./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-43.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_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-43.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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_1aaea3e5-e76b-42e9-bde0-19f284251de4/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 459832ff19f29163e11bbddd7ad07903a7d5846182a7bd0f1d9d1891c3a83882 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:07:56,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:07:56,806 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:07:56,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:07:56,812 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:07:56,854 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:07:56,855 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:07:56,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:07:56,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:07:56,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:07:56,863 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:07:56,864 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:07:56,864 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:07:56,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:07:56,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:07:56,867 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:07:56,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:07:56,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:07:56,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:07:56,869 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:07:56,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:07:56,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:07:56,871 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:07:56,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:07:56,872 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:07:56,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:07:56,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:07:56,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:07:56,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:07:56,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:07:56,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:07:56,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:07:56,879 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:07:56,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:07:56,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:07:56,880 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:07:56,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:07:56,881 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:07:56,881 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:07:56,881 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_1aaea3e5-e76b-42e9-bde0-19f284251de4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 459832ff19f29163e11bbddd7ad07903a7d5846182a7bd0f1d9d1891c3a83882 [2023-11-12 02:07:57,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:07:57,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:07:57,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:07:57,254 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:07:57,254 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:07:57,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-43.i [2023-11-12 02:08:00,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:08:00,650 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:08:00,650 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-43.i [2023-11-12 02:08:00,661 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/data/44cee39d0/2ada1b2f88bc46268c952d82c743ba59/FLAGbf4e97d8b [2023-11-12 02:08:00,676 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/data/44cee39d0/2ada1b2f88bc46268c952d82c743ba59 [2023-11-12 02:08:00,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:08:00,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:08:00,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:00,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:08:00,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:08:00,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:00" (1/1) ... [2023-11-12 02:08:00,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f236041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:00, skipping insertion in model container [2023-11-12 02:08:00,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:00" (1/1) ... [2023-11-12 02:08:00,721 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:08:00,915 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_1aaea3e5-e76b-42e9-bde0-19f284251de4/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-43.i[916,929] [2023-11-12 02:08:00,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:01,001 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:08:01,014 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_1aaea3e5-e76b-42e9-bde0-19f284251de4/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-43.i[916,929] [2023-11-12 02:08:01,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:01,065 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:08:01,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01 WrapperNode [2023-11-12 02:08:01,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:01,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:01,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:08:01,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:08:01,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01" (1/1) ... [2023-11-12 02:08:01,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01" (1/1) ... [2023-11-12 02:08:01,142 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 184 [2023-11-12 02:08:01,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:01,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:08:01,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:08:01,156 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:08:01,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01" (1/1) ... [2023-11-12 02:08:01,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01" (1/1) ... [2023-11-12 02:08:01,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01" (1/1) ... [2023-11-12 02:08:01,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01" (1/1) ... [2023-11-12 02:08:01,176 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01" (1/1) ... [2023-11-12 02:08:01,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01" (1/1) ... [2023-11-12 02:08:01,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01" (1/1) ... [2023-11-12 02:08:01,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01" (1/1) ... [2023-11-12 02:08:01,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:08:01,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:08:01,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:08:01,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:08:01,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01" (1/1) ... [2023-11-12 02:08:01,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:01,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:01,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:08:01,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:08:01,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:08:01,291 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:08:01,292 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:08:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:08:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:08:01,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:08:01,384 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:08:01,387 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:08:01,789 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:08:01,798 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:08:01,798 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:08:01,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:01 BoogieIcfgContainer [2023-11-12 02:08:01,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:08:01,817 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:08:01,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:08:01,822 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:08:01,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:08:00" (1/3) ... [2023-11-12 02:08:01,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f11da41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:01, skipping insertion in model container [2023-11-12 02:08:01,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:01" (2/3) ... [2023-11-12 02:08:01,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f11da41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:01, skipping insertion in model container [2023-11-12 02:08:01,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:01" (3/3) ... [2023-11-12 02:08:01,828 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-43.i [2023-11-12 02:08:01,858 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:08:01,859 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:08:01,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:08:01,938 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;@6525e41b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:08:01,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:08:01,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 50 states have (on average 1.42) internal successors, (71), 51 states have internal predecessors, (71), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 02:08:01,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-12 02:08:01,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:01,968 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:01,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:01,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:01,975 INFO L85 PathProgramCache]: Analyzing trace with hash -2115570454, now seen corresponding path program 1 times [2023-11-12 02:08:02,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:02,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68747321] [2023-11-12 02:08:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:02,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:02,232 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:08:02,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824483276] [2023-11-12 02:08:02,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:02,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:02,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:02,244 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:02,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:08:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:02,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:08:02,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:08,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-12 02:08:08,477 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:08,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:08,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68747321] [2023-11-12 02:08:08,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:08:08,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824483276] [2023-11-12 02:08:08,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824483276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:08,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:08,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:08:08,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792336503] [2023-11-12 02:08:08,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:08,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:08:08,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:08,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:08:08,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:08,535 INFO L87 Difference]: Start difference. First operand has 77 states, 50 states have (on average 1.42) internal successors, (71), 51 states have internal predecessors, (71), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:08,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:08,769 INFO L93 Difference]: Finished difference Result 185 states and 312 transitions. [2023-11-12 02:08:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:08:08,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 153 [2023-11-12 02:08:08,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:08,783 INFO L225 Difference]: With dead ends: 185 [2023-11-12 02:08:08,784 INFO L226 Difference]: Without dead ends: 111 [2023-11-12 02:08:08,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:08:08,792 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 61 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:08,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 339 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:08,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-12 02:08:08,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 76. [2023-11-12 02:08:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.34) internal successors, (67), 50 states have internal predecessors, (67), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 02:08:08,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 115 transitions. [2023-11-12 02:08:08,874 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 115 transitions. Word has length 153 [2023-11-12 02:08:08,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:08,878 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 115 transitions. [2023-11-12 02:08:08,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:08,879 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 115 transitions. [2023-11-12 02:08:08,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-12 02:08:08,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:08,890 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:08,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:09,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:08:09,098 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:09,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:09,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1786369832, now seen corresponding path program 1 times [2023-11-12 02:08:09,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:09,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367976782] [2023-11-12 02:08:09,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:09,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:09,178 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:08:09,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237716733] [2023-11-12 02:08:09,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:09,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:09,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:09,188 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:09,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:08:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:09,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:08:09,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-12 02:08:13,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:13,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:13,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367976782] [2023-11-12 02:08:13,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:08:13,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237716733] [2023-11-12 02:08:13,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237716733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:13,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:13,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:08:13,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444325150] [2023-11-12 02:08:13,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:13,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:08:13,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:13,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:08:13,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:13,280 INFO L87 Difference]: Start difference. First operand 76 states and 115 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:13,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:13,455 INFO L93 Difference]: Finished difference Result 184 states and 273 transitions. [2023-11-12 02:08:13,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:08:13,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 153 [2023-11-12 02:08:13,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:13,468 INFO L225 Difference]: With dead ends: 184 [2023-11-12 02:08:13,469 INFO L226 Difference]: Without dead ends: 111 [2023-11-12 02:08:13,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:08:13,478 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 52 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:13,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 472 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:13,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-12 02:08:13,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 76. [2023-11-12 02:08:13,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.34) internal successors, (67), 50 states have internal predecessors, (67), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 02:08:13,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 115 transitions. [2023-11-12 02:08:13,501 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 115 transitions. Word has length 153 [2023-11-12 02:08:13,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:13,504 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 115 transitions. [2023-11-12 02:08:13,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:13,505 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 115 transitions. [2023-11-12 02:08:13,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-12 02:08:13,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:13,511 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:13,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:13,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:13,719 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:13,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:13,722 INFO L85 PathProgramCache]: Analyzing trace with hash -883420182, now seen corresponding path program 1 times [2023-11-12 02:08:13,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:13,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493488027] [2023-11-12 02:08:13,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:13,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:13,783 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:08:13,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589812326] [2023-11-12 02:08:13,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:13,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:13,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:13,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:13,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:08:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:13,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:08:13,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:15,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-12 02:08:15,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:15,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:15,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493488027] [2023-11-12 02:08:15,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:08:15,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589812326] [2023-11-12 02:08:15,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589812326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:15,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:15,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:08:15,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423351024] [2023-11-12 02:08:15,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:15,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:08:15,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:15,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:08:15,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:15,444 INFO L87 Difference]: Start difference. First operand 76 states and 115 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:15,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:15,652 INFO L93 Difference]: Finished difference Result 184 states and 273 transitions. [2023-11-12 02:08:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:08:15,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 153 [2023-11-12 02:08:15,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:15,657 INFO L225 Difference]: With dead ends: 184 [2023-11-12 02:08:15,657 INFO L226 Difference]: Without dead ends: 111 [2023-11-12 02:08:15,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:08:15,664 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 49 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:15,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 418 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:15,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-12 02:08:15,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 76. [2023-11-12 02:08:15,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.34) internal successors, (67), 50 states have internal predecessors, (67), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 02:08:15,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 115 transitions. [2023-11-12 02:08:15,691 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 115 transitions. Word has length 153 [2023-11-12 02:08:15,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:15,697 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 115 transitions. [2023-11-12 02:08:15,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:15,698 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 115 transitions. [2023-11-12 02:08:15,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-12 02:08:15,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:15,700 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:15,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:15,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:15,908 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:15,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:15,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1276447192, now seen corresponding path program 1 times [2023-11-12 02:08:15,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:15,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018312107] [2023-11-12 02:08:15,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:15,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:15,986 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:08:15,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1029395001] [2023-11-12 02:08:15,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:15,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:15,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:15,993 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:16,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:08:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:16,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:08:16,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:17,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-12 02:08:17,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:17,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:17,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018312107] [2023-11-12 02:08:17,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:08:17,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029395001] [2023-11-12 02:08:17,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029395001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:17,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:17,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:08:17,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341120051] [2023-11-12 02:08:17,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:17,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:08:17,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:17,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:08:17,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:17,021 INFO L87 Difference]: Start difference. First operand 76 states and 115 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:17,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:17,148 INFO L93 Difference]: Finished difference Result 184 states and 272 transitions. [2023-11-12 02:08:17,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:08:17,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 153 [2023-11-12 02:08:17,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:17,151 INFO L225 Difference]: With dead ends: 184 [2023-11-12 02:08:17,152 INFO L226 Difference]: Without dead ends: 111 [2023-11-12 02:08:17,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:08:17,154 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 48 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:17,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 396 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:17,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-12 02:08:17,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 73. [2023-11-12 02:08:17,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 47 states have internal predecessors, (63), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 02:08:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 111 transitions. [2023-11-12 02:08:17,167 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 111 transitions. Word has length 153 [2023-11-12 02:08:17,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:17,168 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 111 transitions. [2023-11-12 02:08:17,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:17,168 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 111 transitions. [2023-11-12 02:08:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-12 02:08:17,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:17,171 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:17,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:17,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:17,378 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:17,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:17,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1510269499, now seen corresponding path program 1 times [2023-11-12 02:08:17,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:17,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607728558] [2023-11-12 02:08:17,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:17,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:17,418 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:08:17,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1735463201] [2023-11-12 02:08:17,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:17,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:17,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:17,420 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:17,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:08:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:17,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:08:17,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:17,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-12 02:08:17,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:17,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:17,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607728558] [2023-11-12 02:08:17,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:08:17,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735463201] [2023-11-12 02:08:17,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735463201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:17,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:17,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:08:17,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397241634] [2023-11-12 02:08:17,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:17,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:08:17,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:17,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:08:17,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:08:17,649 INFO L87 Difference]: Start difference. First operand 73 states and 111 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:17,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:17,891 INFO L93 Difference]: Finished difference Result 190 states and 288 transitions. [2023-11-12 02:08:17,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:08:17,892 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 155 [2023-11-12 02:08:17,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:17,895 INFO L225 Difference]: With dead ends: 190 [2023-11-12 02:08:17,895 INFO L226 Difference]: Without dead ends: 120 [2023-11-12 02:08:17,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:08:17,897 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 134 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:17,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 517 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:08:17,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-12 02:08:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2023-11-12 02:08:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 80 states have (on average 1.3625) internal successors, (109), 81 states have internal predecessors, (109), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-12 02:08:17,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 177 transitions. [2023-11-12 02:08:17,915 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 177 transitions. Word has length 155 [2023-11-12 02:08:17,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:17,916 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 177 transitions. [2023-11-12 02:08:17,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:17,917 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 177 transitions. [2023-11-12 02:08:17,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-12 02:08:17,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:17,919 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:17,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:18,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:18,126 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:18,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:18,127 INFO L85 PathProgramCache]: Analyzing trace with hash 790553091, now seen corresponding path program 1 times [2023-11-12 02:08:18,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:18,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012793355] [2023-11-12 02:08:18,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:18,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:18,163 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:08:18,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1604950051] [2023-11-12 02:08:18,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:18,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:18,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:18,166 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:18,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:08:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:18,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:08:18,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:18,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-12 02:08:18,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:18,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:18,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012793355] [2023-11-12 02:08:18,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:08:18,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604950051] [2023-11-12 02:08:18,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604950051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:18,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:18,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:08:18,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443259596] [2023-11-12 02:08:18,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:18,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:08:18,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:18,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:08:18,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:08:18,386 INFO L87 Difference]: Start difference. First operand 117 states and 177 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:18,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:18,420 INFO L93 Difference]: Finished difference Result 309 states and 464 transitions. [2023-11-12 02:08:18,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:08:18,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 155 [2023-11-12 02:08:18,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:18,425 INFO L225 Difference]: With dead ends: 309 [2023-11-12 02:08:18,425 INFO L226 Difference]: Without dead ends: 195 [2023-11-12 02:08:18,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 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 02:08:18,427 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 61 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:18,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 241 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:18,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-12 02:08:18,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 133. [2023-11-12 02:08:18,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 96 states have (on average 1.3958333333333333) internal successors, (134), 97 states have internal predecessors, (134), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-12 02:08:18,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 202 transitions. [2023-11-12 02:08:18,446 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 202 transitions. Word has length 155 [2023-11-12 02:08:18,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:18,447 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 202 transitions. [2023-11-12 02:08:18,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:18,447 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 202 transitions. [2023-11-12 02:08:18,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-12 02:08:18,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:18,450 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:18,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:18,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 02:08:18,657 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:18,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:18,658 INFO L85 PathProgramCache]: Analyzing trace with hash -18793535, now seen corresponding path program 1 times [2023-11-12 02:08:18,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:18,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902964503] [2023-11-12 02:08:18,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:18,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:18,699 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:08:18,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721865652] [2023-11-12 02:08:18,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:18,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:18,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:18,717 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:18,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:08:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:18,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:08:18,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:18,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 519 proven. 45 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-11-12 02:08:18,988 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 24 proven. 45 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-12 02:08:19,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:19,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902964503] [2023-11-12 02:08:19,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:08:19,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721865652] [2023-11-12 02:08:19,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721865652] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:19,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:08:19,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-12 02:08:19,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675062431] [2023-11-12 02:08:19,170 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:19,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:08:19,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:19,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:08:19,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:08:19,174 INFO L87 Difference]: Start difference. First operand 133 states and 202 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-12 02:08:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:19,406 INFO L93 Difference]: Finished difference Result 273 states and 409 transitions. [2023-11-12 02:08:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:08:19,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 155 [2023-11-12 02:08:19,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:19,410 INFO L225 Difference]: With dead ends: 273 [2023-11-12 02:08:19,412 INFO L226 Difference]: Without dead ends: 143 [2023-11-12 02:08:19,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:08:19,414 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 105 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:19,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 169 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:08:19,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-12 02:08:19,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2023-11-12 02:08:19,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 102 states have (on average 1.3235294117647058) internal successors, (135), 103 states have internal predecessors, (135), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-12 02:08:19,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 203 transitions. [2023-11-12 02:08:19,444 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 203 transitions. Word has length 155 [2023-11-12 02:08:19,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:19,452 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 203 transitions. [2023-11-12 02:08:19,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-12 02:08:19,452 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 203 transitions. [2023-11-12 02:08:19,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-12 02:08:19,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:19,456 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:19,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:19,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-12 02:08:19,673 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:19,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:19,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1524134947, now seen corresponding path program 1 times [2023-11-12 02:08:19,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:19,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797420189] [2023-11-12 02:08:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:19,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:19,702 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:08:19,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991373825] [2023-11-12 02:08:19,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:19,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:19,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:19,704 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:19,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:08:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:19,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-12 02:08:19,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:20,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 563 proven. 39 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2023-11-12 02:08:20,041 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:20,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 30 proven. 39 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-12 02:08:20,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:20,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797420189] [2023-11-12 02:08:20,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:08:20,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991373825] [2023-11-12 02:08:20,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991373825] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:20,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:08:20,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-11-12 02:08:20,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873990577] [2023-11-12 02:08:20,274 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:20,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 02:08:20,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:20,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:08:20,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:08:20,277 INFO L87 Difference]: Start difference. First operand 141 states and 203 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2023-11-12 02:08:20,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:20,934 INFO L93 Difference]: Finished difference Result 400 states and 562 transitions. [2023-11-12 02:08:20,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-12 02:08:20,935 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 156 [2023-11-12 02:08:20,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:20,941 INFO L225 Difference]: With dead ends: 400 [2023-11-12 02:08:20,942 INFO L226 Difference]: Without dead ends: 262 [2023-11-12 02:08:20,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2023-11-12 02:08:20,946 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 321 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:20,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 467 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:08:20,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-12 02:08:20,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 154. [2023-11-12 02:08:20,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 114 states have (on average 1.3245614035087718) internal successors, (151), 115 states have internal predecessors, (151), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-12 02:08:20,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 219 transitions. [2023-11-12 02:08:20,985 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 219 transitions. Word has length 156 [2023-11-12 02:08:20,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:20,986 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 219 transitions. [2023-11-12 02:08:20,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2023-11-12 02:08:20,987 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 219 transitions. [2023-11-12 02:08:20,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-12 02:08:20,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:20,990 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:21,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:21,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:21,198 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:21,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:21,198 INFO L85 PathProgramCache]: Analyzing trace with hash -442393252, now seen corresponding path program 1 times [2023-11-12 02:08:21,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:21,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004061017] [2023-11-12 02:08:21,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:21,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:21,224 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:08:21,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [326403541] [2023-11-12 02:08:21,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:21,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:21,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:21,226 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:21,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:08:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:21,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:08:21,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:21,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-12 02:08:21,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:21,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:21,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004061017] [2023-11-12 02:08:21,425 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:08:21,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326403541] [2023-11-12 02:08:21,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326403541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:21,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:21,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:08:21,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488749048] [2023-11-12 02:08:21,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:21,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:08:21,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:21,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:08:21,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:08:21,433 INFO L87 Difference]: Start difference. First operand 154 states and 219 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:21,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:21,709 INFO L93 Difference]: Finished difference Result 313 states and 442 transitions. [2023-11-12 02:08:21,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:08:21,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 157 [2023-11-12 02:08:21,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:21,712 INFO L225 Difference]: With dead ends: 313 [2023-11-12 02:08:21,712 INFO L226 Difference]: Without dead ends: 162 [2023-11-12 02:08:21,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:08:21,714 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 120 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:21,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 181 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:08:21,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-12 02:08:21,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 158. [2023-11-12 02:08:21,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 117 states have (on average 1.2478632478632479) internal successors, (146), 118 states have internal predecessors, (146), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-12 02:08:21,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 214 transitions. [2023-11-12 02:08:21,734 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 214 transitions. Word has length 157 [2023-11-12 02:08:21,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:21,735 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 214 transitions. [2023-11-12 02:08:21,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:21,735 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 214 transitions. [2023-11-12 02:08:21,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-12 02:08:21,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:21,738 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:21,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-12 02:08:21,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:21,953 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:21,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:21,953 INFO L85 PathProgramCache]: Analyzing trace with hash -184227814, now seen corresponding path program 1 times [2023-11-12 02:08:21,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:21,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753090403] [2023-11-12 02:08:21,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:21,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:21,980 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:08:21,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [284978843] [2023-11-12 02:08:21,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:21,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:21,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:21,982 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:22,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-12 02:08:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:22,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:08:22,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:22,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 656 proven. 48 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-11-12 02:08:22,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:22,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 84 proven. 51 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2023-11-12 02:08:22,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:22,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753090403] [2023-11-12 02:08:22,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:08:22,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284978843] [2023-11-12 02:08:22,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284978843] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:22,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:08:22,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-12 02:08:22,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95865477] [2023-11-12 02:08:22,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:22,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-12 02:08:22,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:22,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-12 02:08:22,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:08:22,593 INFO L87 Difference]: Start difference. First operand 158 states and 214 transitions. Second operand has 16 states, 16 states have (on average 4.4375) internal successors, (71), 16 states have internal predecessors, (71), 5 states have call successors, (39), 3 states have call predecessors, (39), 7 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) [2023-11-12 02:08:23,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:23,102 INFO L93 Difference]: Finished difference Result 329 states and 438 transitions. [2023-11-12 02:08:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-12 02:08:23,103 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.4375) internal successors, (71), 16 states have internal predecessors, (71), 5 states have call successors, (39), 3 states have call predecessors, (39), 7 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) Word has length 157 [2023-11-12 02:08:23,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:23,105 INFO L225 Difference]: With dead ends: 329 [2023-11-12 02:08:23,106 INFO L226 Difference]: Without dead ends: 174 [2023-11-12 02:08:23,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=254, Invalid=502, Unknown=0, NotChecked=0, Total=756 [2023-11-12 02:08:23,108 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 288 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:23,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 188 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:08:23,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-11-12 02:08:23,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 170. [2023-11-12 02:08:23,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 126 states have (on average 1.1904761904761905) internal successors, (150), 127 states have internal predecessors, (150), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-12 02:08:23,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 218 transitions. [2023-11-12 02:08:23,127 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 218 transitions. Word has length 157 [2023-11-12 02:08:23,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:23,128 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 218 transitions. [2023-11-12 02:08:23,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.4375) internal successors, (71), 16 states have internal predecessors, (71), 5 states have call successors, (39), 3 states have call predecessors, (39), 7 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) [2023-11-12 02:08:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 218 transitions. [2023-11-12 02:08:23,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-12 02:08:23,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:23,131 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:23,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:23,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:08:23,338 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:23,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:23,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1205296168, now seen corresponding path program 1 times [2023-11-12 02:08:23,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:23,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944589091] [2023-11-12 02:08:23,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:23,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:23,364 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:08:23,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161637928] [2023-11-12 02:08:23,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:23,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:23,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:23,366 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:23,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-12 02:08:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:08:23,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:08:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:08:23,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:08:23,718 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:08:23,720 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:08:23,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:23,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:23,932 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:23,937 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:08:24,039 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:08:24,046 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 02:08:24,050 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-12 02:08:24,059 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-12 02:08:24,060 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-12 02:08:24,060 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-12 02:08:24,060 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-12 02:08:24,061 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-12 02:08:24,061 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-12 02:08:24,061 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short21 could not be translated [2023-11-12 02:08:24,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:08:24 BoogieIcfgContainer [2023-11-12 02:08:24,098 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:08:24,098 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:08:24,099 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:08:24,099 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:08:24,099 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:01" (3/4) ... [2023-11-12 02:08:24,102 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:08:24,104 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:08:24,105 INFO L158 Benchmark]: Toolchain (without parser) took 23424.05ms. Allocated memory was 167.8MB in the beginning and 539.0MB in the end (delta: 371.2MB). Free memory was 122.8MB in the beginning and 231.9MB in the end (delta: -109.0MB). Peak memory consumption was 264.8MB. Max. memory is 16.1GB. [2023-11-12 02:08:24,105 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:08:24,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.69ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 109.3MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:08:24,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.99ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 106.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:08:24,107 INFO L158 Benchmark]: Boogie Preprocessor took 46.03ms. Allocated memory is still 167.8MB. Free memory was 106.7MB in the beginning and 105.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:08:24,108 INFO L158 Benchmark]: RCFGBuilder took 610.87ms. Allocated memory is still 167.8MB. Free memory was 105.1MB in the beginning and 85.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:08:24,109 INFO L158 Benchmark]: TraceAbstraction took 22281.22ms. Allocated memory was 167.8MB in the beginning and 539.0MB in the end (delta: 371.2MB). Free memory was 84.7MB in the beginning and 231.9MB in the end (delta: -147.2MB). Peak memory consumption was 227.1MB. Max. memory is 16.1GB. [2023-11-12 02:08:24,109 INFO L158 Benchmark]: Witness Printer took 5.39ms. Allocated memory is still 539.0MB. Free memory is still 231.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:08:24,112 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.69ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 109.3MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.99ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 106.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.03ms. Allocated memory is still 167.8MB. Free memory was 106.7MB in the beginning and 105.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 610.87ms. Allocated memory is still 167.8MB. Free memory was 105.1MB in the beginning and 85.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 22281.22ms. Allocated memory was 167.8MB in the beginning and 539.0MB in the end (delta: 371.2MB). Free memory was 84.7MB in the beginning and 231.9MB in the end (delta: -147.2MB). Peak memory consumption was 227.1MB. Max. memory is 16.1GB. * Witness Printer took 5.39ms. Allocated memory is still 539.0MB. Free memory is still 231.9MB. 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~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short21 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 shiftLeft at line 112, overapproximation of bitwiseOr at line 54. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 64; [L23] signed long int var_1_2 = 4; [L24] signed long int var_1_3 = 64; [L25] signed long int var_1_4 = 64; [L26] signed long int var_1_5 = 0; [L27] signed short int var_1_7 = 10000; [L28] signed short int var_1_8 = 1; [L29] signed short int var_1_9 = 50; [L30] signed short int var_1_10 = 8; [L31] unsigned char var_1_13 = 2; [L32] unsigned char var_1_14 = 100; [L33] unsigned short int var_1_15 = 128; [L34] unsigned short int var_1_16 = 23647; [L35] unsigned short int var_1_17 = 32; [L36] signed char var_1_18 = 0; [L37] signed char var_1_19 = -50; [L38] unsigned char var_1_20 = 0; [L39] unsigned char var_1_21 = 0; VAL [isInitial=0, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=4, var_1_3=64, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L116] isInitial = 1 [L117] FCALL initially() [L118] COND TRUE 1 [L119] FCALL updateLastVariables() [L120] CALL updateVariables() [L72] var_1_2 = __VERIFIER_nondet_long() [L73] CALL assume_abort_if_not(var_1_2 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=64, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=64, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L73] RET assume_abort_if_not(var_1_2 >= -2147483648) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=64, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L74] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=64, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=64, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L74] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=64, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L75] var_1_3 = __VERIFIER_nondet_long() [L76] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L76] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L77] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L77] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=64, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L78] var_1_4 = __VERIFIER_nondet_long() [L79] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L79] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L80] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L80] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=0, var_1_7=10000, var_1_8=1, var_1_9=50] [L81] var_1_5 = __VERIFIER_nondet_long() [L82] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=10000, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=10000, var_1_8=1, var_1_9=50] [L82] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=10000, var_1_8=1, var_1_9=50] [L83] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=10000, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=10000, var_1_8=1, var_1_9=50] [L83] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=10000, var_1_8=1, var_1_9=50] [L84] var_1_7 = __VERIFIER_nondet_short() [L85] CALL assume_abort_if_not(var_1_7 >= 8191) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=1, var_1_9=50] [L85] RET assume_abort_if_not(var_1_7 >= 8191) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=1, var_1_9=50] [L86] CALL assume_abort_if_not(var_1_7 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=1, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=1, var_1_9=50] [L86] RET assume_abort_if_not(var_1_7 <= 16383) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=1, var_1_9=50] [L87] var_1_8 = __VERIFIER_nondet_short() [L88] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=50] [L88] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=50] [L89] CALL assume_abort_if_not(var_1_8 <= 8192) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=50] [L89] RET assume_abort_if_not(var_1_8 <= 8192) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=50] [L90] var_1_9 = __VERIFIER_nondet_short() [L91] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L91] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L92] CALL assume_abort_if_not(var_1_9 <= 8191) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L92] RET assume_abort_if_not(var_1_9 <= 8191) VAL [isInitial=1, var_1_10=8, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L93] var_1_10 = __VERIFIER_nondet_short() [L94] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L94] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L95] CALL assume_abort_if_not(var_1_10 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L95] RET assume_abort_if_not(var_1_10 <= 32766) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=100, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L96] var_1_14 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L97] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L98] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L98] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=23647, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L99] var_1_16 = __VERIFIER_nondet_ushort() [L100] CALL assume_abort_if_not(var_1_16 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L100] RET assume_abort_if_not(var_1_16 >= 16383) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L101] CALL assume_abort_if_not(var_1_16 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L101] RET assume_abort_if_not(var_1_16 <= 32767) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=-50, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L102] var_1_19 = __VERIFIER_nondet_char() [L103] CALL assume_abort_if_not(var_1_19 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L103] RET assume_abort_if_not(var_1_19 >= -127) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L104] CALL assume_abort_if_not(var_1_19 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L104] RET assume_abort_if_not(var_1_19 <= 126) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L105] var_1_21 = __VERIFIER_nondet_uchar() [L106] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L106] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L107] CALL assume_abort_if_not(var_1_21 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L107] RET assume_abort_if_not(var_1_21 <= 0) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=0, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L120] RET updateVariables() [L121] CALL step() [L43] var_1_18 = var_1_19 [L44] var_1_20 = var_1_21 [L45] signed char stepLocal_1 = var_1_18; [L46] signed long int stepLocal_0 = var_1_9 / var_1_7; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=126, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L47] EXPR var_1_8 << var_1_10 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=126, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L47] COND FALSE !(stepLocal_1 > (var_1_8 << var_1_10)) [L54] EXPR var_1_7 ^ var_1_18 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=126, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=128, var_1_16=32767, var_1_17=32, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L54] signed long int stepLocal_2 = var_1_7 ^ var_1_18; [L55] COND TRUE var_1_14 >= stepLocal_2 [L56] var_1_15 = (var_1_14 + (var_1_16 - var_1_13)) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=126, stepLocal_2=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=32766, var_1_16=32767, var_1_17=32, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L58] COND TRUE var_1_2 != ((((var_1_3) > ((var_1_4 - var_1_5))) ? (var_1_3) : ((var_1_4 - var_1_5)))) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=126, stepLocal_2=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=32766, var_1_16=32767, var_1_17=32, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L59] COND FALSE !(\read(var_1_20)) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=126, stepLocal_2=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=32766, var_1_16=32767, var_1_17=32, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L69] var_1_17 = var_1_1 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=126, stepLocal_2=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=32766, var_1_16=32767, var_1_17=64, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L121] RET step() [L122] CALL, EXPR property() [L112] EXPR ((var_1_2 != ((((var_1_3) > ((var_1_4 - var_1_5))) ? (var_1_3) : ((var_1_4 - var_1_5))))) ? (var_1_20 ? (var_1_1 == ((signed short int) (((var_1_7 - 32) + (var_1_13 + var_1_13)) - var_1_13))) : 1) : (var_1_20 ? (var_1_1 == ((signed short int) var_1_18)) : (var_1_1 == ((signed short int) var_1_13)))) && ((var_1_18 > (var_1_8 << var_1_10)) ? (((var_1_9 / var_1_7) > -25) ? (var_1_13 == ((unsigned char) var_1_14)) : (var_1_13 == ((unsigned char) var_1_14))) : 1) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=32766, var_1_16=32767, var_1_17=64, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L112] EXPR var_1_8 << var_1_10 VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=32766, var_1_16=32767, var_1_17=64, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L112] EXPR ((var_1_2 != ((((var_1_3) > ((var_1_4 - var_1_5))) ? (var_1_3) : ((var_1_4 - var_1_5))))) ? (var_1_20 ? (var_1_1 == ((signed short int) (((var_1_7 - 32) + (var_1_13 + var_1_13)) - var_1_13))) : 1) : (var_1_20 ? (var_1_1 == ((signed short int) var_1_18)) : (var_1_1 == ((signed short int) var_1_13)))) && ((var_1_18 > (var_1_8 << var_1_10)) ? (((var_1_9 / var_1_7) > -25) ? (var_1_13 == ((unsigned char) var_1_14)) : (var_1_13 == ((unsigned char) var_1_14))) : 1) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=32766, var_1_16=32767, var_1_17=64, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L112] EXPR (((var_1_2 != ((((var_1_3) > ((var_1_4 - var_1_5))) ? (var_1_3) : ((var_1_4 - var_1_5))))) ? (var_1_20 ? (var_1_1 == ((signed short int) (((var_1_7 - 32) + (var_1_13 + var_1_13)) - var_1_13))) : 1) : (var_1_20 ? (var_1_1 == ((signed short int) var_1_18)) : (var_1_1 == ((signed short int) var_1_13)))) && ((var_1_18 > (var_1_8 << var_1_10)) ? (((var_1_9 / var_1_7) > -25) ? (var_1_13 == ((unsigned char) var_1_14)) : (var_1_13 == ((unsigned char) var_1_14))) : 1)) && ((var_1_14 >= (var_1_7 ^ var_1_18)) ? (var_1_15 == ((unsigned short int) (var_1_14 + (var_1_16 - var_1_13)))) : 1) VAL [isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=32766, var_1_16=32767, var_1_17=64, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L112-L113] return ((((((var_1_2 != ((((var_1_3) > ((var_1_4 - var_1_5))) ? (var_1_3) : ((var_1_4 - var_1_5))))) ? (var_1_20 ? (var_1_1 == ((signed short int) (((var_1_7 - 32) + (var_1_13 + var_1_13)) - var_1_13))) : 1) : (var_1_20 ? (var_1_1 == ((signed short int) var_1_18)) : (var_1_1 == ((signed short int) var_1_13)))) && ((var_1_18 > (var_1_8 << var_1_10)) ? (((var_1_9 / var_1_7) > -25) ? (var_1_13 == ((unsigned char) var_1_14)) : (var_1_13 == ((unsigned char) var_1_14))) : 1)) && ((var_1_14 >= (var_1_7 ^ var_1_18)) ? (var_1_15 == ((unsigned short int) (var_1_14 + (var_1_16 - var_1_13)))) : 1)) && (var_1_17 == ((unsigned short int) var_1_1))) && (var_1_18 == ((signed char) var_1_19))) && (var_1_20 == ((unsigned char) var_1_21)) ; [L122] RET, EXPR property() [L122] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=32766, var_1_16=32767, var_1_17=64, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=32766, var_1_13=2, var_1_14=1, var_1_15=32766, var_1_16=32767, var_1_17=64, var_1_18=126, var_1_19=126, var_1_1=64, var_1_20=0, var_1_21=0, var_1_2=-1, var_1_3=-1, var_1_4=2147483647, var_1_5=2147483647, var_1_7=16383, var_1_8=124, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.0s, OverallIterations: 11, TraceHistogramMax: 24, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1270 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1239 mSDsluCounter, 3388 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2307 mSDsCounter, 385 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1446 IncrementalHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 385 mSolverCounterUnsat, 1081 mSDtfsCounter, 1446 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2054 GetRequests, 1950 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=10, InterpolantAutomatonStates: 99, 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, 10 MinimizatonAttempts, 326 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 13.8s InterpolantComputationTime, 1704 NumberOfCodeBlocks, 1704 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2002 ConstructedInterpolants, 0 QuantifiedInterpolants, 3587 SizeOfPredicates, 62 NumberOfNonLiveVariables, 3660 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 14085/14352 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 02:08:24,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-43.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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_1aaea3e5-e76b-42e9-bde0-19f284251de4/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 459832ff19f29163e11bbddd7ad07903a7d5846182a7bd0f1d9d1891c3a83882 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:08:26,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:08:27,004 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:08:27,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:08:27,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:08:27,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:08:27,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:08:27,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:08:27,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:08:27,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:08:27,044 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:08:27,044 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:08:27,045 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:08:27,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:08:27,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:08:27,047 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:08:27,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:08:27,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:08:27,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:08:27,050 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:08:27,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:08:27,051 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:08:27,052 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:08:27,053 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:08:27,053 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:08:27,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:08:27,055 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:08:27,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:08:27,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:08:27,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:08:27,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:27,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:08:27,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:08:27,059 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:08:27,059 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:08:27,060 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:08:27,061 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:08:27,061 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:08:27,061 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:08:27,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:08:27,062 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:08:27,063 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:08:27,063 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_1aaea3e5-e76b-42e9-bde0-19f284251de4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 459832ff19f29163e11bbddd7ad07903a7d5846182a7bd0f1d9d1891c3a83882 [2023-11-12 02:08:27,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:08:27,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:08:27,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:08:27,465 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:08:27,466 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:08:27,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-43.i [2023-11-12 02:08:30,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:08:30,938 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:08:30,939 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-43.i [2023-11-12 02:08:30,959 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/data/1ed1e125c/511744a1c0f84f2f8119f8c507fee12d/FLAGd59c26a9b [2023-11-12 02:08:30,978 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/data/1ed1e125c/511744a1c0f84f2f8119f8c507fee12d [2023-11-12 02:08:30,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:08:30,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:08:30,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:30,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:08:30,991 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:08:30,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:30" (1/1) ... [2023-11-12 02:08:30,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5634bc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:30, skipping insertion in model container [2023-11-12 02:08:30,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:30" (1/1) ... [2023-11-12 02:08:31,025 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:08:31,199 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_1aaea3e5-e76b-42e9-bde0-19f284251de4/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-43.i[916,929] [2023-11-12 02:08:31,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:31,311 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:08:31,332 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_1aaea3e5-e76b-42e9-bde0-19f284251de4/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-43.i[916,929] [2023-11-12 02:08:31,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:31,414 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:08:31,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31 WrapperNode [2023-11-12 02:08:31,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:31,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:31,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:08:31,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:08:31,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31" (1/1) ... [2023-11-12 02:08:31,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31" (1/1) ... [2023-11-12 02:08:31,507 INFO L138 Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2023-11-12 02:08:31,509 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:31,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:08:31,511 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:08:31,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:08:31,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31" (1/1) ... [2023-11-12 02:08:31,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31" (1/1) ... [2023-11-12 02:08:31,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31" (1/1) ... [2023-11-12 02:08:31,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31" (1/1) ... [2023-11-12 02:08:31,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31" (1/1) ... [2023-11-12 02:08:31,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31" (1/1) ... [2023-11-12 02:08:31,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31" (1/1) ... [2023-11-12 02:08:31,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31" (1/1) ... [2023-11-12 02:08:31,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:08:31,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:08:31,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:08:31,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:08:31,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31" (1/1) ... [2023-11-12 02:08:31,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:31,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:31,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:08:31,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:08:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:08:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:08:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:08:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:08:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:08:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:08:31,860 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:08:31,862 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:08:32,363 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:08:32,380 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:08:32,381 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:08:32,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:32 BoogieIcfgContainer [2023-11-12 02:08:32,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:08:32,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:08:32,390 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:08:32,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:08:32,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:08:30" (1/3) ... [2023-11-12 02:08:32,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c6f394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:32, skipping insertion in model container [2023-11-12 02:08:32,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:31" (2/3) ... [2023-11-12 02:08:32,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c6f394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:32, skipping insertion in model container [2023-11-12 02:08:32,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:32" (3/3) ... [2023-11-12 02:08:32,399 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-43.i [2023-11-12 02:08:32,423 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:08:32,423 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:08:32,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:08:32,493 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;@1468d838, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:08:32,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:08:32,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 37 states have internal predecessors, (47), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 02:08:32,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-12 02:08:32,516 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:32,517 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:32,518 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:32,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:32,524 INFO L85 PathProgramCache]: Analyzing trace with hash -791064050, now seen corresponding path program 1 times [2023-11-12 02:08:32,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:08:32,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300191747] [2023-11-12 02:08:32,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:32,540 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 02:08:32,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:08:32,548 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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 02:08:32,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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 02:08:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:32,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:08:32,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:32,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2023-11-12 02:08:32,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:32,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:08:32,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300191747] [2023-11-12 02:08:32,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300191747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:32,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:32,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:08:32,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189199767] [2023-11-12 02:08:32,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:32,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:08:32,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:08:32,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:08:32,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:08:32,919 INFO L87 Difference]: Start difference. First operand has 63 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 37 states have internal predecessors, (47), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-12 02:08:32,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:32,964 INFO L93 Difference]: Finished difference Result 119 states and 208 transitions. [2023-11-12 02:08:32,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:08:32,970 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 147 [2023-11-12 02:08:32,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:32,985 INFO L225 Difference]: With dead ends: 119 [2023-11-12 02:08:32,985 INFO L226 Difference]: Without dead ends: 59 [2023-11-12 02:08:32,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 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 02:08:32,999 INFO L413 NwaCegarLoop]: 88 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, 88 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 02:08:33,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:33,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-12 02:08:33,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-12 02:08:33,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 02:08:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 88 transitions. [2023-11-12 02:08:33,091 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 88 transitions. Word has length 147 [2023-11-12 02:08:33,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:33,092 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 88 transitions. [2023-11-12 02:08:33,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-12 02:08:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 88 transitions. [2023-11-12 02:08:33,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-12 02:08:33,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:33,108 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:33,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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 02:08:33,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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 02:08:33,325 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:33,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:33,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1986199026, now seen corresponding path program 1 times [2023-11-12 02:08:33,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:08:33,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311512030] [2023-11-12 02:08:33,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:33,328 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 02:08:33,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:08:33,330 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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 02:08:33,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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 02:08:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:33,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:08:33,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:33,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-12 02:08:33,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:33,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:08:33,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311512030] [2023-11-12 02:08:33,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311512030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:33,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:33,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:08:33,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295056019] [2023-11-12 02:08:33,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:33,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:08:33,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:08:33,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:08:33,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:08:33,779 INFO L87 Difference]: Start difference. First operand 59 states and 88 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:34,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:34,343 INFO L93 Difference]: Finished difference Result 123 states and 180 transitions. [2023-11-12 02:08:34,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:08:34,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 147 [2023-11-12 02:08:34,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:34,348 INFO L225 Difference]: With dead ends: 123 [2023-11-12 02:08:34,348 INFO L226 Difference]: Without dead ends: 67 [2023-11-12 02:08:34,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:08:34,352 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 87 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:34,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 119 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:08:34,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-12 02:08:34,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2023-11-12 02:08:34,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 02:08:34,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 89 transitions. [2023-11-12 02:08:34,374 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 89 transitions. Word has length 147 [2023-11-12 02:08:34,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:34,375 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 89 transitions. [2023-11-12 02:08:34,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-12 02:08:34,376 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 89 transitions. [2023-11-12 02:08:34,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-12 02:08:34,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:34,379 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:08:34,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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 02:08:34,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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 02:08:34,588 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:34,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:34,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1928940724, now seen corresponding path program 1 times [2023-11-12 02:08:34,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:08:34,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79418426] [2023-11-12 02:08:34,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:34,591 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 02:08:34,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:08:34,595 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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 02:08:34,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aaea3e5-e76b-42e9-bde0-19f284251de4/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 (4)] Waiting until timeout for monitored process [2023-11-12 02:08:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:34,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-12 02:08:34,860 INFO L285 TraceCheckSpWp]: Computing forward predicates...