./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD --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 e58738f03c291d912b42eb65343509a99f93ac40ab295d49133dc12600f622b8 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:30:55,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:30:55,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:30:55,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:30:55,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:30:55,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:30:55,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:30:55,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:30:55,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:30:55,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:30:55,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:30:55,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:30:55,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:30:55,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:30:55,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:30:55,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:30:55,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:30:55,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:30:55,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:30:55,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:30:55,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:30:55,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:30:55,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:30:55,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:30:55,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:30:55,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:30:55,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:30:55,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:30:55,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:30:55,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:30:55,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:30:55,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:30:55,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:30:55,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:30:55,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:30:55,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:30:55,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:30:55,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:30:55,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:30:55,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:30:55,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:30:55,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:30:55,640 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:30:55,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:30:55,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:30:55,641 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:30:55,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:30:55,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:30:55,642 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:30:55,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:30:55,643 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:30:55,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:30:55,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:30:55,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:30:55,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:30:55,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:30:55,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:30:55,644 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:30:55,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:30:55,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:30:55,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:30:55,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:30:55,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:30:55,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:30:55,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:30:55,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:30:55,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:30:55,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:30:55,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:30:55,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:30:55,652 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:30:55,653 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:30:55,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:30:55,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:30:55,654 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_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e58738f03c291d912b42eb65343509a99f93ac40ab295d49133dc12600f622b8 [2021-10-28 23:30:55,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:30:55,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:30:55,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:30:55,922 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:30:55,923 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:30:55,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2021-10-28 23:30:55,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/data/a865ae5ab/4b078c5b65f047e7bf134b48208d92c8/FLAG77a59dcb9 [2021-10-28 23:30:56,516 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:30:56,517 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2021-10-28 23:30:56,540 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/data/a865ae5ab/4b078c5b65f047e7bf134b48208d92c8/FLAG77a59dcb9 [2021-10-28 23:30:56,801 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/data/a865ae5ab/4b078c5b65f047e7bf134b48208d92c8 [2021-10-28 23:30:56,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:30:56,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:30:56,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:30:56,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:30:56,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:30:56,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:30:56" (1/1) ... [2021-10-28 23:30:56,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b5e498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:56, skipping insertion in model container [2021-10-28 23:30:56,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:30:56" (1/1) ... [2021-10-28 23:30:56,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:30:56,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:30:57,193 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_b0712687-fa74-48f2-ad3b-810f14b3c8bc/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c[7390,7403] [2021-10-28 23:30:57,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:30:57,318 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:30:57,378 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_b0712687-fa74-48f2-ad3b-810f14b3c8bc/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c[7390,7403] [2021-10-28 23:30:57,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:30:57,458 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:30:57,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:57 WrapperNode [2021-10-28 23:30:57,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:30:57,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:30:57,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:30:57,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:30:57,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:57" (1/1) ... [2021-10-28 23:30:57,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:57" (1/1) ... [2021-10-28 23:30:57,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:30:57,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:30:57,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:30:57,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:30:57,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:57" (1/1) ... [2021-10-28 23:30:57,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:57" (1/1) ... [2021-10-28 23:30:57,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:57" (1/1) ... [2021-10-28 23:30:57,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:57" (1/1) ... [2021-10-28 23:30:57,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:57" (1/1) ... [2021-10-28 23:30:57,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:57" (1/1) ... [2021-10-28 23:30:57,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:57" (1/1) ... [2021-10-28 23:30:57,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:30:57,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:30:57,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:30:57,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:30:57,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:57" (1/1) ... [2021-10-28 23:30:57,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:30:57,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:57,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:30:57,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:30:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:30:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:30:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:30:57,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:30:58,502 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:30:58,502 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-28 23:30:58,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:30:58 BoogieIcfgContainer [2021-10-28 23:30:58,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:30:58,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:30:58,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:30:58,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:30:58,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:30:56" (1/3) ... [2021-10-28 23:30:58,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f3e1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:30:58, skipping insertion in model container [2021-10-28 23:30:58,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:57" (2/3) ... [2021-10-28 23:30:58,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f3e1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:30:58, skipping insertion in model container [2021-10-28 23:30:58,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:30:58" (3/3) ... [2021-10-28 23:30:58,512 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2021-10-28 23:30:58,517 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:30:58,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 23:30:58,563 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:30:58,569 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:30:58,570 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 23:30:58,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 109 states have (on average 1.5688073394495412) internal successors, (171), 112 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) [2021-10-28 23:30:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:30:58,592 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:58,592 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:30:58,593 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:58,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash 2074315904, now seen corresponding path program 1 times [2021-10-28 23:30:58,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:58,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229013108] [2021-10-28 23:30:58,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:58,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:58,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:58,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:58,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229013108] [2021-10-28 23:30:58,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229013108] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:58,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:58,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:30:58,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144951976] [2021-10-28 23:30:58,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:30:58,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:58,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:30:58,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:30:58,905 INFO L87 Difference]: Start difference. First operand has 113 states, 109 states have (on average 1.5688073394495412) internal successors, (171), 112 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) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-10-28 23:30:58,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:58,933 INFO L93 Difference]: Finished difference Result 220 states and 335 transitions. [2021-10-28 23:30:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:30:58,935 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-10-28 23:30:58,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:58,945 INFO L225 Difference]: With dead ends: 220 [2021-10-28 23:30:58,945 INFO L226 Difference]: Without dead ends: 109 [2021-10-28 23:30:58,949 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:30:58,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-28 23:30:58,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-10-28 23:30:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 106 states have (on average 1.5) internal successors, (159), 108 states have internal predecessors, (159), 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) [2021-10-28 23:30:59,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2021-10-28 23:30:59,017 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 16 [2021-10-28 23:30:59,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:59,018 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2021-10-28 23:30:59,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-10-28 23:30:59,019 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2021-10-28 23:30:59,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:30:59,023 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:59,024 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:30:59,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:30:59,024 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:59,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:59,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1027559007, now seen corresponding path program 1 times [2021-10-28 23:30:59,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:59,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315411334] [2021-10-28 23:30:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:59,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:59,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:59,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315411334] [2021-10-28 23:30:59,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315411334] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:59,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:59,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:30:59,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420588913] [2021-10-28 23:30:59,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:59,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:59,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:59,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:59,188 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-10-28 23:30:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:59,209 INFO L93 Difference]: Finished difference Result 109 states and 159 transitions. [2021-10-28 23:30:59,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:59,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-10-28 23:30:59,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:59,213 INFO L225 Difference]: With dead ends: 109 [2021-10-28 23:30:59,214 INFO L226 Difference]: Without dead ends: 47 [2021-10-28 23:30:59,216 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:59,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-28 23:30:59,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-28 23:30:59,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 46 states have internal predecessors, (68), 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) [2021-10-28 23:30:59,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2021-10-28 23:30:59,228 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2021-10-28 23:30:59,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:59,229 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2021-10-28 23:30:59,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-10-28 23:30:59,230 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2021-10-28 23:30:59,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:30:59,231 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:59,232 INFO L513 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] [2021-10-28 23:30:59,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:30:59,233 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:59,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:59,234 INFO L85 PathProgramCache]: Analyzing trace with hash 109011716, now seen corresponding path program 1 times [2021-10-28 23:30:59,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:59,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602088399] [2021-10-28 23:30:59,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:59,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:59,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:59,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:59,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602088399] [2021-10-28 23:30:59,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602088399] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:59,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:59,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:30:59,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197515029] [2021-10-28 23:30:59,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:59,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:59,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:59,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:59,369 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-28 23:30:59,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:59,423 INFO L93 Difference]: Finished difference Result 129 states and 192 transitions. [2021-10-28 23:30:59,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:59,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-10-28 23:30:59,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:59,426 INFO L225 Difference]: With dead ends: 129 [2021-10-28 23:30:59,427 INFO L226 Difference]: Without dead ends: 88 [2021-10-28 23:30:59,427 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:59,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-28 23:30:59,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2021-10-28 23:30:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.5060240963855422) internal successors, (125), 83 states have internal predecessors, (125), 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) [2021-10-28 23:30:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 125 transitions. [2021-10-28 23:30:59,442 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 125 transitions. Word has length 22 [2021-10-28 23:30:59,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:59,442 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 125 transitions. [2021-10-28 23:30:59,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-10-28 23:30:59,443 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 125 transitions. [2021-10-28 23:30:59,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:30:59,445 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:59,445 INFO L513 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] [2021-10-28 23:30:59,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:30:59,445 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:59,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:59,448 INFO L85 PathProgramCache]: Analyzing trace with hash 60563277, now seen corresponding path program 1 times [2021-10-28 23:30:59,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:59,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522368023] [2021-10-28 23:30:59,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:59,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:59,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:59,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522368023] [2021-10-28 23:30:59,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522368023] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:59,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:59,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:30:59,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434262615] [2021-10-28 23:30:59,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:30:59,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:59,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:30:59,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:59,552 INFO L87 Difference]: Start difference. First operand 84 states and 125 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-10-28 23:30:59,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:59,617 INFO L93 Difference]: Finished difference Result 203 states and 306 transitions. [2021-10-28 23:30:59,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:30:59,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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 24 [2021-10-28 23:30:59,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:59,621 INFO L225 Difference]: With dead ends: 203 [2021-10-28 23:30:59,621 INFO L226 Difference]: Without dead ends: 125 [2021-10-28 23:30:59,624 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:30:59,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-28 23:30:59,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2021-10-28 23:30:59,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.4672131147540983) internal successors, (179), 122 states have internal predecessors, (179), 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) [2021-10-28 23:30:59,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 179 transitions. [2021-10-28 23:30:59,641 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 179 transitions. Word has length 24 [2021-10-28 23:30:59,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:59,641 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 179 transitions. [2021-10-28 23:30:59,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-10-28 23:30:59,642 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 179 transitions. [2021-10-28 23:30:59,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:30:59,645 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:59,645 INFO L513 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] [2021-10-28 23:30:59,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:30:59,646 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:59,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:59,648 INFO L85 PathProgramCache]: Analyzing trace with hash -445763815, now seen corresponding path program 1 times [2021-10-28 23:30:59,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:59,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000626654] [2021-10-28 23:30:59,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:59,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:59,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:59,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:59,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000626654] [2021-10-28 23:30:59,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000626654] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:59,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:59,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:30:59,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688387009] [2021-10-28 23:30:59,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:30:59,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:59,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:30:59,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:30:59,750 INFO L87 Difference]: Start difference. First operand 123 states and 179 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-28 23:30:59,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:30:59,864 INFO L93 Difference]: Finished difference Result 619 states and 916 transitions. [2021-10-28 23:30:59,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:30:59,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2021-10-28 23:30:59,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:30:59,869 INFO L225 Difference]: With dead ends: 619 [2021-10-28 23:30:59,869 INFO L226 Difference]: Without dead ends: 502 [2021-10-28 23:30:59,870 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:30:59,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-10-28 23:30:59,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 230. [2021-10-28 23:30:59,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.445414847161572) internal successors, (331), 229 states have internal predecessors, (331), 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) [2021-10-28 23:30:59,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 331 transitions. [2021-10-28 23:30:59,900 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 331 transitions. Word has length 25 [2021-10-28 23:30:59,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:30:59,901 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 331 transitions. [2021-10-28 23:30:59,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-28 23:30:59,901 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 331 transitions. [2021-10-28 23:30:59,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:30:59,902 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:30:59,903 INFO L513 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] [2021-10-28 23:30:59,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:30:59,903 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:30:59,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:59,905 INFO L85 PathProgramCache]: Analyzing trace with hash -649570909, now seen corresponding path program 1 times [2021-10-28 23:30:59,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:59,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228701985] [2021-10-28 23:30:59,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:59,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:59,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:59,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:59,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228701985] [2021-10-28 23:30:59,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228701985] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:59,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:59,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:30:59,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54830089] [2021-10-28 23:30:59,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:30:59,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:59,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:30:59,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:30:59,992 INFO L87 Difference]: Start difference. First operand 230 states and 331 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-28 23:31:00,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:00,120 INFO L93 Difference]: Finished difference Result 660 states and 954 transitions. [2021-10-28 23:31:00,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:31:00,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2021-10-28 23:31:00,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:00,125 INFO L225 Difference]: With dead ends: 660 [2021-10-28 23:31:00,125 INFO L226 Difference]: Without dead ends: 658 [2021-10-28 23:31:00,125 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:31:00,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2021-10-28 23:31:00,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 230. [2021-10-28 23:31:00,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.4366812227074235) internal successors, (329), 229 states have internal predecessors, (329), 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) [2021-10-28 23:31:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 329 transitions. [2021-10-28 23:31:00,148 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 329 transitions. Word has length 26 [2021-10-28 23:31:00,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:00,149 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 329 transitions. [2021-10-28 23:31:00,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-28 23:31:00,149 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 329 transitions. [2021-10-28 23:31:00,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:31:00,150 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:00,150 INFO L513 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] [2021-10-28 23:31:00,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:31:00,151 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:31:00,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:00,152 INFO L85 PathProgramCache]: Analyzing trace with hash 108971892, now seen corresponding path program 1 times [2021-10-28 23:31:00,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:00,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020515019] [2021-10-28 23:31:00,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:00,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:00,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:31:00,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:00,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020515019] [2021-10-28 23:31:00,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020515019] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:00,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:00,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:31:00,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268459254] [2021-10-28 23:31:00,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:31:00,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:00,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:31:00,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:31:00,212 INFO L87 Difference]: Start difference. First operand 230 states and 329 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-10-28 23:31:00,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:00,290 INFO L93 Difference]: Finished difference Result 634 states and 892 transitions. [2021-10-28 23:31:00,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:31:00,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-10-28 23:31:00,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:00,294 INFO L225 Difference]: With dead ends: 634 [2021-10-28 23:31:00,294 INFO L226 Difference]: Without dead ends: 410 [2021-10-28 23:31:00,296 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:31:00,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-10-28 23:31:00,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 254. [2021-10-28 23:31:00,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.3952569169960474) internal successors, (353), 253 states have internal predecessors, (353), 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) [2021-10-28 23:31:00,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 353 transitions. [2021-10-28 23:31:00,329 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 353 transitions. Word has length 31 [2021-10-28 23:31:00,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:00,331 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 353 transitions. [2021-10-28 23:31:00,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-10-28 23:31:00,332 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 353 transitions. [2021-10-28 23:31:00,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:31:00,335 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:00,335 INFO L513 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] [2021-10-28 23:31:00,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 23:31:00,336 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:31:00,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:00,337 INFO L85 PathProgramCache]: Analyzing trace with hash -284055118, now seen corresponding path program 1 times [2021-10-28 23:31:00,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:00,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601954669] [2021-10-28 23:31:00,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:00,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:31:00,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:00,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601954669] [2021-10-28 23:31:00,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601954669] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:00,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:00,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:31:00,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011927621] [2021-10-28 23:31:00,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:31:00,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:00,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:31:00,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:31:00,414 INFO L87 Difference]: Start difference. First operand 254 states and 353 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-10-28 23:31:00,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:00,476 INFO L93 Difference]: Finished difference Result 622 states and 854 transitions. [2021-10-28 23:31:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:31:00,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2021-10-28 23:31:00,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:00,480 INFO L225 Difference]: With dead ends: 622 [2021-10-28 23:31:00,480 INFO L226 Difference]: Without dead ends: 374 [2021-10-28 23:31:00,481 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:31:00,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-10-28 23:31:00,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 270. [2021-10-28 23:31:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 269 states have (on average 1.3717472118959109) internal successors, (369), 269 states have internal predecessors, (369), 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) [2021-10-28 23:31:00,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 369 transitions. [2021-10-28 23:31:00,509 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 369 transitions. Word has length 31 [2021-10-28 23:31:00,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:00,509 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 369 transitions. [2021-10-28 23:31:00,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-10-28 23:31:00,510 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 369 transitions. [2021-10-28 23:31:00,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:31:00,511 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:00,511 INFO L513 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] [2021-10-28 23:31:00,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 23:31:00,511 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:31:00,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:00,512 INFO L85 PathProgramCache]: Analyzing trace with hash -25889680, now seen corresponding path program 1 times [2021-10-28 23:31:00,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:00,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719151264] [2021-10-28 23:31:00,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:00,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:31:00,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:31:00,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:31:00,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719151264] [2021-10-28 23:31:00,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719151264] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:31:00,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:31:00,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:31:00,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875713917] [2021-10-28 23:31:00,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:31:00,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:31:00,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:31:00,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:31:00,570 INFO L87 Difference]: Start difference. First operand 270 states and 369 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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) [2021-10-28 23:31:00,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:31:00,617 INFO L93 Difference]: Finished difference Result 638 states and 866 transitions. [2021-10-28 23:31:00,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:31:00,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2021-10-28 23:31:00,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:31:00,621 INFO L225 Difference]: With dead ends: 638 [2021-10-28 23:31:00,621 INFO L226 Difference]: Without dead ends: 374 [2021-10-28 23:31:00,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:31:00,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-10-28 23:31:00,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2021-10-28 23:31:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 373 states have (on average 1.3270777479892761) internal successors, (495), 373 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) [2021-10-28 23:31:00,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 495 transitions. [2021-10-28 23:31:00,656 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 495 transitions. Word has length 31 [2021-10-28 23:31:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:31:00,656 INFO L470 AbstractCegarLoop]: Abstraction has 374 states and 495 transitions. [2021-10-28 23:31:00,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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) [2021-10-28 23:31:00,656 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 495 transitions. [2021-10-28 23:31:00,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 23:31:00,657 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:31:00,658 INFO L513 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] [2021-10-28 23:31:00,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 23:31:00,658 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:31:00,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:31:00,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2138649550, now seen corresponding path program 1 times [2021-10-28 23:31:00,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:31:00,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520313800] [2021-10-28 23:31:00,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:31:00,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:31:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:31:00,747 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:31:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:31:00,874 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:31:00,874 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:31:00,875 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:31:00,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:31:00,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:31:00,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 23:31:00,881 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:31:00,884 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:31:01,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:31:01 BoogieIcfgContainer [2021-10-28 23:31:01,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:31:01,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:31:01,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:31:01,010 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:31:01,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:30:58" (3/4) ... [2021-10-28 23:31:01,012 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:31:01,085 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:31:01,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:31:01,087 INFO L168 Benchmark]: Toolchain (without parser) took 4280.90 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 72.6 MB in the beginning and 57.3 MB in the end (delta: 15.3 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:01,087 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 77.6 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:31:01,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.22 ms. Allocated memory is still 94.4 MB. Free memory was 72.6 MB in the beginning and 59.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:01,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.62 ms. Allocated memory is still 94.4 MB. Free memory was 59.3 MB in the beginning and 55.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:01,088 INFO L168 Benchmark]: Boogie Preprocessor took 47.11 ms. Allocated memory is still 94.4 MB. Free memory was 55.8 MB in the beginning and 53.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:01,088 INFO L168 Benchmark]: RCFGBuilder took 918.39 ms. Allocated memory is still 94.4 MB. Free memory was 53.0 MB in the beginning and 44.8 MB in the end (delta: 8.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:01,089 INFO L168 Benchmark]: TraceAbstraction took 2502.98 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 44.3 MB in the beginning and 71.0 MB in the end (delta: -26.7 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:01,089 INFO L168 Benchmark]: Witness Printer took 75.17 ms. Allocated memory is still 125.8 MB. Free memory was 71.0 MB in the beginning and 57.3 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:01,092 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 77.6 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 653.22 ms. Allocated memory is still 94.4 MB. Free memory was 72.6 MB in the beginning and 59.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.62 ms. Allocated memory is still 94.4 MB. Free memory was 59.3 MB in the beginning and 55.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.11 ms. Allocated memory is still 94.4 MB. Free memory was 55.8 MB in the beginning and 53.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 918.39 ms. Allocated memory is still 94.4 MB. Free memory was 53.0 MB in the beginning and 44.8 MB in the end (delta: 8.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2502.98 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 44.3 MB in the beginning and 71.0 MB in the end (delta: -26.7 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. * Witness Printer took 75.17 ms. Allocated memory is still 125.8 MB. Free memory was 71.0 MB in the beginning and 57.3 MB in the end (delta: 13.7 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 500]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L362] int cleanupTimeShifts = 4; [L674] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L872] int waterLevel = 1; [L873] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L438] int retValue_acc ; [L439] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L487] int retValue_acc ; [L490] retValue_acc = 1 [L491] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] tmp = valid_product() [L447] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L267] int splverifierCounter ; [L268] int tmp ; [L269] int tmp___0 ; [L270] int tmp___1 ; [L271] int tmp___2 ; [L274] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L276] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L278] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L284] tmp = __VERIFIER_nondet_int() [L286] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L890] COND TRUE waterLevel < 2 [L891] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L294] tmp___0 = __VERIFIER_nondet_int() [L296] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L902] COND FALSE !(\read(methaneLevelCritical)) [L905] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L304] tmp___2 = __VERIFIER_nondet_int() [L306] COND TRUE \read(tmp___2) [L258] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L69] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L76] COND TRUE \read(systemActive) [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L127] COND FALSE !(\read(pumpRunning)) [L98] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L101] COND TRUE ! pumpRunning [L221] int retValue_acc ; [L222] int tmp ; [L223] int tmp___0 ; [L952] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L955] COND FALSE !(waterLevel < 2) [L959] retValue_acc = 0 [L960] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L227] tmp = isHighWaterSensorDry() [L229] COND FALSE !(\read(tmp)) [L232] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L234] retValue_acc = tmp___0 [L235] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L103] tmp = isHighWaterLevel() [L105] COND TRUE \read(tmp) [L152] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L337] int tmp ; [L338] int tmp___0 ; [L911] int retValue_acc ; [L914] retValue_acc = methaneLevelCritical [L915] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L342] tmp = isMethaneLevelCritical() [L344] COND TRUE \read(tmp) [L176] int retValue_acc ; [L179] retValue_acc = pumpRunning [L180] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L346] tmp___0 = isPumpRunning() [L348] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L500] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 500]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 500]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 833 SDtfs, 909 SDslu, 1082 SDs, 0 SdLazy, 153 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=374occurred in iteration=9, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 966 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 394 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:31:01,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0712687-fa74-48f2-ad3b-810f14b3c8bc/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...