./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound5.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_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/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_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/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_49708c78-c15f-495c-b3fe-466d10ba3d14/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 9d96fce9cba7910d867f13bc16c5bd69d4168f707f39f60b6964bcaea0f2a9ec --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:28:30,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:28:30,857 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:28:30,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:28:30,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:28:30,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:28:30,905 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:28:30,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:28:30,906 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:28:30,906 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:28:30,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:28:30,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:28:30,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:28:30,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:28:30,907 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:28:30,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:28:30,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:28:30,908 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:28:30,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:28:30,909 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:28:30,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:28:30,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:28:30,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:28:30,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:28:30,911 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:28:30,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:28:30,912 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:28:30,912 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:28:30,912 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:28:30,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:28:30,913 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:28:30,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:28:30,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:28:30,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:28:30,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:28:30,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:28:30,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:28:30,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:28:30,914 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:28:30,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:28:30,914 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:28:30,914 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:28:30,914 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:28:30,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:28:30,914 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:28:30,914 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:28:30,915 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:28:30,915 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:28:30,915 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_49708c78-c15f-495c-b3fe-466d10ba3d14/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 -> 9d96fce9cba7910d867f13bc16c5bd69d4168f707f39f60b6964bcaea0f2a9ec [2024-11-28 03:28:31,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:28:31,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:28:31,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:28:31,312 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:28:31,312 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:28:31,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound5.c [2024-11-28 03:28:34,445 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/data/3fb098cfc/edd4568272f143be9f6c835ededfbd5e/FLAG1c3dbd304 [2024-11-28 03:28:34,728 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:28:34,730 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound5.c [2024-11-28 03:28:34,740 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/data/3fb098cfc/edd4568272f143be9f6c835ededfbd5e/FLAG1c3dbd304 [2024-11-28 03:28:35,054 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/data/3fb098cfc/edd4568272f143be9f6c835ededfbd5e [2024-11-28 03:28:35,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:28:35,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:28:35,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:28:35,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:28:35,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:28:35,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db9656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35, skipping insertion in model container [2024-11-28 03:28:35,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,081 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:28:35,275 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_49708c78-c15f-495c-b3fe-466d10ba3d14/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound5.c[546,559] [2024-11-28 03:28:35,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:28:35,311 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:28:35,326 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_49708c78-c15f-495c-b3fe-466d10ba3d14/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound5.c[546,559] [2024-11-28 03:28:35,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:28:35,351 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:28:35,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35 WrapperNode [2024-11-28 03:28:35,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:28:35,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:28:35,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:28:35,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:28:35,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,387 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2024-11-28 03:28:35,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:28:35,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:28:35,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:28:35,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:28:35,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,410 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:28:35,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,413 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:28:35,421 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:28:35,421 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:28:35,421 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:28:35,422 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (1/1) ... [2024-11-28 03:28:35,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:28:35,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:35,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:28:35,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:28:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:28:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:28:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:28:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:28:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:28:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:28:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:28:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:28:35,566 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:28:35,567 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:28:35,716 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-28 03:28:35,717 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:28:35,729 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:28:35,729 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:28:35,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:28:35 BoogieIcfgContainer [2024-11-28 03:28:35,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:28:35,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:28:35,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:28:35,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:28:35,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:28:35" (1/3) ... [2024-11-28 03:28:35,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b49cb8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:28:35, skipping insertion in model container [2024-11-28 03:28:35,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:28:35" (2/3) ... [2024-11-28 03:28:35,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b49cb8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:28:35, skipping insertion in model container [2024-11-28 03:28:35,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:28:35" (3/3) ... [2024-11-28 03:28:35,746 INFO L128 eAbstractionObserver]: Analyzing ICFG geo1-ll_unwindbound5.c [2024-11-28 03:28:35,765 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:28:35,767 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG geo1-ll_unwindbound5.c that has 3 procedures, 25 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:28:35,842 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:28:35,856 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;@7d56cdaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:28:35,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:28:35,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:28:35,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 03:28:35,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:35,869 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:35,870 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:35,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:35,876 INFO L85 PathProgramCache]: Analyzing trace with hash 995043441, now seen corresponding path program 1 times [2024-11-28 03:28:35,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:35,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399568920] [2024-11-28 03:28:35,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:35,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:28:36,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:36,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399568920] [2024-11-28 03:28:36,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399568920] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:28:36,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630840195] [2024-11-28 03:28:36,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:36,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:36,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:36,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:28:36,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:28:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:36,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:28:36,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:36,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:28:36,163 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:28:36,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630840195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:36,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:28:36,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:28:36,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828778815] [2024-11-28 03:28:36,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:36,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:28:36,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:36,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:28:36,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:28:36,199 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:28:36,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:36,223 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2024-11-28 03:28:36,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:28:36,227 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2024-11-28 03:28:36,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:36,239 INFO L225 Difference]: With dead ends: 47 [2024-11-28 03:28:36,239 INFO L226 Difference]: Without dead ends: 21 [2024-11-28 03:28:36,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:28:36,248 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:36,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:28:36,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-28 03:28:36,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-28 03:28:36,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:28:36,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-11-28 03:28:36,292 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 19 [2024-11-28 03:28:36,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:36,293 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-28 03:28:36,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:28:36,294 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-11-28 03:28:36,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 03:28:36,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:36,296 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:36,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:28:36,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:28:36,501 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:36,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:36,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1090720716, now seen corresponding path program 1 times [2024-11-28 03:28:36,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:36,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724784761] [2024-11-28 03:28:36,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:36,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:28:36,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766155429] [2024-11-28 03:28:36,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:36,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:36,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:36,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:28:36,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:28:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:36,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:28:36,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:36,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:28:36,741 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:28:36,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:36,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724784761] [2024-11-28 03:28:36,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:28:36,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766155429] [2024-11-28 03:28:36,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766155429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:36,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:36,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:28:36,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102919865] [2024-11-28 03:28:36,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:36,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:28:36,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:36,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:28:36,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:28:36,744 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:28:36,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:36,841 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2024-11-28 03:28:36,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:28:36,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-28 03:28:36,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:36,844 INFO L225 Difference]: With dead ends: 32 [2024-11-28 03:28:36,844 INFO L226 Difference]: Without dead ends: 30 [2024-11-28 03:28:36,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:28:36,845 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 5 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:36,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 73 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:28:36,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-28 03:28:36,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2024-11-28 03:28:36,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:28:36,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-11-28 03:28:36,857 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 19 [2024-11-28 03:28:36,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:36,859 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-11-28 03:28:36,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:28:36,861 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-11-28 03:28:36,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 03:28:36,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:36,861 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:36,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:28:37,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:37,062 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:37,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:37,064 INFO L85 PathProgramCache]: Analyzing trace with hash 578375911, now seen corresponding path program 1 times [2024-11-28 03:28:37,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:37,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597779421] [2024-11-28 03:28:37,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:37,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:37,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:28:37,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:37,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597779421] [2024-11-28 03:28:37,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597779421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:37,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:37,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:28:37,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135330745] [2024-11-28 03:28:37,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:37,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:28:37,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:37,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:28:37,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:28:37,185 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:28:37,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:37,203 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2024-11-28 03:28:37,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:28:37,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-28 03:28:37,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:37,205 INFO L225 Difference]: With dead ends: 36 [2024-11-28 03:28:37,205 INFO L226 Difference]: Without dead ends: 28 [2024-11-28 03:28:37,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:28:37,206 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:37,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 54 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:28:37,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-28 03:28:37,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-28 03:28:37,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:28:37,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2024-11-28 03:28:37,213 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 20 [2024-11-28 03:28:37,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:37,214 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2024-11-28 03:28:37,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:28:37,214 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2024-11-28 03:28:37,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 03:28:37,215 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:37,215 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:37,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:28:37,215 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:37,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:37,216 INFO L85 PathProgramCache]: Analyzing trace with hash -927472774, now seen corresponding path program 1 times [2024-11-28 03:28:37,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:37,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050541688] [2024-11-28 03:28:37,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:37,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:37,841 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:28:37,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:37,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050541688] [2024-11-28 03:28:37,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050541688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:28:37,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303082443] [2024-11-28 03:28:37,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:37,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:37,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:37,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:28:37,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:28:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:37,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:28:37,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:28:38,166 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:28:38,370 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:28:38,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303082443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:28:38,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:28:38,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 12 [2024-11-28 03:28:38,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118591293] [2024-11-28 03:28:38,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:28:38,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:28:38,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:38,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:28:38,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:28:38,372 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 12 states, 10 states have (on average 2.5) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:28:42,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:28:42,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:42,539 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2024-11-28 03:28:42,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:28:42,539 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.5) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2024-11-28 03:28:42,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:42,540 INFO L225 Difference]: With dead ends: 42 [2024-11-28 03:28:42,540 INFO L226 Difference]: Without dead ends: 36 [2024-11-28 03:28:42,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:28:42,541 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 7 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:42,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 121 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 03:28:42,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-28 03:28:42,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-28 03:28:42,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.08) internal successors, (27), 27 states have internal predecessors, (27), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:28:42,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2024-11-28 03:28:42,550 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 26 [2024-11-28 03:28:42,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:42,550 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2024-11-28 03:28:42,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.5) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:28:42,550 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2024-11-28 03:28:42,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 03:28:42,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:42,551 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:42,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:28:42,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:42,752 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:42,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:42,753 INFO L85 PathProgramCache]: Analyzing trace with hash -505542500, now seen corresponding path program 1 times [2024-11-28 03:28:42,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:42,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767640511] [2024-11-28 03:28:42,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:42,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:28:42,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323727055] [2024-11-28 03:28:42,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:42,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:42,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:42,829 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:28:42,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:28:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:42,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 03:28:42,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:28:43,266 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:28:59,554 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 [2024-11-28 03:29:27,832 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 [2024-11-28 03:29:41,468 WARN L286 SmtUtils]: Spent 5.57s 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) [2024-11-28 03:29:46,611 WARN L286 SmtUtils]: Spent 5.14s 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) [2024-11-28 03:29:54,719 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 10 not checked. [2024-11-28 03:29:54,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:54,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767640511] [2024-11-28 03:29:54,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:29:54,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323727055] [2024-11-28 03:29:54,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323727055] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:29:54,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:29:54,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2024-11-28 03:29:54,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653111608] [2024-11-28 03:29:54,720 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:54,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:29:54,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:54,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:29:54,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=198, Unknown=3, NotChecked=58, Total=306 [2024-11-28 03:29:54,722 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 15 states have internal predecessors, (39), 8 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 03:30:03,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:30:15,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:30:19,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:30:23,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:30:27,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:30:31,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:30:35,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:30:39,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:30:39,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:39,587 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2024-11-28 03:30:39,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:30:39,588 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 15 states have internal predecessors, (39), 8 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 35 [2024-11-28 03:30:39,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:39,590 INFO L225 Difference]: With dead ends: 57 [2024-11-28 03:30:39,590 INFO L226 Difference]: Without dead ends: 55 [2024-11-28 03:30:39,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=71, Invalid=274, Unknown=5, NotChecked=70, Total=420 [2024-11-28 03:30:39,594 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 14 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 105 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:39,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 167 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 145 Invalid, 8 Unknown, 105 Unchecked, 32.4s Time] [2024-11-28 03:30:39,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-28 03:30:39,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2024-11-28 03:30:39,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.135135135135135) internal successors, (42), 39 states have internal predecessors, (42), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:30:39,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2024-11-28 03:30:39,618 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 35 [2024-11-28 03:30:39,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:39,619 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2024-11-28 03:30:39,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 15 states have internal predecessors, (39), 8 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 03:30:39,619 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2024-11-28 03:30:39,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 03:30:39,621 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:39,621 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:39,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:30:39,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:39,822 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:39,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:39,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1539031423, now seen corresponding path program 1 times [2024-11-28 03:30:39,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:39,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814958252] [2024-11-28 03:30:39,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:39,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:39,991 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:30:39,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:39,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814958252] [2024-11-28 03:30:39,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814958252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:39,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16227298] [2024-11-28 03:30:39,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:39,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:39,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:39,996 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:39,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:30:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:40,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:30:40,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:30:40,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:40,284 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:30:40,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16227298] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:30:40,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:30:40,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 9 [2024-11-28 03:30:40,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318822115] [2024-11-28 03:30:40,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:40,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:30:40,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:40,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:30:40,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:30:40,289 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 6 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 03:30:40,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:40,429 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2024-11-28 03:30:40,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:30:40,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 6 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 36 [2024-11-28 03:30:40,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:40,432 INFO L225 Difference]: With dead ends: 68 [2024-11-28 03:30:40,432 INFO L226 Difference]: Without dead ends: 60 [2024-11-28 03:30:40,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:30:40,433 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:40,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 67 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:30:40,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-28 03:30:40,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-28 03:30:40,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 45 states have internal predecessors, (45), 9 states have call successors, (9), 7 states have call predecessors, (9), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:30:40,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2024-11-28 03:30:40,460 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 36 [2024-11-28 03:30:40,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:40,460 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2024-11-28 03:30:40,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 6 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 03:30:40,461 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2024-11-28 03:30:40,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 03:30:40,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:40,465 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:40,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:30:40,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 03:30:40,666 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:40,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:40,666 INFO L85 PathProgramCache]: Analyzing trace with hash -803418824, now seen corresponding path program 2 times [2024-11-28 03:30:40,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:40,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299733564] [2024-11-28 03:30:40,667 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:30:40,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:40,718 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:30:40,718 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:30:41,036 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 60 proven. 5 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 03:30:41,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:41,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299733564] [2024-11-28 03:30:41,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299733564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:41,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840773174] [2024-11-28 03:30:41,037 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:30:41,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:41,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:41,040 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:41,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:30:41,136 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:30:41,137 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:30:41,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:30:41,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:41,297 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 100 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:30:41,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:41,474 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 60 proven. 5 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 03:30:41,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840773174] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:30:41,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:30:41,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 9 [2024-11-28 03:30:41,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339927763] [2024-11-28 03:30:41,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:41,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:30:41,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:41,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:30:41,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:30:41,481 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 7 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 03:30:41,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:41,611 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2024-11-28 03:30:41,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:30:41,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 7 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 59 [2024-11-28 03:30:41,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:41,616 INFO L225 Difference]: With dead ends: 71 [2024-11-28 03:30:41,616 INFO L226 Difference]: Without dead ends: 57 [2024-11-28 03:30:41,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 6 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:30:41,617 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 5 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:41,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 137 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:30:41,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-28 03:30:41,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-28 03:30:41,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 42 states have (on average 1.0) internal successors, (42), 42 states have internal predecessors, (42), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:30:41,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2024-11-28 03:30:41,643 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 59 [2024-11-28 03:30:41,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:41,647 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2024-11-28 03:30:41,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 7 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 03:30:41,647 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2024-11-28 03:30:41,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 03:30:41,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:41,648 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:41,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:30:41,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:41,849 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:41,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:41,850 INFO L85 PathProgramCache]: Analyzing trace with hash 894799971, now seen corresponding path program 2 times [2024-11-28 03:30:41,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:41,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109734581] [2024-11-28 03:30:41,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:30:41,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:41,923 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:30:41,923 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:30:41,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538069891] [2024-11-28 03:30:41,929 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:30:41,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:41,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:41,935 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:41,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:30:42,074 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:30:42,074 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:30:42,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 03:30:42,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:43,082 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 21 proven. 54 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-28 03:30:43,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:59,658 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 [2024-11-28 03:31:27,970 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 [2024-11-28 03:31:48,132 WARN L286 SmtUtils]: Spent 8.01s 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) [2024-11-28 03:32:08,388 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 [2024-11-28 03:32:44,880 WARN L851 $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 false [2024-11-28 03:32:50,425 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 [2024-11-28 03:33:21,280 WARN L286 SmtUtils]: Spent 6.16s 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) [2024-11-28 03:33:29,408 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_~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| |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|)) 18446744073709551616) 0) (not (= 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)))) is different from true [2024-11-28 03:33:37,469 WARN L286 SmtUtils]: Spent 8.05s 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) [2024-11-28 03:33:57,820 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 50 not checked. [2024-11-28 03:33:57,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:57,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109734581] [2024-11-28 03:33:57,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:57,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538069891] [2024-11-28 03:33:57,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538069891] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:33:57,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:33:57,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 26 [2024-11-28 03:33:57,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406863401] [2024-11-28 03:33:57,821 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:57,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 03:33:57,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:57,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 03:33:57,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=354, Unknown=7, NotChecked=210, Total=650 [2024-11-28 03:33:57,823 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand has 26 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 15 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-28 03:34:00,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:00,463 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2024-11-28 03:34:00,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:34:00,464 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 15 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) Word has length 60 [2024-11-28 03:34:00,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:00,464 INFO L225 Difference]: With dead ends: 57 [2024-11-28 03:34:00,465 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:34:00,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 92 SyntacticMatches, 7 SemanticMatches, 25 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 32.7s TimeCoverageRelationStatistics Valid=86, Invalid=389, Unknown=7, NotChecked=220, Total=702 [2024-11-28 03:34:00,466 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 4 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 191 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:00,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 340 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 258 Invalid, 0 Unknown, 191 Unchecked, 0.5s Time] [2024-11-28 03:34:00,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:34:00,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:34:00,467 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) [2024-11-28 03:34:00,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:34:00,467 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2024-11-28 03:34:00,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:00,468 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:34:00,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 15 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-28 03:34:00,468 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:34:00,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:34:00,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:34:00,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:00,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:00,678 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2024-11-28 03:34:00,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:34:06,202 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:34:06,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:34:06 BoogieIcfgContainer [2024-11-28 03:34:06,222 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:34:06,223 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:34:06,223 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:34:06,224 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:34:06,224 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:28:35" (3/4) ... [2024-11-28 03:34:06,227 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:34:06,232 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 03:34:06,232 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-28 03:34:06,236 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-28 03:34:06,236 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 03:34:06,236 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:34:06,236 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:34:06,327 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:34:06,327 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:34:06,327 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:34:06,328 INFO L158 Benchmark]: Toolchain (without parser) took 331269.41ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 92.9MB in the beginning and 101.6MB in the end (delta: -8.7MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-11-28 03:34:06,328 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:34:06,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.81ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.9MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:34:06,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.91ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:34:06,329 INFO L158 Benchmark]: Boogie Preprocessor took 32.32ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:34:06,329 INFO L158 Benchmark]: RCFGBuilder took 309.87ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 69.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:34:06,330 INFO L158 Benchmark]: TraceAbstraction took 330487.94ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 68.8MB in the beginning and 106.0MB in the end (delta: -37.2MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2024-11-28 03:34:06,330 INFO L158 Benchmark]: Witness Printer took 103.79ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 101.6MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:34:06,331 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.81ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.9MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.91ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.32ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 309.87ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 69.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 330487.94ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 68.8MB in the beginning and 106.0MB in the end (delta: -37.2MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. * Witness Printer took 103.79ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 101.6MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 324.9s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 52.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 37.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 987 SdHoareTripleChecker+Invalid, 37.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 296 IncrementalHoareTripleChecker+Unchecked, 786 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 559 IncrementalHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 201 mSDtfsCounter, 559 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 505 GetRequests, 407 SyntacticMatches, 18 SemanticMatches, 80 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 58.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=6, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 269.9s InterpolantComputationTime, 528 NumberOfCodeBlocks, 528 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 613 ConstructedInterpolants, 1 QuantifiedInterpolants, 3293 SizeOfPredicates, 11 NumberOfNonLiveVariables, 763 ConjunctsInSsa, 113 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 495/673 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((((((((z <= 2147483647) && (counter == 4)) && (y == ((((__int128) ((long long) z * z) * z) * z) * z))) && (1 <= z)) && (x == ((((z + (((__int128) ((long long) z * z) * z) * z)) + 1) + ((long long) z * z)) + ((__int128) ((long long) z * z) * z)))) || (((((z <= 2147483647) && (y == ((long long) z * z))) && (x == ((long long) z + 1))) && (counter == 1)) && (1 <= z))) || (((((counter == 3) && (z <= 2147483647)) && (((((long long) z + 1) + ((long long) z * z)) + ((__int128) ((long long) z * z) * z)) == x)) && (y == (((__int128) ((long long) z * z) * z) * z))) && (1 <= z))) || (((((y == z) && (z <= 2147483647)) && (x == 1)) && (counter == 0)) && (1 <= z))) || (((((z <= 2147483647) && ((((((__int128) ((long long) z * z) * z) * z) * z) * z) == y)) && ((((((z + (((__int128) ((long long) z * z) * z) * z)) + ((((__int128) ((long long) z * z) * z) * z) * z)) + 1) + ((long long) z * z)) + ((__int128) ((long long) z * z) * z)) == x)) && (5 <= counter)) && (1 <= z))) || (((((z <= 2147483647) && (y == ((__int128) ((long long) z * z) * z))) && (x == (((long long) z + 1) + ((long long) z * z)))) && (1 <= z)) && (counter == 2))) RESULT: Ultimate proved your program to be correct! [2024-11-28 03:34:06,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49708c78-c15f-495c-b3fe-466d10ba3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE