./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu --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 b55245fdfeda07d3cc16ccf7855a16dd0888b0e85bdd23f4fc1ff2e8704085c2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:06:58,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:06:58,622 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:06:58,632 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:06:58,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:06:58,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:06:58,675 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:06:58,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:06:58,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:06:58,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:06:58,685 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:06:58,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:06:58,686 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:06:58,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:06:58,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:06:58,689 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:06:58,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:06:58,689 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:06:58,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:06:58,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:06:58,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:06:58,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:06:58,692 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:06:58,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:06:58,693 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:06:58,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:06:58,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:06:58,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:06:58,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:58,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:06:58,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:06:58,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:06:58,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:06:58,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:06:58,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:06:58,698 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:06:58,699 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:06:58,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:06:58,699 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:06:58,699 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_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b55245fdfeda07d3cc16ccf7855a16dd0888b0e85bdd23f4fc1ff2e8704085c2 [2023-11-19 08:06:58,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:59,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:59,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:59,035 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:59,035 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:59,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i [2023-11-19 08:07:02,235 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:07:02,472 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:07:02,472 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i [2023-11-19 08:07:02,487 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/data/cfeb7826a/6a6ff4fec5834ccb9be0ceac50471a64/FLAG124d6bbe5 [2023-11-19 08:07:02,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/data/cfeb7826a/6a6ff4fec5834ccb9be0ceac50471a64 [2023-11-19 08:07:02,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:07:02,519 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:07:02,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:07:02,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:07:02,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:07:02,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e43779d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02, skipping insertion in model container [2023-11-19 08:07:02,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,573 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:07:02,748 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_c8aa95ca-9634-497c-bf93-8318d997983c/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i[915,928] [2023-11-19 08:07:02,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:07:02,817 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:07:02,830 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_c8aa95ca-9634-497c-bf93-8318d997983c/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i[915,928] [2023-11-19 08:07:02,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:07:02,875 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:07:02,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02 WrapperNode [2023-11-19 08:07:02,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:07:02,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:07:02,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:07:02,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:07:02,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,921 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2023-11-19 08:07:02,922 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:07:02,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:07:02,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:07:02,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:07:02,933 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:07:02,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:07:02,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:07:02,959 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:07:02,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02" (1/1) ... [2023-11-19 08:07:02,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:07:03,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:07:03,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:07:03,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:07:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:07:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:07:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:07:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:07:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:07:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:07:03,153 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:07:03,155 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:07:03,587 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:07:03,597 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:07:03,603 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:07:03,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:07:03 BoogieIcfgContainer [2023-11-19 08:07:03,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:07:03,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:07:03,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:07:03,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:07:03,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:07:02" (1/3) ... [2023-11-19 08:07:03,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74479e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:07:03, skipping insertion in model container [2023-11-19 08:07:03,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:02" (2/3) ... [2023-11-19 08:07:03,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74479e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:07:03, skipping insertion in model container [2023-11-19 08:07:03,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:07:03" (3/3) ... [2023-11-19 08:07:03,624 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-85.i [2023-11-19 08:07:03,644 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:07:03,644 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:07:03,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:07:03,702 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;@7aa91fcb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:07:03,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:07:03,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 43 states have (on average 1.441860465116279) internal successors, (62), 44 states have internal predecessors, (62), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 08:07:03,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 08:07:03,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:03,730 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:03,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:07:03,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:03,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1691555404, now seen corresponding path program 1 times [2023-11-19 08:07:03,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:03,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775366457] [2023-11-19 08:07:03,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:03,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:03,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:07:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 08:07:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:07:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 08:07:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 08:07:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 08:07:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 08:07:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:07:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 08:07:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 08:07:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 08:07:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 08:07:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 08:07:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 08:07:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 08:07:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 08:07:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-19 08:07:04,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:04,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775366457] [2023-11-19 08:07:04,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775366457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:04,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:04,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:07:04,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120695240] [2023-11-19 08:07:04,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:04,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:07:04,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:04,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:07:04,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:07:04,209 INFO L87 Difference]: Start difference. First operand has 62 states, 43 states have (on average 1.441860465116279) internal successors, (62), 44 states have internal predecessors, (62), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 08:07:04,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:07:04,248 INFO L93 Difference]: Finished difference Result 117 states and 198 transitions. [2023-11-19 08:07:04,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:07:04,252 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 104 [2023-11-19 08:07:04,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:07:04,263 INFO L225 Difference]: With dead ends: 117 [2023-11-19 08:07:04,263 INFO L226 Difference]: Without dead ends: 58 [2023-11-19 08:07:04,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:07:04,275 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:07:04,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:07:04,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-19 08:07:04,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-19 08:07:04,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 08:07:04,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 87 transitions. [2023-11-19 08:07:04,352 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 87 transitions. Word has length 104 [2023-11-19 08:07:04,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:07:04,353 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 87 transitions. [2023-11-19 08:07:04,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 08:07:04,354 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 87 transitions. [2023-11-19 08:07:04,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 08:07:04,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:04,360 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:04,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:07:04,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:07:04,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:04,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1055881104, now seen corresponding path program 1 times [2023-11-19 08:07:04,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:04,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131718460] [2023-11-19 08:07:04,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:04,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:07:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 08:07:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:07:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 08:07:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 08:07:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 08:07:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 08:07:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:07:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 08:07:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 08:07:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 08:07:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 08:07:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 08:07:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 08:07:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 08:07:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 08:07:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,463 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-19 08:07:10,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:10,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131718460] [2023-11-19 08:07:10,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131718460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:10,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:10,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:07:10,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48097806] [2023-11-19 08:07:10,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:10,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:07:10,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:10,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:07:10,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:07:10,475 INFO L87 Difference]: Start difference. First operand 58 states and 87 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 08:07:11,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:07:11,279 INFO L93 Difference]: Finished difference Result 165 states and 245 transitions. [2023-11-19 08:07:11,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:07:11,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2023-11-19 08:07:11,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:07:11,284 INFO L225 Difference]: With dead ends: 165 [2023-11-19 08:07:11,285 INFO L226 Difference]: Without dead ends: 110 [2023-11-19 08:07:11,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:07:11,287 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 92 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:07:11,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 221 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 08:07:11,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-19 08:07:11,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 94. [2023-11-19 08:07:11,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 08:07:11,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 142 transitions. [2023-11-19 08:07:11,323 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 142 transitions. Word has length 104 [2023-11-19 08:07:11,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:07:11,324 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 142 transitions. [2023-11-19 08:07:11,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 08:07:11,324 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 142 transitions. [2023-11-19 08:07:11,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-19 08:07:11,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:11,327 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:11,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:07:11,327 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:07:11,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:11,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1393853417, now seen corresponding path program 1 times [2023-11-19 08:07:11,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:11,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910574993] [2023-11-19 08:07:11,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:11,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:07:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 08:07:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:07:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 08:07:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 08:07:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 08:07:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 08:07:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:07:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 08:07:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 08:07:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 08:07:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 08:07:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 08:07:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 08:07:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 08:07:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 08:07:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:16,789 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-19 08:07:16,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:16,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910574993] [2023-11-19 08:07:16,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910574993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:16,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:16,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:07:16,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791010596] [2023-11-19 08:07:16,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:16,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:07:16,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:16,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:07:16,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:07:16,793 INFO L87 Difference]: Start difference. First operand 94 states and 142 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 08:07:18,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:07:18,092 INFO L93 Difference]: Finished difference Result 247 states and 365 transitions. [2023-11-19 08:07:18,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 08:07:18,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2023-11-19 08:07:18,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:07:18,096 INFO L225 Difference]: With dead ends: 247 [2023-11-19 08:07:18,096 INFO L226 Difference]: Without dead ends: 156 [2023-11-19 08:07:18,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:07:18,099 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 139 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:07:18,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 306 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 08:07:18,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-19 08:07:18,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 94. [2023-11-19 08:07:18,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 08:07:18,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 142 transitions. [2023-11-19 08:07:18,117 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 142 transitions. Word has length 105 [2023-11-19 08:07:18,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:07:18,118 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 142 transitions. [2023-11-19 08:07:18,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 08:07:18,118 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 142 transitions. [2023-11-19 08:07:18,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-19 08:07:18,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:18,121 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:18,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:07:18,121 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:07:18,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:18,122 INFO L85 PathProgramCache]: Analyzing trace with hash 805554373, now seen corresponding path program 1 times [2023-11-19 08:07:18,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:18,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601160225] [2023-11-19 08:07:18,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:18,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:07:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 08:07:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:07:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 08:07:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 08:07:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 08:07:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 08:07:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:07:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 08:07:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 08:07:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 08:07:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 08:07:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 08:07:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 08:07:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 08:07:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 08:07:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:18,231 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-19 08:07:18,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:18,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601160225] [2023-11-19 08:07:18,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601160225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:18,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:18,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:07:18,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552373326] [2023-11-19 08:07:18,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:18,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:07:18,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:18,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:07:18,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:07:18,239 INFO L87 Difference]: Start difference. First operand 94 states and 142 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 08:07:18,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:07:18,297 INFO L93 Difference]: Finished difference Result 226 states and 335 transitions. [2023-11-19 08:07:18,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:07:18,298 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2023-11-19 08:07:18,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:07:18,306 INFO L225 Difference]: With dead ends: 226 [2023-11-19 08:07:18,306 INFO L226 Difference]: Without dead ends: 135 [2023-11-19 08:07:18,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:07:18,320 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 51 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:07:18,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 183 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:07:18,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-19 08:07:18,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 132. [2023-11-19 08:07:18,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 101 states have (on average 1.3366336633663367) internal successors, (135), 103 states have internal predecessors, (135), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-19 08:07:18,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 187 transitions. [2023-11-19 08:07:18,362 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 187 transitions. Word has length 105 [2023-11-19 08:07:18,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:07:18,363 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 187 transitions. [2023-11-19 08:07:18,364 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 08:07:18,364 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 187 transitions. [2023-11-19 08:07:18,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-19 08:07:18,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:18,371 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:18,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:07:18,372 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:07:18,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:18,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1169526347, now seen corresponding path program 1 times [2023-11-19 08:07:18,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:18,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866693683] [2023-11-19 08:07:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:18,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:07:18,437 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:07:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:07:18,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:07:18,517 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:07:18,518 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:07:18,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:07:18,524 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 08:07:18,528 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:07:18,613 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-19 08:07:18,614 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite15 could not be translated [2023-11-19 08:07:18,615 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-19 08:07:18,616 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-19 08:07:18,617 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite15 could not be translated [2023-11-19 08:07:18,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:07:18 BoogieIcfgContainer [2023-11-19 08:07:18,647 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:07:18,648 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:07:18,648 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:07:18,648 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:07:18,649 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:07:03" (3/4) ... [2023-11-19 08:07:18,651 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:07:18,652 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:07:18,653 INFO L158 Benchmark]: Toolchain (without parser) took 16133.57ms. Allocated memory was 180.4MB in the beginning and 432.0MB in the end (delta: 251.7MB). Free memory was 143.7MB in the beginning and 285.0MB in the end (delta: -141.3MB). Peak memory consumption was 112.4MB. Max. memory is 16.1GB. [2023-11-19 08:07:18,653 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:07:18,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.48ms. Allocated memory is still 180.4MB. Free memory was 143.7MB in the beginning and 131.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:07:18,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.62ms. Allocated memory is still 180.4MB. Free memory was 131.1MB in the beginning and 129.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:07:18,654 INFO L158 Benchmark]: Boogie Preprocessor took 35.44ms. Allocated memory is still 180.4MB. Free memory was 129.0MB in the beginning and 127.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:07:18,654 INFO L158 Benchmark]: RCFGBuilder took 651.90ms. Allocated memory is still 180.4MB. Free memory was 127.7MB in the beginning and 111.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 08:07:18,655 INFO L158 Benchmark]: TraceAbstraction took 15032.26ms. Allocated memory was 180.4MB in the beginning and 432.0MB in the end (delta: 251.7MB). Free memory was 110.4MB in the beginning and 285.0MB in the end (delta: -174.5MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. [2023-11-19 08:07:18,655 INFO L158 Benchmark]: Witness Printer took 4.20ms. Allocated memory is still 432.0MB. Free memory is still 285.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:07:18,657 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.48ms. Allocated memory is still 180.4MB. Free memory was 143.7MB in the beginning and 131.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.62ms. Allocated memory is still 180.4MB. Free memory was 131.1MB in the beginning and 129.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.44ms. Allocated memory is still 180.4MB. Free memory was 129.0MB in the beginning and 127.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 651.90ms. Allocated memory is still 180.4MB. Free memory was 127.7MB in the beginning and 111.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15032.26ms. Allocated memory was 180.4MB in the beginning and 432.0MB in the end (delta: 251.7MB). Free memory was 110.4MB in the beginning and 285.0MB in the end (delta: -174.5MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. * Witness Printer took 4.20ms. Allocated memory is still 432.0MB. Free memory is still 285.0MB. 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~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite15 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 100. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 16; [L23] unsigned char var_1_2 = 0; [L24] signed long int var_1_3 = -64; [L25] signed long int var_1_4 = -4; [L26] unsigned char var_1_5 = 1; [L27] unsigned char var_1_6 = 0; [L28] signed char var_1_7 = 32; [L29] signed char var_1_8 = -8; [L30] signed char var_1_9 = 10; [L31] double var_1_10 = 1.6; [L32] double var_1_11 = 127.25; [L33] double var_1_12 = 2.5; VAL [isInitial=0, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=0, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] FCALL updateLastVariables() [L108] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L72] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L73] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L73] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L74] var_1_3 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_3 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L75] RET assume_abort_if_not(var_1_3 >= -1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L76] CALL assume_abort_if_not(var_1_3 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L76] RET assume_abort_if_not(var_1_3 <= 1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L77] var_1_4 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_4 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L78] RET assume_abort_if_not(var_1_4 >= -1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L79] CALL assume_abort_if_not(var_1_4 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L79] RET assume_abort_if_not(var_1_4 <= 1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L80] var_1_5 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L81] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L82] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L82] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L83] var_1_6 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L84] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L85] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L85] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L86] var_1_8 = __VERIFIER_nondet_char() [L87] CALL assume_abort_if_not(var_1_8 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=10] [L87] RET assume_abort_if_not(var_1_8 >= -127) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=10] [L88] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=10] [L88] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=10] [L89] var_1_9 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_9 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L90] RET assume_abort_if_not(var_1_9 >= -127) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L91] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L91] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L92] var_1_11 = __VERIFIER_nondet_double() [L93] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && 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_10=8/5, var_1_11=262, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=262, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L93] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8/5, var_1_11=262, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L94] var_1_12 = __VERIFIER_nondet_double() [L95] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=262, var_1_12=262, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8/5, var_1_11=262, var_1_12=262, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L95] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8/5, var_1_11=262, var_1_12=262, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L108] RET updateVariables() [L109] CALL step() [L37] signed long int stepLocal_0 = var_1_3; VAL [isInitial=1, stepLocal_0=0, var_1_10=8/5, var_1_11=262, var_1_12=262, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L38] COND FALSE !(\read(var_1_6)) VAL [isInitial=1, stepLocal_0=0, var_1_10=8/5, var_1_11=262, var_1_12=262, var_1_1=16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L43] COND TRUE \read(var_1_2) [L44] var_1_1 = (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))) VAL [isInitial=1, stepLocal_0=0, var_1_10=8/5, var_1_11=262, var_1_12=262, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L56] unsigned char stepLocal_2 = var_1_5; [L57] signed char stepLocal_1 = var_1_9; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=1, var_1_10=8/5, var_1_11=262, var_1_12=262, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L58] COND TRUE ! var_1_6 [L59] var_1_10 = ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=1, var_1_10=262, var_1_11=262, var_1_12=262, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) VAL [isInitial=1, var_1_10=262, var_1_11=262, var_1_12=262, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L100] EXPR (! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1) VAL [isInitial=1, var_1_10=262, var_1_11=262, var_1_12=262, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L100] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) VAL [isInitial=1, var_1_10=262, var_1_11=262, var_1_12=262, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L100-L101] return ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=262, var_1_11=262, var_1_12=262, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=262, var_1_11=262, var_1_12=262, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=-1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.8s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 282 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 282 mSDsluCounter, 797 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 423 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 374 IncrementalHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 374 mSDtfsCounter, 374 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=4, InterpolantAutomatonStates: 23, 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, 4 MinimizatonAttempts, 81 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 524 NumberOfCodeBlocks, 524 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 414 ConstructedInterpolants, 0 QuantifiedInterpolants, 3204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 1920/1920 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 [2023-11-19 08:07:18,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu --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 b55245fdfeda07d3cc16ccf7855a16dd0888b0e85bdd23f4fc1ff2e8704085c2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:07:21,434 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:07:21,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 08:07:21,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:07:21,578 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:07:21,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:07:21,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:07:21,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:07:21,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:07:21,631 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:07:21,631 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:07:21,632 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:07:21,632 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:07:21,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:07:21,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:07:21,635 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:07:21,635 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:07:21,636 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:07:21,636 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:07:21,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:07:21,637 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:07:21,637 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:07:21,638 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 08:07:21,638 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 08:07:21,638 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:07:21,639 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:07:21,639 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:07:21,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:07:21,640 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:07:21,640 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:07:21,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:07:21,642 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:07:21,642 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:07:21,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:07:21,643 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 08:07:21,643 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 08:07:21,643 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:07:21,643 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:07:21,644 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:07:21,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:07:21,645 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 08:07:21,645 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:07:21,645 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_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b55245fdfeda07d3cc16ccf7855a16dd0888b0e85bdd23f4fc1ff2e8704085c2 [2023-11-19 08:07:22,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:07:22,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:07:22,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:07:22,082 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:07:22,082 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:07:22,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i [2023-11-19 08:07:25,451 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:07:25,788 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:07:25,788 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i [2023-11-19 08:07:25,801 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/data/b0027184f/af39b1ebc38046b5a712803ce44de66a/FLAG1dee7b4b7 [2023-11-19 08:07:25,816 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/data/b0027184f/af39b1ebc38046b5a712803ce44de66a [2023-11-19 08:07:25,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:07:25,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:07:25,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:07:25,821 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:07:25,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:07:25,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:07:25" (1/1) ... [2023-11-19 08:07:25,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6889c734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:25, skipping insertion in model container [2023-11-19 08:07:25,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:07:25" (1/1) ... [2023-11-19 08:07:25,867 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:07:26,022 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_c8aa95ca-9634-497c-bf93-8318d997983c/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i[915,928] [2023-11-19 08:07:26,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:07:26,086 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:07:26,101 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_c8aa95ca-9634-497c-bf93-8318d997983c/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-85.i[915,928] [2023-11-19 08:07:26,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:07:26,183 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:07:26,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26 WrapperNode [2023-11-19 08:07:26,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:07:26,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:07:26,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:07:26,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:07:26,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26" (1/1) ... [2023-11-19 08:07:26,226 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26" (1/1) ... [2023-11-19 08:07:26,253 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2023-11-19 08:07:26,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:07:26,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:07:26,254 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:07:26,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:07:26,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26" (1/1) ... [2023-11-19 08:07:26,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26" (1/1) ... [2023-11-19 08:07:26,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26" (1/1) ... [2023-11-19 08:07:26,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26" (1/1) ... [2023-11-19 08:07:26,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26" (1/1) ... [2023-11-19 08:07:26,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26" (1/1) ... [2023-11-19 08:07:26,312 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26" (1/1) ... [2023-11-19 08:07:26,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26" (1/1) ... [2023-11-19 08:07:26,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:07:26,330 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:07:26,330 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:07:26,330 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:07:26,331 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26" (1/1) ... [2023-11-19 08:07:26,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:07:26,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:07:26,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:07:26,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:07:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:07:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:07:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:07:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:07:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:07:26,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:07:26,549 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:07:26,551 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:07:26,888 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:07:26,896 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:07:26,897 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:07:26,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:07:26 BoogieIcfgContainer [2023-11-19 08:07:26,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:07:26,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:07:26,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:07:26,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:07:26,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:07:25" (1/3) ... [2023-11-19 08:07:26,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6393a6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:07:26, skipping insertion in model container [2023-11-19 08:07:26,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:07:26" (2/3) ... [2023-11-19 08:07:26,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6393a6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:07:26, skipping insertion in model container [2023-11-19 08:07:26,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:07:26" (3/3) ... [2023-11-19 08:07:26,926 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-85.i [2023-11-19 08:07:26,946 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:07:26,947 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:07:26,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:07:27,005 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;@cc8622c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:07:27,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:07:27,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 08:07:27,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-19 08:07:27,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:27,033 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:27,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:07:27,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:27,039 INFO L85 PathProgramCache]: Analyzing trace with hash 759488486, now seen corresponding path program 1 times [2023-11-19 08:07:27,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:07:27,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740433766] [2023-11-19 08:07:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:27,051 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 [2023-11-19 08:07:27,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:07:27,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:07:27,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:07:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:27,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 08:07:27,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:07:27,404 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-19 08:07:27,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:07:27,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:07:27,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740433766] [2023-11-19 08:07:27,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [740433766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:27,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:27,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:07:27,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432553556] [2023-11-19 08:07:27,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:27,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:07:27,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:07:27,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:07:27,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:07:27,447 INFO L87 Difference]: Start difference. First operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 08:07:27,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:07:27,476 INFO L93 Difference]: Finished difference Result 99 states and 168 transitions. [2023-11-19 08:07:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:07:27,479 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2023-11-19 08:07:27,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:07:27,487 INFO L225 Difference]: With dead ends: 99 [2023-11-19 08:07:27,487 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 08:07:27,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:07:27,495 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:07:27,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:07:27,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 08:07:27,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-19 08:07:27,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 08:07:27,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2023-11-19 08:07:27,540 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 102 [2023-11-19 08:07:27,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:07:27,541 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2023-11-19 08:07:27,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 08:07:27,541 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2023-11-19 08:07:27,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-19 08:07:27,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:07:27,545 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:27,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:07:27,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:07:27,761 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:07:27,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:27,762 INFO L85 PathProgramCache]: Analyzing trace with hash 532217250, now seen corresponding path program 1 times [2023-11-19 08:07:27,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:07:27,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078397853] [2023-11-19 08:07:27,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:27,764 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 [2023-11-19 08:07:27,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:07:27,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:07:27,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8aa95ca-9634-497c-bf93-8318d997983c/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:07:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:27,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 08:07:27,986 INFO L285 TraceCheckSpWp]: Computing forward predicates...