./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --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 9fafab56630000a79d8eb06cf156a630d9ee1a5dd58dfc1d8991b95956e4dffd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:37:28,286 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:37:28,372 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 21:37:28,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:37:28,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:37:28,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:37:28,429 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:37:28,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:37:28,431 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:37:28,437 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:37:28,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:37:28,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:37:28,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:37:28,441 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:37:28,442 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:37:28,442 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:37:28,443 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:37:28,444 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:37:28,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:37:28,445 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:37:28,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:37:28,446 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:37:28,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:37:28,447 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:37:28,447 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:37:28,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:37:28,448 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:37:28,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:37:28,450 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:37:28,450 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:37:28,451 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:37:28,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:37:28,452 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:37:28,452 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:37:28,453 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:37:28,453 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:37:28,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:37:28,453 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:37:28,453 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:37:28,454 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:37:28,454 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:37:28,454 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:37:28,455 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fafab56630000a79d8eb06cf156a630d9ee1a5dd58dfc1d8991b95956e4dffd [2023-11-23 21:37:28,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:37:28,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:37:28,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:37:28,761 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:37:28,761 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:37:28,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i [2023-11-23 21:37:31,837 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:37:32,133 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:37:32,134 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i [2023-11-23 21:37:32,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/data/b03163383/2c9670ca7bdc488dbba0d2b7ffbf4324/FLAG617e4238d [2023-11-23 21:37:32,156 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/data/b03163383/2c9670ca7bdc488dbba0d2b7ffbf4324 [2023-11-23 21:37:32,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:37:32,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:37:32,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:37:32,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:37:32,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:37:32,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ca96cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32, skipping insertion in model container [2023-11-23 21:37:32,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,212 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:37:32,403 WARN L240 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_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i[913,926] [2023-11-23 21:37:32,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:37:32,499 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:37:32,516 WARN L240 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_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i[913,926] [2023-11-23 21:37:32,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:37:32,569 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:37:32,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32 WrapperNode [2023-11-23 21:37:32,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:37:32,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:37:32,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:37:32,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:37:32,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,653 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2023-11-23 21:37:32,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:37:32,654 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:37:32,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:37:32,655 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:37:32,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,669 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,683 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 21:37:32,683 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,684 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,711 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:37:32,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:37:32,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:37:32,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:37:32,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (1/1) ... [2023-11-23 21:37:32,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:37:32,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:32,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:32,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:37:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:37:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:37:32,820 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:37:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:37:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:37:32,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:37:32,936 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:37:32,938 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:37:33,274 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:37:33,319 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:37:33,320 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:37:33,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:33 BoogieIcfgContainer [2023-11-23 21:37:33,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:37:33,323 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:37:33,323 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:37:33,326 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:37:33,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:37:32" (1/3) ... [2023-11-23 21:37:33,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357230b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:37:33, skipping insertion in model container [2023-11-23 21:37:33,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:32" (2/3) ... [2023-11-23 21:37:33,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357230b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:37:33, skipping insertion in model container [2023-11-23 21:37:33,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:33" (3/3) ... [2023-11-23 21:37:33,330 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-70.i [2023-11-23 21:37:33,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:37:33,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:37:33,414 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:37:33,423 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2281c33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:37:33,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:37:33,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 35 states have (on average 1.457142857142857) internal successors, (51), 36 states have internal predecessors, (51), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 21:37:33,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-23 21:37:33,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:33,440 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:33,440 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:33,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:33,445 INFO L85 PathProgramCache]: Analyzing trace with hash 406866168, now seen corresponding path program 1 times [2023-11-23 21:37:33,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:33,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397099909] [2023-11-23 21:37:33,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:33,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:37:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:37:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:37:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:37:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:37:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:37:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:37:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:37:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:37:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:37:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 21:37:33,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:33,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397099909] [2023-11-23 21:37:33,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397099909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:33,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:33,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:33,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100316970] [2023-11-23 21:37:33,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:33,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:37:33,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:33,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:37:33,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:37:33,881 INFO L87 Difference]: Start difference. First operand has 50 states, 35 states have (on average 1.457142857142857) internal successors, (51), 36 states have internal predecessors, (51), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 21:37:33,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:33,971 INFO L93 Difference]: Finished difference Result 97 states and 160 transitions. [2023-11-23 21:37:33,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:37:33,974 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2023-11-23 21:37:33,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:33,984 INFO L225 Difference]: With dead ends: 97 [2023-11-23 21:37:33,985 INFO L226 Difference]: Without dead ends: 48 [2023-11-23 21:37:33,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:37:33,992 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:33,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:34,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-23 21:37:34,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-23 21:37:34,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 21:37:34,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2023-11-23 21:37:34,043 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 70 transitions. Word has length 83 [2023-11-23 21:37:34,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:34,044 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 70 transitions. [2023-11-23 21:37:34,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 21:37:34,044 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 70 transitions. [2023-11-23 21:37:34,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-23 21:37:34,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:34,049 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:34,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:37:34,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:34,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:34,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1600030208, now seen corresponding path program 1 times [2023-11-23 21:37:34,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:34,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359834545] [2023-11-23 21:37:34,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:34,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:37:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:37:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:37:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:37:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:37:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:37:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:37:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:37:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:37:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:37:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,396 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 21:37:34,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:34,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359834545] [2023-11-23 21:37:34,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359834545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:34,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:34,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:37:34,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663248735] [2023-11-23 21:37:34,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:34,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:34,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:34,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:34,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:34,414 INFO L87 Difference]: Start difference. First operand 48 states and 70 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:34,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:34,518 INFO L93 Difference]: Finished difference Result 95 states and 139 transitions. [2023-11-23 21:37:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:34,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2023-11-23 21:37:34,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:34,522 INFO L225 Difference]: With dead ends: 95 [2023-11-23 21:37:34,522 INFO L226 Difference]: Without dead ends: 48 [2023-11-23 21:37:34,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:34,525 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 4 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:34,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 105 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:34,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-23 21:37:34,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-23 21:37:34,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 21:37:34,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2023-11-23 21:37:34,537 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 83 [2023-11-23 21:37:34,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:34,540 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2023-11-23 21:37:34,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:34,540 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2023-11-23 21:37:34,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 21:37:34,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:34,544 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:34,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:37:34,545 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:34,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:34,546 INFO L85 PathProgramCache]: Analyzing trace with hash -2145450332, now seen corresponding path program 1 times [2023-11-23 21:37:34,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:34,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220769041] [2023-11-23 21:37:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:34,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:37:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:37:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:37:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:37:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:37:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:37:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:37:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:37:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:37:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:37:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:34,711 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 21:37:34,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:34,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220769041] [2023-11-23 21:37:34,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220769041] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:34,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:34,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:37:34,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404242250] [2023-11-23 21:37:34,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:34,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:34,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:34,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:34,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:34,716 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:34,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:34,828 INFO L93 Difference]: Finished difference Result 138 states and 198 transitions. [2023-11-23 21:37:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:34,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 85 [2023-11-23 21:37:34,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:34,832 INFO L225 Difference]: With dead ends: 138 [2023-11-23 21:37:34,832 INFO L226 Difference]: Without dead ends: 91 [2023-11-23 21:37:34,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:34,835 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 56 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:34,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 134 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:34,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-23 21:37:34,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 59. [2023-11-23 21:37:34,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 21:37:34,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 84 transitions. [2023-11-23 21:37:34,851 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 84 transitions. Word has length 85 [2023-11-23 21:37:34,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:34,852 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 84 transitions. [2023-11-23 21:37:34,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:34,853 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 84 transitions. [2023-11-23 21:37:34,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 21:37:34,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:34,855 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:34,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:37:34,856 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:34,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:34,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1752423322, now seen corresponding path program 1 times [2023-11-23 21:37:34,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:34,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831923563] [2023-11-23 21:37:34,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:34,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:37:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:37:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:37:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:37:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:37:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:37:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:37:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:37:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:37:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:37:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:35,844 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 21:37:35,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:35,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831923563] [2023-11-23 21:37:35,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831923563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:35,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:35,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 21:37:35,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726904088] [2023-11-23 21:37:35,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:35,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:37:35,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:35,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:37:35,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:37:35,859 INFO L87 Difference]: Start difference. First operand 59 states and 84 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:36,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:36,250 INFO L93 Difference]: Finished difference Result 196 states and 273 transitions. [2023-11-23 21:37:36,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:37:36,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 85 [2023-11-23 21:37:36,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:36,254 INFO L225 Difference]: With dead ends: 196 [2023-11-23 21:37:36,255 INFO L226 Difference]: Without dead ends: 138 [2023-11-23 21:37:36,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:37:36,257 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 98 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:36,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 212 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:37:36,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-23 21:37:36,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 104. [2023-11-23 21:37:36,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 88 states have internal predecessors, (118), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:37:36,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 146 transitions. [2023-11-23 21:37:36,277 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 146 transitions. Word has length 85 [2023-11-23 21:37:36,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:36,278 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 146 transitions. [2023-11-23 21:37:36,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:36,279 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 146 transitions. [2023-11-23 21:37:36,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 21:37:36,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:36,282 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:36,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:37:36,283 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:36,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:36,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1733197348, now seen corresponding path program 1 times [2023-11-23 21:37:36,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:36,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410311731] [2023-11-23 21:37:36,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:36,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:37:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:37:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:37:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:37:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:37:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:37:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:37:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:37:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:37:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:37:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 21:37:38,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:38,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410311731] [2023-11-23 21:37:38,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410311731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:38,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:38,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:37:38,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505670836] [2023-11-23 21:37:38,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:38,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:37:38,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:38,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:37:38,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:37:38,465 INFO L87 Difference]: Start difference. First operand 104 states and 146 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:38,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:38,933 INFO L93 Difference]: Finished difference Result 234 states and 326 transitions. [2023-11-23 21:37:38,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:37:38,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 85 [2023-11-23 21:37:38,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:38,939 INFO L225 Difference]: With dead ends: 234 [2023-11-23 21:37:38,939 INFO L226 Difference]: Without dead ends: 131 [2023-11-23 21:37:38,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:37:38,949 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 84 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:38,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 140 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:37:38,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-23 21:37:38,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 114. [2023-11-23 21:37:38,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 97 states have (on average 1.3505154639175259) internal successors, (131), 98 states have internal predecessors, (131), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:37:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2023-11-23 21:37:38,984 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 85 [2023-11-23 21:37:38,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:38,985 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2023-11-23 21:37:38,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:38,985 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2023-11-23 21:37:38,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 21:37:38,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:38,991 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:38,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:37:38,992 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:38,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:38,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1531426724, now seen corresponding path program 1 times [2023-11-23 21:37:38,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:38,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574093126] [2023-11-23 21:37:38,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:38,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:37:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:37:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:37:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:37:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:37:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:37:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:37:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:37:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:37:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:37:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 21:37:45,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:45,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574093126] [2023-11-23 21:37:45,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574093126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:45,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:45,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 21:37:45,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842247181] [2023-11-23 21:37:45,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:45,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 21:37:45,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:45,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 21:37:45,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:37:45,110 INFO L87 Difference]: Start difference. First operand 114 states and 159 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:47,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:47,204 INFO L93 Difference]: Finished difference Result 259 states and 355 transitions. [2023-11-23 21:37:47,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 21:37:47,205 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 85 [2023-11-23 21:37:47,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:47,207 INFO L225 Difference]: With dead ends: 259 [2023-11-23 21:37:47,207 INFO L226 Difference]: Without dead ends: 146 [2023-11-23 21:37:47,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-11-23 21:37:47,210 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 116 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:47,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 334 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 21:37:47,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-23 21:37:47,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 114. [2023-11-23 21:37:47,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 97 states have (on average 1.3505154639175259) internal successors, (131), 98 states have internal predecessors, (131), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:37:47,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2023-11-23 21:37:47,228 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 85 [2023-11-23 21:37:47,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:47,228 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2023-11-23 21:37:47,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:47,229 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2023-11-23 21:37:47,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 21:37:47,230 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:47,231 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:47,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:37:47,231 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:47,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:47,232 INFO L85 PathProgramCache]: Analyzing trace with hash 722080098, now seen corresponding path program 1 times [2023-11-23 21:37:47,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:47,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073470107] [2023-11-23 21:37:47,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:47,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:37:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:37:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:37:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:37:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:37:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:37:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:37:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:37:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:37:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:37:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 21:37:48,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:48,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073470107] [2023-11-23 21:37:48,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073470107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:48,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:48,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:37:48,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050941588] [2023-11-23 21:37:48,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:48,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:37:48,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:48,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:37:48,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:37:48,549 INFO L87 Difference]: Start difference. First operand 114 states and 159 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:48,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:48,788 INFO L93 Difference]: Finished difference Result 230 states and 319 transitions. [2023-11-23 21:37:48,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:37:48,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 85 [2023-11-23 21:37:48,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:48,791 INFO L225 Difference]: With dead ends: 230 [2023-11-23 21:37:48,791 INFO L226 Difference]: Without dead ends: 117 [2023-11-23 21:37:48,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:37:48,795 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 54 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:48,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 132 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:37:48,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-23 21:37:48,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 104. [2023-11-23 21:37:48,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 87 states have (on average 1.3333333333333333) internal successors, (116), 88 states have internal predecessors, (116), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:37:48,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 144 transitions. [2023-11-23 21:37:48,814 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 144 transitions. Word has length 85 [2023-11-23 21:37:48,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:48,815 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 144 transitions. [2023-11-23 21:37:48,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:48,815 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 144 transitions. [2023-11-23 21:37:48,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 21:37:48,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:48,817 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:48,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:37:48,818 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:48,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:48,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1262680296, now seen corresponding path program 1 times [2023-11-23 21:37:48,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:48,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149577281] [2023-11-23 21:37:48,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:48,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:37:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:37:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:37:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:37:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:37:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:37:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:37:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:37:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:37:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:37:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:48,904 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 21:37:48,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:48,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149577281] [2023-11-23 21:37:48,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149577281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:48,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:48,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:37:48,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769677709] [2023-11-23 21:37:48,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:48,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:48,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:48,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:48,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:48,909 INFO L87 Difference]: Start difference. First operand 104 states and 144 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:48,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:48,940 INFO L93 Difference]: Finished difference Result 210 states and 289 transitions. [2023-11-23 21:37:48,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:48,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 85 [2023-11-23 21:37:48,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:48,943 INFO L225 Difference]: With dead ends: 210 [2023-11-23 21:37:48,944 INFO L226 Difference]: Without dead ends: 107 [2023-11-23 21:37:48,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:48,946 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 29 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:48,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 146 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:48,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-23 21:37:48,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2023-11-23 21:37:48,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 87 states have (on average 1.3218390804597702) internal successors, (115), 88 states have internal predecessors, (115), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:37:48,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 143 transitions. [2023-11-23 21:37:48,965 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 143 transitions. Word has length 85 [2023-11-23 21:37:48,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:48,965 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 143 transitions. [2023-11-23 21:37:48,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 143 transitions. [2023-11-23 21:37:48,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 21:37:48,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:48,967 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:48,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:37:48,968 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:48,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:48,968 INFO L85 PathProgramCache]: Analyzing trace with hash 251563046, now seen corresponding path program 1 times [2023-11-23 21:37:48,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:48,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915155032] [2023-11-23 21:37:48,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:48,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:37:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:37:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:37:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:37:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:37:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:37:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:37:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:37:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:37:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:37:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,150 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 21:37:49,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:49,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915155032] [2023-11-23 21:37:49,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915155032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:49,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:49,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:37:49,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561792858] [2023-11-23 21:37:49,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:49,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:37:49,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:49,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:37:49,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:49,153 INFO L87 Difference]: Start difference. First operand 104 states and 143 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:49,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:49,195 INFO L93 Difference]: Finished difference Result 210 states and 287 transitions. [2023-11-23 21:37:49,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:37:49,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 85 [2023-11-23 21:37:49,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:49,197 INFO L225 Difference]: With dead ends: 210 [2023-11-23 21:37:49,198 INFO L226 Difference]: Without dead ends: 107 [2023-11-23 21:37:49,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:37:49,199 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 26 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:49,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 219 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:49,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-23 21:37:49,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2023-11-23 21:37:49,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 88 states have internal predecessors, (113), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:37:49,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 141 transitions. [2023-11-23 21:37:49,218 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 141 transitions. Word has length 85 [2023-11-23 21:37:49,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:49,219 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 141 transitions. [2023-11-23 21:37:49,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:49,219 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 141 transitions. [2023-11-23 21:37:49,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-23 21:37:49,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:49,221 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:49,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:37:49,221 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:49,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:49,222 INFO L85 PathProgramCache]: Analyzing trace with hash -745219659, now seen corresponding path program 1 times [2023-11-23 21:37:49,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:49,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021607175] [2023-11-23 21:37:49,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:49,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:37:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:37:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:37:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:37:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:37:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:37:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:37:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:37:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:37:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:37:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,308 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 21:37:49,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:49,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021607175] [2023-11-23 21:37:49,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021607175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:49,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:49,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:37:49,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867213904] [2023-11-23 21:37:49,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:49,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:49,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:49,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:49,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:49,311 INFO L87 Difference]: Start difference. First operand 104 states and 141 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:49,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:49,354 INFO L93 Difference]: Finished difference Result 207 states and 281 transitions. [2023-11-23 21:37:49,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:49,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 88 [2023-11-23 21:37:49,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:49,356 INFO L225 Difference]: With dead ends: 207 [2023-11-23 21:37:49,356 INFO L226 Difference]: Without dead ends: 104 [2023-11-23 21:37:49,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:49,358 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 5 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:49,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 103 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:49,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-23 21:37:49,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2023-11-23 21:37:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 87 states have (on average 1.2528735632183907) internal successors, (109), 88 states have internal predecessors, (109), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:37:49,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 137 transitions. [2023-11-23 21:37:49,370 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 137 transitions. Word has length 88 [2023-11-23 21:37:49,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:49,374 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 137 transitions. [2023-11-23 21:37:49,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:37:49,374 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 137 transitions. [2023-11-23 21:37:49,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-23 21:37:49,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:49,376 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:49,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 21:37:49,377 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:49,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:49,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1647609509, now seen corresponding path program 1 times [2023-11-23 21:37:49,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:49,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148198938] [2023-11-23 21:37:49,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:49,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:37:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:37:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:37:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:37:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:37:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:37:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:37:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:37:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:37:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:37:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,673 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-23 21:37:49,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:49,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148198938] [2023-11-23 21:37:49,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148198938] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:37:49,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474312994] [2023-11-23 21:37:49,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:49,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:49,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:49,677 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:49,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:37:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:49,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 21:37:49,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:50,016 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 113 proven. 24 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-23 21:37:50,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:50,888 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-23 21:37:50,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474312994] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:50,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:37:50,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 9] total 14 [2023-11-23 21:37:50,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861693835] [2023-11-23 21:37:50,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:50,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 21:37:50,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:50,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 21:37:50,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:37:50,892 INFO L87 Difference]: Start difference. First operand 104 states and 137 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 21:37:52,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:52,350 INFO L93 Difference]: Finished difference Result 262 states and 328 transitions. [2023-11-23 21:37:52,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-23 21:37:52,351 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 90 [2023-11-23 21:37:52,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:52,352 INFO L225 Difference]: With dead ends: 262 [2023-11-23 21:37:52,352 INFO L226 Difference]: Without dead ends: 153 [2023-11-23 21:37:52,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2023-11-23 21:37:52,354 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 143 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:52,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 239 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 21:37:52,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-23 21:37:52,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 100. [2023-11-23 21:37:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 83 states have internal predecessors, (97), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:37:52,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2023-11-23 21:37:52,373 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 90 [2023-11-23 21:37:52,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:52,373 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2023-11-23 21:37:52,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 21:37:52,374 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2023-11-23 21:37:52,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-23 21:37:52,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:52,375 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:52,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:52,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:52,604 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:52,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:52,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1545220059, now seen corresponding path program 1 times [2023-11-23 21:37:52,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:52,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850678568] [2023-11-23 21:37:52,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:52,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 21:37:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 21:37:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:37:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:37:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:37:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 21:37:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 21:37:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 21:37:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 21:37:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 21:37:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 21:37:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 21:37:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,316 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-23 21:37:53,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:53,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850678568] [2023-11-23 21:37:53,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850678568] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:37:53,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355033733] [2023-11-23 21:37:53,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:53,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:53,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:53,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:53,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:37:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 21:37:53,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:53,719 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 87 proven. 27 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-23 21:37:53,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-23 21:37:54,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355033733] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:54,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:37:54,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 22 [2023-11-23 21:37:54,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133365341] [2023-11-23 21:37:54,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:54,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-23 21:37:54,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:54,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-23 21:37:54,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2023-11-23 21:37:54,016 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-23 21:37:55,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:55,197 INFO L93 Difference]: Finished difference Result 211 states and 259 transitions. [2023-11-23 21:37:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 21:37:55,198 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 90 [2023-11-23 21:37:55,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:55,201 INFO L225 Difference]: With dead ends: 211 [2023-11-23 21:37:55,201 INFO L226 Difference]: Without dead ends: 112 [2023-11-23 21:37:55,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=302, Invalid=1180, Unknown=0, NotChecked=0, Total=1482 [2023-11-23 21:37:55,204 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 302 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:55,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 243 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:37:55,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-23 21:37:55,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 104. [2023-11-23 21:37:55,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 85 states have (on average 1.1529411764705881) internal successors, (98), 86 states have internal predecessors, (98), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:37:55,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2023-11-23 21:37:55,226 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 90 [2023-11-23 21:37:55,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:55,227 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2023-11-23 21:37:55,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-23 21:37:55,227 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2023-11-23 21:37:55,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-23 21:37:55,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:55,228 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:55,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:55,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:55,442 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:37:55,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:55,443 INFO L85 PathProgramCache]: Analyzing trace with hash 958414045, now seen corresponding path program 1 times [2023-11-23 21:37:55,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:55,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904904732] [2023-11-23 21:37:55,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:55,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:55,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:55,581 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:37:55,581 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:37:55,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 21:37:55,588 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:55,592 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:37:55,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 21:37:55,677 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 21:37:55,680 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-23 21:37:55,680 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 21:37:55,681 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite6 could not be translated [2023-11-23 21:37:55,681 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-23 21:37:55,682 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 21:37:55,683 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated [2023-11-23 21:37:55,683 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 21:37:55,684 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated [2023-11-23 21:37:55,684 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated [2023-11-23 21:37:55,684 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 21:37:55,684 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated [2023-11-23 21:37:55,685 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 21:37:55,685 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated [2023-11-23 21:37:55,685 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 21:37:55,686 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated [2023-11-23 21:37:55,686 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated [2023-11-23 21:37:55,687 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated [2023-11-23 21:37:55,687 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated [2023-11-23 21:37:55,687 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated [2023-11-23 21:37:55,687 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 21:37:55,688 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated [2023-11-23 21:37:55,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:37:55 BoogieIcfgContainer [2023-11-23 21:37:55,709 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:37:55,710 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:37:55,710 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:37:55,710 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:37:55,711 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:33" (3/4) ... [2023-11-23 21:37:55,713 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:37:55,714 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:37:55,715 INFO L158 Benchmark]: Toolchain (without parser) took 23554.88ms. Allocated memory was 153.1MB in the beginning and 333.4MB in the end (delta: 180.4MB). Free memory was 121.3MB in the beginning and 288.2MB in the end (delta: -166.9MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2023-11-23 21:37:55,715 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:37:55,715 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.15ms. Allocated memory is still 153.1MB. Free memory was 121.3MB in the beginning and 108.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:37:55,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.73ms. Allocated memory is still 153.1MB. Free memory was 108.2MB in the beginning and 105.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:37:55,716 INFO L158 Benchmark]: Boogie Preprocessor took 61.12ms. Allocated memory is still 153.1MB. Free memory was 105.1MB in the beginning and 101.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:37:55,717 INFO L158 Benchmark]: RCFGBuilder took 604.30ms. Allocated memory is still 153.1MB. Free memory was 101.4MB in the beginning and 82.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:37:55,718 INFO L158 Benchmark]: TraceAbstraction took 22386.61ms. Allocated memory was 153.1MB in the beginning and 333.4MB in the end (delta: 180.4MB). Free memory was 82.1MB in the beginning and 288.2MB in the end (delta: -206.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:37:55,718 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 333.4MB. Free memory is still 288.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:37:55,720 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.15ms. Allocated memory is still 153.1MB. Free memory was 121.3MB in the beginning and 108.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.73ms. Allocated memory is still 153.1MB. Free memory was 108.2MB in the beginning and 105.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.12ms. Allocated memory is still 153.1MB. Free memory was 105.1MB in the beginning and 101.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 604.30ms. Allocated memory is still 153.1MB. Free memory was 101.4MB in the beginning and 82.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 22386.61ms. Allocated memory was 153.1MB in the beginning and 333.4MB in the end (delta: 180.4MB). Free memory was 82.1MB in the beginning and 288.2MB in the end (delta: -206.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 333.4MB. Free memory is still 288.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 85, overapproximation of someBinaryArithmeticDOUBLEoperation at line 57. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 0; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_4 = 19138; [L25] signed char var_1_6 = 25; [L26] signed long int var_1_7 = -50; [L27] double var_1_8 = 8.3; [L28] double var_1_9 = 255.6; [L29] double var_1_10 = 10000000.375; [L30] double var_1_11 = 0.0; [L31] double var_1_12 = 255.375; [L32] unsigned char var_1_13 = 50; [L33] unsigned char var_1_14 = 2; [L34] signed char var_1_15 = 1; [L35] signed char var_1_16 = 5; [L89] isInitial = 1 [L90] FCALL initially() [L91] COND TRUE 1 [L92] FCALL updateLastVariables() [L93] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L63] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L63] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L64] var_1_4 = __VERIFIER_nondet_ushort() [L65] CALL assume_abort_if_not(var_1_4 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L65] RET assume_abort_if_not(var_1_4 >= 16383) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L66] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L66] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L67] var_1_9 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L68] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L69] var_1_10 = __VERIFIER_nondet_double() [L70] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L70] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L71] var_1_11 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L72] RET assume_abort_if_not((var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L73] var_1_12 = __VERIFIER_nondet_double() [L74] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L74] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L75] var_1_14 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_13=50, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L76] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_13=50, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L77] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L77] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L78] var_1_16 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L79] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L80] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L80] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L93] RET updateVariables() [L94] CALL step() [L39] var_1_13 = var_1_14 [L40] var_1_15 = var_1_16 VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L41] COND TRUE \read(var_1_2) [L42] var_1_1 = ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L44] COND FALSE !(var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L47] unsigned short int stepLocal_0 = var_1_4; VAL [isInitial=1, stepLocal_0=16383, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L48] EXPR var_1_13 << var_1_13 VAL [isInitial=1, stepLocal_0=16383, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L48] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) VAL [isInitial=1, stepLocal_0=16383, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L48] EXPR var_1_13 << var_1_13 VAL [isInitial=1, stepLocal_0=16383, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L48] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) VAL [isInitial=1, stepLocal_0=16383, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L48] COND FALSE !(stepLocal_0 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) [L51] var_1_7 = (var_1_13 + (var_1_1 + var_1_4)) VAL [isInitial=1, stepLocal_0=16383, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988, var_1_8=83/10] [L53] unsigned char stepLocal_1 = var_1_13; VAL [isInitial=1, stepLocal_0=16383, stepLocal_1=0, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988, var_1_8=83/10] [L54] COND FALSE !(var_1_13 < stepLocal_1) [L57] var_1_8 = ((var_1_11 - var_1_12) - var_1_9) VAL [isInitial=1, stepLocal_0=16383, stepLocal_1=0, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L94] RET step() [L95] CALL, EXPR property() [L85] EXPR ((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) ? (var_1_7 == ((signed long int) (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_13 + (var_1_1 + var_1_4))))) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L85] EXPR var_1_13 << var_1_13 VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L85] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L85] EXPR var_1_13 << var_1_13 VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L85] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L85] EXPR ((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) ? (var_1_7 == ((signed long int) (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_13 + (var_1_1 + var_1_4))))) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L85-L86] return (((((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) ? (var_1_7 == ((signed long int) (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_13 + (var_1_1 + var_1_4)))))) && ((var_1_13 < var_1_13) ? (var_1_8 == ((double) (var_1_9 - var_1_10))) : (var_1_8 == ((double) ((var_1_11 - var_1_12) - var_1_9))))) && (var_1_13 == ((unsigned char) var_1_14))) && (var_1_15 == ((signed char) var_1_16)) ; [L95] RET, EXPR property() [L95] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_13=0, var_1_14=0, var_1_15=-127, var_1_16=-127, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.2s, OverallIterations: 13, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 921 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 917 mSDsluCounter, 2074 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1343 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1955 IncrementalHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 731 mSDtfsCounter, 1955 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 772 GetRequests, 665 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=5, InterpolantAutomatonStates: 97, 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, 12 MinimizatonAttempts, 195 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 1299 NumberOfCodeBlocks, 1299 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1373 ConstructedInterpolants, 0 QuantifiedInterpolants, 8428 SizeOfPredicates, 9 NumberOfNonLiveVariables, 447 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 4071/4224 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 could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:37:55,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --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 9fafab56630000a79d8eb06cf156a630d9ee1a5dd58dfc1d8991b95956e4dffd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:37:58,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:37:58,475 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-23 21:37:58,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:37:58,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:37:58,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:37:58,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:37:58,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:37:58,544 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:37:58,549 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:37:58,550 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:37:58,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:37:58,551 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:37:58,553 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:37:58,553 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:37:58,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:37:58,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:37:58,555 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:37:58,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:37:58,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:37:58,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:37:58,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:37:58,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:37:58,559 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:37:58,559 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:37:58,560 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:37:58,560 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:37:58,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:37:58,561 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:37:58,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:37:58,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:37:58,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:37:58,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:37:58,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:37:58,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:37:58,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:37:58,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:37:58,566 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 21:37:58,566 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:37:58,566 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:37:58,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:37:58,567 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:37:58,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:37:58,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:37:58,568 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 21:37:58,568 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fafab56630000a79d8eb06cf156a630d9ee1a5dd58dfc1d8991b95956e4dffd [2023-11-23 21:37:58,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:37:59,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:37:59,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:37:59,030 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:37:59,031 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:37:59,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i [2023-11-23 21:38:02,304 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:38:02,593 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:38:02,593 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i [2023-11-23 21:38:02,603 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/data/e064aea86/72e57e33304d46eea1ca67953811fbe3/FLAGe66bf9a0e [2023-11-23 21:38:02,615 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/data/e064aea86/72e57e33304d46eea1ca67953811fbe3 [2023-11-23 21:38:02,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:38:02,619 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:38:02,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:38:02,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:38:02,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:38:02,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:02,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de9c20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02, skipping insertion in model container [2023-11-23 21:38:02,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:02,664 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:38:02,838 WARN L240 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_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i[913,926] [2023-11-23 21:38:02,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:38:02,890 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:38:02,903 WARN L240 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_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i[913,926] [2023-11-23 21:38:02,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:38:02,941 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:38:02,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02 WrapperNode [2023-11-23 21:38:02,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:38:02,942 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:38:02,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:38:02,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:38:02,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:02,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:02,989 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 98 [2023-11-23 21:38:02,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:38:02,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:38:02,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:38:02,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:38:03,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:03,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:03,007 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:03,032 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 21:38:03,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:03,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:03,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:03,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:03,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:03,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:03,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:38:03,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:38:03,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:38:03,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:38:03,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (1/1) ... [2023-11-23 21:38:03,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:38:03,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:38:03,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:38:03,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:38:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:38:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-23 21:38:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:38:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:38:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:38:03,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:38:03,231 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:38:03,233 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:38:04,869 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:38:04,920 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:38:04,933 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:38:04,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:38:04 BoogieIcfgContainer [2023-11-23 21:38:04,934 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:38:04,937 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:38:04,937 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:38:04,941 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:38:04,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:38:02" (1/3) ... [2023-11-23 21:38:04,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7db38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:38:04, skipping insertion in model container [2023-11-23 21:38:04,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:02" (2/3) ... [2023-11-23 21:38:04,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7db38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:38:04, skipping insertion in model container [2023-11-23 21:38:04,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:38:04" (3/3) ... [2023-11-23 21:38:04,944 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-70.i [2023-11-23 21:38:04,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:38:04,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:38:05,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:38:05,047 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19eaa640, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:38:05,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:38:05,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 21:38:05,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 21:38:05,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:38:05,068 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:05,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:38:05,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:05,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1254920039, now seen corresponding path program 1 times [2023-11-23 21:38:05,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:38:05,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373817482] [2023-11-23 21:38:05,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:05,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:38:05,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:38:05,102 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:38:05,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:38:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:05,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:38:05,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:38:05,536 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-11-23 21:38:05,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:38:05,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:38:05,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373817482] [2023-11-23 21:38:05,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373817482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:05,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:05,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:05,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497527338] [2023-11-23 21:38:05,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:05,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:38:05,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:38:05,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:38:05,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:38:05,582 INFO L87 Difference]: Start difference. First operand has 39 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 21:38:06,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:38:06,587 INFO L93 Difference]: Finished difference Result 75 states and 124 transitions. [2023-11-23 21:38:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:38:06,604 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2023-11-23 21:38:06,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:38:06,613 INFO L225 Difference]: With dead ends: 75 [2023-11-23 21:38:06,613 INFO L226 Difference]: Without dead ends: 37 [2023-11-23 21:38:06,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:38:06,622 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:38:06,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 21:38:06,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-23 21:38:06,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-23 21:38:06,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 21:38:06,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2023-11-23 21:38:06,673 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 79 [2023-11-23 21:38:06,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:38:06,673 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2023-11-23 21:38:06,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 21:38:06,674 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2023-11-23 21:38:06,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 21:38:06,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:38:06,679 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:06,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:38:06,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:38:06,891 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:38:06,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:06,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1235641761, now seen corresponding path program 1 times [2023-11-23 21:38:06,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:38:06,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066608704] [2023-11-23 21:38:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:06,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:38:06,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:38:06,899 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:38:06,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:38:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:07,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:38:07,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:38:07,437 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 21:38:07,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:38:07,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:38:07,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066608704] [2023-11-23 21:38:07,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066608704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:07,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:07,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:38:07,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716510805] [2023-11-23 21:38:07,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:07,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:38:07,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:38:07,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:38:07,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:07,450 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:38:09,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:38:09,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:38:09,734 INFO L93 Difference]: Finished difference Result 73 states and 103 transitions. [2023-11-23 21:38:09,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:38:09,754 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), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 79 [2023-11-23 21:38:09,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:38:09,756 INFO L225 Difference]: With dead ends: 73 [2023-11-23 21:38:09,757 INFO L226 Difference]: Without dead ends: 37 [2023-11-23 21:38:09,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:38:09,759 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 1 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:38:09,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 87 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 21:38:09,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-23 21:38:09,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-23 21:38:09,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 21:38:09,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2023-11-23 21:38:09,771 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 79 [2023-11-23 21:38:09,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:38:09,773 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2023-11-23 21:38:09,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-23 21:38:09,774 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2023-11-23 21:38:09,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 21:38:09,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:38:09,777 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:09,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:38:09,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:38:09,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:38:09,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:09,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1235701343, now seen corresponding path program 1 times [2023-11-23 21:38:09,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:38:09,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401262273] [2023-11-23 21:38:09,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:09,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:38:09,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:38:09,990 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:38:10,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:38:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:10,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:38:10,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:38:11,300 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 48 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-23 21:38:11,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:38:11,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:38:11,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401262273] [2023-11-23 21:38:11,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401262273] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:38:11,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1853931163] [2023-11-23 21:38:11,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:11,506 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:38:11,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/cvc4 [2023-11-23 21:38:11,514 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:38:11,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c159f9e1-3fd2-4d2b-9829-24d3b5175c62/bin/uautomizer-verify-zZY32mL2XJ/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-23 21:38:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:12,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:38:12,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:38:13,478 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 48 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-23 21:38:13,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:38:14,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1853931163] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:38:14,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:38:14,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-11-23 21:38:14,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953951085] [2023-11-23 21:38:14,080 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:38:14,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 21:38:14,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:38:14,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 21:38:14,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:38:14,082 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12)