. Word has length 168 [2021-10-13 00:40:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:29,735 INFO L470 AbstractCegarLoop]: Abstraction has 1672 states and 2083 transitions. [2021-10-13 00:40:29,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) [2021-10-13 00:40:29,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2083 transitions. [2021-10-13 00:40:29,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-10-13 00:40:29,740 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:29,740 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:29,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:40:29,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:29,964 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:40:29,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:29,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1329719851, now seen corresponding path program 1 times [2021-10-13 00:40:29,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:29,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890637645] [2021-10-13 00:40:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:29,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:30,096 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:30,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:30,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890637645] [2021-10-13 00:40:30,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890637645] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:30,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:30,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:40:30,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671488032] [2021-10-13 00:40:30,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:40:30,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:30,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:40:30,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:30,100 INFO L87 Difference]: Start difference. First operand 1672 states and 2083 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2021-10-13 00:40:30,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:30,605 INFO L93 Difference]: Finished difference Result 3759 states and 4777 transitions. [2021-10-13 00:40:30,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:40:30,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 246 [2021-10-13 00:40:30,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:30,618 INFO L225 Difference]: With dead ends: 3759 [2021-10-13 00:40:30,618 INFO L226 Difference]: Without dead ends: 2228 [2021-10-13 00:40:30,620 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 [2021-10-13 00:40:30,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2021-10-13 00:40:30,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1811. [2021-10-13 00:40:30,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.181767955801105) internal successors, (2139), 1810 states have internal predecessors, (2139), 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) [2021-10-13 00:40:30,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2139 transitions. [2021-10-13 00:40:30,671 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2139 transitions. Word has length 246 [2021-10-13 00:40:30,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:30,671 INFO L470 AbstractCegarLoop]: Abstraction has 1811 states and 2139 transitions. [2021-10-13 00:40:30,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2021-10-13 00:40:30,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2139 transitions. [2021-10-13 00:40:30,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-10-13 00:40:30,678 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:30,678 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:30,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:40:30,678 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:40:30,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:30,679 INFO L82 PathProgramCache]: Analyzing trace with hash 527075250, now seen corresponding path program 1 times [2021-10-13 00:40:30,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:30,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102473796] [2021-10-13 00:40:30,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:30,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 285 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:31,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:31,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102473796] [2021-10-13 00:40:31,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102473796] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:31,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613658985] [2021-10-13 00:40:31,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:31,006 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:31,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:40:31,010 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:40:31,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 00:40:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:31,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 00:40:31,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:40:33,518 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 125 proven. 179 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-13 00:40:33,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613658985] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:33,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:40:33,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-10-13 00:40:33,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872509028] [2021-10-13 00:40:33,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:40:33,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:33,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:40:33,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:40:33,522 INFO L87 Difference]: Start difference. First operand 1811 states and 2139 transitions. Second operand has 10 states, 10 states have (on average 49.5) internal successors, (495), 9 states have internal predecessors, (495), 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) [2021-10-13 00:40:36,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:36,969 INFO L93 Difference]: Finished difference Result 6882 states and 8068 transitions. [2021-10-13 00:40:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 00:40:36,969 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 49.5) internal successors, (495), 9 states have internal predecessors, (495), 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 280 [2021-10-13 00:40:36,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:36,994 INFO L225 Difference]: With dead ends: 6882 [2021-10-13 00:40:36,994 INFO L226 Difference]: Without dead ends: 5212 [2021-10-13 00:40:36,997 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 217.2ms TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2021-10-13 00:40:37,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2021-10-13 00:40:37,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 2784. [2021-10-13 00:40:37,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2783 states have (on average 1.1778656126482214) internal successors, (3278), 2783 states have internal predecessors, (3278), 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) [2021-10-13 00:40:37,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3278 transitions. [2021-10-13 00:40:37,084 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3278 transitions. Word has length 280 [2021-10-13 00:40:37,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:37,085 INFO L470 AbstractCegarLoop]: Abstraction has 2784 states and 3278 transitions. [2021-10-13 00:40:37,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 49.5) internal successors, (495), 9 states have internal predecessors, (495), 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) [2021-10-13 00:40:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3278 transitions. [2021-10-13 00:40:37,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-10-13 00:40:37,093 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:37,093 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 00:40:37,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:40:37,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-13 00:40:37,314 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:40:37,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:37,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1406584506, now seen corresponding path program 1 times [2021-10-13 00:40:37,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:37,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211762187] [2021-10-13 00:40:37,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:37,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:37,555 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 77 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:37,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:37,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211762187] [2021-10-13 00:40:37,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211762187] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:37,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335500493] [2021-10-13 00:40:37,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:37,557 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:37,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:40:37,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:40:37,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 00:40:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:38,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:40:38,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:40:38,699 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-10-13 00:40:38,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335500493] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:38,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:40:38,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-10-13 00:40:38,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878840211] [2021-10-13 00:40:38,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:40:38,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:38,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:40:38,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:40:38,702 INFO L87 Difference]: Start difference. First operand 2784 states and 3278 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2021-10-13 00:40:39,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:39,149 INFO L93 Difference]: Finished difference Result 5983 states and 7141 transitions. [2021-10-13 00:40:39,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:40:39,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 305 [2021-10-13 00:40:39,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:39,167 INFO L225 Difference]: With dead ends: 5983 [2021-10-13 00:40:39,167 INFO L226 Difference]: Without dead ends: 3340 [2021-10-13 00:40:39,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.8ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:40:39,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2021-10-13 00:40:39,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 2784. [2021-10-13 00:40:39,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2783 states have (on average 1.1505569529284945) internal successors, (3202), 2783 states have internal predecessors, (3202), 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) [2021-10-13 00:40:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3202 transitions. [2021-10-13 00:40:39,261 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3202 transitions. Word has length 305 [2021-10-13 00:40:39,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:39,262 INFO L470 AbstractCegarLoop]: Abstraction has 2784 states and 3202 transitions. [2021-10-13 00:40:39,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2021-10-13 00:40:39,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3202 transitions. [2021-10-13 00:40:39,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-10-13 00:40:39,270 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:39,271 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:39,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:40:39,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-13 00:40:39,488 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:40:39,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:39,488 INFO L82 PathProgramCache]: Analyzing trace with hash -725494293, now seen corresponding path program 1 times [2021-10-13 00:40:39,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:39,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262986994] [2021-10-13 00:40:39,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:39,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:39,610 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-13 00:40:39,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:39,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262986994] [2021-10-13 00:40:39,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262986994] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:39,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:39,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:40:39,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795012742] [2021-10-13 00:40:39,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:40:39,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:39,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:40:39,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:39,613 INFO L87 Difference]: Start difference. First operand 2784 states and 3202 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:40,057 INFO L93 Difference]: Finished difference Result 5288 states and 6110 transitions. [2021-10-13 00:40:40,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:40:40,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 319 [2021-10-13 00:40:40,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:40,073 INFO L225 Difference]: With dead ends: 5288 [2021-10-13 00:40:40,073 INFO L226 Difference]: Without dead ends: 2645 [2021-10-13 00:40:40,076 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:40,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2021-10-13 00:40:40,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2367. [2021-10-13 00:40:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 2366 states have (on average 1.0946745562130178) internal successors, (2590), 2366 states have internal predecessors, (2590), 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) [2021-10-13 00:40:40,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 2590 transitions. [2021-10-13 00:40:40,125 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 2590 transitions. Word has length 319 [2021-10-13 00:40:40,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:40,126 INFO L470 AbstractCegarLoop]: Abstraction has 2367 states and 2590 transitions. [2021-10-13 00:40:40,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:40,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 2590 transitions. [2021-10-13 00:40:40,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-10-13 00:40:40,131 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:40,132 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-13 00:40:40,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 00:40:40,132 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:40:40,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:40,133 INFO L82 PathProgramCache]: Analyzing trace with hash 784405412, now seen corresponding path program 1 times [2021-10-13 00:40:40,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:40,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024009187] [2021-10-13 00:40:40,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:40,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-10-13 00:40:40,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:40,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024009187] [2021-10-13 00:40:40,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024009187] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:40,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:40,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:40:40,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034198963] [2021-10-13 00:40:40,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:40:40,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:40,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:40:40,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:40,288 INFO L87 Difference]: Start difference. First operand 2367 states and 2590 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2021-10-13 00:40:40,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:40,739 INFO L93 Difference]: Finished difference Result 5147 states and 5640 transitions. [2021-10-13 00:40:40,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:40:40,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 329 [2021-10-13 00:40:40,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:40,741 INFO L225 Difference]: With dead ends: 5147 [2021-10-13 00:40:40,741 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:40:40,745 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:40,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:40:40,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:40:40,746 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) [2021-10-13 00:40:40,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:40:40,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 329 [2021-10-13 00:40:40,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:40,746 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:40:40,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2021-10-13 00:40:40,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:40:40,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:40:40,749 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:40:40,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 00:40:40,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:40:40,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:40:40,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:40:40,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:40:41,207 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-13 00:40:41,207 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-13 00:40:41,208 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-13 00:40:41,208 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-13 00:40:41,208 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-13 00:40:41,208 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-13 00:40:41,208 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,208 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,208 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,208 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,209 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,209 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,209 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-13 00:40:41,209 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 00:40:41,209 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 00:40:41,209 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 00:40:41,209 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 00:40:41,209 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 00:40:41,209 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 00:40:41,210 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-13 00:40:41,210 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-13 00:40:41,210 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-13 00:40:41,210 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-13 00:40:41,210 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-13 00:40:41,210 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-13 00:40:41,210 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,210 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,210 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,211 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,211 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,211 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,211 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-13 00:40:41,211 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-13 00:40:41,211 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-13 00:40:41,211 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 00:40:41,211 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 00:40:41,211 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 00:40:41,212 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 00:40:41,212 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 00:40:41,212 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 00:40:41,212 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-13 00:40:41,212 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-13 00:40:41,212 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-13 00:40:41,212 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,212 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,212 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,213 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,213 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,213 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,213 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-13 00:40:41,213 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-13 00:40:41,213 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-13 00:40:41,213 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 00:40:41,215 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 00:40:41,215 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 00:40:41,215 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 00:40:41,215 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 00:40:41,215 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 00:40:41,215 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-13 00:40:41,216 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-13 00:40:41,216 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-13 00:40:41,216 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-13 00:40:41,216 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,216 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,216 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,216 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,216 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,216 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,217 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-13 00:40:41,217 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-13 00:40:41,217 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 00:40:41,217 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 00:40:41,217 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 00:40:41,217 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 00:40:41,217 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 00:40:41,219 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 00:40:41,219 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-13 00:40:41,221 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-13 00:40:41,221 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-13 00:40:41,221 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,221 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,221 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,222 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,222 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,223 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-13 00:40:41,223 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-13 00:40:41,223 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-13 00:40:41,223 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-13 00:40:41,223 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 00:40:41,224 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 00:40:41,224 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 00:40:41,224 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 00:40:41,224 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 00:40:41,224 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-13 00:40:41,224 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-13 00:40:41,225 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-13 00:40:41,225 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-13 00:40:41,225 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-13 00:40:41,225 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,225 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,225 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,226 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,226 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,226 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-13 00:40:41,226 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:40:41,226 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 00:40:41,226 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 00:40:41,226 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 00:40:41,227 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 00:40:41,227 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 00:40:41,227 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse4 (< 0 (+ ~a1~0 13))) (.cse5 (= ~a10~0 1)) (.cse1 (= ~a10~0 3)) (.cse2 (= 14 ~a4~0)) (.cse3 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 2)) (= ~a10~0 0) (and .cse0 (<= 4 ~a10~0)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (<= 9 ~a19~0)) (and .cse5 .cse2 (<= ~a19~0 7) .cse3 .cse4) (and .cse5 (< 331498 ~a1~0) .cse2 .cse3) (and (= ~a19~0 9) .cse1 .cse2 .cse3))) [2021-10-13 00:40:41,227 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-13 00:40:41,227 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-13 00:40:41,227 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-13 00:40:41,228 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-13 00:40:41,228 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,228 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,228 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,228 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,228 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,228 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-13 00:40:41,229 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-13 00:40:41,229 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-13 00:40:41,229 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 00:40:41,229 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 00:40:41,229 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 00:40:41,229 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 00:40:41,229 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 00:40:41,229 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-13 00:40:41,230 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-13 00:40:41,230 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-13 00:40:41,230 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-13 00:40:41,230 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-13 00:40:41,230 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-13 00:40:41,230 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:40:41,230 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,231 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,231 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,231 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,231 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,231 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 00:40:41,231 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 00:40:41,231 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 00:40:41,232 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 00:40:41,232 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 00:40:41,232 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-13 00:40:41,232 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-13 00:40:41,233 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-13 00:40:41,233 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-13 00:40:41,233 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,233 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,233 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,233 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,234 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:40:41,234 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,234 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-13 00:40:41,235 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-13 00:40:41,235 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-13 00:40:41,235 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-13 00:40:41,235 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 00:40:41,235 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 00:40:41,235 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 00:40:41,235 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 00:40:41,235 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 00:40:41,236 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-13 00:40:41,236 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-13 00:40:41,236 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-13 00:40:41,236 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse4 (< 0 (+ ~a1~0 13))) (.cse5 (= ~a10~0 1)) (.cse1 (= ~a10~0 3)) (.cse2 (= 14 ~a4~0)) (.cse3 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 2)) (= ~a10~0 0) (and .cse0 (<= 4 ~a10~0)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (<= 9 ~a19~0)) (and .cse5 .cse2 (<= ~a19~0 7) .cse3 .cse4) (and .cse5 (< 331498 ~a1~0) .cse2 .cse3) (and (= ~a19~0 9) .cse1 .cse2 .cse3))) [2021-10-13 00:40:41,236 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-13 00:40:41,236 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,236 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,237 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,237 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,237 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 00:40:41,237 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,237 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,237 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-13 00:40:41,237 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-13 00:40:41,238 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-13 00:40:41,238 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 00:40:41,238 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 00:40:41,238 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 00:40:41,238 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 00:40:41,238 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 00:40:41,238 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 00:40:41,239 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:40:41,239 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2021-10-13 00:40:41,239 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-13 00:40:41,239 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-13 00:40:41,239 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-13 00:40:41,239 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-13 00:40:41,239 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,240 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,240 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,240 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,240 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,240 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 00:40:41,240 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-13 00:40:41,240 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-13 00:40:41,240 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-13 00:40:41,241 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 00:40:41,241 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 00:40:41,241 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 00:40:41,241 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 00:40:41,241 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 00:40:41,242 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 00:40:41,247 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:40:41,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:40:41 BoogieIcfgContainer [2021-10-13 00:40:41,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:40:41,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:40:41,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:40:41,286 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:40:41,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:40:23" (3/4) ... [2021-10-13 00:40:41,289 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:40:41,317 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 00:40:41,318 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:40:41,319 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:40:41,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:40:41,464 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:40:41,465 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:40:41,466 INFO L168 Benchmark]: Toolchain (without parser) took 19629.93 ms. Allocated memory was 107.0 MB in the beginning and 251.7 MB in the end (delta: 144.7 MB). Free memory was 73.1 MB in the beginning and 75.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 141.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,467 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory is still 62.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:40:41,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.52 ms. Allocated memory is still 107.0 MB. Free memory was 72.9 MB in the beginning and 64.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,468 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.65 ms. Allocated memory is still 107.0 MB. Free memory was 64.9 MB in the beginning and 57.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,468 INFO L168 Benchmark]: Boogie Preprocessor took 84.34 ms. Allocated memory is still 107.0 MB. Free memory was 57.0 MB in the beginning and 52.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,469 INFO L168 Benchmark]: RCFGBuilder took 1222.54 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 52.0 MB in the beginning and 48.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,469 INFO L168 Benchmark]: TraceAbstraction took 17434.09 ms. Allocated memory was 130.0 MB in the beginning and 251.7 MB in the end (delta: 121.6 MB). Free memory was 47.3 MB in the beginning and 90.3 MB in the end (delta: -43.0 MB). Peak memory consumption was 78.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,469 INFO L168 Benchmark]: Witness Printer took 179.85 ms. Allocated memory is still 251.7 MB. Free memory was 90.3 MB in the beginning and 75.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,472 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory is still 62.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 607.52 ms. Allocated memory is still 107.0 MB. Free memory was 72.9 MB in the beginning and 64.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.65 ms. Allocated memory is still 107.0 MB. Free memory was 64.9 MB in the beginning and 57.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.34 ms. Allocated memory is still 107.0 MB. Free memory was 57.0 MB in the beginning and 52.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1222.54 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 52.0 MB in the beginning and 48.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17434.09 ms. Allocated memory was 130.0 MB in the beginning and 251.7 MB in the end (delta: 121.6 MB). Free memory was 47.3 MB in the beginning and 90.3 MB in the end (delta: -43.0 MB). Peak memory consumption was 78.5 MB. Max. memory is 16.1 GB. * Witness Printer took 179.85 ms. Allocated memory is still 251.7 MB. Free memory was 90.3 MB in the beginning and 75.6 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: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17325.4ms, OverallIterations: 11, TraceHistogramMax: 4, EmptinessCheckTime: 76.1ms, AutomataDifference: 8980.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 456.7ms, InitialAbstractionConstructionTime: 14.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1318 SDtfs, 2459 SDslu, 112 SDs, 0 SdLazy, 6949 SolverSat, 1124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6462.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 796 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 290.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2784occurred in iteration=8, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 519.5ms AutomataMinimizationTime, 11 MinimizatonAttempts, 4237 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 175 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2658 FormulaSimplificationTreeSizeReduction, 115.8ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 602 FormulaSimplificationTreeSizeReductionInter, 332.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 182.1ms SsaConstructionTime, 642.8ms SatisfiabilityAnalysisTime, 4994.3ms InterpolantComputationTime, 2990 NumberOfCodeBlocks, 2990 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2976 ConstructedInterpolants, 0 QuantifiedInterpolants, 13504 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1112 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 2022/2473 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((((((a19 <= 9 && a10 == 2) || a10 == 0) || (a19 <= 9 && 4 <= a10)) || ((((a19 <= 9 && a10 == 3) && 14 == a4) && a12 == 0) && 0 < a1 + 13)) || (a10 == 1 && 9 <= a19)) || ((((a10 == 1 && 14 == a4) && a19 <= 7) && a12 == 0) && 0 < a1 + 13)) || (((a10 == 1 && 331498 < a1) && 14 == a4) && a12 == 0)) || (((a19 == 9 && a10 == 3) && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((a19 <= 9 && a10 == 2) || a10 == 0) || (a19 <= 9 && 4 <= a10)) || ((((a19 <= 9 && a10 == 3) && 14 == a4) && a12 == 0) && 0 < a1 + 13)) || (a10 == 1 && 9 <= a19)) || ((((a10 == 1 && 14 == a4) && a19 <= 7) && a12 == 0) && 0 < a1 + 13)) || (((a10 == 1 && 331498 < a1) && 14 == a4) && a12 == 0)) || (((a19 == 9 && a10 == 3) && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 00:40:41,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc852aa-0b22-46e1-b6cc-8934faf27948/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...