./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-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_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/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_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/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_b7f794db-713e-4a06-8f62-eed8f048b1d1/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 b3d0d63b4f79c4f9ae0c19cc6d4aa64fc14c5b293d51178c1ef9a9e32f786662 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:25:36,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:25:36,190 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:25:36,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:25:36,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:25:36,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:25:36,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:25:36,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:25:36,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:25:36,242 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:25:36,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:25:36,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:25:36,244 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:25:36,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:25:36,244 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:25:36,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:25:36,244 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:25:36,244 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:25:36,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:25:36,244 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:25:36,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:25:36,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:25:36,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:25:36,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:25:36,245 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:25:36,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:25:36,246 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:25:36,246 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:25:36,246 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:25:36,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:25:36,247 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:25:36,247 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:25:36,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:25:36,248 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:25:36,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:25:36,248 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:25:36,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:25:36,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:25:36,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:25:36,249 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:25:36,249 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:25:36,249 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:25:36,249 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:25:36,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:25:36,250 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:25:36,250 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:25:36,250 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:25:36,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:25:36,250 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_b7f794db-713e-4a06-8f62-eed8f048b1d1/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 -> b3d0d63b4f79c4f9ae0c19cc6d4aa64fc14c5b293d51178c1ef9a9e32f786662 [2024-11-27 23:25:36,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:25:36,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:25:36,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:25:36,656 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:25:36,657 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:25:36,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound100.c [2024-11-27 23:25:39,668 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/data/eb93cc651/2caee6b1561c4d05a8801c443adc2c21/FLAG371f5a562 [2024-11-27 23:25:39,984 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:25:39,984 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound100.c [2024-11-27 23:25:39,998 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/data/eb93cc651/2caee6b1561c4d05a8801c443adc2c21/FLAG371f5a562 [2024-11-27 23:25:40,053 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/data/eb93cc651/2caee6b1561c4d05a8801c443adc2c21 [2024-11-27 23:25:40,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:25:40,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:25:40,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:25:40,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:25:40,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:25:40,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7066ebfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40, skipping insertion in model container [2024-11-27 23:25:40,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,111 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:25:40,343 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_b7f794db-713e-4a06-8f62-eed8f048b1d1/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound100.c[545,558] [2024-11-27 23:25:40,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:25:40,388 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:25:40,405 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_b7f794db-713e-4a06-8f62-eed8f048b1d1/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound100.c[545,558] [2024-11-27 23:25:40,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:25:40,440 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:25:40,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40 WrapperNode [2024-11-27 23:25:40,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:25:40,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:25:40,444 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:25:40,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:25:40,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,468 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,490 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2024-11-27 23:25:40,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:25:40,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:25:40,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:25:40,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:25:40,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,507 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,520 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]. [2024-11-27 23:25:40,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,524 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,533 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:25:40,534 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:25:40,534 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:25:40,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:25:40,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:25:40,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:40,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:25:40,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:25:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:25:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:25:40,618 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:25:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:25:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:25:40,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:25:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:25:40,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:25:40,688 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:25:40,690 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:25:40,862 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-27 23:25:40,862 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:25:40,875 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:25:40,876 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:25:40,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:25:40 BoogieIcfgContainer [2024-11-27 23:25:40,876 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:25:40,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:25:40,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:25:40,885 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:25:40,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:25:40" (1/3) ... [2024-11-27 23:25:40,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3e78a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:25:40, skipping insertion in model container [2024-11-27 23:25:40,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (2/3) ... [2024-11-27 23:25:40,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3e78a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:25:40, skipping insertion in model container [2024-11-27 23:25:40,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:25:40" (3/3) ... [2024-11-27 23:25:40,889 INFO L128 eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound100.c [2024-11-27 23:25:40,910 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:25:40,912 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG geo1-ll_valuebound100.c that has 3 procedures, 26 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:25:41,002 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:25:41,023 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;@2002a3dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:25:41,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:25:41,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 23:25:41,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-27 23:25:41,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:41,042 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:41,042 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:41,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:41,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1490639280, now seen corresponding path program 1 times [2024-11-27 23:25:41,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:41,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208820661] [2024-11-27 23:25:41,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:41,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:41,306 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 23:25:41,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:41,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208820661] [2024-11-27 23:25:41,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208820661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:41,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791255061] [2024-11-27 23:25:41,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:41,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:41,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:41,317 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:41,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:25:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:41,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:25:41,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 23:25:41,445 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:25:41,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791255061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:41,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:25:41,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:25:41,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599963748] [2024-11-27 23:25:41,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:41,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:25:41,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:41,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:25:41,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:25:41,491 INFO L87 Difference]: Start difference. First operand has 26 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 23:25:41,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:41,522 INFO L93 Difference]: Finished difference Result 49 states and 70 transitions. [2024-11-27 23:25:41,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:25:41,525 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2024-11-27 23:25:41,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:41,540 INFO L225 Difference]: With dead ends: 49 [2024-11-27 23:25:41,540 INFO L226 Difference]: Without dead ends: 22 [2024-11-27 23:25:41,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:25:41,552 INFO L435 NwaCegarLoop]: 30 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, 30 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 [2024-11-27 23:25:41,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:41,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-27 23:25:41,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-27 23:25:41,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:25:41,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2024-11-27 23:25:41,605 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 28 [2024-11-27 23:25:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:41,605 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2024-11-27 23:25:41,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 23:25:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2024-11-27 23:25:41,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-27 23:25:41,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:41,609 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:41,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:25:41,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:25:41,810 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:41,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:41,811 INFO L85 PathProgramCache]: Analyzing trace with hash -719982836, now seen corresponding path program 1 times [2024-11-27 23:25:41,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:41,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770807209] [2024-11-27 23:25:41,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:41,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:25:41,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1626541449] [2024-11-27 23:25:41,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:41,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:41,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:41,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:41,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:25:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:41,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:25:41,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:42,118 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 23:25:42,118 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:25:42,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:42,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770807209] [2024-11-27 23:25:42,120 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:25:42,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626541449] [2024-11-27 23:25:42,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626541449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:42,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:42,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:25:42,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414391309] [2024-11-27 23:25:42,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:42,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:25:42,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:42,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:25:42,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:42,123 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 23:25:42,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:42,192 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2024-11-27 23:25:42,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:25:42,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-11-27 23:25:42,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:42,194 INFO L225 Difference]: With dead ends: 31 [2024-11-27 23:25:42,195 INFO L226 Difference]: Without dead ends: 29 [2024-11-27 23:25:42,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:42,196 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:42,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 81 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:42,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-27 23:25:42,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2024-11-27 23:25:42,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.125) internal successors, (18), 18 states have internal predecessors, (18), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 23:25:42,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-11-27 23:25:42,205 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 28 [2024-11-27 23:25:42,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:42,206 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-11-27 23:25:42,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 23:25:42,207 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-11-27 23:25:42,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-27 23:25:42,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:42,208 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:42,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:25:42,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:42,409 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:42,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:42,409 INFO L85 PathProgramCache]: Analyzing trace with hash -720718219, now seen corresponding path program 1 times [2024-11-27 23:25:42,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:42,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796851676] [2024-11-27 23:25:42,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:42,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:25:42,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842794161] [2024-11-27 23:25:42,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:42,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:42,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:42,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:42,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:25:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:42,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 23:25:42,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 23:25:42,842 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:25:47,116 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 0 refuted. 1 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 23:25:47,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:47,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796851676] [2024-11-27 23:25:47,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:25:47,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842794161] [2024-11-27 23:25:47,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842794161] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:25:47,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:25:47,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 11 [2024-11-27 23:25:47,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352883838] [2024-11-27 23:25:47,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:25:47,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:25:47,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:47,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:25:47,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=84, Unknown=1, NotChecked=0, Total=110 [2024-11-27 23:25:47,119 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-27 23:25:56,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:26:08,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:26:12,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:26:16,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:26:20,188 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 [] [2024-11-27 23:26:20,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:20,205 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2024-11-27 23:26:20,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:26:20,206 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 34 [2024-11-27 23:26:20,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:20,208 INFO L225 Difference]: With dead ends: 44 [2024-11-27 23:26:20,208 INFO L226 Difference]: Without dead ends: 42 [2024-11-27 23:26:20,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=43, Invalid=136, Unknown=3, NotChecked=0, Total=182 [2024-11-27 23:26:20,210 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:20,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 131 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 128 Invalid, 5 Unknown, 0 Unchecked, 20.3s Time] [2024-11-27 23:26:20,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-27 23:26:20,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2024-11-27 23:26:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 23:26:20,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2024-11-27 23:26:20,232 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 34 [2024-11-27 23:26:20,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:20,233 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2024-11-27 23:26:20,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-27 23:26:20,233 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2024-11-27 23:26:20,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-27 23:26:20,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:20,234 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:20,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:26:20,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:20,435 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:20,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:20,436 INFO L85 PathProgramCache]: Analyzing trace with hash -954540093, now seen corresponding path program 1 times [2024-11-27 23:26:20,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:20,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115805544] [2024-11-27 23:26:20,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:20,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 23:26:21,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:21,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115805544] [2024-11-27 23:26:21,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115805544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:21,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023243543] [2024-11-27 23:26:21,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:21,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:21,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:21,075 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:21,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:26:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:21,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 23:26:21,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:21,338 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 23:26:21,339 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:26:21,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023243543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:21,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:26:21,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-27 23:26:21,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083937321] [2024-11-27 23:26:21,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:21,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:26:21,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:21,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:26:21,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:26:21,341 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:26:21,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:21,421 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2024-11-27 23:26:21,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:26:21,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2024-11-27 23:26:21,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:21,426 INFO L225 Difference]: With dead ends: 45 [2024-11-27 23:26:21,426 INFO L226 Difference]: Without dead ends: 37 [2024-11-27 23:26:21,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:26:21,430 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:21,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 100 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:26:21,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-27 23:26:21,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-27 23:26:21,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 23:26:21,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2024-11-27 23:26:21,455 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 35 [2024-11-27 23:26:21,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:21,456 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2024-11-27 23:26:21,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:26:21,457 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2024-11-27 23:26:21,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-27 23:26:21,459 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:21,460 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:21,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:26:21,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:21,660 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:21,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:21,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1373872186, now seen corresponding path program 1 times [2024-11-27 23:26:21,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:21,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421551334] [2024-11-27 23:26:21,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:21,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:22,194 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-27 23:26:22,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:22,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421551334] [2024-11-27 23:26:22,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421551334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:26:22,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258758535] [2024-11-27 23:26:22,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:26:22,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:22,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:22,202 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:22,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:26:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:22,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:26:22,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-27 23:26:30,583 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:26:30,839 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-27 23:26:30,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258758535] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:26:30,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:26:30,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 11 [2024-11-27 23:26:30,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597304434] [2024-11-27 23:26:30,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:26:30,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:26:30,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:30,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:26:30,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=83, Unknown=2, NotChecked=0, Total=110 [2024-11-27 23:26:30,845 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 11 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 23:26:34,919 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 [0] [2024-11-27 23:26:39,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:26:43,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:26:47,114 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 [0] [2024-11-27 23:26:47,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:26:47,280 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2024-11-27 23:26:47,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:26:47,281 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 41 [2024-11-27 23:26:47,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:26:47,282 INFO L225 Difference]: With dead ends: 43 [2024-11-27 23:26:47,282 INFO L226 Difference]: Without dead ends: 35 [2024-11-27 23:26:47,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 75 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=33, Invalid=97, Unknown=2, NotChecked=0, Total=132 [2024-11-27 23:26:47,283 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:26:47,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 148 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 4 Unknown, 0 Unchecked, 16.4s Time] [2024-11-27 23:26:47,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-27 23:26:47,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-27 23:26:47,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 22 states have internal predecessors, (22), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 23:26:47,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2024-11-27 23:26:47,301 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 41 [2024-11-27 23:26:47,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:26:47,301 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2024-11-27 23:26:47,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 23:26:47,302 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2024-11-27 23:26:47,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-27 23:26:47,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:26:47,303 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:26:47,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:26:47,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:47,506 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:26:47,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:26:47,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1343200304, now seen corresponding path program 2 times [2024-11-27 23:26:47,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:26:47,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679535543] [2024-11-27 23:26:47,507 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:26:47,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:26:47,578 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:26:47,578 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:26:47,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [597083455] [2024-11-27 23:26:47,580 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:26:47,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:26:47,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:26:47,583 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:26:47,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:26:47,727 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:26:47,727 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:26:47,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-27 23:26:47,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:26:48,236 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 22 proven. 20 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 23:26:48,236 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:27:04,553 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_~z~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1|)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1|) (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615) 1) 18446744073709551616) 0))) is different from true [2024-11-27 23:27:18,454 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_~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_~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_~z~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1|)) 18446744073709551616) 0))) is different from true [2024-11-27 23:27:38,855 WARN L873 $PredicateComparison]: unable to prove that (or (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_~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_~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_~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_~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_~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|)) 18446744073709551616) 0)) is different from true [2024-11-27 23:27:52,593 WARN L286 SmtUtils]: Spent 5.61s 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) [2024-11-27 23:28:00,634 WARN L873 $PredicateComparison]: unable to prove that (or (= 0 (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_~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_~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|)) 18446744073709551616)) (not (= (mod (+ (* |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_~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_~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|)) 18446744073709551616) 0))) is different from true [2024-11-27 23:28:08,732 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 16 not checked. [2024-11-27 23:28:08,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:08,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679535543] [2024-11-27 23:28:08,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:28:08,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597083455] [2024-11-27 23:28:08,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597083455] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:28:08,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:28:08,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 22 [2024-11-27 23:28:08,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645276898] [2024-11-27 23:28:08,733 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:28:08,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 23:28:08,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:08,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 23:28:08,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=256, Unknown=5, NotChecked=140, Total=462 [2024-11-27 23:28:08,735 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 22 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 19 states have internal predecessors, (32), 12 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-27 23:28:18,806 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 [] [2024-11-27 23:28:30,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:28:34,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:28:38,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:28:42,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:28:42,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:28:42,973 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2024-11-27 23:28:42,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:28:42,976 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 19 states have internal predecessors, (32), 12 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 52 [2024-11-27 23:28:42,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:28:42,977 INFO L225 Difference]: With dead ends: 47 [2024-11-27 23:28:42,977 INFO L226 Difference]: Without dead ends: 45 [2024-11-27 23:28:42,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 82 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 35.9s TimeCoverageRelationStatistics Valid=89, Invalid=340, Unknown=7, NotChecked=164, Total=600 [2024-11-27 23:28:42,978 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 7 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 177 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:28:42,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 146 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 234 Invalid, 5 Unknown, 177 Unchecked, 20.5s Time] [2024-11-27 23:28:42,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-27 23:28:42,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-27 23:28:42,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 23:28:42,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2024-11-27 23:28:42,990 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 52 [2024-11-27 23:28:42,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:28:42,990 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2024-11-27 23:28:42,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 19 states have internal predecessors, (32), 12 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-27 23:28:42,991 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2024-11-27 23:28:42,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 23:28:42,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:28:42,992 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:28:43,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:28:43,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-27 23:28:43,196 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:28:43,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:28:43,197 INFO L85 PathProgramCache]: Analyzing trace with hash 922396971, now seen corresponding path program 3 times [2024-11-27 23:28:43,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:28:43,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583700909] [2024-11-27 23:28:43,197 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:28:43,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:28:43,335 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-27 23:28:43,335 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:28:43,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117903364] [2024-11-27 23:28:43,337 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:28:43,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:28:43,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:28:43,341 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:28:43,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:30:17,785 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 23:30:17,785 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:17,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 23:30:17,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:00,303 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:31:10,628 WARN L286 SmtUtils]: Spent 6.31s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:31:26,736 WARN L286 SmtUtils]: Spent 12.06s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:32:03,099 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:32:15,642 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:33:01,261 WARN L286 SmtUtils]: Spent 7.67s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:33:17,325 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:35:31,317 WARN L286 SmtUtils]: Spent 1.82m on a formula simplification that was a NOOP. DAG size: 59 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:36:11,828 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:36:20,011 WARN L851 $PredicateComparison]: unable to prove that (or (= c___VERIFIER_assert_~cond 1) (and (or (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| 100) (<= 1 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30|) (exists ((v_z_2 Int)) (and (<= v_z_2 18446744073709551615) (<= 0 v_z_2) (exists ((v_y_2 Int) (v_y_1 Int) (|v_ULTIMATE.start_main_~x~0#1_32| Int)) (let ((.cse0 (mod (+ (* |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|) 1) 18446744073709551616))) (and (not (= (+ v_z_2 (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|)) 18446744073709551616)) 0)) (= (+ (* 18446744073709551615 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| .cse0)) (* 18446744073709551615 v_z_2) (* 18446744073709551616 v_y_2)) (* 18446744073709551616 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| v_y_1))) (<= .cse0 0)))))))) (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| 100) (<= 1 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30|) (exists ((v_z_2 Int)) (and (<= v_z_2 18446744073709551615) (<= 0 v_z_2) (exists ((v_y_2 Int) (v_y_1 Int) (|v_ULTIMATE.start_main_~x~0#1_32| Int)) (let ((.cse2 (mod (+ (* |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|) 1) 18446744073709551616)) (.cse1 (+ v_z_2 (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|)) 18446744073709551616)))) (and (not (= .cse1 0)) (= (+ (* 18446744073709551615 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| .cse2)) (* 18446744073709551615 v_z_2) (* 18446744073709551616 v_y_2)) (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| 340282366920938463444927863358058659840) (* 18446744073709551616 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| v_y_1)))) (<= 1 .cse2) (not (= 18446744073709551616 .cse1)))))))))) (= c___VERIFIER_assert_~cond 0))) is different from false [2024-11-27 23:36:48,485 WARN L286 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:37:04,509 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:37:13,172 WARN L851 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| 100) (<= 1 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30|) (exists ((v_z_2 Int)) (and (<= v_z_2 18446744073709551615) (<= 0 v_z_2) (exists ((v_y_2 Int) (v_y_1 Int) (|v_ULTIMATE.start_main_~x~0#1_32| Int)) (let ((.cse0 (mod (+ (* |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|) 1) 18446744073709551616))) (and (not (= (+ v_z_2 (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|)) 18446744073709551616)) 0)) (= (+ (* 18446744073709551615 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| .cse0)) (* 18446744073709551615 v_z_2) (* 18446744073709551616 v_y_2)) (* 18446744073709551616 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| v_y_1))) (<= .cse0 0)))))))) (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| 100) (<= 1 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30|) (exists ((v_z_2 Int)) (and (<= v_z_2 18446744073709551615) (<= 0 v_z_2) (exists ((v_y_2 Int) (v_y_1 Int) (|v_ULTIMATE.start_main_~x~0#1_32| Int)) (let ((.cse2 (mod (+ (* |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|) 1) 18446744073709551616)) (.cse1 (+ v_z_2 (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|)) 18446744073709551616)))) (and (not (= .cse1 0)) (= (+ (* 18446744073709551615 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| .cse2)) (* 18446744073709551615 v_z_2) (* 18446744073709551616 v_y_2)) (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| 340282366920938463444927863358058659840) (* 18446744073709551616 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| v_y_1)))) (<= 1 .cse2) (not (= 18446744073709551616 .cse1)))))))))) is different from false [2024-11-27 23:37:17,177 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| 100) (<= 1 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30|) (exists ((v_z_2 Int)) (and (<= v_z_2 18446744073709551615) (<= 0 v_z_2) (exists ((v_y_2 Int) (v_y_1 Int) (|v_ULTIMATE.start_main_~x~0#1_32| Int)) (let ((.cse0 (mod (+ (* |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|) 1) 18446744073709551616))) (and (not (= (+ v_z_2 (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|)) 18446744073709551616)) 0)) (= (+ (* 18446744073709551615 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| .cse0)) (* 18446744073709551615 v_z_2) (* 18446744073709551616 v_y_2)) (* 18446744073709551616 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| v_y_1))) (<= .cse0 0)))))))) (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| 100) (<= 1 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30|) (exists ((v_z_2 Int)) (and (<= v_z_2 18446744073709551615) (<= 0 v_z_2) (exists ((v_y_2 Int) (v_y_1 Int) (|v_ULTIMATE.start_main_~x~0#1_32| Int)) (let ((.cse2 (mod (+ (* |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|) 1) 18446744073709551616)) (.cse1 (+ v_z_2 (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|)) 18446744073709551616)))) (and (not (= .cse1 0)) (= (+ (* 18446744073709551615 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| .cse2)) (* 18446744073709551615 v_z_2) (* 18446744073709551616 v_y_2)) (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| 340282366920938463444927863358058659840) (* 18446744073709551616 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| v_y_1)))) (<= 1 .cse2) (not (= 18446744073709551616 .cse1)))))))))) is different from true [2024-11-27 23:37:17,177 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 117 trivial. 1 not checked. [2024-11-27 23:37:17,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:08,183 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:38:24,284 WARN L286 SmtUtils]: Spent 12.06s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:38:32,301 WARN L873 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~x~0#1| Int)) (let ((.cse0 (mod (+ (* |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) (* 18446744073709551615 |ULTIMATE.start_main_~x~0#1|) 1) 18446744073709551616))) (or (< 0 .cse0) (= (mod (+ (* |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~z~0#1| (* 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) (* 18446744073709551615 .cse0 |c_ULTIMATE.start_main_~z~0#1|)) 18446744073709551616) 0)))) (forall ((|ULTIMATE.start_main_~x~0#1| Int)) (let ((.cse1 (mod (+ (* |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) (* 18446744073709551615 |ULTIMATE.start_main_~x~0#1|) 1) 18446744073709551616))) (or (< .cse1 1) (= (mod (+ (* |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~z~0#1| (* 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) (* 18446744073709551615 .cse1 |c_ULTIMATE.start_main_~z~0#1|)) 18446744073709551616) 0))))) is different from true [2024-11-27 23:38:32,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:32,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583700909] [2024-11-27 23:38:32,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:38:32,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117903364] [2024-11-27 23:38:32,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117903364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:32,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:38:32,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 23:38:32,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087382195] [2024-11-27 23:38:32,303 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:38:32,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:38:32,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:32,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:38:32,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=143, Unknown=14, NotChecked=78, Total=272 [2024-11-27 23:38:32,304 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-27 23:38:52,236 WARN L286 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:39:01,239 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 [0] [2024-11-27 23:39:05,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:39:09,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:39:13,264 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (or (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| 100) (<= 1 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30|) (exists ((v_z_2 Int)) (and (<= v_z_2 18446744073709551615) (<= 0 v_z_2) (exists ((v_y_2 Int) (v_y_1 Int) (|v_ULTIMATE.start_main_~x~0#1_32| Int)) (let ((.cse1 (mod (+ (* |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|) 1) 18446744073709551616))) (and (not (= (+ v_z_2 (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|)) 18446744073709551616)) 0)) (= (+ (* 18446744073709551615 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| .cse1)) (* 18446744073709551615 v_z_2) (* 18446744073709551616 v_y_2)) (* 18446744073709551616 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| v_y_1))) (<= .cse1 0)))))))) (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| 100) (<= 1 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30|) (exists ((v_z_2 Int)) (and (<= v_z_2 18446744073709551615) (<= 0 v_z_2) (exists ((v_y_2 Int) (v_y_1 Int) (|v_ULTIMATE.start_main_~x~0#1_32| Int)) (let ((.cse3 (mod (+ (* |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|) 1) 18446744073709551616)) (.cse2 (+ v_z_2 (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| |v_ULTIMATE.start_main_~x~0#1_32|)) 18446744073709551616)))) (and (not (= .cse2 0)) (= (+ (* 18446744073709551615 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| .cse3)) (* 18446744073709551615 v_z_2) (* 18446744073709551616 v_y_2)) (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| 340282366920938463444927863358058659840) (* 18446744073709551616 (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_30| v_y_1)))) (<= 1 .cse3) (not (= 18446744073709551616 .cse2)))))))))))) (and (or (and .cse0 (= |c___VERIFIER_assert_#in~cond| 0)) (= |c___VERIFIER_assert_#in~cond| 1)) (or (= c___VERIFIER_assert_~cond 1) (and .cse0 (= c___VERIFIER_assert_~cond 0))) (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond))) is different from false [2024-11-27 23:39:13,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:13,280 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2024-11-27 23:39:13,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:39:13,280 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 70 [2024-11-27 23:39:13,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:13,281 INFO L225 Difference]: With dead ends: 45 [2024-11-27 23:39:13,281 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 23:39:13,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 208.6s TimeCoverageRelationStatistics Valid=57, Invalid=212, Unknown=19, NotChecked=132, Total=420 [2024-11-27 23:39:13,282 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:13,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 70 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 3 Unknown, 61 Unchecked, 13.0s Time] [2024-11-27 23:39:13,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 23:39:13,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 23:39:13,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:39:13,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 23:39:13,284 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2024-11-27 23:39:13,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:13,284 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:39:13,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-27 23:39:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 23:39:13,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 23:39:13,287 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 23:39:13,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 23:39:13,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f794db-713e-4a06-8f62-eed8f048b1d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:39:13,491 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2024-11-27 23:39:13,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.