./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.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_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 8c657d494f862b4e748f718e9b06d9431fa0d9b5ab160606f6187c22952013a2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:03:26,222 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:03:26,298 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:03:26,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:03:26,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:03:26,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:03:26,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:03:26,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:03:26,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:03:26,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:03:26,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:03:26,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:03:26,368 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:03:26,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:03:26,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:03:26,371 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:03:26,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:03:26,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:03:26,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:03:26,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:03:26,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:03:26,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:03:26,375 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:03:26,375 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:03:26,375 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:03:26,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:03:26,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:03:26,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:03:26,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:26,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:03:26,380 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:03:26,393 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:03:26,393 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:03:26,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:03:26,394 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:03:26,394 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:03:26,394 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:03:26,395 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:03:26,395 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:03:26,395 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_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c657d494f862b4e748f718e9b06d9431fa0d9b5ab160606f6187c22952013a2 [2023-11-12 02:03:26,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:03:26,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:03:26,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:03:26,752 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:03:26,753 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:03:26,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.i [2023-11-12 02:03:29,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:03:30,202 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:03:30,203 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.i [2023-11-12 02:03:30,217 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/data/08c744f7d/0441fa9baf7e4bfb913bbe6b7c7303d0/FLAGb39fe0018 [2023-11-12 02:03:30,238 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/data/08c744f7d/0441fa9baf7e4bfb913bbe6b7c7303d0 [2023-11-12 02:03:30,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:03:30,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:03:30,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:30,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:03:30,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:03:30,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23bd90b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30, skipping insertion in model container [2023-11-12 02:03:30,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,346 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:03:30,526 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_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.i[917,930] [2023-11-12 02:03:30,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:30,596 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:03:30,608 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_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.i[917,930] [2023-11-12 02:03:30,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:30,655 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:03:30,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30 WrapperNode [2023-11-12 02:03:30,655 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:30,657 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:30,657 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:03:30,657 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:03:30,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,736 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 166 [2023-11-12 02:03:30,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:30,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:03:30,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:03:30,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:03:30,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,767 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,777 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:03:30,779 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:03:30,779 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:03:30,779 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:03:30,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30" (1/1) ... [2023-11-12 02:03:30,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:30,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:30,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:03:30,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:03:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:03:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:03:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:03:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:03:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:03:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:03:31,019 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:03:31,025 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:03:31,494 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:03:31,507 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:03:31,508 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:03:31,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:31 BoogieIcfgContainer [2023-11-12 02:03:31,510 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:03:31,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:03:31,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:03:31,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:03:31,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:03:30" (1/3) ... [2023-11-12 02:03:31,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b6b8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:31, skipping insertion in model container [2023-11-12 02:03:31,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:30" (2/3) ... [2023-11-12 02:03:31,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b6b8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:31, skipping insertion in model container [2023-11-12 02:03:31,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:31" (3/3) ... [2023-11-12 02:03:31,521 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-33.i [2023-11-12 02:03:31,543 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:03:31,544 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:03:31,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:03:31,609 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;@63e19684, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:03:31,610 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:03:31,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 49 states have internal predecessors, (73), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:03:31,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 02:03:31,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:31,629 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:31,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:31,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:31,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1845208006, now seen corresponding path program 1 times [2023-11-12 02:03:31,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:31,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652941455] [2023-11-12 02:03:31,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:31,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:03:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:03:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:03:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:03:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:03:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:03:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:03:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:03:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:03:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:03:32,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:32,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652941455] [2023-11-12 02:03:32,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652941455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:32,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:32,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:03:32,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753978388] [2023-11-12 02:03:32,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:32,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:03:32,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:32,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:03:32,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:03:32,171 INFO L87 Difference]: Start difference. First operand has 60 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 49 states have internal predecessors, (73), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:03:32,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:32,208 INFO L93 Difference]: Finished difference Result 113 states and 185 transitions. [2023-11-12 02:03:32,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:03:32,211 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2023-11-12 02:03:32,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:32,222 INFO L225 Difference]: With dead ends: 113 [2023-11-12 02:03:32,223 INFO L226 Difference]: Without dead ends: 56 [2023-11-12 02:03:32,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 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 02:03:32,232 INFO L413 NwaCegarLoop]: 84 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, 84 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 02:03:32,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:32,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-12 02:03:32,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-12 02:03:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 45 states have internal predecessors, (66), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:03:32,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 84 transitions. [2023-11-12 02:03:32,305 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 84 transitions. Word has length 74 [2023-11-12 02:03:32,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:32,307 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 84 transitions. [2023-11-12 02:03:32,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:03:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 84 transitions. [2023-11-12 02:03:32,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 02:03:32,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:32,314 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:32,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:03:32,315 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:32,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:32,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1042781824, now seen corresponding path program 1 times [2023-11-12 02:03:32,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:32,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251818977] [2023-11-12 02:03:32,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:32,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:03:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:03:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:03:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:03:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:03:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:03:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:03:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:03:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:03:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:32,754 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:03:32,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:32,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251818977] [2023-11-12 02:03:32,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251818977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:32,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:32,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:03:32,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489223214] [2023-11-12 02:03:32,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:32,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:32,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:32,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:32,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:32,760 INFO L87 Difference]: Start difference. First operand 56 states and 84 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:32,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:32,790 INFO L93 Difference]: Finished difference Result 110 states and 167 transitions. [2023-11-12 02:03:32,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:32,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2023-11-12 02:03:32,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:32,793 INFO L225 Difference]: With dead ends: 110 [2023-11-12 02:03:32,793 INFO L226 Difference]: Without dead ends: 57 [2023-11-12 02:03:32,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 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 02:03:32,798 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:32,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:32,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-12 02:03:32,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-11-12 02:03:32,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 46 states have internal predecessors, (67), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:03:32,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 85 transitions. [2023-11-12 02:03:32,817 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 85 transitions. Word has length 74 [2023-11-12 02:03:32,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:32,820 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 85 transitions. [2023-11-12 02:03:32,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:32,820 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 85 transitions. [2023-11-12 02:03:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 02:03:32,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:32,823 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:32,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:03:32,823 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:32,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:32,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1722840194, now seen corresponding path program 1 times [2023-11-12 02:03:32,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:32,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838303881] [2023-11-12 02:03:32,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:32,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:33,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:03:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:33,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:03:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:33,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:03:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:33,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:03:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:33,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:03:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:33,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:03:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:33,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:03:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:33,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:03:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:33,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:03:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:33,159 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:03:33,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:33,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838303881] [2023-11-12 02:03:33,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838303881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:33,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:33,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:03:33,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673661530] [2023-11-12 02:03:33,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:33,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:03:33,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:33,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:03:33,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:03:33,168 INFO L87 Difference]: Start difference. First operand 57 states and 85 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:33,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:33,480 INFO L93 Difference]: Finished difference Result 143 states and 214 transitions. [2023-11-12 02:03:33,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:03:33,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2023-11-12 02:03:33,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:33,495 INFO L225 Difference]: With dead ends: 143 [2023-11-12 02:03:33,495 INFO L226 Difference]: Without dead ends: 89 [2023-11-12 02:03:33,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:03:33,500 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 101 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:33,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 269 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:03:33,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-12 02:03:33,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 59. [2023-11-12 02:03:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 48 states have (on average 1.4375) internal successors, (69), 48 states have internal predecessors, (69), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:03:33,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 87 transitions. [2023-11-12 02:03:33,520 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 87 transitions. Word has length 74 [2023-11-12 02:03:33,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:33,521 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 87 transitions. [2023-11-12 02:03:33,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:33,522 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions. [2023-11-12 02:03:33,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 02:03:33,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:33,524 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:33,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:03:33,524 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:33,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:33,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1981005632, now seen corresponding path program 1 times [2023-11-12 02:03:33,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:33,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858396230] [2023-11-12 02:03:33,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:33,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:36,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:03:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:36,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:03:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:36,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:03:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:36,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:03:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:36,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:03:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:36,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:03:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:36,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:03:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:36,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:03:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:36,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:03:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:36,413 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:03:36,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:36,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858396230] [2023-11-12 02:03:36,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858396230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:36,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:36,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:03:36,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287002606] [2023-11-12 02:03:36,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:36,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:03:36,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:36,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:03:36,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:03:36,421 INFO L87 Difference]: Start difference. First operand 59 states and 87 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:37,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:37,425 INFO L93 Difference]: Finished difference Result 182 states and 275 transitions. [2023-11-12 02:03:37,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:03:37,426 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2023-11-12 02:03:37,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:37,428 INFO L225 Difference]: With dead ends: 182 [2023-11-12 02:03:37,428 INFO L226 Difference]: Without dead ends: 126 [2023-11-12 02:03:37,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:03:37,436 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 166 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:37,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 281 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-12 02:03:37,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-12 02:03:37,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 80. [2023-11-12 02:03:37,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 69 states have (on average 1.4782608695652173) internal successors, (102), 69 states have internal predecessors, (102), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:03:37,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 120 transitions. [2023-11-12 02:03:37,459 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 120 transitions. Word has length 74 [2023-11-12 02:03:37,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:37,462 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 120 transitions. [2023-11-12 02:03:37,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:37,462 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 120 transitions. [2023-11-12 02:03:37,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 02:03:37,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:37,470 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:37,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:03:37,471 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:37,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:37,477 INFO L85 PathProgramCache]: Analyzing trace with hash -13139074, now seen corresponding path program 1 times [2023-11-12 02:03:37,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:37,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494667934] [2023-11-12 02:03:37,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:37,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:03:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:03:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:03:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:03:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:03:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:03:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:03:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:03:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:03:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,335 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:03:38,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:38,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494667934] [2023-11-12 02:03:38,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494667934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:38,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:38,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:03:38,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190049598] [2023-11-12 02:03:38,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:38,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:03:38,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:38,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:03:38,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:03:38,340 INFO L87 Difference]: Start difference. First operand 80 states and 120 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:38,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:38,961 INFO L93 Difference]: Finished difference Result 190 states and 288 transitions. [2023-11-12 02:03:38,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:03:38,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2023-11-12 02:03:38,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:38,964 INFO L225 Difference]: With dead ends: 190 [2023-11-12 02:03:38,964 INFO L226 Difference]: Without dead ends: 113 [2023-11-12 02:03:38,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:03:38,965 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 124 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:38,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 239 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:03:38,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-12 02:03:38,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 69. [2023-11-12 02:03:38,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 58 states have (on average 1.4655172413793103) internal successors, (85), 58 states have internal predecessors, (85), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:03:38,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 103 transitions. [2023-11-12 02:03:38,978 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 103 transitions. Word has length 74 [2023-11-12 02:03:38,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:38,978 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 103 transitions. [2023-11-12 02:03:38,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:38,979 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 103 transitions. [2023-11-12 02:03:38,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-12 02:03:38,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:38,980 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:38,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:03:38,981 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:38,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:38,982 INFO L85 PathProgramCache]: Analyzing trace with hash 271161644, now seen corresponding path program 1 times [2023-11-12 02:03:38,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:38,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623305031] [2023-11-12 02:03:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:38,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:03:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:03:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:03:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:03:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:03:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:03:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:03:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:03:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:03:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:03:39,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:39,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623305031] [2023-11-12 02:03:39,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623305031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:39,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:39,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:03:39,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282636980] [2023-11-12 02:03:39,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:39,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:39,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:39,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:39,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:39,060 INFO L87 Difference]: Start difference. First operand 69 states and 103 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:39,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:39,118 INFO L93 Difference]: Finished difference Result 178 states and 265 transitions. [2023-11-12 02:03:39,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:39,119 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 75 [2023-11-12 02:03:39,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:39,120 INFO L225 Difference]: With dead ends: 178 [2023-11-12 02:03:39,121 INFO L226 Difference]: Without dead ends: 112 [2023-11-12 02:03:39,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 02:03:39,122 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 52 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:39,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 175 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:39,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-12 02:03:39,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 80. [2023-11-12 02:03:39,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 69 states have (on average 1.463768115942029) internal successors, (101), 69 states have internal predecessors, (101), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:03:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 119 transitions. [2023-11-12 02:03:39,135 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 119 transitions. Word has length 75 [2023-11-12 02:03:39,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:39,135 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 119 transitions. [2023-11-12 02:03:39,136 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:39,136 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 119 transitions. [2023-11-12 02:03:39,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-12 02:03:39,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:39,137 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:39,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:03:39,138 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:39,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:39,139 INFO L85 PathProgramCache]: Analyzing trace with hash -161545512, now seen corresponding path program 1 times [2023-11-12 02:03:39,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:39,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293446183] [2023-11-12 02:03:39,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:39,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:03:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:03:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:03:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:03:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:03:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:03:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:03:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:03:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:03:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,211 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:03:39,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:39,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293446183] [2023-11-12 02:03:39,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293446183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:39,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:39,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:03:39,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107739079] [2023-11-12 02:03:39,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:39,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:39,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:39,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:39,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:39,215 INFO L87 Difference]: Start difference. First operand 80 states and 119 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:39,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:39,261 INFO L93 Difference]: Finished difference Result 187 states and 275 transitions. [2023-11-12 02:03:39,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:39,262 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 75 [2023-11-12 02:03:39,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:39,264 INFO L225 Difference]: With dead ends: 187 [2023-11-12 02:03:39,264 INFO L226 Difference]: Without dead ends: 110 [2023-11-12 02:03:39,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 02:03:39,266 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 69 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:39,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 137 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:39,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-12 02:03:39,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 70. [2023-11-12 02:03:39,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 59 states have internal predecessors, (83), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:03:39,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 101 transitions. [2023-11-12 02:03:39,278 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 101 transitions. Word has length 75 [2023-11-12 02:03:39,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:39,279 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 101 transitions. [2023-11-12 02:03:39,280 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:39,280 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 101 transitions. [2023-11-12 02:03:39,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-12 02:03:39,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:39,281 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:39,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:03:39,282 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:39,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:39,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1723414380, now seen corresponding path program 1 times [2023-11-12 02:03:39,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:39,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256064356] [2023-11-12 02:03:39,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:39,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:03:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:03:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:03:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:03:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:03:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:03:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:03:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:03:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:03:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:39,455 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:03:39,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:39,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256064356] [2023-11-12 02:03:39,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256064356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:39,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:39,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:03:39,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804765320] [2023-11-12 02:03:39,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:39,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:03:39,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:39,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:03:39,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:03:39,459 INFO L87 Difference]: Start difference. First operand 70 states and 101 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:39,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:39,781 INFO L93 Difference]: Finished difference Result 224 states and 321 transitions. [2023-11-12 02:03:39,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:03:39,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 76 [2023-11-12 02:03:39,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:39,784 INFO L225 Difference]: With dead ends: 224 [2023-11-12 02:03:39,784 INFO L226 Difference]: Without dead ends: 157 [2023-11-12 02:03:39,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:03:39,786 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 209 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:39,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 316 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:03:39,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-12 02:03:39,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 144. [2023-11-12 02:03:39,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 119 states have (on average 1.3781512605042017) internal successors, (164), 121 states have internal predecessors, (164), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:03:39,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 204 transitions. [2023-11-12 02:03:39,808 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 204 transitions. Word has length 76 [2023-11-12 02:03:39,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:39,808 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 204 transitions. [2023-11-12 02:03:39,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:39,809 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 204 transitions. [2023-11-12 02:03:39,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-12 02:03:39,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:39,810 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:39,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:03:39,811 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:39,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:39,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1984746902, now seen corresponding path program 1 times [2023-11-12 02:03:39,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:39,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382937184] [2023-11-12 02:03:39,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:39,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:40,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:03:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:40,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:03:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:40,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:03:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:40,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:03:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:40,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:03:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:40,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:03:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:40,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:03:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:40,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:03:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:40,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:03:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:40,955 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:03:40,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:40,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382937184] [2023-11-12 02:03:40,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382937184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:40,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:40,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:03:40,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997520870] [2023-11-12 02:03:40,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:40,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:03:40,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:40,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:03:40,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:03:40,960 INFO L87 Difference]: Start difference. First operand 144 states and 204 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:41,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:41,927 INFO L93 Difference]: Finished difference Result 406 states and 579 transitions. [2023-11-12 02:03:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:03:41,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 76 [2023-11-12 02:03:41,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:41,932 INFO L225 Difference]: With dead ends: 406 [2023-11-12 02:03:41,932 INFO L226 Difference]: Without dead ends: 269 [2023-11-12 02:03:41,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:03:41,934 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 312 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:41,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 216 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:03:41,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-12 02:03:41,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 176. [2023-11-12 02:03:41,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 151 states have (on average 1.3973509933774835) internal successors, (211), 153 states have internal predecessors, (211), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 02:03:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 251 transitions. [2023-11-12 02:03:41,955 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 251 transitions. Word has length 76 [2023-11-12 02:03:41,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:41,956 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 251 transitions. [2023-11-12 02:03:41,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 251 transitions. [2023-11-12 02:03:41,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-12 02:03:41,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:41,958 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:41,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:03:41,959 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:41,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:41,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1167098452, now seen corresponding path program 1 times [2023-11-12 02:03:41,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:41,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951198039] [2023-11-12 02:03:41,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:41,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:03:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:03:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:03:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:03:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:03:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:03:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:03:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:03:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:03:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,109 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:03:42,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:42,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951198039] [2023-11-12 02:03:42,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951198039] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:42,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:42,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:03:42,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190842835] [2023-11-12 02:03:42,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:42,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:42,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:42,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:42,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:42,113 INFO L87 Difference]: Start difference. First operand 176 states and 251 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:42,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:42,215 INFO L93 Difference]: Finished difference Result 480 states and 686 transitions. [2023-11-12 02:03:42,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:42,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 76 [2023-11-12 02:03:42,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:42,219 INFO L225 Difference]: With dead ends: 480 [2023-11-12 02:03:42,220 INFO L226 Difference]: Without dead ends: 311 [2023-11-12 02:03:42,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 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 02:03:42,221 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 55 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:42,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 160 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:03:42,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-12 02:03:42,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 248. [2023-11-12 02:03:42,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 212 states have (on average 1.3820754716981132) internal successors, (293), 214 states have internal predecessors, (293), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-12 02:03:42,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 351 transitions. [2023-11-12 02:03:42,250 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 351 transitions. Word has length 76 [2023-11-12 02:03:42,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:42,251 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 351 transitions. [2023-11-12 02:03:42,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:42,251 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 351 transitions. [2023-11-12 02:03:42,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-12 02:03:42,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:42,253 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:42,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:03:42,253 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:42,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:42,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1890476153, now seen corresponding path program 1 times [2023-11-12 02:03:42,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:42,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467673671] [2023-11-12 02:03:42,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:42,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:03:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:03:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:03:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:03:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:03:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:03:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:03:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-12 02:03:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:03:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,509 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-12 02:03:42,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:42,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467673671] [2023-11-12 02:03:42,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467673671] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:42,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650785302] [2023-11-12 02:03:42,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:42,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:42,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:42,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:42,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:03:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:42,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:03:42,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:42,989 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-12 02:03:42,989 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:03:43,202 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-12 02:03:43,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650785302] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:03:43,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:03:43,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 16 [2023-11-12 02:03:43,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24376685] [2023-11-12 02:03:43,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:03:43,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-12 02:03:43,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:43,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-12 02:03:43,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:03:43,206 INFO L87 Difference]: Start difference. First operand 248 states and 351 transitions. Second operand has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 6 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (27), 3 states have call predecessors, (27), 6 states have call successors, (27) [2023-11-12 02:03:44,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:44,052 INFO L93 Difference]: Finished difference Result 816 states and 1119 transitions. [2023-11-12 02:03:44,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-12 02:03:44,053 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 6 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (27), 3 states have call predecessors, (27), 6 states have call successors, (27) Word has length 77 [2023-11-12 02:03:44,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:44,060 INFO L225 Difference]: With dead ends: 816 [2023-11-12 02:03:44,060 INFO L226 Difference]: Without dead ends: 708 [2023-11-12 02:03:44,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=926, Unknown=0, NotChecked=0, Total=1260 [2023-11-12 02:03:44,062 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 871 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:44,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 577 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:03:44,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2023-11-12 02:03:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 274. [2023-11-12 02:03:44,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 216 states have (on average 1.2962962962962963) internal successors, (280), 217 states have internal predecessors, (280), 45 states have call successors, (45), 12 states have call predecessors, (45), 12 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-12 02:03:44,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 370 transitions. [2023-11-12 02:03:44,129 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 370 transitions. Word has length 77 [2023-11-12 02:03:44,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:44,129 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 370 transitions. [2023-11-12 02:03:44,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 6 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (27), 3 states have call predecessors, (27), 6 states have call successors, (27) [2023-11-12 02:03:44,130 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 370 transitions. [2023-11-12 02:03:44,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-12 02:03:44,131 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:44,132 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:44,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:44,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-12 02:03:44,339 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:44,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:44,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1467774327, now seen corresponding path program 1 times [2023-11-12 02:03:44,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:44,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380785267] [2023-11-12 02:03:44,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:44,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:03:44,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:03:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:03:44,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:03:44,463 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:03:44,464 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:03:44,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:03:44,471 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:44,475 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:03:44,537 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:03:44,544 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 02:03:44,545 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-12 02:03:44,546 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 02:03:44,547 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-12 02:03:44,552 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-12 02:03:44,553 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-12 02:03:44,553 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-12 02:03:44,553 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-12 02:03:44,554 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-12 02:03:44,554 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-12 02:03:44,555 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-12 02:03:44,555 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-12 02:03:44,555 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-12 02:03:44,568 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-12 02:03:44,568 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-12 02:03:44,569 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-12 02:03:44,569 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-12 02:03:44,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:03:44 BoogieIcfgContainer [2023-11-12 02:03:44,597 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:03:44,598 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:03:44,598 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:03:44,598 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:03:44,599 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:31" (3/4) ... [2023-11-12 02:03:44,602 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:03:44,603 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:03:44,604 INFO L158 Benchmark]: Toolchain (without parser) took 14314.89ms. Allocated memory was 182.5MB in the beginning and 272.6MB in the end (delta: 90.2MB). Free memory was 153.9MB in the beginning and 192.7MB in the end (delta: -38.8MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2023-11-12 02:03:44,604 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:03:44,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.66ms. Allocated memory is still 182.5MB. Free memory was 153.7MB in the beginning and 145.4MB in the end (delta: 8.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-11-12 02:03:44,605 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.86ms. Allocated memory is still 182.5MB. Free memory was 144.7MB in the beginning and 141.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:03:44,605 INFO L158 Benchmark]: Boogie Preprocessor took 40.75ms. Allocated memory is still 182.5MB. Free memory was 141.9MB in the beginning and 140.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:03:44,606 INFO L158 Benchmark]: RCFGBuilder took 731.79ms. Allocated memory is still 182.5MB. Free memory was 139.8MB in the beginning and 120.3MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:03:44,607 INFO L158 Benchmark]: TraceAbstraction took 13084.33ms. Allocated memory was 182.5MB in the beginning and 272.6MB in the end (delta: 90.2MB). Free memory was 119.5MB in the beginning and 192.7MB in the end (delta: -73.1MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2023-11-12 02:03:44,607 INFO L158 Benchmark]: Witness Printer took 4.85ms. Allocated memory is still 272.6MB. Free memory is still 192.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:03:44,611 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.66ms. Allocated memory is still 182.5MB. Free memory was 153.7MB in the beginning and 145.4MB in the end (delta: 8.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.86ms. Allocated memory is still 182.5MB. Free memory was 144.7MB in the beginning and 141.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.75ms. Allocated memory is still 182.5MB. Free memory was 141.9MB in the beginning and 140.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 731.79ms. Allocated memory is still 182.5MB. Free memory was 139.8MB in the beginning and 120.3MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 13084.33ms. Allocated memory was 182.5MB in the beginning and 272.6MB in the end (delta: 90.2MB). Free memory was 119.5MB in the beginning and 192.7MB in the end (delta: -73.1MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Witness Printer took 4.85ms. Allocated memory is still 272.6MB. Free memory is still 192.7MB. 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~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 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 someBinaryFLOATComparisonOperation at line 84, overapproximation of someUnaryDOUBLEoperation at line 27. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -10; [L23] signed short int var_1_5 = 4; [L24] unsigned char var_1_7 = 200; [L25] unsigned char var_1_8 = 32; [L26] float var_1_9 = 256.5; [L27] float var_1_10 = -0.25; [L28] float var_1_11 = 0.30000000000000004; [L29] float var_1_12 = 49.5; [L30] signed long int var_1_13 = -8; [L31] unsigned char var_1_14 = 0; [L32] float var_1_15 = 0.4; [L33] signed long int var_1_16 = -256; [L34] signed long int last_1_var_1_13 = -8; VAL [isInitial=0, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=4, var_1_7=200, var_1_8=32, var_1_9=513/2] [L88] isInitial = 1 [L89] FCALL initially() [L90] COND TRUE 1 [L91] CALL updateLastVariables() [L81] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=4, var_1_7=200, var_1_8=32, var_1_9=513/2] [L91] RET updateLastVariables() [L92] CALL updateVariables() [L64] var_1_5 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L65] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L66] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L66] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L67] var_1_8 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L68] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L69] CALL assume_abort_if_not(var_1_8 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L69] RET assume_abort_if_not(var_1_8 <= 127) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L70] var_1_10 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L71] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L72] var_1_11 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L73] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L74] var_1_12 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L75] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L76] var_1_14 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L77] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L78] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L78] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L92] RET updateVariables() [L93] CALL step() [L38] COND FALSE !(var_1_5 < last_1_var_1_13) VAL [isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L41] var_1_16 = var_1_7 [L42] unsigned char stepLocal_1 = var_1_7; VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=200, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L43] COND TRUE ! var_1_14 [L44] var_1_13 = var_1_8 VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=2/5, var_1_16=200, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L52] var_1_15 = var_1_11 VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=518, var_1_16=200, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L53] EXPR var_1_13 ^ var_1_7 VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=518, var_1_16=200, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L53] signed long int stepLocal_0 = (var_1_13 ^ var_1_7) + var_1_16; [L54] COND FALSE !(stepLocal_0 < -1) [L57] var_1_1 = (128 - (var_1_7 + var_1_7)) VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_0=400, stepLocal_1=200, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=518, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L59] EXPR var_1_7 | var_1_16 VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_0=400, stepLocal_1=200, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=518, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L59] EXPR var_1_13 & (var_1_7 | var_1_16) VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_0=400, stepLocal_1=200, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=518, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L59] COND FALSE !(var_1_7 < (var_1_13 & (var_1_7 | var_1_16))) [L93] RET step() [L94] CALL, EXPR property() [L84] EXPR var_1_13 ^ var_1_7 VAL [isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=518, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84] EXPR (((((var_1_13 ^ var_1_7) + var_1_16) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (var_1_7 + var_1_7))))) && ((var_1_5 < last_1_var_1_13) ? (var_1_7 == ((unsigned char) (var_1_8 + 1))) : 1)) && ((var_1_7 < (var_1_13 & (var_1_7 | var_1_16))) ? (var_1_9 == ((float) ((((var_1_10 + (var_1_11 - var_1_12)) < 0 ) ? -(var_1_10 + (var_1_11 - var_1_12)) : (var_1_10 + (var_1_11 - var_1_12)))))) : 1) VAL [isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=518, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84] EXPR var_1_7 | var_1_16 VAL [isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=518, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84] EXPR var_1_13 & (var_1_7 | var_1_16) VAL [isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=518, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84] EXPR (((((var_1_13 ^ var_1_7) + var_1_16) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (var_1_7 + var_1_7))))) && ((var_1_5 < last_1_var_1_13) ? (var_1_7 == ((unsigned char) (var_1_8 + 1))) : 1)) && ((var_1_7 < (var_1_13 & (var_1_7 | var_1_16))) ? (var_1_9 == ((float) ((((var_1_10 + (var_1_11 - var_1_12)) < 0 ) ? -(var_1_10 + (var_1_11 - var_1_12)) : (var_1_10 + (var_1_11 - var_1_12)))))) : 1) VAL [isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=518, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84-L85] return ((((((((var_1_13 ^ var_1_7) + var_1_16) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (var_1_7 + var_1_7))))) && ((var_1_5 < last_1_var_1_13) ? (var_1_7 == ((unsigned char) (var_1_8 + 1))) : 1)) && ((var_1_7 < (var_1_13 & (var_1_7 | var_1_16))) ? (var_1_9 == ((float) ((((var_1_10 + (var_1_11 - var_1_12)) < 0 ) ? -(var_1_10 + (var_1_11 - var_1_12)) : (var_1_10 + (var_1_11 - var_1_12)))))) : 1)) && ((! var_1_14) ? (var_1_13 == ((signed long int) var_1_8)) : ((var_1_7 > (var_1_7 + var_1_7)) ? (var_1_13 == ((signed long int) var_1_7)) : (var_1_13 == ((signed long int) var_1_16))))) && (var_1_15 == ((float) var_1_11))) && (var_1_16 == ((signed long int) var_1_7)) ; [L94] RET, EXPR property() [L94] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=518, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=-8, var_1_10=519, var_1_11=518, var_1_12=517, var_1_13=0, var_1_14=0, var_1_15=518, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 12, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1967 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1959 mSDsluCounter, 2614 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1716 mSDsCounter, 140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1460 IncrementalHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 140 mSolverCounterUnsat, 898 mSDtfsCounter, 1460 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 467 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=11, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 795 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 979 NumberOfCodeBlocks, 979 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 966 ConstructedInterpolants, 0 QuantifiedInterpolants, 5128 SizeOfPredicates, 5 NumberOfNonLiveVariables, 202 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 1800/1872 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 02:03:44,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 8c657d494f862b4e748f718e9b06d9431fa0d9b5ab160606f6187c22952013a2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:03:47,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:03:47,761 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:03:47,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:03:47,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:03:47,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:03:47,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:03:47,817 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:03:47,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:03:47,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:03:47,824 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:03:47,824 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:03:47,825 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:03:47,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:03:47,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:03:47,828 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:03:47,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:03:47,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:03:47,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:03:47,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:03:47,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:03:47,830 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:03:47,831 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:03:47,831 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:03:47,831 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:03:47,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:03:47,832 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:03:47,833 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:03:47,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:03:47,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:03:47,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:47,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:03:47,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:03:47,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:03:47,836 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:03:47,836 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:03:47,837 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:03:47,837 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:03:47,837 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:03:47,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:03:47,838 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:03:47,839 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:03:47,839 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_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c657d494f862b4e748f718e9b06d9431fa0d9b5ab160606f6187c22952013a2 [2023-11-12 02:03:48,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:03:48,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:03:48,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:03:48,353 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:03:48,354 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:03:48,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.i [2023-11-12 02:03:52,066 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:03:52,440 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:03:52,440 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.i [2023-11-12 02:03:52,461 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/data/af47d031d/d1c04cf6436b45cc8c9bbd8c5b06ea49/FLAGc76b10093 [2023-11-12 02:03:52,484 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/data/af47d031d/d1c04cf6436b45cc8c9bbd8c5b06ea49 [2023-11-12 02:03:52,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:03:52,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:03:52,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:52,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:03:52,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:03:52,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:52,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17bc94ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52, skipping insertion in model container [2023-11-12 02:03:52,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:52,550 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:03:52,734 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_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.i[917,930] [2023-11-12 02:03:52,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:52,815 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:03:52,832 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_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-33.i[917,930] [2023-11-12 02:03:52,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:52,901 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:03:52,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52 WrapperNode [2023-11-12 02:03:52,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:52,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:52,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:03:52,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:03:52,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:52,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:52,991 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2023-11-12 02:03:52,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:52,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:03:52,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:03:52,993 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:03:53,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:53,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:53,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:53,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:53,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:53,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:53,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:53,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:53,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:03:53,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:03:53,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:03:53,080 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:03:53,081 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52" (1/1) ... [2023-11-12 02:03:53,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:53,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:53,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:03:53,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:03:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:03:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:03:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:03:53,184 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:03:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:03:53,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:03:53,317 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:03:53,319 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:03:54,064 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:03:54,073 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:03:54,074 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:03:54,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:54 BoogieIcfgContainer [2023-11-12 02:03:54,077 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:03:54,080 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:03:54,081 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:03:54,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:03:54,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:03:52" (1/3) ... [2023-11-12 02:03:54,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38274439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:54, skipping insertion in model container [2023-11-12 02:03:54,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:52" (2/3) ... [2023-11-12 02:03:54,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38274439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:54, skipping insertion in model container [2023-11-12 02:03:54,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:54" (3/3) ... [2023-11-12 02:03:54,088 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-33.i [2023-11-12 02:03:54,106 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:03:54,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:03:54,151 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:03:54,158 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;@3ae0e2fb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:03:54,158 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:03:54,163 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:03:54,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:03:54,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:54,175 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:54,176 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:54,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:54,182 INFO L85 PathProgramCache]: Analyzing trace with hash -222403520, now seen corresponding path program 1 times [2023-11-12 02:03:54,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:54,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391038742] [2023-11-12 02:03:54,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:54,199 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 02:03:54,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:54,208 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 02:03:54,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 02:03:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:54,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:03:54,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-12 02:03:54,568 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:54,568 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:03:54,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391038742] [2023-11-12 02:03:54,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391038742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:54,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:54,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:03:54,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50232693] [2023-11-12 02:03:54,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:54,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:03:54,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:03:54,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:03:54,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:03:54,611 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:03:54,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:54,638 INFO L93 Difference]: Finished difference Result 75 states and 117 transitions. [2023-11-12 02:03:54,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:03:54,641 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2023-11-12 02:03:54,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:54,649 INFO L225 Difference]: With dead ends: 75 [2023-11-12 02:03:54,649 INFO L226 Difference]: Without dead ends: 37 [2023-11-12 02:03:54,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 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 02:03:54,659 INFO L413 NwaCegarLoop]: 50 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, 50 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 02:03:54,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:54,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-12 02:03:54,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-12 02:03:54,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:03:54,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2023-11-12 02:03:54,704 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 66 [2023-11-12 02:03:54,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:54,705 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 50 transitions. [2023-11-12 02:03:54,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:03:54,705 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2023-11-12 02:03:54,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:03:54,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:54,710 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:54,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 02:03:54,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 02:03:54,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:54,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:54,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1057703046, now seen corresponding path program 1 times [2023-11-12 02:03:54,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:54,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848604687] [2023-11-12 02:03:54,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:54,915 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 02:03:54,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:54,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 02:03:54,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 02:03:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:55,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:03:55,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:55,960 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-12 02:03:55,960 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:03:56,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:03:56,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848604687] [2023-11-12 02:03:56,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848604687] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:56,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [706848480] [2023-11-12 02:03:56,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:56,206 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 02:03:56,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/cvc4 [2023-11-12 02:03:56,212 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 02:03:56,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-12 02:03:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:56,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:03:56,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:57,151 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:03:57,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:57,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [706848480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:57,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:03:57,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-11-12 02:03:57,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363100950] [2023-11-12 02:03:57,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:57,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:03:57,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:03:57,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:03:57,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:03:57,159 INFO L87 Difference]: Start difference. First operand 37 states and 50 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:57,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:57,747 INFO L93 Difference]: Finished difference Result 96 states and 133 transitions. [2023-11-12 02:03:57,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:03:57,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 66 [2023-11-12 02:03:57,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:57,751 INFO L225 Difference]: With dead ends: 96 [2023-11-12 02:03:57,751 INFO L226 Difference]: Without dead ends: 62 [2023-11-12 02:03:57,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:03:57,753 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 43 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:57,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 210 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:03:57,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-12 02:03:57,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 37. [2023-11-12 02:03:57,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:03:57,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2023-11-12 02:03:57,782 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 66 [2023-11-12 02:03:57,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:57,784 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2023-11-12 02:03:57,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:03:57,785 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2023-11-12 02:03:57,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:03:57,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:57,790 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:57,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:58,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:58,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 02:03:58,197 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:03:58,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:58,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1116808390, now seen corresponding path program 1 times [2023-11-12 02:03:58,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:58,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644095298] [2023-11-12 02:03:58,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:58,199 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 02:03:58,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:58,201 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 02:03:58,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 (5)] Waiting until timeout for monitored process [2023-11-12 02:03:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:58,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:03:58,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:59,107 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-12 02:03:59,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:03:59,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:03:59,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644095298] [2023-11-12 02:03:59,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644095298] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:59,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1342439468] [2023-11-12 02:03:59,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:59,309 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 02:03:59,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/cvc4 [2023-11-12 02:03:59,313 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 02:03:59,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-12 02:04:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:04:00,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:04:00,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:04:00,570 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-12 02:04:00,570 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:04:00,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1342439468] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:04:00,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:04:00,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2023-11-12 02:04:00,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741245298] [2023-11-12 02:04:00,714 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:04:00,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:04:00,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:04:00,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:04:00,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:04:00,716 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:04:02,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:04:02,404 INFO L93 Difference]: Finished difference Result 112 states and 144 transitions. [2023-11-12 02:04:02,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:04:02,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2023-11-12 02:04:02,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:04:02,418 INFO L225 Difference]: With dead ends: 112 [2023-11-12 02:04:02,418 INFO L226 Difference]: Without dead ends: 78 [2023-11-12 02:04:02,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=152, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:04:02,421 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 34 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:04:02,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 200 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-12 02:04:02,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-12 02:04:02,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 63. [2023-11-12 02:04:02,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 41 states have internal predecessors, (45), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-12 02:04:02,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2023-11-12 02:04:02,442 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 66 [2023-11-12 02:04:02,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:04:02,443 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 81 transitions. [2023-11-12 02:04:02,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:04:02,443 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2023-11-12 02:04:02,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:04:02,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:04:02,445 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:04:02,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:04:02,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:04:02,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 02:04:02,851 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:04:02,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:04:02,852 INFO L85 PathProgramCache]: Analyzing trace with hash 723781380, now seen corresponding path program 1 times [2023-11-12 02:04:02,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:04:02,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148883928] [2023-11-12 02:04:02,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:04:02,853 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 02:04:02,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:04:02,855 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 02:04:02,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb38dc4-9786-4619-bbee-cda7e3f9c27c/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 (7)] Waiting until timeout for monitored process [2023-11-12 02:04:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:04:03,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-12 02:04:03,129 INFO L285 TraceCheckSpWp]: Computing forward predicates...