./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl --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 c2c331e2f68e9d93ed0b3a3f04be22ea072b7c552ef634090004a61d599de390 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:07,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:07,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:15:07,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:07,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:07,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:07,361 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:07,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:07,363 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:07,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:07,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:07,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:07,370 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:07,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:07,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:07,373 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:15:07,374 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:15:07,374 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:15:07,375 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:07,375 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:07,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:07,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:07,377 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:15:07,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:07,378 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:07,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:07,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:07,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:07,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:07,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:07,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:07,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:07,383 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:15:07,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:15:07,384 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:07,384 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:07,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:07,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:07,385 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:07,385 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_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c331e2f68e9d93ed0b3a3f04be22ea072b7c552ef634090004a61d599de390 [2023-11-12 02:15:07,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:07,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:07,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:07,740 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:07,740 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:07,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-9.i [2023-11-12 02:15:10,872 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:11,110 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:11,110 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-9.i [2023-11-12 02:15:11,122 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/data/86b842c39/41d762f884814a0b8ac46cff55f9ef12/FLAG3044793fd [2023-11-12 02:15:11,137 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/data/86b842c39/41d762f884814a0b8ac46cff55f9ef12 [2023-11-12 02:15:11,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:11,141 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:11,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:11,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:11,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:11,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8a5325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11, skipping insertion in model container [2023-11-12 02:15:11,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,201 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:11,373 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_9feece87-8fe8-4b34-81ef-153506455ce3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-9.i[918,931] [2023-11-12 02:15:11,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:11,461 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:11,473 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_9feece87-8fe8-4b34-81ef-153506455ce3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-9.i[918,931] [2023-11-12 02:15:11,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:11,529 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:11,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11 WrapperNode [2023-11-12 02:15:11,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:11,532 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:11,532 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:11,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:11,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,556 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,597 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 155 [2023-11-12 02:15:11,598 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:11,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:11,599 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:11,599 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:11,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,653 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:11,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:11,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:11,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:11,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (1/1) ... [2023-11-12 02:15:11,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:11,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:11,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:11,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:15:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:15:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:15:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:11,822 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:11,825 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:12,307 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:12,315 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:12,315 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:15:12,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:12 BoogieIcfgContainer [2023-11-12 02:15:12,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:12,321 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:12,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:12,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:12,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:11" (1/3) ... [2023-11-12 02:15:12,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292f8e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:12, skipping insertion in model container [2023-11-12 02:15:12,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:11" (2/3) ... [2023-11-12 02:15:12,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292f8e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:12, skipping insertion in model container [2023-11-12 02:15:12,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:12" (3/3) ... [2023-11-12 02:15:12,327 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-9.i [2023-11-12 02:15:12,348 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:12,348 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:15:12,403 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:12,410 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;@63dc0b1f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:12,410 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:15:12,415 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 48 states have internal predecessors, (70), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:12,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-12 02:15:12,429 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:12,430 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:12,431 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:12,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:12,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1628896732, now seen corresponding path program 1 times [2023-11-12 02:15:12,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:12,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944785618] [2023-11-12 02:15:12,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:12,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:12,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:12,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944785618] [2023-11-12 02:15:12,635 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:15:12,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264972905] [2023-11-12 02:15:12,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:12,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:12,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:12,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:12,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:15:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:12,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:15:12,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:12,911 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-12 02:15:12,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:12,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264972905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:12,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:12,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:15:12,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491902373] [2023-11-12 02:15:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:12,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:15:12,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:12,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:15:12,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:12,959 INFO L87 Difference]: Start difference. First operand has 65 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 48 states have internal predecessors, (70), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:15:12,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:12,986 INFO L93 Difference]: Finished difference Result 123 states and 209 transitions. [2023-11-12 02:15:12,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:15:12,988 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 105 [2023-11-12 02:15:12,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:12,996 INFO L225 Difference]: With dead ends: 123 [2023-11-12 02:15:12,996 INFO L226 Difference]: Without dead ends: 61 [2023-11-12 02:15:13,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:13,004 INFO L413 NwaCegarLoop]: 93 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, 93 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 [2023-11-12 02:15:13,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:13,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-12 02:15:13,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-12 02:15:13,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 44 states have internal predecessors, (63), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:13,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 93 transitions. [2023-11-12 02:15:13,053 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 93 transitions. Word has length 105 [2023-11-12 02:15:13,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:13,054 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 93 transitions. [2023-11-12 02:15:13,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:15:13,054 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 93 transitions. [2023-11-12 02:15:13,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-12 02:15:13,058 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:13,058 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:13,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:13,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:15:13,265 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:13,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:13,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1279117482, now seen corresponding path program 1 times [2023-11-12 02:15:13,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:13,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739328742] [2023-11-12 02:15:13,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:13,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:13,328 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:13,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1874288827] [2023-11-12 02:15:13,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:13,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:13,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:13,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:13,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:15:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:13,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:15:13,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:13,640 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:15:13,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:13,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:13,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739328742] [2023-11-12 02:15:13,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:13,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874288827] [2023-11-12 02:15:13,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874288827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:13,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:13,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:13,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465925194] [2023-11-12 02:15:13,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:13,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:13,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:13,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:13,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:13,652 INFO L87 Difference]: Start difference. First operand 61 states and 93 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:13,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:13,699 INFO L93 Difference]: Finished difference Result 120 states and 185 transitions. [2023-11-12 02:15:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:13,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 105 [2023-11-12 02:15:13,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:13,706 INFO L225 Difference]: With dead ends: 120 [2023-11-12 02:15:13,707 INFO L226 Difference]: Without dead ends: 62 [2023-11-12 02:15:13,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:13,713 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:13,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:13,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-12 02:15:13,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-12 02:15:13,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 45 states have internal predecessors, (64), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:13,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 94 transitions. [2023-11-12 02:15:13,737 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 94 transitions. Word has length 105 [2023-11-12 02:15:13,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:13,739 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 94 transitions. [2023-11-12 02:15:13,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:13,740 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 94 transitions. [2023-11-12 02:15:13,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-12 02:15:13,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:13,743 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:13,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:13,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-12 02:15:13,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:13,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:13,945 INFO L85 PathProgramCache]: Analyzing trace with hash 268000232, now seen corresponding path program 1 times [2023-11-12 02:15:13,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:13,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871162239] [2023-11-12 02:15:13,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:13,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:14,002 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:14,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557013221] [2023-11-12 02:15:14,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:14,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:14,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:14,005 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:14,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:15:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:14,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:15:14,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:14,495 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:15:14,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:14,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:14,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871162239] [2023-11-12 02:15:14,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:14,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557013221] [2023-11-12 02:15:14,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557013221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:14,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:14,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:15:14,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000335588] [2023-11-12 02:15:14,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:14,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:14,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:14,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:14,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:14,502 INFO L87 Difference]: Start difference. First operand 62 states and 94 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:14,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:14,833 INFO L93 Difference]: Finished difference Result 197 states and 300 transitions. [2023-11-12 02:15:14,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:15:14,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 105 [2023-11-12 02:15:14,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:14,837 INFO L225 Difference]: With dead ends: 197 [2023-11-12 02:15:14,837 INFO L226 Difference]: Without dead ends: 138 [2023-11-12 02:15:14,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:15:14,839 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 138 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:14,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 287 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:15:14,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-12 02:15:14,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 119. [2023-11-12 02:15:14,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.5208333333333333) internal successors, (146), 97 states have internal predecessors, (146), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:15:14,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 186 transitions. [2023-11-12 02:15:14,860 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 186 transitions. Word has length 105 [2023-11-12 02:15:14,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:14,861 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 186 transitions. [2023-11-12 02:15:14,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:14,861 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 186 transitions. [2023-11-12 02:15:14,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-12 02:15:14,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:14,864 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:14,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:15,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-12 02:15:15,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:15,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:15,072 INFO L85 PathProgramCache]: Analyzing trace with hash -753068122, now seen corresponding path program 1 times [2023-11-12 02:15:15,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:15,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659885526] [2023-11-12 02:15:15,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:15,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:15,126 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:15,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021199100] [2023-11-12 02:15:15,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:15,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:15,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:15,136 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:15,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:15:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:15,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:15:15,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:15,493 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:15:15,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:15,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:15,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659885526] [2023-11-12 02:15:15,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:15,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021199100] [2023-11-12 02:15:15,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021199100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:15,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:15,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:15:15,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334318578] [2023-11-12 02:15:15,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:15,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:15,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:15,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:15,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:15,496 INFO L87 Difference]: Start difference. First operand 119 states and 186 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:15,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:15,860 INFO L93 Difference]: Finished difference Result 256 states and 394 transitions. [2023-11-12 02:15:15,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:15:15,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 105 [2023-11-12 02:15:15,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:15,863 INFO L225 Difference]: With dead ends: 256 [2023-11-12 02:15:15,863 INFO L226 Difference]: Without dead ends: 140 [2023-11-12 02:15:15,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:15:15,865 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 108 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:15,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 360 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:15:15,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-12 02:15:15,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 103. [2023-11-12 02:15:15,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 80 states have (on average 1.4625) internal successors, (117), 81 states have internal predecessors, (117), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:15:15,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 157 transitions. [2023-11-12 02:15:15,885 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 157 transitions. Word has length 105 [2023-11-12 02:15:15,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:15,886 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 157 transitions. [2023-11-12 02:15:15,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:15,887 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 157 transitions. [2023-11-12 02:15:15,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-12 02:15:15,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:15,895 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:15,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:16,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:16,101 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:16,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:16,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1320347670, now seen corresponding path program 1 times [2023-11-12 02:15:16,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:16,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775820932] [2023-11-12 02:15:16,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:16,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:16,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:16,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843902222] [2023-11-12 02:15:16,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:16,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:16,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:16,167 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:16,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:15:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:16,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:15:16,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:16,548 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:15:16,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:16,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:16,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775820932] [2023-11-12 02:15:16,550 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:16,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843902222] [2023-11-12 02:15:16,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843902222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:16,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:16,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:15:16,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697823419] [2023-11-12 02:15:16,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:16,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:16,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:16,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:16,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:16,564 INFO L87 Difference]: Start difference. First operand 103 states and 157 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:17,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:17,056 INFO L93 Difference]: Finished difference Result 240 states and 365 transitions. [2023-11-12 02:15:17,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:15:17,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 105 [2023-11-12 02:15:17,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:17,061 INFO L225 Difference]: With dead ends: 240 [2023-11-12 02:15:17,061 INFO L226 Difference]: Without dead ends: 140 [2023-11-12 02:15:17,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:15:17,062 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 90 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:17,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 376 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:15:17,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-12 02:15:17,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 121. [2023-11-12 02:15:17,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 98 states have (on average 1.510204081632653) internal successors, (148), 99 states have internal predecessors, (148), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:15:17,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 188 transitions. [2023-11-12 02:15:17,085 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 188 transitions. Word has length 105 [2023-11-12 02:15:17,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:17,086 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 188 transitions. [2023-11-12 02:15:17,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:17,086 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 188 transitions. [2023-11-12 02:15:17,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-12 02:15:17,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:17,088 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:17,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:17,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:17,295 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:17,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:17,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1953551272, now seen corresponding path program 1 times [2023-11-12 02:15:17,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:17,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486662077] [2023-11-12 02:15:17,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:17,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:17,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:17,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1419999830] [2023-11-12 02:15:17,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:17,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:17,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:17,341 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:17,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:15:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:17,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:15:17,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:17,678 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:15:17,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:17,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:17,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486662077] [2023-11-12 02:15:17,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:17,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419999830] [2023-11-12 02:15:17,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419999830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:17,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:17,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:15:17,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821126958] [2023-11-12 02:15:17,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:17,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:17,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:17,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:17,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:17,682 INFO L87 Difference]: Start difference. First operand 121 states and 188 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:18,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:18,015 INFO L93 Difference]: Finished difference Result 260 states and 398 transitions. [2023-11-12 02:15:18,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:15:18,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 105 [2023-11-12 02:15:18,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:18,018 INFO L225 Difference]: With dead ends: 260 [2023-11-12 02:15:18,018 INFO L226 Difference]: Without dead ends: 142 [2023-11-12 02:15:18,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:15:18,019 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 85 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:18,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 384 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:15:18,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-12 02:15:18,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 105. [2023-11-12 02:15:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 82 states have (on average 1.451219512195122) internal successors, (119), 83 states have internal predecessors, (119), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:15:18,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 159 transitions. [2023-11-12 02:15:18,031 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 159 transitions. Word has length 105 [2023-11-12 02:15:18,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:18,032 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 159 transitions. [2023-11-12 02:15:18,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:18,032 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 159 transitions. [2023-11-12 02:15:18,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-12 02:15:18,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:18,034 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:18,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:18,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:18,244 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:18,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:18,245 INFO L85 PathProgramCache]: Analyzing trace with hash 454984771, now seen corresponding path program 1 times [2023-11-12 02:15:18,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:18,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262001823] [2023-11-12 02:15:18,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:18,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:18,288 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:18,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [90399342] [2023-11-12 02:15:18,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:18,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:18,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:18,296 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:18,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:15:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:18,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:15:18,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:18,481 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:15:18,481 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:18,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:18,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262001823] [2023-11-12 02:15:18,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:18,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90399342] [2023-11-12 02:15:18,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90399342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:18,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:18,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:15:18,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26895464] [2023-11-12 02:15:18,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:18,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:15:18,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:18,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:15:18,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:18,485 INFO L87 Difference]: Start difference. First operand 105 states and 159 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:18,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:18,649 INFO L93 Difference]: Finished difference Result 271 states and 398 transitions. [2023-11-12 02:15:18,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:18,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 107 [2023-11-12 02:15:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:18,654 INFO L225 Difference]: With dead ends: 271 [2023-11-12 02:15:18,654 INFO L226 Difference]: Without dead ends: 169 [2023-11-12 02:15:18,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:18,656 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 43 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:18,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 279 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:15:18,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-12 02:15:18,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 155. [2023-11-12 02:15:18,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 126 states have (on average 1.4047619047619047) internal successors, (177), 129 states have internal predecessors, (177), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 21 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 02:15:18,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 225 transitions. [2023-11-12 02:15:18,678 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 225 transitions. Word has length 107 [2023-11-12 02:15:18,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:18,679 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 225 transitions. [2023-11-12 02:15:18,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:18,679 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 225 transitions. [2023-11-12 02:15:18,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-12 02:15:18,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:18,681 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:18,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:18,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:18,890 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:18,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:18,890 INFO L85 PathProgramCache]: Analyzing trace with hash 217863619, now seen corresponding path program 1 times [2023-11-12 02:15:18,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:18,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174797915] [2023-11-12 02:15:18,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:18,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:18,929 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:18,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [339958499] [2023-11-12 02:15:18,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:18,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:18,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:18,931 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:18,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:15:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:19,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:15:19,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:15:19,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:19,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:19,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174797915] [2023-11-12 02:15:19,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:19,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339958499] [2023-11-12 02:15:19,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339958499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:19,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:19,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:19,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572409537] [2023-11-12 02:15:19,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:19,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:19,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:19,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:19,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:19,113 INFO L87 Difference]: Start difference. First operand 155 states and 225 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:19,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:19,176 INFO L93 Difference]: Finished difference Result 451 states and 657 transitions. [2023-11-12 02:15:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:19,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 107 [2023-11-12 02:15:19,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:19,180 INFO L225 Difference]: With dead ends: 451 [2023-11-12 02:15:19,180 INFO L226 Difference]: Without dead ends: 299 [2023-11-12 02:15:19,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:19,182 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 77 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:19,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 158 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:19,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-11-12 02:15:19,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 217. [2023-11-12 02:15:19,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 188 states have (on average 1.4627659574468086) internal successors, (275), 191 states have internal predecessors, (275), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 21 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 02:15:19,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 323 transitions. [2023-11-12 02:15:19,208 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 323 transitions. Word has length 107 [2023-11-12 02:15:19,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:19,209 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 323 transitions. [2023-11-12 02:15:19,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:15:19,209 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 323 transitions. [2023-11-12 02:15:19,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-12 02:15:19,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:19,212 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:19,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:19,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:19,418 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:19,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:19,419 INFO L85 PathProgramCache]: Analyzing trace with hash 275121921, now seen corresponding path program 1 times [2023-11-12 02:15:19,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:19,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186895110] [2023-11-12 02:15:19,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:19,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:19,464 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:19,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1831275183] [2023-11-12 02:15:19,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:19,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:19,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:19,466 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:19,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:15:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:15:20,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:15:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:15:20,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:15:20,149 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:15:20,150 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:15:20,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-12 02:15:20,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:20,362 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:20,366 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:15:20,462 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:15:20,464 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 02:15:20,464 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-12 02:15:20,465 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated [2023-11-12 02:15:20,465 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-12 02:15:20,466 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-12 02:15:20,466 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated [2023-11-12 02:15:20,466 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-12 02:15:20,481 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-12 02:15:20,481 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-12 02:15:20,482 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-12 02:15:20,482 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated [2023-11-12 02:15:20,482 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-12 02:15:20,482 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-12 02:15:20,482 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-12 02:15:20,483 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated [2023-11-12 02:15:20,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:15:20 BoogieIcfgContainer [2023-11-12 02:15:20,509 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:15:20,510 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:15:20,510 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:15:20,510 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:15:20,511 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:12" (3/4) ... [2023-11-12 02:15:20,513 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:15:20,514 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:15:20,515 INFO L158 Benchmark]: Toolchain (without parser) took 9373.48ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 76.3MB in the beginning and 89.0MB in the end (delta: -12.7MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2023-11-12 02:15:20,515 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:15:20,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.15ms. Allocated memory is still 121.6MB. Free memory was 75.8MB in the beginning and 62.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:15:20,516 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.67ms. Allocated memory is still 121.6MB. Free memory was 62.7MB in the beginning and 59.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:15:20,516 INFO L158 Benchmark]: Boogie Preprocessor took 58.48ms. Allocated memory is still 121.6MB. Free memory was 59.7MB in the beginning and 58.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:15:20,517 INFO L158 Benchmark]: RCFGBuilder took 660.70ms. Allocated memory is still 121.6MB. Free memory was 58.1MB in the beginning and 84.7MB in the end (delta: -26.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2023-11-12 02:15:20,517 INFO L158 Benchmark]: TraceAbstraction took 8188.41ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 84.1MB in the beginning and 89.0MB in the end (delta: -4.8MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2023-11-12 02:15:20,517 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 165.7MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:15:20,520 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.15ms. Allocated memory is still 121.6MB. Free memory was 75.8MB in the beginning and 62.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.67ms. Allocated memory is still 121.6MB. Free memory was 62.7MB in the beginning and 59.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.48ms. Allocated memory is still 121.6MB. Free memory was 59.7MB in the beginning and 58.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 660.70ms. Allocated memory is still 121.6MB. Free memory was 58.1MB in the beginning and 84.7MB in the end (delta: -26.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 8188.41ms. Allocated memory was 121.6MB in the beginning and 165.7MB in the end (delta: 44.0MB). Free memory was 84.1MB in the beginning and 89.0MB in the end (delta: -4.8MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 165.7MB. Free memory is still 89.0MB. 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~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 114, overapproximation of shiftLeft at line 114. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.5; [L23] signed short int var_1_3 = 1; [L24] signed long int var_1_5 = -64; [L25] signed char var_1_6 = 10; [L26] signed char var_1_7 = 5; [L27] double var_1_8 = 16.25; [L28] double var_1_9 = 1.8; [L29] unsigned char var_1_10 = 32; [L30] unsigned char var_1_11 = 64; [L31] unsigned short int var_1_12 = 16; [L32] unsigned long int var_1_13 = 128; [L33] unsigned char var_1_15 = 1; [L34] unsigned short int var_1_16 = 256; [L35] signed char var_1_18 = -2; [L36] unsigned char last_1_var_1_10 = 32; [L37] unsigned short int last_1_var_1_12 = 16; [L38] unsigned long int last_1_var_1_13 = 128; VAL [isInitial=0, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=1, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L118] isInitial = 1 [L119] FCALL initially() [L120] COND TRUE 1 [L121] CALL updateLastVariables() [L109] last_1_var_1_10 = var_1_10 [L110] last_1_var_1_12 = var_1_12 [L111] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=1, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L121] RET updateLastVariables() [L122] CALL updateVariables() [L84] var_1_3 = __VERIFIER_nondet_short() [L85] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L85] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L86] CALL assume_abort_if_not(var_1_3 <= 8) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L86] RET assume_abort_if_not(var_1_3 <= 8) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L87] var_1_5 = __VERIFIER_nondet_long() [L88] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L88] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L89] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L89] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L90] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L90] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L91] var_1_6 = __VERIFIER_nondet_char() [L92] CALL assume_abort_if_not(var_1_6 >= 6) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L92] RET assume_abort_if_not(var_1_6 >= 6) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L93] CALL assume_abort_if_not(var_1_6 <= 12) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L93] RET assume_abort_if_not(var_1_6 <= 12) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L94] var_1_7 = __VERIFIER_nondet_char() [L95] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L95] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L96] CALL assume_abort_if_not(var_1_7 <= 6) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L96] RET assume_abort_if_not(var_1_7 <= 6) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L97] var_1_8 = __VERIFIER_nondet_double() [L98] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=9/5] [L98] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=9/5] [L99] var_1_9 = __VERIFIER_nondet_double() [L100] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L100] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L101] var_1_11 = __VERIFIER_nondet_uchar() [L102] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L102] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L103] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L103] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L104] var_1_15 = __VERIFIER_nondet_uchar() [L105] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L105] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L106] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L106] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L122] RET updateVariables() [L123] CALL step() [L42] COND TRUE ((var_1_6 >> 2) * last_1_var_1_13) > last_1_var_1_10 [L43] var_1_12 = var_1_6 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=254, var_1_12=12, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L45] COND TRUE var_1_6 <= (last_1_var_1_12 + var_1_7) [L46] var_1_10 = var_1_11 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L50] var_1_18 = var_1_3 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L51] EXPR 1 << var_1_10 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L51] COND FALSE !((1 << var_1_10) != (-500 / -100)) [L58] var_1_13 = var_1_6 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=256, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L60] COND FALSE !((- var_1_9) <= var_1_8) [L73] var_1_16 = var_1_10 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=254, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L75] EXPR var_1_16 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=254, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L75] COND FALSE !((var_1_16 >> var_1_3) == (var_1_10 / var_1_5)) [L123] RET step() [L124] CALL, EXPR property() [L114] EXPR var_1_16 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=254, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L114] EXPR ((var_1_16 >> var_1_3) == (var_1_10 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_10 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=254, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L114] EXPR (((((var_1_16 >> var_1_3) == (var_1_10 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_10 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (last_1_var_1_12 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * last_1_var_1_13) > last_1_var_1_10) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_10) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_12 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6))) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=254, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L114] EXPR 1 << var_1_10 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=254, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L114] EXPR (((((var_1_16 >> var_1_3) == (var_1_10 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_10 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (last_1_var_1_12 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * last_1_var_1_13) > last_1_var_1_10) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_10) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_12 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6))) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=254, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L114-L115] return (((((((var_1_16 >> var_1_3) == (var_1_10 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_10 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (last_1_var_1_12 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * last_1_var_1_13) > last_1_var_1_10) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_10) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_12 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6)))) && (((- var_1_9) <= var_1_8) ? (var_1_15 ? ((((((var_1_11) > ((var_1_12 * -64))) ? (var_1_11) : ((var_1_12 * -64)))) < var_1_12) ? ((var_1_13 == var_1_10) ? (var_1_16 == ((unsigned short int) var_1_11)) : 1) : (var_1_16 == ((unsigned short int) 256))) : (var_1_16 == ((unsigned short int) var_1_3))) : (var_1_16 == ((unsigned short int) var_1_10)))) && (var_1_18 == ((signed char) var_1_3)) ; [L124] RET, EXPR property() [L124] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=254, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=254, var_1_11=254, var_1_12=12, var_1_13=12, var_1_15=1, var_1_16=254, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=12, var_1_7=0, var_1_8=2, var_1_9=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 9, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 541 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 541 mSDsluCounter, 2116 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1304 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 855 IncrementalHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 812 mSDtfsCounter, 855 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 849 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=8, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 208 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1056 NumberOfCodeBlocks, 1056 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 836 ConstructedInterpolants, 0 QuantifiedInterpolants, 1700 SizeOfPredicates, 38 NumberOfNonLiveVariables, 2145 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 3360/3360 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 [2023-11-12 02:15:20,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl --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 c2c331e2f68e9d93ed0b3a3f04be22ea072b7c552ef634090004a61d599de390 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:23,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:23,469 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:15:23,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:23,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:23,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:23,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:23,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:23,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:23,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:23,523 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:23,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:23,524 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:23,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:23,527 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:23,527 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:15:23,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:15:23,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:23,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:23,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:23,529 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:23,530 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:15:23,530 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:15:23,530 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:15:23,531 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:15:23,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:23,532 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:23,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:23,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:23,533 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:23,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:23,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:23,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:23,535 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:23,535 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:15:23,536 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:15:23,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:23,536 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:23,536 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:23,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:23,537 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:15:23,538 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:23,538 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_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c331e2f68e9d93ed0b3a3f04be22ea072b7c552ef634090004a61d599de390 [2023-11-12 02:15:24,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:24,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:24,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:24,040 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:24,041 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:24,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-9.i [2023-11-12 02:15:27,283 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:27,559 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:27,559 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-9.i [2023-11-12 02:15:27,577 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/data/a98d4d5a9/4affdf60ceb14352a0c9019fc38ca359/FLAG79d47a3f5 [2023-11-12 02:15:27,592 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/data/a98d4d5a9/4affdf60ceb14352a0c9019fc38ca359 [2023-11-12 02:15:27,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:27,599 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:27,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:27,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:27,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:27,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:27" (1/1) ... [2023-11-12 02:15:27,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76747f89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:27, skipping insertion in model container [2023-11-12 02:15:27,614 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:27" (1/1) ... [2023-11-12 02:15:27,646 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:27,843 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_9feece87-8fe8-4b34-81ef-153506455ce3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-9.i[918,931] [2023-11-12 02:15:27,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:27,976 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:27,990 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_9feece87-8fe8-4b34-81ef-153506455ce3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-9.i[918,931] [2023-11-12 02:15:28,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:28,110 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:28,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28 WrapperNode [2023-11-12 02:15:28,111 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:28,112 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:28,113 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:28,113 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:28,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28" (1/1) ... [2023-11-12 02:15:28,146 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28" (1/1) ... [2023-11-12 02:15:28,196 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-11-12 02:15:28,198 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:28,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:28,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:28,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:28,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28" (1/1) ... [2023-11-12 02:15:28,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28" (1/1) ... [2023-11-12 02:15:28,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28" (1/1) ... [2023-11-12 02:15:28,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28" (1/1) ... [2023-11-12 02:15:28,243 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28" (1/1) ... [2023-11-12 02:15:28,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28" (1/1) ... [2023-11-12 02:15:28,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28" (1/1) ... [2023-11-12 02:15:28,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28" (1/1) ... [2023-11-12 02:15:28,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:28,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:28,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:28,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:28,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28" (1/1) ... [2023-11-12 02:15:28,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:28,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:28,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:28,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:15:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:15:28,373 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:15:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:28,493 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:28,495 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:28,905 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:28,920 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:28,923 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:15:28,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:28 BoogieIcfgContainer [2023-11-12 02:15:28,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:28,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:28,931 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:28,935 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:28,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:27" (1/3) ... [2023-11-12 02:15:28,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f28173f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:28, skipping insertion in model container [2023-11-12 02:15:28,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:28" (2/3) ... [2023-11-12 02:15:28,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f28173f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:28, skipping insertion in model container [2023-11-12 02:15:28,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:28" (3/3) ... [2023-11-12 02:15:28,942 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-9.i [2023-11-12 02:15:28,958 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:28,958 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:15:29,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:29,018 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;@5c5fe2b2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:29,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:15:29,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 36 states have internal predecessors, (50), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:29,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-12 02:15:29,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:29,036 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:29,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:29,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:29,043 INFO L85 PathProgramCache]: Analyzing trace with hash -2039649414, now seen corresponding path program 1 times [2023-11-12 02:15:29,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:15:29,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905456712] [2023-11-12 02:15:29,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:29,077 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 [2023-11-12 02:15:29,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:15:29,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:15:29,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:15:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:29,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:15:29,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:29,442 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-11-12 02:15:29,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:29,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:15:29,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905456712] [2023-11-12 02:15:29,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905456712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:29,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:29,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:15:29,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263409793] [2023-11-12 02:15:29,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:29,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:15:29,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:15:29,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:15:29,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:29,488 INFO L87 Difference]: Start difference. First operand has 53 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 36 states have internal predecessors, (50), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:15:29,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:29,517 INFO L93 Difference]: Finished difference Result 99 states and 169 transitions. [2023-11-12 02:15:29,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:15:29,522 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2023-11-12 02:15:29,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:29,530 INFO L225 Difference]: With dead ends: 99 [2023-11-12 02:15:29,530 INFO L226 Difference]: Without dead ends: 49 [2023-11-12 02:15:29,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:29,538 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 [2023-11-12 02:15:29,540 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] [2023-11-12 02:15:29,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-12 02:15:29,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-12 02:15:29,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:15:29,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2023-11-12 02:15:29,589 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 98 [2023-11-12 02:15:29,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:29,589 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2023-11-12 02:15:29,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:15:29,590 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2023-11-12 02:15:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-12 02:15:29,595 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:29,596 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:29,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:15:29,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:15:29,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:29,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:29,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1501577006, now seen corresponding path program 1 times [2023-11-12 02:15:29,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:15:29,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265479559] [2023-11-12 02:15:29,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:29,801 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 [2023-11-12 02:15:29,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:15:29,804 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:15:29,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9feece87-8fe8-4b34-81ef-153506455ce3/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:15:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:30,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-12 02:15:30,088 INFO L285 TraceCheckSpWp]: Computing forward predicates...