./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound100.c --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_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB --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 dd2c24b3e442770905ace3d5178f7b94d29cd68a7eab246761229ae0bb40880c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:53:56,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:53:56,674 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:53:56,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:53:56,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:53:56,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:53:56,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:53:56,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:53:56,708 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:53:56,708 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:53:56,709 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:53:56,709 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:53:56,710 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:53:56,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:53:56,710 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:53:56,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:53:56,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:53:56,711 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:53:56,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:53:56,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:53:56,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:53:56,712 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:53:56,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:53:56,712 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:53:56,712 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:53:56,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:53:56,712 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:53:56,712 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:53:56,712 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:53:56,713 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:56,713 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:56,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:56,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:56,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:53:56,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:56,714 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:56,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:56,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:56,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:53:56,715 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:53:56,715 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:53:56,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:53:56,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:53:56,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:53:56,715 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:53:56,715 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:53:56,715 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:53:56,715 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:53:56,715 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_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB 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 -> dd2c24b3e442770905ace3d5178f7b94d29cd68a7eab246761229ae0bb40880c [2024-11-28 02:53:57,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:53:57,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:53:57,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:53:57,059 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:53:57,060 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:53:57,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound100.c [2024-11-28 02:54:00,066 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/data/d8e428607/4fd4c56b9e7440ab8542ecd3271b5fb1/FLAGb2a296db0 [2024-11-28 02:54:00,289 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:54:00,290 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound100.c [2024-11-28 02:54:00,298 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/data/d8e428607/4fd4c56b9e7440ab8542ecd3271b5fb1/FLAGb2a296db0 [2024-11-28 02:54:00,313 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/data/d8e428607/4fd4c56b9e7440ab8542ecd3271b5fb1 [2024-11-28 02:54:00,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:54:00,317 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:54:00,318 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:54:00,318 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:54:00,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:54:00,324 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c1a492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00, skipping insertion in model container [2024-11-28 02:54:00,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,341 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:54:00,516 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_f8264673-2cfb-456c-a556-3ef872754e00/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound100.c[524,537] [2024-11-28 02:54:00,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:54:00,553 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:54:00,565 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_f8264673-2cfb-456c-a556-3ef872754e00/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound100.c[524,537] [2024-11-28 02:54:00,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:54:00,590 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:54:00,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00 WrapperNode [2024-11-28 02:54:00,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:54:00,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:54:00,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:54:00,594 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:54:00,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,630 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2024-11-28 02:54:00,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:54:00,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:54:00,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:54:00,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:54:00,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,647 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,665 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]. [2024-11-28 02:54:00,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,668 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:54:00,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:54:00,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:54:00,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:54:00,685 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (1/1) ... [2024-11-28 02:54:00,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:54:00,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:00,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:54:00,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:54:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:54:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:54:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:54:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:54:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:54:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:54:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:54:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:54:00,824 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:54:00,825 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:54:01,000 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-28 02:54:01,001 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:54:01,010 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:54:01,010 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:54:01,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:01 BoogieIcfgContainer [2024-11-28 02:54:01,011 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:54:01,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:54:01,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:54:01,018 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:54:01,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:54:00" (1/3) ... [2024-11-28 02:54:01,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d3e51d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:54:01, skipping insertion in model container [2024-11-28 02:54:01,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:00" (2/3) ... [2024-11-28 02:54:01,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d3e51d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:54:01, skipping insertion in model container [2024-11-28 02:54:01,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:01" (3/3) ... [2024-11-28 02:54:01,022 INFO L128 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound100.c [2024-11-28 02:54:01,037 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:54:01,039 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG geo3-ll_valuebound100.c that has 3 procedures, 25 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:54:01,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:54:01,114 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;@44727a5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:54:01,114 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:54:01,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:54:01,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 02:54:01,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:01,128 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:01,129 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:01,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:01,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1261938900, now seen corresponding path program 1 times [2024-11-28 02:54:01,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:01,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523463888] [2024-11-28 02:54:01,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:01,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:54:01,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:01,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523463888] [2024-11-28 02:54:01,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523463888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:01,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961269490] [2024-11-28 02:54:01,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:01,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:01,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:01,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:01,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:54:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:01,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:54:01,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:01,421 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:54:01,421 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:01,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961269490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:01,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:01,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:54:01,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119640819] [2024-11-28 02:54:01,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:01,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:54:01,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:01,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:54:01,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:54:01,445 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:54:01,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:01,461 INFO L93 Difference]: Finished difference Result 47 states and 65 transitions. [2024-11-28 02:54:01,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:54:01,463 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2024-11-28 02:54:01,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:01,470 INFO L225 Difference]: With dead ends: 47 [2024-11-28 02:54:01,470 INFO L226 Difference]: Without dead ends: 21 [2024-11-28 02:54:01,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:54:01,475 INFO L435 NwaCegarLoop]: 28 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, 28 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 [2024-11-28 02:54:01,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:54:01,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-28 02:54:01,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-28 02:54:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 02:54:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-11-28 02:54:01,509 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 24 [2024-11-28 02:54:01,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:01,509 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-28 02:54:01,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:54:01,510 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-11-28 02:54:01,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 02:54:01,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:01,511 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:01,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:54:01,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:01,715 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:01,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:01,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1376173426, now seen corresponding path program 1 times [2024-11-28 02:54:01,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:01,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743743079] [2024-11-28 02:54:01,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:01,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:01,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1695802728] [2024-11-28 02:54:01,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:01,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:01,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:01,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:01,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:54:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:01,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 02:54:01,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 02:54:02,259 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:02,400 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:54:02,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:02,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743743079] [2024-11-28 02:54:02,401 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:02,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695802728] [2024-11-28 02:54:02,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695802728] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:02,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:02,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-11-28 02:54:02,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724343738] [2024-11-28 02:54:02,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:02,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:54:02,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:02,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:54:02,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:54:02,404 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:54:06,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:54:06,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:06,473 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2024-11-28 02:54:06,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:54:06,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-28 02:54:06,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:06,475 INFO L225 Difference]: With dead ends: 30 [2024-11-28 02:54:06,475 INFO L226 Difference]: Without dead ends: 27 [2024-11-28 02:54:06,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:54:06,477 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:06,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 76 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 02:54:06,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-28 02:54:06,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-28 02:54:06,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:54:06,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2024-11-28 02:54:06,484 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 24 [2024-11-28 02:54:06,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:06,487 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2024-11-28 02:54:06,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:54:06,487 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2024-11-28 02:54:06,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 02:54:06,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:06,488 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:06,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:06,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:06,689 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:06,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:06,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1263667812, now seen corresponding path program 1 times [2024-11-28 02:54:06,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:06,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79387465] [2024-11-28 02:54:06,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:06,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:06,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027140393] [2024-11-28 02:54:06,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:06,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:06,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:06,753 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:06,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:54:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:06,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 02:54:06,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:07,258 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 02:54:07,258 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:23,691 WARN L873 $PredicateComparison]: unable to prove that (or (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~a~0#1| (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~az~0#1|)) 18446744073709551616) 0))) is different from true [2024-11-28 02:54:23,815 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 1 not checked. [2024-11-28 02:54:23,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:23,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79387465] [2024-11-28 02:54:23,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:23,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027140393] [2024-11-28 02:54:23,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027140393] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:54:23,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:54:23,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 16 [2024-11-28 02:54:23,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561683368] [2024-11-28 02:54:23,816 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:23,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 02:54:23,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:23,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 02:54:23,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=170, Unknown=2, NotChecked=26, Total=240 [2024-11-28 02:54:23,817 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 16 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 14 states have internal predecessors, (24), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-28 02:54:32,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:54:44,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:54:48,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:54:52,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:54:56,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:55:00,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:55:00,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:00,534 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2024-11-28 02:55:00,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:55:00,535 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 14 states have internal predecessors, (24), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 30 [2024-11-28 02:55:00,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:00,537 INFO L225 Difference]: With dead ends: 40 [2024-11-28 02:55:00,537 INFO L226 Difference]: Without dead ends: 35 [2024-11-28 02:55:00,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=4, NotChecked=32, Total=342 [2024-11-28 02:55:00,539 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 20 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 18 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:00,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 113 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 117 Invalid, 6 Unknown, 41 Unchecked, 24.4s Time] [2024-11-28 02:55:00,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-28 02:55:00,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-28 02:55:00,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 23 states have internal predecessors, (23), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 02:55:00,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2024-11-28 02:55:00,549 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 30 [2024-11-28 02:55:00,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:00,549 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2024-11-28 02:55:00,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 14 states have internal predecessors, (24), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-28 02:55:00,549 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2024-11-28 02:55:00,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 02:55:00,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:00,552 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:00,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:55:00,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:00,752 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:55:00,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:00,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1456373818, now seen corresponding path program 2 times [2024-11-28 02:55:00,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:00,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353271393] [2024-11-28 02:55:00,753 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:55:00,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:00,816 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:55:00,816 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:55:00,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163996699] [2024-11-28 02:55:00,819 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:55:00,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:00,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:00,821 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:00,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:55:01,063 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:55:01,063 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:55:01,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 02:55:01,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:01,999 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 02:55:01,999 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:18,538 WARN L873 $PredicateComparison]: unable to prove that (or (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~a~0#1| (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~az~0#1|)) 18446744073709551616) 0))) is different from true [2024-11-28 02:55:30,929 WARN L873 $PredicateComparison]: unable to prove that (or (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|) (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|)) 18446744073709551616) 0))) is different from true [2024-11-28 02:55:38,994 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:55:55,100 WARN L873 $PredicateComparison]: unable to prove that (or (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|) (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|) (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|)) 18446744073709551616) 0))) is different from true [2024-11-28 02:56:07,360 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:56:15,402 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:56:23,458 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:56:27,469 WARN L873 $PredicateComparison]: unable to prove that (or (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|) (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|)) 18446744073709551616) 0)) (= (mod (+ (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|)) 18446744073709551616) 0)) is different from true [2024-11-28 02:56:43,582 WARN L286 SmtUtils]: Spent 12.06s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:57:46,018 WARN L286 SmtUtils]: Spent 1.04m on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:57:50,042 WARN L873 $PredicateComparison]: unable to prove that (or (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|) (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|)) 18446744073709551616) 0)) (not (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~a~0#1| (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~az~0#1|)) 18446744073709551616) 0)) (= (mod (+ (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|)) 18446744073709551616) 0)) is different from true [2024-11-28 02:58:10,192 WARN L286 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:58:22,215 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:58:34,273 WARN L286 SmtUtils]: Spent 12.06s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:58:42,290 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:58:50,313 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:58:54,339 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13| Int) (v_z_1 Int) (|v_ULTIMATE.start_main_~az~0#1_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| Int)) (let ((.cse0 (+ v_z_1 (mod (+ (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| 18446744073709551615 |v_ULTIMATE.start_main_~az~0#1_BEFORE_CALL_13|) (* 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|)) 18446744073709551616)))) (or (not (= (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| v_z_1) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| 18446744073709551615 |v_ULTIMATE.start_main_~az~0#1_BEFORE_CALL_13|)) 18446744073709551616) 0)) (< v_z_1 0) (= .cse0 0) (= 18446744073709551616 .cse0) (= (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| v_z_1) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| 18446744073709551615 |v_ULTIMATE.start_main_~az~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|)) 18446744073709551616) 0) (< 18446744073709551615 v_z_1))))) is different from true [2024-11-28 02:59:10,545 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:59:22,564 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:59:34,619 WARN L286 SmtUtils]: Spent 12.05s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:59:47,048 WARN L286 SmtUtils]: Spent 8.40s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 03:00:17,684 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 03:00:29,722 WARN L286 SmtUtils]: Spent 12.04s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 03:00:41,757 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 03:00:53,951 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 03:00:57,988 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13| Int) (v_z_1 Int) (|v_ULTIMATE.start_main_~az~0#1_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| Int)) (let ((.cse0 (+ v_z_1 (mod (+ (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| 18446744073709551615 |v_ULTIMATE.start_main_~az~0#1_BEFORE_CALL_13|) (* 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|)) 18446744073709551616)))) (or (not (= (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| v_z_1) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| 18446744073709551615 |v_ULTIMATE.start_main_~az~0#1_BEFORE_CALL_13|)) 18446744073709551616) 0)) (< v_z_1 0) (= .cse0 0) (= 18446744073709551616 .cse0) (= (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| v_z_1) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| 18446744073709551615 |v_ULTIMATE.start_main_~az~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|)) 18446744073709551616) 0) (< 18446744073709551615 v_z_1)))) (= c___VERIFIER_assert_~cond 0)) is different from true [2024-11-28 03:00:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 12 proven. 1 refuted. 6 times theorem prover too weak. 21 trivial. 20 not checked. [2024-11-28 03:00:58,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:00:58,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353271393] [2024-11-28 03:00:58,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:00:58,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163996699] [2024-11-28 03:00:58,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163996699] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:00:58,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:00:58,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2024-11-28 03:00:58,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284844380] [2024-11-28 03:00:58,071 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:00:58,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 03:00:58,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:00:58,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 03:00:58,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=254, Unknown=8, NotChecked=266, Total=600 [2024-11-28 03:00:58,074 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 25 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 22 states have internal predecessors, (36), 13 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-28 03:01:09,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:01:21,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:01:25,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:01:29,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:01:33,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:01:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:01:33,788 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2024-11-28 03:01:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:01:33,789 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 22 states have internal predecessors, (36), 13 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) Word has length 48 [2024-11-28 03:01:33,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:01:33,790 INFO L225 Difference]: With dead ends: 47 [2024-11-28 03:01:33,790 INFO L226 Difference]: Without dead ends: 45 [2024-11-28 03:01:33,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 69 SyntacticMatches, 10 SemanticMatches, 26 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 47.9s TimeCoverageRelationStatistics Valid=101, Invalid=337, Unknown=10, NotChecked=308, Total=756 [2024-11-28 03:01:33,791 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 8 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 302 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:01:33,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 152 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 231 Invalid, 5 Unknown, 302 Unchecked, 20.8s Time] [2024-11-28 03:01:33,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-28 03:01:33,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-28 03:01:33,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 29 states have internal predecessors, (29), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 03:01:33,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2024-11-28 03:01:33,802 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 48 [2024-11-28 03:01:33,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:01:33,803 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2024-11-28 03:01:33,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 22 states have internal predecessors, (36), 13 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-28 03:01:33,803 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2024-11-28 03:01:33,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 03:01:33,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:01:33,805 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:33,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:01:34,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:01:34,006 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:01:34,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:34,006 INFO L85 PathProgramCache]: Analyzing trace with hash 966431600, now seen corresponding path program 3 times [2024-11-28 03:01:34,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:34,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781592131] [2024-11-28 03:01:34,006 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:01:34,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:34,171 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-28 03:01:34,171 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:01:34,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1669521759] [2024-11-28 03:01:34,178 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:01:34,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:01:34,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:01:34,183 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:01:34,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8264673-2cfb-456c-a556-3ef872754e00/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process