./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd --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 be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:06:59,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:06:59,133 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:06:59,142 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:06:59,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:06:59,185 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:06:59,186 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:06:59,187 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:06:59,187 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:06:59,187 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:06:59,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:06:59,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:06:59,188 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:06:59,188 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:06:59,189 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:06:59,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:06:59,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:06:59,189 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:06:59,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:06:59,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:06:59,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:06:59,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:06:59,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:06:59,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:06:59,191 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:06:59,191 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:06:59,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:06:59,191 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:06:59,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:06:59,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:06:59,191 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:06:59,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:06:59,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:06:59,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:06:59,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:06:59,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:06:59,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:06:59,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:06:59,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:06:59,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:06:59,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:06:59,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:06:59,193 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_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd 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 -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-13 16:06:59,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:06:59,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:06:59,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:06:59,645 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:06:59,646 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:06:59,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i Unable to find full path for "g++" [2024-11-13 16:07:02,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:07:02,673 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:07:02,674 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i [2024-11-13 16:07:02,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/data/ad80d257c/c86877d0f4ef452299105f1dc77025f3/FLAGa277d5bb0 [2024-11-13 16:07:02,716 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/data/ad80d257c/c86877d0f4ef452299105f1dc77025f3 [2024-11-13 16:07:02,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:07:02,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:07:02,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:07:02,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:07:02,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:07:02,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:07:02" (1/1) ... [2024-11-13 16:07:02,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@362415fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:02, skipping insertion in model container [2024-11-13 16:07:02,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:07:02" (1/1) ... [2024-11-13 16:07:02,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:07:03,323 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_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i[33519,33532] [2024-11-13 16:07:03,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:07:03,517 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:07:03,564 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_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i[33519,33532] [2024-11-13 16:07:03,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:07:03,783 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:07:03,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03 WrapperNode [2024-11-13 16:07:03,784 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:07:03,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:07:03,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:07:03,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:07:03,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (1/1) ... [2024-11-13 16:07:03,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (1/1) ... [2024-11-13 16:07:03,991 INFO L138 Inliner]: procedures = 177, calls = 324, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1557 [2024-11-13 16:07:03,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:07:03,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:07:03,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:07:03,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:07:04,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (1/1) ... [2024-11-13 16:07:04,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (1/1) ... [2024-11-13 16:07:04,023 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (1/1) ... [2024-11-13 16:07:04,213 INFO L175 MemorySlicer]: Split 302 memory accesses to 3 slices as follows [2, 266, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2024-11-13 16:07:04,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (1/1) ... [2024-11-13 16:07:04,213 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (1/1) ... [2024-11-13 16:07:04,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (1/1) ... [2024-11-13 16:07:04,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (1/1) ... [2024-11-13 16:07:04,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (1/1) ... [2024-11-13 16:07:04,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (1/1) ... [2024-11-13 16:07:04,380 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:07:04,383 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:07:04,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:07:04,383 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:07:04,385 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (1/1) ... [2024-11-13 16:07:04,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:07:04,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:07:04,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:07:04,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:07:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:07:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:07:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 16:07:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:07:04,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:07:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:07:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:07:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 16:07:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 16:07:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 16:07:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 16:07:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 16:07:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 16:07:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 16:07:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:07:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:07:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 16:07:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 16:07:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 16:07:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:07:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 16:07:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 16:07:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 16:07:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:07:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:07:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:07:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:07:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:07:04,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:07:04,816 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:07:04,819 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:07:07,526 INFO L? ?]: Removed 337 outVars from TransFormulas that were not future-live. [2024-11-13 16:07:07,527 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:07:07,578 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:07:07,582 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-11-13 16:07:07,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:07:07 BoogieIcfgContainer [2024-11-13 16:07:07,583 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:07:07,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:07:07,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:07:07,599 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:07:07,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:07:02" (1/3) ... [2024-11-13 16:07:07,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff1780a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:07:07, skipping insertion in model container [2024-11-13 16:07:07,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:07:03" (2/3) ... [2024-11-13 16:07:07,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff1780a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:07:07, skipping insertion in model container [2024-11-13 16:07:07,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:07:07" (3/3) ... [2024-11-13 16:07:07,605 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test3-2.i [2024-11-13 16:07:07,628 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:07:07,631 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_nondet_test3-2.i that has 5 procedures, 443 locations, 1 initial locations, 43 loop locations, and 1 error locations. [2024-11-13 16:07:07,750 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:07:07,773 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;@2d207444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:07:07,773 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 16:07:07,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 435 states, 426 states have (on average 1.624413145539906) internal successors, (692), 428 states have internal predecessors, (692), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 16:07:07,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 16:07:07,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:07:07,788 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:07:07,789 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:07:07,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:07:07,794 INFO L85 PathProgramCache]: Analyzing trace with hash -159135454, now seen corresponding path program 1 times [2024-11-13 16:07:07,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:07:07,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706474670] [2024-11-13 16:07:07,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:07,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:07:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:08,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:07:08,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:07:08,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706474670] [2024-11-13 16:07:08,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706474670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:07:08,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:07:08,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:07:08,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393517386] [2024-11-13 16:07:08,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:07:08,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:07:08,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:07:08,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:07:08,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:07:08,127 INFO L87 Difference]: Start difference. First operand has 435 states, 426 states have (on average 1.624413145539906) internal successors, (692), 428 states have internal predecessors, (692), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:07:08,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:07:08,249 INFO L93 Difference]: Finished difference Result 867 states and 1402 transitions. [2024-11-13 16:07:08,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:07:08,255 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-13 16:07:08,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:07:08,277 INFO L225 Difference]: With dead ends: 867 [2024-11-13 16:07:08,277 INFO L226 Difference]: Without dead ends: 397 [2024-11-13 16:07:08,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:07:08,291 INFO L432 NwaCegarLoop]: 625 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, 625 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 [2024-11-13 16:07:08,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:07:08,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-13 16:07:08,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-13 16:07:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 389 states have (on average 1.4473007712082262) internal successors, (563), 390 states have internal predecessors, (563), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 16:07:08,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 573 transitions. [2024-11-13 16:07:08,412 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 573 transitions. Word has length 12 [2024-11-13 16:07:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:07:08,414 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 573 transitions. [2024-11-13 16:07:08,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:07:08,415 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 573 transitions. [2024-11-13 16:07:08,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 16:07:08,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:07:08,416 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:07:08,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:07:08,418 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:07:08,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:07:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash -998464746, now seen corresponding path program 1 times [2024-11-13 16:07:08,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:07:08,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148347298] [2024-11-13 16:07:08,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:08,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:07:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:08,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:07:08,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:07:08,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148347298] [2024-11-13 16:07:08,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148347298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:07:08,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:07:08,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:07:08,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058167097] [2024-11-13 16:07:08,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:07:08,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:07:08,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:07:08,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:07:08,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:07:08,845 INFO L87 Difference]: Start difference. First operand 397 states and 573 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:07:09,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:07:09,438 INFO L93 Difference]: Finished difference Result 1087 states and 1587 transitions. [2024-11-13 16:07:09,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:07:09,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-13 16:07:09,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:07:09,446 INFO L225 Difference]: With dead ends: 1087 [2024-11-13 16:07:09,447 INFO L226 Difference]: Without dead ends: 691 [2024-11-13 16:07:09,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:07:09,452 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 431 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:07:09,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 1639 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 16:07:09,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-13 16:07:09,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 690. [2024-11-13 16:07:09,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 681 states have (on average 1.4669603524229076) internal successors, (999), 683 states have internal predecessors, (999), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:07:09,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1011 transitions. [2024-11-13 16:07:09,515 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1011 transitions. Word has length 14 [2024-11-13 16:07:09,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:07:09,516 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 1011 transitions. [2024-11-13 16:07:09,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:07:09,516 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1011 transitions. [2024-11-13 16:07:09,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 16:07:09,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:07:09,519 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:07:09,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:07:09,520 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:07:09,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:07:09,521 INFO L85 PathProgramCache]: Analyzing trace with hash 648534398, now seen corresponding path program 1 times [2024-11-13 16:07:09,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:07:09,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105803774] [2024-11-13 16:07:09,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:09,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:07:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:07:09,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:07:09,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105803774] [2024-11-13 16:07:09,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105803774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:07:09,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:07:09,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:07:09,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954287263] [2024-11-13 16:07:09,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:07:09,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:07:09,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:07:09,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:07:09,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:07:09,974 INFO L87 Difference]: Start difference. First operand 690 states and 1011 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:07:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:07:10,166 INFO L93 Difference]: Finished difference Result 961 states and 1400 transitions. [2024-11-13 16:07:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:07:10,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-13 16:07:10,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:07:10,174 INFO L225 Difference]: With dead ends: 961 [2024-11-13 16:07:10,174 INFO L226 Difference]: Without dead ends: 606 [2024-11-13 16:07:10,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:07:10,179 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 30 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:07:10,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1394 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:07:10,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-13 16:07:10,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2024-11-13 16:07:10,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 597 states have (on average 1.4154103852596316) internal successors, (845), 599 states have internal predecessors, (845), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:07:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 857 transitions. [2024-11-13 16:07:10,242 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 857 transitions. Word has length 68 [2024-11-13 16:07:10,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:07:10,243 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 857 transitions. [2024-11-13 16:07:10,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:07:10,244 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 857 transitions. [2024-11-13 16:07:10,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 16:07:10,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:07:10,251 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:07:10,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:07:10,251 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:07:10,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:07:10,252 INFO L85 PathProgramCache]: Analyzing trace with hash -815366006, now seen corresponding path program 1 times [2024-11-13 16:07:10,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:07:10,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518288994] [2024-11-13 16:07:10,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:10,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:07:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:11,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:07:11,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:07:11,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518288994] [2024-11-13 16:07:11,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518288994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:07:11,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:07:11,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:07:11,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744070480] [2024-11-13 16:07:11,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:07:11,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:07:11,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:07:11,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:07:11,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:07:11,406 INFO L87 Difference]: Start difference. First operand 606 states and 857 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:07:11,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:07:11,651 INFO L93 Difference]: Finished difference Result 1119 states and 1552 transitions. [2024-11-13 16:07:11,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:07:11,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-13 16:07:11,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:07:11,658 INFO L225 Difference]: With dead ends: 1119 [2024-11-13 16:07:11,659 INFO L226 Difference]: Without dead ends: 845 [2024-11-13 16:07:11,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:07:11,661 INFO L432 NwaCegarLoop]: 521 mSDtfsCounter, 464 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:07:11,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 2031 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:07:11,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-13 16:07:11,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 605. [2024-11-13 16:07:11,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 596 states have (on average 1.4144295302013423) internal successors, (843), 598 states have internal predecessors, (843), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:07:11,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 855 transitions. [2024-11-13 16:07:11,709 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 855 transitions. Word has length 68 [2024-11-13 16:07:11,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:07:11,710 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 855 transitions. [2024-11-13 16:07:11,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:07:11,710 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 855 transitions. [2024-11-13 16:07:11,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 16:07:11,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:07:11,715 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:07:11,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:07:11,715 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:07:11,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:07:11,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1974311524, now seen corresponding path program 1 times [2024-11-13 16:07:11,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:07:11,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136690961] [2024-11-13 16:07:11,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:11,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:07:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:12,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 16:07:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:12,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 16:07:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:12,316 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:07:12,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:07:12,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136690961] [2024-11-13 16:07:12,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136690961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:07:12,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:07:12,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:07:12,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644676004] [2024-11-13 16:07:12,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:07:12,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:07:12,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:07:12,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:07:12,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:07:12,323 INFO L87 Difference]: Start difference. First operand 605 states and 855 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 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) [2024-11-13 16:07:13,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:07:13,030 INFO L93 Difference]: Finished difference Result 1119 states and 1574 transitions. [2024-11-13 16:07:13,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:07:13,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 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 105 [2024-11-13 16:07:13,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:07:13,036 INFO L225 Difference]: With dead ends: 1119 [2024-11-13 16:07:13,036 INFO L226 Difference]: Without dead ends: 524 [2024-11-13 16:07:13,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:07:13,038 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 41 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:07:13,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1423 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 16:07:13,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-11-13 16:07:13,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 521. [2024-11-13 16:07:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 512 states have (on average 1.345703125) internal successors, (689), 514 states have internal predecessors, (689), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:07:13,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 701 transitions. [2024-11-13 16:07:13,075 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 701 transitions. Word has length 105 [2024-11-13 16:07:13,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:07:13,077 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 701 transitions. [2024-11-13 16:07:13,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 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) [2024-11-13 16:07:13,078 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 701 transitions. [2024-11-13 16:07:13,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 16:07:13,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:07:13,080 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:07:13,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:07:13,083 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:07:13,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:07:13,084 INFO L85 PathProgramCache]: Analyzing trace with hash 2046699820, now seen corresponding path program 1 times [2024-11-13 16:07:13,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:07:13,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680705258] [2024-11-13 16:07:13,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:13,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:07:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:13,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 16:07:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:13,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 16:07:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:07:13,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:07:13,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680705258] [2024-11-13 16:07:13,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680705258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:07:13,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:07:13,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:07:13,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235417370] [2024-11-13 16:07:13,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:07:13,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:07:13,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:07:13,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:07:13,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:07:13,481 INFO L87 Difference]: Start difference. First operand 521 states and 701 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 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) [2024-11-13 16:07:13,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:07:13,915 INFO L93 Difference]: Finished difference Result 1010 states and 1369 transitions. [2024-11-13 16:07:13,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:07:13,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 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 105 [2024-11-13 16:07:13,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:07:13,920 INFO L225 Difference]: With dead ends: 1010 [2024-11-13 16:07:13,921 INFO L226 Difference]: Without dead ends: 524 [2024-11-13 16:07:13,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:07:13,924 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 10 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:07:13,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1087 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 16:07:13,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-11-13 16:07:13,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 521. [2024-11-13 16:07:13,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 512 states have (on average 1.333984375) internal successors, (683), 514 states have internal predecessors, (683), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:07:13,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 695 transitions. [2024-11-13 16:07:13,954 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 695 transitions. Word has length 105 [2024-11-13 16:07:13,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:07:13,955 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 695 transitions. [2024-11-13 16:07:13,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 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) [2024-11-13 16:07:13,955 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 695 transitions. [2024-11-13 16:07:13,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 16:07:13,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:07:13,958 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:07:13,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 16:07:13,961 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:07:13,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:07:13,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2098394970, now seen corresponding path program 1 times [2024-11-13 16:07:13,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:07:13,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994600568] [2024-11-13 16:07:13,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:13,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:07:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:14,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 16:07:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:14,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 16:07:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:14,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:07:14,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:07:14,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994600568] [2024-11-13 16:07:14,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994600568] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:07:14,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403554430] [2024-11-13 16:07:14,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:14,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:07:14,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:07:14,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:07:14,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:07:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:15,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-13 16:07:15,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:07:15,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:07:15,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-13 16:07:17,731 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:07:17,732 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:07:17,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403554430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:07:17,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:07:17,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2024-11-13 16:07:17,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279587734] [2024-11-13 16:07:17,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:07:17,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 16:07:17,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:07:17,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 16:07:17,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-13 16:07:17,736 INFO L87 Difference]: Start difference. First operand 521 states and 695 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:07:20,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:07:20,592 INFO L93 Difference]: Finished difference Result 1239 states and 1669 transitions. [2024-11-13 16:07:20,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 16:07:20,594 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 1 states have call successors, (3), 1 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 105 [2024-11-13 16:07:20,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:07:20,599 INFO L225 Difference]: With dead ends: 1239 [2024-11-13 16:07:20,599 INFO L226 Difference]: Without dead ends: 763 [2024-11-13 16:07:20,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2024-11-13 16:07:20,602 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 685 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:07:20,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 2115 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 16:07:20,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-13 16:07:20,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 521. [2024-11-13 16:07:20,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 512 states have (on average 1.33203125) internal successors, (682), 514 states have internal predecessors, (682), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:07:20,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 694 transitions. [2024-11-13 16:07:20,639 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 694 transitions. Word has length 105 [2024-11-13 16:07:20,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:07:20,639 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 694 transitions. [2024-11-13 16:07:20,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:07:20,640 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 694 transitions. [2024-11-13 16:07:20,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 16:07:20,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:07:20,642 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:07:20,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 16:07:20,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:07:20,847 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:07:20,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:07:20,847 INFO L85 PathProgramCache]: Analyzing trace with hash 733451083, now seen corresponding path program 1 times [2024-11-13 16:07:20,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:07:20,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082792690] [2024-11-13 16:07:20,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:20,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:07:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:21,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 16:07:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:21,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 16:07:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:21,670 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:07:21,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:07:21,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082792690] [2024-11-13 16:07:21,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082792690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:07:21,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554880898] [2024-11-13 16:07:21,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:07:21,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:07:21,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:07:21,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:07:21,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a055346-2a3c-41c2-a5d7-266b7ce23c5a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:07:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:07:22,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 16:07:22,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:08:42,261 WARN L286 SmtUtils]: Spent 5.61s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:08:47,415 WARN L286 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 16 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:09:06,287 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:09:18,336 WARN L286 SmtUtils]: Spent 12.05s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:09:34,195 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:09:46,215 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:02,605 WARN L286 SmtUtils]: Spent 12.04s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:14,370 WARN L286 SmtUtils]: Spent 11.76s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:31,942 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:43,962 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:10:55,980 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:11:08,006 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:11:24,319 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:11:36,337 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:11:48,350 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:12:00,366 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:12:16,892 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:12:28,916 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:12:40,935 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:12:52,957 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:13:04,905 WARN L286 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 21 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:13:12,922 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:13:20,931 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:13:40,995 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:13:53,014 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:14:05,032 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:14:17,047 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:14:29,063 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:14:37,073 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:14:45,086 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:14:53,242 WARN L286 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:15:05,281 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:15:13,297 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:15:25,314 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:15:37,327 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:15:49,348 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:16:01,506 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:16:09,524 WARN L286 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:16:17,536 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:16:31,705 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:16:39,718 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:16:51,736 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:17:03,753 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:17:15,768 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:17:27,780 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:17:35,790 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:17:43,804 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:17:56,170 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:18:08,212 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-11-13 16:18:20,226 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:18:32,245 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:18:48,281 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:18:57,814 WARN L286 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:19:09,853 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:19:17,865 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:19:33,195 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:19:45,213 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:19:51,356 WARN L286 SmtUtils]: Spent 6.14s on a formula simplification. DAG size of input: 12 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:20:03,379 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:20:15,395 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-11-13 16:20:41,563 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:20:49,575 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:21:01,588 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:21:13,601 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:21:19,052 WARN L286 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 12 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:21:35,121 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:21:47,137 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-11-13 16:21:59,873 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:22:11,890 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)