./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1 --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 3559b3594a82cd675e67391d8043202d21aa0bea5a13d40b68d97450424826dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:35:03,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:35:03,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:35:03,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:35:03,629 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:35:03,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:35:03,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:35:03,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:35:03,656 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:35:03,656 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:35:03,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:35:03,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:35:03,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:35:03,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:35:03,657 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:35:03,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:35:03,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:35:03,657 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:35:03,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:35:03,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:35:03,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:35:03,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:35:03,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:35:03,658 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:35:03,658 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:35:03,658 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:35:03,658 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:35:03,658 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:35:03,659 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:35:03,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:35:03,659 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:35:03,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:35:03,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:35:03,659 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:35:03,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:35:03,659 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:35:03,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:35:03,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:35:03,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:35:03,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:35:03,660 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:35:03,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:35:03,660 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:35:03,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:35:03,660 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:35:03,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:35:03,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:35:03,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:35:03,660 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1 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 -> 3559b3594a82cd675e67391d8043202d21aa0bea5a13d40b68d97450424826dd [2024-12-02 07:35:03,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:35:03,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:35:03,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:35:03,958 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:35:03,958 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:35:03,960 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i [2024-12-02 07:35:07,101 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/data/40fc8dbf4/a63b4afb36d443f3ad94d2f6c536c847/FLAG070538ec2 [2024-12-02 07:35:07,342 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:35:07,342 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i [2024-12-02 07:35:07,350 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/data/40fc8dbf4/a63b4afb36d443f3ad94d2f6c536c847/FLAG070538ec2 [2024-12-02 07:35:07,366 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/data/40fc8dbf4/a63b4afb36d443f3ad94d2f6c536c847 [2024-12-02 07:35:07,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:35:07,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:35:07,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:35:07,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:35:07,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:35:07,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5cc44e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07, skipping insertion in model container [2024-12-02 07:35:07,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,392 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:35:07,515 WARN L250 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_3db3462c-325d-4fa5-9e04-34ab6014f304/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i[916,929] [2024-12-02 07:35:07,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:35:07,572 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:35:07,582 WARN L250 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_3db3462c-325d-4fa5-9e04-34ab6014f304/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i[916,929] [2024-12-02 07:35:07,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:35:07,623 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:35:07,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07 WrapperNode [2024-12-02 07:35:07,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:35:07,625 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:35:07,625 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:35:07,625 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:35:07,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,672 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 154 [2024-12-02 07:35:07,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:35:07,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:35:07,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:35:07,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:35:07,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,686 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,698 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 07:35:07,698 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,705 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:35:07,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:35:07,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:35:07,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:35:07,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (1/1) ... [2024-12-02 07:35:07,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:35:07,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:35:07,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:35:07,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:35:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:35:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:35:07,789 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:35:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:35:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:35:07,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:35:07,871 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:35:07,873 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:35:08,157 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-02 07:35:08,157 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:35:08,167 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:35:08,167 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:35:08,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:35:08 BoogieIcfgContainer [2024-12-02 07:35:08,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:35:08,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:35:08,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:35:08,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:35:08,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:35:07" (1/3) ... [2024-12-02 07:35:08,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412a2a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:35:08, skipping insertion in model container [2024-12-02 07:35:08,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:07" (2/3) ... [2024-12-02 07:35:08,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412a2a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:35:08, skipping insertion in model container [2024-12-02 07:35:08,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:35:08" (3/3) ... [2024-12-02 07:35:08,177 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-55.i [2024-12-02 07:35:08,193 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:35:08,194 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-55.i that has 2 procedures, 66 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:35:08,251 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:35:08,263 INFO L333 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, 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;@677c156e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:35:08,263 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:35:08,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 48 states have internal predecessors, (65), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:35:08,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 07:35:08,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:08,279 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:08,280 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:08,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:08,286 INFO L85 PathProgramCache]: Analyzing trace with hash 518439688, now seen corresponding path program 1 times [2024-12-02 07:35:08,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:08,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318812732] [2024-12-02 07:35:08,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:08,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 07:35:08,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:08,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318812732] [2024-12-02 07:35:08,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318812732] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:35:08,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493349411] [2024-12-02 07:35:08,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:08,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:35:08,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:35:08,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:35:08,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:35:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:08,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:35:08,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:35:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 07:35:08,728 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:35:08,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493349411] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:08,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:35:08,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:35:08,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886971348] [2024-12-02 07:35:08,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:08,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:35:08,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:08,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:35:08,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:35:08,755 INFO L87 Difference]: Start difference. First operand has 66 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 48 states have internal predecessors, (65), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:35:08,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:08,777 INFO L93 Difference]: Finished difference Result 125 states and 204 transitions. [2024-12-02 07:35:08,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:35:08,779 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2024-12-02 07:35:08,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:08,784 INFO L225 Difference]: With dead ends: 125 [2024-12-02 07:35:08,784 INFO L226 Difference]: Without dead ends: 62 [2024-12-02 07:35:08,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:35:08,790 INFO L435 NwaCegarLoop]: 90 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, 90 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 [2024-12-02 07:35:08,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:35:08,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-12-02 07:35:08,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-12-02 07:35:08,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 44 states have internal predecessors, (58), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:35:08,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2024-12-02 07:35:08,828 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 106 [2024-12-02 07:35:08,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:08,828 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2024-12-02 07:35:08,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:35:08,829 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2024-12-02 07:35:08,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 07:35:08,831 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:08,831 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:08,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:35:09,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:35:09,032 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:09,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:09,033 INFO L85 PathProgramCache]: Analyzing trace with hash 948806408, now seen corresponding path program 1 times [2024-12-02 07:35:09,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:09,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114697270] [2024-12-02 07:35:09,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:09,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:09,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:09,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114697270] [2024-12-02 07:35:09,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114697270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:09,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:09,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:35:09,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134052483] [2024-12-02 07:35:09,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:09,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:35:09,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:09,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:35:09,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:35:09,205 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:09,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:09,244 INFO L93 Difference]: Finished difference Result 149 states and 215 transitions. [2024-12-02 07:35:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:35:09,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-12-02 07:35:09,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:09,247 INFO L225 Difference]: With dead ends: 149 [2024-12-02 07:35:09,247 INFO L226 Difference]: Without dead ends: 90 [2024-12-02 07:35:09,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:35:09,249 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 38 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:09,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 168 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:35:09,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-12-02 07:35:09,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 63. [2024-12-02 07:35:09,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 45 states have internal predecessors, (59), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:35:09,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 91 transitions. [2024-12-02 07:35:09,260 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 91 transitions. Word has length 106 [2024-12-02 07:35:09,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:09,262 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 91 transitions. [2024-12-02 07:35:09,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:09,262 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 91 transitions. [2024-12-02 07:35:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 07:35:09,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:09,264 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:09,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:35:09,265 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:09,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:09,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1206971846, now seen corresponding path program 1 times [2024-12-02 07:35:09,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:09,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565558767] [2024-12-02 07:35:09,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:09,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:09,432 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:09,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:09,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565558767] [2024-12-02 07:35:09,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565558767] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:09,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:09,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:35:09,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982941948] [2024-12-02 07:35:09,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:09,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:35:09,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:09,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:35:09,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:35:09,434 INFO L87 Difference]: Start difference. First operand 63 states and 91 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:09,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:09,482 INFO L93 Difference]: Finished difference Result 123 states and 179 transitions. [2024-12-02 07:35:09,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:35:09,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-12-02 07:35:09,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:09,484 INFO L225 Difference]: With dead ends: 123 [2024-12-02 07:35:09,484 INFO L226 Difference]: Without dead ends: 63 [2024-12-02 07:35:09,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:35:09,486 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:09,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:35:09,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-12-02 07:35:09,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-12-02 07:35:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 45 states have (on average 1.288888888888889) internal successors, (58), 45 states have internal predecessors, (58), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:35:09,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 90 transitions. [2024-12-02 07:35:09,495 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 90 transitions. Word has length 106 [2024-12-02 07:35:09,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:09,496 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 90 transitions. [2024-12-02 07:35:09,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:09,496 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 90 transitions. [2024-12-02 07:35:09,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 07:35:09,498 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:09,498 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:09,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:35:09,499 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:09,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:09,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2119503871, now seen corresponding path program 1 times [2024-12-02 07:35:09,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:09,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75838274] [2024-12-02 07:35:09,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:09,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:10,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:10,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75838274] [2024-12-02 07:35:10,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75838274] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:10,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:10,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:35:10,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076045122] [2024-12-02 07:35:10,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:10,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:35:10,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:10,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:35:10,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:35:10,102 INFO L87 Difference]: Start difference. First operand 63 states and 90 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:10,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:10,274 INFO L93 Difference]: Finished difference Result 150 states and 212 transitions. [2024-12-02 07:35:10,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:35:10,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 108 [2024-12-02 07:35:10,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:10,276 INFO L225 Difference]: With dead ends: 150 [2024-12-02 07:35:10,277 INFO L226 Difference]: Without dead ends: 90 [2024-12-02 07:35:10,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:35:10,278 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 29 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:10,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 277 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:35:10,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-12-02 07:35:10,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2024-12-02 07:35:10,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 57 states have internal predecessors, (74), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:35:10,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 106 transitions. [2024-12-02 07:35:10,288 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 106 transitions. Word has length 108 [2024-12-02 07:35:10,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:10,289 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 106 transitions. [2024-12-02 07:35:10,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:10,289 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 106 transitions. [2024-12-02 07:35:10,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 07:35:10,291 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:10,291 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:10,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:35:10,291 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:10,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:10,292 INFO L85 PathProgramCache]: Analyzing trace with hash -934410091, now seen corresponding path program 1 times [2024-12-02 07:35:10,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:10,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62812439] [2024-12-02 07:35:10,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:10,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:10,472 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:10,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:10,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62812439] [2024-12-02 07:35:10,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62812439] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:10,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:10,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:35:10,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931396244] [2024-12-02 07:35:10,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:10,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:35:10,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:10,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:35:10,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:35:10,474 INFO L87 Difference]: Start difference. First operand 75 states and 106 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:10,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:10,549 INFO L93 Difference]: Finished difference Result 206 states and 295 transitions. [2024-12-02 07:35:10,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:35:10,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 109 [2024-12-02 07:35:10,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:10,552 INFO L225 Difference]: With dead ends: 206 [2024-12-02 07:35:10,552 INFO L226 Difference]: Without dead ends: 134 [2024-12-02 07:35:10,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:35:10,553 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 49 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:10,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 176 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:35:10,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-12-02 07:35:10,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 131. [2024-12-02 07:35:10,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 96 states have (on average 1.2604166666666667) internal successors, (121), 96 states have internal predecessors, (121), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-12-02 07:35:10,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 185 transitions. [2024-12-02 07:35:10,574 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 185 transitions. Word has length 109 [2024-12-02 07:35:10,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:10,575 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 185 transitions. [2024-12-02 07:35:10,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:10,575 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 185 transitions. [2024-12-02 07:35:10,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 07:35:10,578 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:10,578 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:10,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:35:10,578 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:10,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:10,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1847134472, now seen corresponding path program 1 times [2024-12-02 07:35:10,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:10,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030720678] [2024-12-02 07:35:10,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:10,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:10,750 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:10,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:10,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030720678] [2024-12-02 07:35:10,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030720678] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:10,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:10,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:35:10,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321070890] [2024-12-02 07:35:10,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:10,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:35:10,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:10,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:35:10,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:35:10,753 INFO L87 Difference]: Start difference. First operand 131 states and 185 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:10,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:10,957 INFO L93 Difference]: Finished difference Result 376 states and 527 transitions. [2024-12-02 07:35:10,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:35:10,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2024-12-02 07:35:10,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:10,961 INFO L225 Difference]: With dead ends: 376 [2024-12-02 07:35:10,961 INFO L226 Difference]: Without dead ends: 304 [2024-12-02 07:35:10,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:35:10,963 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 147 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:10,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 332 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:35:10,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-12-02 07:35:11,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 257. [2024-12-02 07:35:11,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 188 states have (on average 1.2606382978723405) internal successors, (237), 188 states have internal predecessors, (237), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:35:11,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 365 transitions. [2024-12-02 07:35:11,011 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 365 transitions. Word has length 110 [2024-12-02 07:35:11,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:11,012 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 365 transitions. [2024-12-02 07:35:11,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:11,012 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 365 transitions. [2024-12-02 07:35:11,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 07:35:11,014 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:11,014 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:11,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:35:11,015 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:11,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:11,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1167969146, now seen corresponding path program 1 times [2024-12-02 07:35:11,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:11,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053530576] [2024-12-02 07:35:11,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:11,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:12,445 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:12,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:12,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053530576] [2024-12-02 07:35:12,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053530576] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:12,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:12,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:35:12,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628908986] [2024-12-02 07:35:12,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:12,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:35:12,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:12,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:35:12,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:35:12,447 INFO L87 Difference]: Start difference. First operand 257 states and 365 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:12,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:12,902 INFO L93 Difference]: Finished difference Result 576 states and 804 transitions. [2024-12-02 07:35:12,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:35:12,902 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2024-12-02 07:35:12,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:12,905 INFO L225 Difference]: With dead ends: 576 [2024-12-02 07:35:12,905 INFO L226 Difference]: Without dead ends: 322 [2024-12-02 07:35:12,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:35:12,907 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 181 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:12,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 572 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:35:12,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-12-02 07:35:12,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 247. [2024-12-02 07:35:12,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 178 states have (on average 1.2303370786516854) internal successors, (219), 178 states have internal predecessors, (219), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:35:12,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2024-12-02 07:35:12,937 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 110 [2024-12-02 07:35:12,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:12,938 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2024-12-02 07:35:12,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:12,938 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2024-12-02 07:35:12,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 07:35:12,940 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:12,940 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:12,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:35:12,940 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:12,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:12,941 INFO L85 PathProgramCache]: Analyzing trace with hash 121451019, now seen corresponding path program 1 times [2024-12-02 07:35:12,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:12,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962980492] [2024-12-02 07:35:12,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:12,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:13,019 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:13,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:13,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962980492] [2024-12-02 07:35:13,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962980492] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:13,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:13,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:35:13,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10309582] [2024-12-02 07:35:13,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:13,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:35:13,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:13,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:35:13,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:35:13,022 INFO L87 Difference]: Start difference. First operand 247 states and 347 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:13,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:13,068 INFO L93 Difference]: Finished difference Result 491 states and 691 transitions. [2024-12-02 07:35:13,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:35:13,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2024-12-02 07:35:13,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:13,071 INFO L225 Difference]: With dead ends: 491 [2024-12-02 07:35:13,071 INFO L226 Difference]: Without dead ends: 247 [2024-12-02 07:35:13,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:35:13,072 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:13,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:35:13,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-12-02 07:35:13,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2024-12-02 07:35:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 178 states have (on average 1.2078651685393258) internal successors, (215), 178 states have internal predecessors, (215), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 07:35:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 343 transitions. [2024-12-02 07:35:13,090 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 343 transitions. Word has length 111 [2024-12-02 07:35:13,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:13,091 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 343 transitions. [2024-12-02 07:35:13,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:13,091 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 343 transitions. [2024-12-02 07:35:13,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 07:35:13,092 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:13,092 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:13,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:35:13,093 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:13,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:13,093 INFO L85 PathProgramCache]: Analyzing trace with hash 869755760, now seen corresponding path program 1 times [2024-12-02 07:35:13,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:13,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557478024] [2024-12-02 07:35:13,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:13,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:13,288 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:13,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:13,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557478024] [2024-12-02 07:35:13,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557478024] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:13,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:13,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:35:13,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817260989] [2024-12-02 07:35:13,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:13,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:35:13,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:13,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:35:13,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:35:13,291 INFO L87 Difference]: Start difference. First operand 247 states and 343 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:13,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:13,562 INFO L93 Difference]: Finished difference Result 563 states and 758 transitions. [2024-12-02 07:35:13,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:35:13,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 113 [2024-12-02 07:35:13,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:13,566 INFO L225 Difference]: With dead ends: 563 [2024-12-02 07:35:13,566 INFO L226 Difference]: Without dead ends: 423 [2024-12-02 07:35:13,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:35:13,567 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 151 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:13,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 366 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:35:13,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-12-02 07:35:13,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 299. [2024-12-02 07:35:13,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 213 states have (on average 1.1971830985915493) internal successors, (255), 213 states have internal predecessors, (255), 80 states have call successors, (80), 5 states have call predecessors, (80), 5 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 07:35:13,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 415 transitions. [2024-12-02 07:35:13,598 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 415 transitions. Word has length 113 [2024-12-02 07:35:13,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:13,598 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 415 transitions. [2024-12-02 07:35:13,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:13,599 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 415 transitions. [2024-12-02 07:35:13,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:35:13,600 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:13,600 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:13,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:35:13,600 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:13,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:13,601 INFO L85 PathProgramCache]: Analyzing trace with hash -138710604, now seen corresponding path program 1 times [2024-12-02 07:35:13,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:13,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092387414] [2024-12-02 07:35:13,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:13,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:13,650 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:13,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:13,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092387414] [2024-12-02 07:35:13,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092387414] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:13,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:13,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:35:13,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259292842] [2024-12-02 07:35:13,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:13,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:35:13,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:13,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:35:13,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:35:13,652 INFO L87 Difference]: Start difference. First operand 299 states and 415 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:13,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:13,718 INFO L93 Difference]: Finished difference Result 545 states and 768 transitions. [2024-12-02 07:35:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:35:13,719 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 115 [2024-12-02 07:35:13,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:13,722 INFO L225 Difference]: With dead ends: 545 [2024-12-02 07:35:13,722 INFO L226 Difference]: Without dead ends: 411 [2024-12-02 07:35:13,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:35:13,723 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 69 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:13,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 157 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:35:13,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-12-02 07:35:13,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 277. [2024-12-02 07:35:13,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 191 states have (on average 1.2094240837696335) internal successors, (231), 191 states have internal predecessors, (231), 80 states have call successors, (80), 5 states have call predecessors, (80), 5 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 07:35:13,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 391 transitions. [2024-12-02 07:35:13,755 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 391 transitions. Word has length 115 [2024-12-02 07:35:13,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:13,755 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 391 transitions. [2024-12-02 07:35:13,755 INFO L472 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:13,756 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 391 transitions. [2024-12-02 07:35:13,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:35:13,757 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:13,757 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:13,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:35:13,757 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:13,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:13,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1695558761, now seen corresponding path program 1 times [2024-12-02 07:35:13,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:13,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019896245] [2024-12-02 07:35:13,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:13,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:14,159 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:14,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:14,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019896245] [2024-12-02 07:35:14,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019896245] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:14,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:14,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:35:14,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358509669] [2024-12-02 07:35:14,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:14,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:35:14,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:14,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:35:14,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:35:14,161 INFO L87 Difference]: Start difference. First operand 277 states and 391 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:14,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:14,468 INFO L93 Difference]: Finished difference Result 603 states and 823 transitions. [2024-12-02 07:35:14,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:35:14,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 115 [2024-12-02 07:35:14,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:14,472 INFO L225 Difference]: With dead ends: 603 [2024-12-02 07:35:14,472 INFO L226 Difference]: Without dead ends: 361 [2024-12-02 07:35:14,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:35:14,474 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 83 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:14,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 309 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:35:14,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-12-02 07:35:14,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 279. [2024-12-02 07:35:14,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 193 states have (on average 1.2124352331606219) internal successors, (234), 193 states have internal predecessors, (234), 80 states have call successors, (80), 5 states have call predecessors, (80), 5 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 07:35:14,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 394 transitions. [2024-12-02 07:35:14,521 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 394 transitions. Word has length 115 [2024-12-02 07:35:14,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:14,521 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 394 transitions. [2024-12-02 07:35:14,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:14,522 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 394 transitions. [2024-12-02 07:35:14,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 07:35:14,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:14,523 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:14,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:35:14,524 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:14,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:14,524 INFO L85 PathProgramCache]: Analyzing trace with hash 259368120, now seen corresponding path program 1 times [2024-12-02 07:35:14,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:14,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596314800] [2024-12-02 07:35:14,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:14,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:16,368 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 36 proven. 9 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 07:35:16,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:16,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596314800] [2024-12-02 07:35:16,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596314800] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:35:16,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991872477] [2024-12-02 07:35:16,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:16,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:35:16,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:35:16,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:35:16,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:35:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:16,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 07:35:16,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:35:17,229 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 171 proven. 51 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2024-12-02 07:35:17,229 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:35:18,485 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 36 proven. 9 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 07:35:18,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991872477] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:35:18,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:35:18,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2024-12-02 07:35:18,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009084425] [2024-12-02 07:35:18,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:35:18,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 07:35:18,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:18,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 07:35:18,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:35:18,488 INFO L87 Difference]: Start difference. First operand 279 states and 394 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-12-02 07:35:20,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:20,002 INFO L93 Difference]: Finished difference Result 403 states and 519 transitions. [2024-12-02 07:35:20,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 07:35:20,003 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 117 [2024-12-02 07:35:20,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:20,005 INFO L225 Difference]: With dead ends: 403 [2024-12-02 07:35:20,005 INFO L226 Difference]: Without dead ends: 401 [2024-12-02 07:35:20,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=492, Invalid=1670, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 07:35:20,007 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 367 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:20,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 610 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:35:20,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-12-02 07:35:20,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 341. [2024-12-02 07:35:20,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 246 states have (on average 1.1829268292682926) internal successors, (291), 246 states have internal predecessors, (291), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 07:35:20,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 451 transitions. [2024-12-02 07:35:20,055 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 451 transitions. Word has length 117 [2024-12-02 07:35:20,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:20,055 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 451 transitions. [2024-12-02 07:35:20,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-12-02 07:35:20,056 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 451 transitions. [2024-12-02 07:35:20,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 07:35:20,056 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:20,056 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:20,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 07:35:20,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 07:35:20,257 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:20,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:20,258 INFO L85 PathProgramCache]: Analyzing trace with hash -852044625, now seen corresponding path program 1 times [2024-12-02 07:35:20,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:20,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669552127] [2024-12-02 07:35:20,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:20,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 36 proven. 9 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 07:35:20,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:35:20,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669552127] [2024-12-02 07:35:20,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669552127] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:35:20,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372281737] [2024-12-02 07:35:20,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:20,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:35:20,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:35:20,411 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:35:20,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:35:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:20,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 07:35:20,501 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:35:20,627 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 183 proven. 9 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 07:35:20,627 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:35:20,844 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 36 proven. 9 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 07:35:20,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372281737] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:35:20,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:35:20,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-12-02 07:35:20,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546800099] [2024-12-02 07:35:20,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:35:20,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:35:20,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:35:20,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:35:20,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:35:20,847 INFO L87 Difference]: Start difference. First operand 341 states and 451 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 07:35:21,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:21,287 INFO L93 Difference]: Finished difference Result 552 states and 713 transitions. [2024-12-02 07:35:21,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:35:21,287 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 118 [2024-12-02 07:35:21,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:21,290 INFO L225 Difference]: With dead ends: 552 [2024-12-02 07:35:21,290 INFO L226 Difference]: Without dead ends: 378 [2024-12-02 07:35:21,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:35:21,292 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 260 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:21,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 253 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:35:21,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-12-02 07:35:21,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 353. [2024-12-02 07:35:21,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 255 states have (on average 1.1529411764705881) internal successors, (294), 255 states have internal predecessors, (294), 80 states have call successors, (80), 17 states have call predecessors, (80), 17 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 07:35:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 454 transitions. [2024-12-02 07:35:21,316 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 454 transitions. Word has length 118 [2024-12-02 07:35:21,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:21,317 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 454 transitions. [2024-12-02 07:35:21,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 07:35:21,317 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 454 transitions. [2024-12-02 07:35:21,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 07:35:21,318 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:21,318 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:21,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:35:21,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:35:21,519 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:21,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:21,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1863161875, now seen corresponding path program 1 times [2024-12-02 07:35:21,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:35:21,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656111965] [2024-12-02 07:35:21,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:21,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:35:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:35:21,556 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:35:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:35:21,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:35:21,638 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:35:21,639 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:35:21,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:35:21,644 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:21,715 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:35:21,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:35:21 BoogieIcfgContainer [2024-12-02 07:35:21,719 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:35:21,719 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:35:21,719 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:35:21,719 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:35:21,720 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:35:08" (3/4) ... [2024-12-02 07:35:21,722 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:35:21,723 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:35:21,724 INFO L158 Benchmark]: Toolchain (without parser) took 14354.39ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 117.7MB in the beginning and 187.8MB in the end (delta: -70.1MB). Peak memory consumption was 193.3MB. Max. memory is 16.1GB. [2024-12-02 07:35:21,724 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:35:21,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.05ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 104.8MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:35:21,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.85ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 102.4MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:35:21,725 INFO L158 Benchmark]: Boogie Preprocessor took 43.76ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 99.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:35:21,725 INFO L158 Benchmark]: RCFGBuilder took 450.59ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 81.6MB in the end (delta: 18.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:35:21,726 INFO L158 Benchmark]: TraceAbstraction took 13548.38ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 80.9MB in the beginning and 192.0MB in the end (delta: -111.1MB). Peak memory consumption was 168.1MB. Max. memory is 16.1GB. [2024-12-02 07:35:21,726 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 411.0MB. Free memory was 192.0MB in the beginning and 187.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:35:21,728 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.05ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 104.8MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.85ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 102.4MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.76ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 99.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 450.59ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 81.6MB in the end (delta: 18.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 13548.38ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 80.9MB in the beginning and 192.0MB in the end (delta: -111.1MB). Peak memory consumption was 168.1MB. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 411.0MB. Free memory was 192.0MB in the beginning and 187.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 shiftRight at line 60, overapproximation of shiftRight at line 60, overapproximation of shiftRight at line 101, overapproximation of shiftRight at line 101. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 10; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_5 = 0; [L25] signed long int var_1_7 = 256; [L26] signed long int var_1_8 = 63; [L27] signed long int var_1_9 = 1; [L28] signed long int var_1_10 = 0; [L29] signed long int var_1_11 = 16; [L30] signed long int var_1_12 = -5; [L31] unsigned char var_1_14 = 128; [L32] signed long int var_1_15 = 4; [L33] unsigned long int var_1_16 = 500; [L34] unsigned char var_1_17 = 2; [L35] unsigned char var_1_18 = 100; [L36] signed long int last_1_var_1_12 = -5; [L37] unsigned char last_1_var_1_17 = 2; VAL [isInitial=0, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L105] isInitial = 1 [L106] FCALL initially() [L108] CALL updateLastVariables() [L97] last_1_var_1_12 = var_1_12 [L98] last_1_var_1_17 = var_1_17 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L108] RET updateLastVariables() [L109] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L72] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L73] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L73] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L74] var_1_5 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_7=256, var_1_8=63, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_7=256, var_1_8=63, var_1_9=1] [L75] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_7=256, var_1_8=63, var_1_9=1] [L76] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=63, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=63, var_1_9=1] [L76] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=63, var_1_9=1] [L77] var_1_8 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=1] [L78] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=1] [L79] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=1] [L79] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=1] [L80] var_1_9 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L81] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L82] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L82] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L83] var_1_10 = __VERIFIER_nondet_long() [L84] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L84] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L85] CALL assume_abort_if_not(var_1_10 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L85] RET assume_abort_if_not(var_1_10 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L86] var_1_11 = __VERIFIER_nondet_long() [L87] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L87] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L88] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L88] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L89] var_1_14 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_14 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L90] RET assume_abort_if_not(var_1_14 >= 127) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L91] CALL assume_abort_if_not(var_1_14 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L91] RET assume_abort_if_not(var_1_14 <= 255) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L92] var_1_18 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L93] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L94] CALL assume_abort_if_not(var_1_18 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=-2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=-2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L94] RET assume_abort_if_not(var_1_18 <= 254) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=-2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L109] RET updateVariables() [L110] CALL step() [L41] unsigned char stepLocal_1 = last_1_var_1_12 >= last_1_var_1_17; [L42] signed long int stepLocal_0 = last_1_var_1_17; VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=-2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L43] COND FALSE !(\read(var_1_2)) [L52] var_1_1 = last_1_var_1_17 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L54] COND FALSE !(\read(var_1_2)) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L57] var_1_15 = var_1_8 [L58] var_1_16 = var_1_14 [L59] var_1_17 = var_1_18 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L60] EXPR -4 >> var_1_1 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L60] EXPR (((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L60] EXPR -4 >> var_1_1 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L60] EXPR (((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L60] signed long int stepLocal_3 = ((((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1)); [L61] signed long int stepLocal_2 = var_1_1 / -8; VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, stepLocal_2=0, stepLocal_3=-255, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L62] COND TRUE (~ var_1_17) <= stepLocal_3 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, stepLocal_2=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L63] COND FALSE !((var_1_14 - 64) < stepLocal_2) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L110] RET step() [L111] CALL, EXPR property() [L101] EXPR ((var_1_2 ? (((last_1_var_1_12 >= last_1_var_1_17) && var_1_5) ? ((last_1_var_1_12 >= last_1_var_1_17) ? (var_1_1 == ((unsigned short int) 5)) : (var_1_1 == ((unsigned short int) ((((25) < (last_1_var_1_17)) ? (25) : (last_1_var_1_17)))))) : 1) : (var_1_1 == ((unsigned short int) last_1_var_1_17))) && (var_1_2 ? (var_1_7 == ((signed long int) (((var_1_8 + var_1_9) + var_1_10) - var_1_11))) : 1)) && (((~ var_1_17) <= (((((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1)))) ? (((var_1_14 - 64) < (var_1_1 / -8)) ? (var_1_12 == ((signed long int) var_1_1)) : 1) : (var_1_12 == ((signed long int) (var_1_17 - var_1_14)))) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L101] EXPR -4 >> var_1_1 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L101] EXPR (((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L101] EXPR -4 >> var_1_1 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L101] EXPR (((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L101] EXPR ((var_1_2 ? (((last_1_var_1_12 >= last_1_var_1_17) && var_1_5) ? ((last_1_var_1_12 >= last_1_var_1_17) ? (var_1_1 == ((unsigned short int) 5)) : (var_1_1 == ((unsigned short int) ((((25) < (last_1_var_1_17)) ? (25) : (last_1_var_1_17)))))) : 1) : (var_1_1 == ((unsigned short int) last_1_var_1_17))) && (var_1_2 ? (var_1_7 == ((signed long int) (((var_1_8 + var_1_9) + var_1_10) - var_1_11))) : 1)) && (((~ var_1_17) <= (((((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1)))) ? (((var_1_14 - 64) < (var_1_1 / -8)) ? (var_1_12 == ((signed long int) var_1_1)) : 1) : (var_1_12 == ((signed long int) (var_1_17 - var_1_14)))) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L101-L102] return (((((var_1_2 ? (((last_1_var_1_12 >= last_1_var_1_17) && var_1_5) ? ((last_1_var_1_12 >= last_1_var_1_17) ? (var_1_1 == ((unsigned short int) 5)) : (var_1_1 == ((unsigned short int) ((((25) < (last_1_var_1_17)) ? (25) : (last_1_var_1_17)))))) : 1) : (var_1_1 == ((unsigned short int) last_1_var_1_17))) && (var_1_2 ? (var_1_7 == ((signed long int) (((var_1_8 + var_1_9) + var_1_10) - var_1_11))) : 1)) && (((~ var_1_17) <= (((((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1)))) ? (((var_1_14 - 64) < (var_1_1 / -8)) ? (var_1_12 == ((signed long int) var_1_1)) : 1) : (var_1_12 == ((signed long int) (var_1_17 - var_1_14))))) && (var_1_15 == ((signed long int) var_1_8))) && (var_1_16 == ((unsigned long int) var_1_14))) && (var_1_17 == ((unsigned char) var_1_18)) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.4s, OverallIterations: 14, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1422 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1374 mSDsluCounter, 3620 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2434 mSDsCounter, 497 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1488 IncrementalHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 497 mSolverCounterUnsat, 1186 mSDtfsCounter, 1488 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 696 GetRequests, 589 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=353occurred in iteration=13, InterpolantAutomatonStates: 96, 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, 13 MinimizatonAttempts, 592 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 1903 NumberOfCodeBlocks, 1903 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2002 ConstructedInterpolants, 0 QuantifiedInterpolants, 6027 SizeOfPredicates, 13 NumberOfNonLiveVariables, 807 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 8514/8640 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 07:35:21,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1 --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 3559b3594a82cd675e67391d8043202d21aa0bea5a13d40b68d97450424826dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:35:24,087 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:35:24,179 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 07:35:24,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:35:24,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:35:24,212 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:35:24,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:35:24,212 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:35:24,213 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:35:24,213 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:35:24,213 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:35:24,213 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:35:24,214 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:35:24,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:35:24,214 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:35:24,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:35:24,214 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:35:24,214 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:35:24,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:35:24,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:35:24,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:35:24,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:35:24,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:35:24,215 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:35:24,215 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:35:24,215 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:35:24,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:35:24,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:35:24,215 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:35:24,215 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:35:24,215 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:35:24,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:35:24,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:35:24,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:35:24,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:35:24,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:35:24,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:35:24,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:35:24,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:35:24,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:35:24,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:35:24,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:35:24,217 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:35:24,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:35:24,217 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:35:24,217 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:35:24,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:35:24,217 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:35:24,217 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:35:24,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:35:24,217 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1 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 -> 3559b3594a82cd675e67391d8043202d21aa0bea5a13d40b68d97450424826dd [2024-12-02 07:35:24,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:35:24,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:35:24,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:35:24,503 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:35:24,503 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:35:24,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i [2024-12-02 07:35:27,584 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/data/1153ca416/67c6691dce6c44a0a35633090ec1b0be/FLAGf98f3f700 [2024-12-02 07:35:27,789 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:35:27,790 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i [2024-12-02 07:35:27,798 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/data/1153ca416/67c6691dce6c44a0a35633090ec1b0be/FLAGf98f3f700 [2024-12-02 07:35:27,813 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/data/1153ca416/67c6691dce6c44a0a35633090ec1b0be [2024-12-02 07:35:27,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:35:27,816 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:35:27,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:35:27,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:35:27,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:35:27,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:35:27" (1/1) ... [2024-12-02 07:35:27,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120b68f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:27, skipping insertion in model container [2024-12-02 07:35:27,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:35:27" (1/1) ... [2024-12-02 07:35:27,843 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:35:27,993 WARN L250 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_3db3462c-325d-4fa5-9e04-34ab6014f304/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i[916,929] [2024-12-02 07:35:28,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:35:28,049 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:35:28,059 WARN L250 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_3db3462c-325d-4fa5-9e04-34ab6014f304/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i[916,929] [2024-12-02 07:35:28,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:35:28,094 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:35:28,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28 WrapperNode [2024-12-02 07:35:28,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:35:28,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:35:28,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:35:28,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:35:28,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,135 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2024-12-02 07:35:28,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:35:28,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:35:28,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:35:28,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:35:28,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,149 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,160 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 07:35:28,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,169 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,170 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:35:28,181 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:35:28,181 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:35:28,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:35:28,182 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (1/1) ... [2024-12-02 07:35:28,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:35:28,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:35:28,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:35:28,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:35:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:35:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:35:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:35:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:35:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:35:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:35:28,313 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:35:28,314 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:35:28,547 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 07:35:28,547 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:35:28,556 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:35:28,556 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:35:28,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:35:28 BoogieIcfgContainer [2024-12-02 07:35:28,557 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:35:28,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:35:28,558 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:35:28,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:35:28,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:35:27" (1/3) ... [2024-12-02 07:35:28,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d9cb33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:35:28, skipping insertion in model container [2024-12-02 07:35:28,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:35:28" (2/3) ... [2024-12-02 07:35:28,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d9cb33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:35:28, skipping insertion in model container [2024-12-02 07:35:28,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:35:28" (3/3) ... [2024-12-02 07:35:28,565 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-55.i [2024-12-02 07:35:28,577 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:35:28,579 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-55.i that has 2 procedures, 50 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:35:28,628 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:35:28,639 INFO L333 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, 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;@2f391173, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:35:28,639 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:35:28,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:35:28,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 07:35:28,651 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:28,652 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:28,652 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:28,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:28,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1174662013, now seen corresponding path program 1 times [2024-12-02 07:35:28,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:35:28,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261199366] [2024-12-02 07:35:28,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:28,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:35:28,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:35:28,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:35:28,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:35:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:28,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:35:28,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:35:28,864 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 07:35:28,865 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:35:28,865 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:35:28,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261199366] [2024-12-02 07:35:28,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261199366] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:28,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:28,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:35:28,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842358377] [2024-12-02 07:35:28,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:28,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:35:28,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:35:28,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:35:28,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:35:28,890 INFO L87 Difference]: Start difference. First operand has 50 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:35:28,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:28,913 INFO L93 Difference]: Finished difference Result 93 states and 158 transitions. [2024-12-02 07:35:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:35:28,915 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2024-12-02 07:35:28,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:28,920 INFO L225 Difference]: With dead ends: 93 [2024-12-02 07:35:28,920 INFO L226 Difference]: Without dead ends: 46 [2024-12-02 07:35:28,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:35:28,926 INFO L435 NwaCegarLoop]: 67 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, 67 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 [2024-12-02 07:35:28,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:35:28,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-12-02 07:35:28,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-12-02 07:35:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:35:28,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 67 transitions. [2024-12-02 07:35:28,963 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 67 transitions. Word has length 101 [2024-12-02 07:35:28,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:28,964 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 67 transitions. [2024-12-02 07:35:28,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:35:28,964 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 67 transitions. [2024-12-02 07:35:28,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 07:35:28,968 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:28,969 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:28,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:35:29,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:35:29,170 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:29,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:29,170 INFO L85 PathProgramCache]: Analyzing trace with hash 730412163, now seen corresponding path program 1 times [2024-12-02 07:35:29,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:35:29,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654316979] [2024-12-02 07:35:29,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:29,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:35:29,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:35:29,173 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:35:29,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:35:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:29,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:35:29,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:35:29,336 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:29,337 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:35:29,337 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:35:29,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654316979] [2024-12-02 07:35:29,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654316979] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:29,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:29,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:35:29,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8423763] [2024-12-02 07:35:29,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:29,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:35:29,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:35:29,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:35:29,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:35:29,341 INFO L87 Difference]: Start difference. First operand 46 states and 67 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:29,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:29,381 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2024-12-02 07:35:29,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:35:29,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 101 [2024-12-02 07:35:29,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:29,385 INFO L225 Difference]: With dead ends: 101 [2024-12-02 07:35:29,385 INFO L226 Difference]: Without dead ends: 58 [2024-12-02 07:35:29,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:35:29,387 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 15 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:29,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 121 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:35:29,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-12-02 07:35:29,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 47. [2024-12-02 07:35:29,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:35:29,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-12-02 07:35:29,398 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 101 [2024-12-02 07:35:29,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:29,400 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-12-02 07:35:29,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:29,400 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-12-02 07:35:29,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 07:35:29,402 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:29,402 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:29,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:35:29,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:35:29,603 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:29,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:29,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1789547771, now seen corresponding path program 1 times [2024-12-02 07:35:29,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:35:29,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765964180] [2024-12-02 07:35:29,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:29,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:35:29,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:35:29,606 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:35:29,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:35:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:29,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 07:35:29,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:35:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:30,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:35:30,067 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:35:30,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765964180] [2024-12-02 07:35:30,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765964180] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:30,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:30,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:35:30,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138376119] [2024-12-02 07:35:30,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:30,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:35:30,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:35:30,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:35:30,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:35:30,069 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:30,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:30,369 INFO L93 Difference]: Finished difference Result 190 states and 277 transitions. [2024-12-02 07:35:30,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:35:30,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 101 [2024-12-02 07:35:30,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:30,374 INFO L225 Difference]: With dead ends: 190 [2024-12-02 07:35:30,374 INFO L226 Difference]: Without dead ends: 146 [2024-12-02 07:35:30,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:35:30,376 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 125 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:30,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 403 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:35:30,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-12-02 07:35:30,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 121. [2024-12-02 07:35:30,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 69 states have internal predecessors, (84), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 07:35:30,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 180 transitions. [2024-12-02 07:35:30,413 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 180 transitions. Word has length 101 [2024-12-02 07:35:30,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:30,414 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 180 transitions. [2024-12-02 07:35:30,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:30,415 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 180 transitions. [2024-12-02 07:35:30,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 07:35:30,416 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:30,417 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:35:30,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:35:30,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:35:30,618 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:30,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:30,618 INFO L85 PathProgramCache]: Analyzing trace with hash 123033650, now seen corresponding path program 1 times [2024-12-02 07:35:30,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:35:30,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640226736] [2024-12-02 07:35:30,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:30,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:35:30,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:35:30,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:35:30,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db3462c-325d-4fa5-9e04-34ab6014f304/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 07:35:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:30,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 07:35:30,724 INFO L279 TraceCheckSpWp]: Computing forward predicates...