./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya --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 47e63b013ba5a4bad17f0c24c4a898ba0d6a9a1edaa8e8eb07c4e72f0000c552 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:51:23,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:51:23,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 06:51:23,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:51:23,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:51:23,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:51:23,211 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:51:23,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:51:23,212 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:51:23,213 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:51:23,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:51:23,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:51:23,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:51:23,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:51:23,216 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:51:23,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:51:23,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:51:23,218 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:51:23,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:51:23,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:51:23,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:51:23,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:51:23,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:51:23,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:51:23,223 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:51:23,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:51:23,224 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:51:23,224 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:51:23,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:51:23,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:51:23,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:51:23,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:51:23,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:51:23,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:51:23,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:51:23,227 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:51:23,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:51:23,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:51:23,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:51:23,228 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:51:23,228 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:51:23,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:51:23,229 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_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47e63b013ba5a4bad17f0c24c4a898ba0d6a9a1edaa8e8eb07c4e72f0000c552 [2023-11-29 06:51:23,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:51:23,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:51:23,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:51:23,511 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:51:23,512 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:51:23,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-27.i [2023-11-29 06:51:26,430 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:51:26,636 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:51:26,637 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-27.i [2023-11-29 06:51:26,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/data/489160e06/3061ec506e2f456dae84c253fac7b0e1/FLAGf1656c886 [2023-11-29 06:51:26,664 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/data/489160e06/3061ec506e2f456dae84c253fac7b0e1 [2023-11-29 06:51:26,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:51:26,669 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:51:26,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:51:26,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:51:26,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:51:26,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:51:26" (1/1) ... [2023-11-29 06:51:26,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29fac574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:26, skipping insertion in model container [2023-11-29 06:51:26,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:51:26" (1/1) ... [2023-11-29 06:51:26,714 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:51:26,894 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_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-27.i[915,928] [2023-11-29 06:51:26,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:51:26,954 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:51:26,970 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_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-27.i[915,928] [2023-11-29 06:51:26,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:51:27,015 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:51:27,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27 WrapperNode [2023-11-29 06:51:27,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:51:27,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:51:27,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:51:27,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:51:27,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (1/1) ... [2023-11-29 06:51:27,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (1/1) ... [2023-11-29 06:51:27,073 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-11-29 06:51:27,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:51:27,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:51:27,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:51:27,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:51:27,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (1/1) ... [2023-11-29 06:51:27,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (1/1) ... [2023-11-29 06:51:27,092 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (1/1) ... [2023-11-29 06:51:27,106 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:51:27,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (1/1) ... [2023-11-29 06:51:27,107 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (1/1) ... [2023-11-29 06:51:27,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (1/1) ... [2023-11-29 06:51:27,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (1/1) ... [2023-11-29 06:51:27,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (1/1) ... [2023-11-29 06:51:27,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (1/1) ... [2023-11-29 06:51:27,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:51:27,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:51:27,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:51:27,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:51:27,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (1/1) ... [2023-11-29 06:51:27,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:51:27,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:27,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:51:27,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:51:27,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:51:27,209 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:51:27,209 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:51:27,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:51:27,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:51:27,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:51:27,309 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:51:27,311 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:51:27,603 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:51:27,657 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:51:27,657 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:51:27,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:51:27 BoogieIcfgContainer [2023-11-29 06:51:27,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:51:27,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:51:27,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:51:27,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:51:27,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:51:26" (1/3) ... [2023-11-29 06:51:27,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab9acba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:51:27, skipping insertion in model container [2023-11-29 06:51:27,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:51:27" (2/3) ... [2023-11-29 06:51:27,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab9acba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:51:27, skipping insertion in model container [2023-11-29 06:51:27,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:51:27" (3/3) ... [2023-11-29 06:51:27,671 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-27.i [2023-11-29 06:51:27,694 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:51:27,695 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:51:27,770 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:51:27,778 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;@145db1aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:51:27,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:51:27,783 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 06:51:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 06:51:27,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:27,800 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:27,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:51:27,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:27,808 INFO L85 PathProgramCache]: Analyzing trace with hash 774957483, now seen corresponding path program 1 times [2023-11-29 06:51:27,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:27,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667900986] [2023-11-29 06:51:27,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:27,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:28,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:28,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667900986] [2023-11-29 06:51:28,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 06:51:28,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11988059] [2023-11-29 06:51:28,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:28,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:28,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:28,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:28,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:51:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:28,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:51:28,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-11-29 06:51:28,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:28,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11988059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:28,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:28,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:51:28,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609517959] [2023-11-29 06:51:28,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:28,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:51:28,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:28,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:51:28,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:51:28,285 INFO L87 Difference]: Start difference. First operand has 44 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 06:51:28,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:28,332 INFO L93 Difference]: Finished difference Result 87 states and 150 transitions. [2023-11-29 06:51:28,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:51:28,335 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 103 [2023-11-29 06:51:28,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:28,344 INFO L225 Difference]: With dead ends: 87 [2023-11-29 06:51:28,344 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 06:51:28,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:51:28,352 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:28,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:51:28,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 06:51:28,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-29 06:51:28,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 06:51:28,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 62 transitions. [2023-11-29 06:51:28,399 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 62 transitions. Word has length 103 [2023-11-29 06:51:28,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:28,400 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 62 transitions. [2023-11-29 06:51:28,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 06:51:28,401 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 62 transitions. [2023-11-29 06:51:28,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 06:51:28,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:28,405 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:28,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:28,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 06:51:28,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:51:28,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:28,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1463489641, now seen corresponding path program 1 times [2023-11-29 06:51:28,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:28,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277155714] [2023-11-29 06:51:28,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:28,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:28,672 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:28,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1412930544] [2023-11-29 06:51:28,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:28,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:28,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:28,674 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:28,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:51:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:28,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 06:51:28,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:02,884 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 310 proven. 48 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 06:52:02,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:53:21,029 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 45 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2023-11-29 06:53:21,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:53:21,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277155714] [2023-11-29 06:53:21,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:53:21,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412930544] [2023-11-29 06:53:21,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412930544] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:53:21,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:53:21,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 28 [2023-11-29 06:53:21,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405282400] [2023-11-29 06:53:21,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:53:21,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 06:53:21,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:53:21,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 06:53:21,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=521, Unknown=12, NotChecked=0, Total=756 [2023-11-29 06:53:21,035 INFO L87 Difference]: Start difference. First operand 42 states and 62 transitions. Second operand has 28 states, 27 states have (on average 2.185185185185185) internal successors, (59), 26 states have internal predecessors, (59), 6 states have call successors, (34), 4 states have call predecessors, (34), 8 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-29 06:53:23,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:23,476 INFO L93 Difference]: Finished difference Result 169 states and 222 transitions. [2023-11-29 06:53:23,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-29 06:53:23,477 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.185185185185185) internal successors, (59), 26 states have internal predecessors, (59), 6 states have call successors, (34), 4 states have call predecessors, (34), 8 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 103 [2023-11-29 06:53:23,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:23,482 INFO L225 Difference]: With dead ends: 169 [2023-11-29 06:53:23,483 INFO L226 Difference]: Without dead ends: 167 [2023-11-29 06:53:23,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1150 ImplicationChecksByTransitivity, 50.1s TimeCoverageRelationStatistics Valid=880, Invalid=2300, Unknown=12, NotChecked=0, Total=3192 [2023-11-29 06:53:23,486 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 351 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:23,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 264 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:53:23,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-11-29 06:53:23,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 114. [2023-11-29 06:53:23,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 68 states have internal predecessors, (80), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 06:53:23,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 164 transitions. [2023-11-29 06:53:23,529 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 164 transitions. Word has length 103 [2023-11-29 06:53:23,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:23,530 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 164 transitions. [2023-11-29 06:53:23,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.185185185185185) internal successors, (59), 26 states have internal predecessors, (59), 6 states have call successors, (34), 4 states have call predecessors, (34), 8 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-29 06:53:23,531 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 164 transitions. [2023-11-29 06:53:23,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 06:53:23,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:23,534 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:53:23,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:53:23,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:23,735 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:53:23,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:23,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1520747943, now seen corresponding path program 1 times [2023-11-29 06:53:23,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:53:23,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137936223] [2023-11-29 06:53:23,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:23,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:53:23,775 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:53:23,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273553259] [2023-11-29 06:53:23,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:23,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:23,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:53:23,778 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:53:23,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:53:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:24,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 06:53:24,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:59,725 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 308 proven. 33 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-11-29 06:53:59,725 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:57:29,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:29,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137936223] [2023-11-29 06:57:29,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:57:29,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273553259] [2023-11-29 06:57:29,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273553259] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:57:29,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:57:29,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 06:57:29,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713345681] [2023-11-29 06:57:29,066 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:57:29,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 06:57:29,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:29,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 06:57:29,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=334, Unknown=3, NotChecked=0, Total=462 [2023-11-29 06:57:29,069 INFO L87 Difference]: Start difference. First operand 114 states and 164 transitions. Second operand has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 15 states have internal predecessors, (36), 4 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 06:57:34,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:34,385 INFO L93 Difference]: Finished difference Result 158 states and 206 transitions. [2023-11-29 06:57:34,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 06:57:34,385 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 15 states have internal predecessors, (36), 4 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 103 [2023-11-29 06:57:34,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:34,389 INFO L225 Difference]: With dead ends: 158 [2023-11-29 06:57:34,389 INFO L226 Difference]: Without dead ends: 156 [2023-11-29 06:57:34,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 34.9s TimeCoverageRelationStatistics Valid=234, Invalid=633, Unknown=3, NotChecked=0, Total=870 [2023-11-29 06:57:34,391 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 77 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:34,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 238 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:57:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-29 06:57:34,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 134. [2023-11-29 06:57:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 82 states have (on average 1.170731707317073) internal successors, (96), 83 states have internal predecessors, (96), 43 states have call successors, (43), 8 states have call predecessors, (43), 8 states have return successors, (43), 42 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-29 06:57:34,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 182 transitions. [2023-11-29 06:57:34,414 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 182 transitions. Word has length 103 [2023-11-29 06:57:34,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:34,415 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 182 transitions. [2023-11-29 06:57:34,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 15 states have internal predecessors, (36), 4 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 06:57:34,416 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 182 transitions. [2023-11-29 06:57:34,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 06:57:34,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:34,417 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:34,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:57:34,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:34,618 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:57:34,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:34,619 INFO L85 PathProgramCache]: Analyzing trace with hash 654143015, now seen corresponding path program 1 times [2023-11-29 06:57:34,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:34,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555667537] [2023-11-29 06:57:34,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:34,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:34,647 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:57:34,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726635120] [2023-11-29 06:57:34,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:34,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:34,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:34,649 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:34,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:57:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:34,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:57:34,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 06:57:34,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:57:34,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:34,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555667537] [2023-11-29 06:57:34,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:57:34,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726635120] [2023-11-29 06:57:34,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726635120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:57:34,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:57:34,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:57:34,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219310197] [2023-11-29 06:57:34,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:57:34,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:57:34,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:34,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:57:34,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:57:34,874 INFO L87 Difference]: Start difference. First operand 134 states and 182 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-29 06:57:35,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:35,076 INFO L93 Difference]: Finished difference Result 276 states and 369 transitions. [2023-11-29 06:57:35,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:57:35,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 103 [2023-11-29 06:57:35,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:35,081 INFO L225 Difference]: With dead ends: 276 [2023-11-29 06:57:35,081 INFO L226 Difference]: Without dead ends: 143 [2023-11-29 06:57:35,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:57:35,083 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 59 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:35,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 223 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:57:35,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-29 06:57:35,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 128. [2023-11-29 06:57:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 76 states have (on average 1.131578947368421) internal successors, (86), 77 states have internal predecessors, (86), 43 states have call successors, (43), 8 states have call predecessors, (43), 8 states have return successors, (43), 42 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-29 06:57:35,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 172 transitions. [2023-11-29 06:57:35,105 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 172 transitions. Word has length 103 [2023-11-29 06:57:35,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:35,106 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 172 transitions. [2023-11-29 06:57:35,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-29 06:57:35,106 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 172 transitions. [2023-11-29 06:57:35,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 06:57:35,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:35,108 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:35,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:57:35,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:35,309 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:57:35,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:35,309 INFO L85 PathProgramCache]: Analyzing trace with hash -111015961, now seen corresponding path program 1 times [2023-11-29 06:57:35,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:35,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711280490] [2023-11-29 06:57:35,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:35,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:35,333 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:57:35,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654599271] [2023-11-29 06:57:35,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:35,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:35,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:35,335 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:35,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:57:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:35,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:57:35,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:35,588 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 06:57:35,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:57:35,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:35,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711280490] [2023-11-29 06:57:35,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:57:35,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654599271] [2023-11-29 06:57:35,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654599271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:57:35,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:57:35,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:57:35,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735166998] [2023-11-29 06:57:35,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:57:35,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:57:35,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:35,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:57:35,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:57:35,592 INFO L87 Difference]: Start difference. First operand 128 states and 172 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-29 06:57:35,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:35,722 INFO L93 Difference]: Finished difference Result 188 states and 246 transitions. [2023-11-29 06:57:35,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:57:35,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 104 [2023-11-29 06:57:35,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:35,724 INFO L225 Difference]: With dead ends: 188 [2023-11-29 06:57:35,724 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 06:57:35,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:57:35,726 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 27 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:35,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 65 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:57:35,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 06:57:35,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 06:57:35,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:57:35,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 06:57:35,728 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2023-11-29 06:57:35,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:35,729 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:57:35,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-29 06:57:35,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 06:57:35,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 06:57:35,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 06:57:35,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:57:35,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:35,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 06:57:36,646 INFO L899 garLoopResultBuilder]: For program point L85(lines 60 86) no Hoare annotation was computed. [2023-11-29 06:57:36,646 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 58) no Hoare annotation was computed. [2023-11-29 06:57:36,646 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-29 06:57:36,647 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-29 06:57:36,647 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-11-29 06:57:36,647 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-29 06:57:36,647 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256))) (and (<= 127 .cse0) (<= .cse0 254) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,647 INFO L895 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256))) (and (<= 127 .cse0) (<= 63 (mod ~var_1_11~0 256)) (<= .cse0 254) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,648 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-11-29 06:57:36,648 INFO L895 garLoopResultBuilder]: At program point L65(line 65) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,648 INFO L895 garLoopResultBuilder]: At program point L65-1(line 65) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,648 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-29 06:57:36,648 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 57) no Hoare annotation was computed. [2023-11-29 06:57:36,648 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-11-29 06:57:36,649 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 49) no Hoare annotation was computed. [2023-11-29 06:57:36,649 INFO L899 garLoopResultBuilder]: For program point L45-2(lines 45 49) no Hoare annotation was computed. [2023-11-29 06:57:36,649 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (let ((.cse0 (mod ~var_1_11~0 256))) (and (<= 63 .cse0) (<= .cse0 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,649 INFO L895 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: (and (<= 127 (mod ~var_1_10~0 256)) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0)) [2023-11-29 06:57:36,649 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 59) no Hoare annotation was computed. [2023-11-29 06:57:36,649 INFO L899 garLoopResultBuilder]: For program point L66(line 66) no Hoare annotation was computed. [2023-11-29 06:57:36,649 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 06:57:36,650 INFO L895 garLoopResultBuilder]: At program point L99-3(lines 99 105) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,650 INFO L899 garLoopResultBuilder]: For program point L99-4(lines 99 105) no Hoare annotation was computed. [2023-11-29 06:57:36,650 INFO L895 garLoopResultBuilder]: At program point L62(line 62) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,650 INFO L895 garLoopResultBuilder]: At program point L62-1(line 62) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,650 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,650 INFO L895 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,650 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-11-29 06:57:36,651 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 06:57:36,651 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,651 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,651 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2023-11-29 06:57:36,651 INFO L895 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,651 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,652 INFO L895 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,652 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-11-29 06:57:36,652 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 43) no Hoare annotation was computed. [2023-11-29 06:57:36,652 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 43) no Hoare annotation was computed. [2023-11-29 06:57:36,652 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,652 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (let ((.cse0 (mod ~var_1_10~0 256)) (.cse1 (mod ~var_1_11~0 256))) (and (<= 127 .cse0) (<= 63 .cse1) (<= .cse0 254) (<= .cse1 127) (<= (mod ~var_1_12~0 256) 127) (<= (+ 128 ~var_1_13~0) 0) (<= ~last_1_var_1_13~0 ~var_1_13~0))) [2023-11-29 06:57:36,653 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-29 06:57:36,653 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-29 06:57:36,653 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-29 06:57:36,653 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-29 06:57:36,657 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-29 06:57:36,659 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:57:36,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:57:36 BoogieIcfgContainer [2023-11-29 06:57:36,670 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:57:36,670 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:57:36,670 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:57:36,671 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:57:36,671 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:51:27" (3/4) ... [2023-11-29 06:57:36,673 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 06:57:36,676 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-29 06:57:36,682 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-29 06:57:36,683 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 06:57:36,683 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 06:57:36,684 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:57:36,784 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:57:36,785 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 06:57:36,785 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:57:36,786 INFO L158 Benchmark]: Toolchain (without parser) took 370116.50ms. Allocated memory was 155.2MB in the beginning and 752.9MB in the end (delta: 597.7MB). Free memory was 109.4MB in the beginning and 518.0MB in the end (delta: -408.6MB). Peak memory consumption was 192.2MB. Max. memory is 16.1GB. [2023-11-29 06:57:36,786 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 155.2MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:57:36,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.22ms. Allocated memory is still 155.2MB. Free memory was 109.0MB in the beginning and 96.9MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 06:57:36,787 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.74ms. Allocated memory is still 155.2MB. Free memory was 96.9MB in the beginning and 94.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:57:36,788 INFO L158 Benchmark]: Boogie Preprocessor took 50.25ms. Allocated memory is still 155.2MB. Free memory was 94.3MB in the beginning and 91.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:57:36,788 INFO L158 Benchmark]: RCFGBuilder took 533.09ms. Allocated memory is still 155.2MB. Free memory was 91.0MB in the beginning and 72.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 06:57:36,789 INFO L158 Benchmark]: TraceAbstraction took 369007.55ms. Allocated memory was 155.2MB in the beginning and 752.9MB in the end (delta: 597.7MB). Free memory was 71.3MB in the beginning and 524.3MB in the end (delta: -453.1MB). Peak memory consumption was 146.1MB. Max. memory is 16.1GB. [2023-11-29 06:57:36,789 INFO L158 Benchmark]: Witness Printer took 114.97ms. Allocated memory is still 752.9MB. Free memory was 524.3MB in the beginning and 518.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 06:57:36,791 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 155.2MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.22ms. Allocated memory is still 155.2MB. Free memory was 109.0MB in the beginning and 96.9MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.74ms. Allocated memory is still 155.2MB. Free memory was 96.9MB in the beginning and 94.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.25ms. Allocated memory is still 155.2MB. Free memory was 94.3MB in the beginning and 91.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 533.09ms. Allocated memory is still 155.2MB. Free memory was 91.0MB in the beginning and 72.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 369007.55ms. Allocated memory was 155.2MB in the beginning and 752.9MB in the end (delta: 597.7MB). Free memory was 71.3MB in the beginning and 524.3MB in the end (delta: -453.1MB). Peak memory consumption was 146.1MB. Max. memory is 16.1GB. * Witness Printer took 114.97ms. Allocated memory is still 752.9MB. Free memory was 524.3MB in the beginning and 518.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 368.9s, OverallIterations: 5, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 533 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 514 mSDsluCounter, 849 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 619 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1155 IncrementalHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 230 mSDtfsCounter, 1155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 682 GetRequests, 587 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1354 ImplicationChecksByTransitivity, 85.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=3, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 90 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 138 PreInvPairs, 156 NumberOfFragments, 548 HoareAnnotationTreeSize, 138 FomulaSimplifications, 981 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 1097 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 357.6s InterpolantComputationTime, 619 NumberOfCodeBlocks, 619 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 613 ConstructedInterpolants, 5 QuantifiedInterpolants, 5069 SizeOfPredicates, 54 NumberOfNonLiveVariables, 1248 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 3138/3264 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: (((((((127 <= (var_1_10 % 256)) && (63 <= (var_1_11 % 256))) && ((var_1_10 % 256) <= 254)) && ((var_1_11 % 256) <= 127)) && ((var_1_12 % 256) <= 127)) && ((128 + var_1_13) <= 0)) && (last_1_var_1_13 <= var_1_13)) RESULT: Ultimate proved your program to be correct! [2023-11-29 06:57:37,003 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-11-29 06:57:37,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72cb4f74-8dbd-47f2-afb7-99f0341c00f0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE