./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c07e861b3e354f14684008a943ed22651d6c1651a7540e2374723db9ecfaa17 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:50:51,523 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:50:51,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 19:50:51,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:50:51,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:50:51,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:50:51,674 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:50:51,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:50:51,674 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:50:51,675 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:50:51,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:50:51,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:50:51,676 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:50:51,676 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:50:51,677 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:50:51,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:50:51,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:50:51,678 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:50:51,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:50:51,678 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:50:51,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:50:51,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:50:51,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:50:51,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:50:51,678 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:50:51,678 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:50:51,678 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:50:51,678 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:50:51,678 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:50:51,679 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:51,679 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:51,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:51,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:51,679 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:50:51,679 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:51,679 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:51,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:51,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:51,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:50:51,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:50:51,680 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:50:51,680 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:50:51,680 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:50:51,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:50:51,680 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:50:51,680 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:50:51,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:50:51,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:50:51,680 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_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c07e861b3e354f14684008a943ed22651d6c1651a7540e2374723db9ecfaa17 [2024-11-27 19:50:51,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:50:51,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:50:51,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:50:51,981 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:50:51,982 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:50:51,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c [2024-11-27 19:50:55,035 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/data/bef99d826/a74bedbc5e154ec4af6ab9c808ae96d8/FLAG1b5c4a62d [2024-11-27 19:50:55,575 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:50:55,579 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c [2024-11-27 19:50:55,605 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/data/bef99d826/a74bedbc5e154ec4af6ab9c808ae96d8/FLAG1b5c4a62d [2024-11-27 19:50:56,119 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/data/bef99d826/a74bedbc5e154ec4af6ab9c808ae96d8 [2024-11-27 19:50:56,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:50:56,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:50:56,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:56,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:50:56,131 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:50:56,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:56" (1/1) ... [2024-11-27 19:50:56,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b60b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:56, skipping insertion in model container [2024-11-27 19:50:56,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:56" (1/1) ... [2024-11-27 19:50:56,194 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:50:56,900 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_0e2a0369-52fe-4f6b-8994-83a98e939c10/sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c[59014,59027] [2024-11-27 19:50:56,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:56,954 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:50:57,302 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_0e2a0369-52fe-4f6b-8994-83a98e939c10/sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c[59014,59027] [2024-11-27 19:50:57,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:57,335 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:50:57,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57 WrapperNode [2024-11-27 19:50:57,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:57,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:57,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:50:57,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:50:57,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:57,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:58,006 INFO L138 Inliner]: procedures = 13, calls = 1043, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13260 [2024-11-27 19:50:58,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:58,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:50:58,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:50:58,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:50:58,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:58,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:58,126 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:58,482 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 19:50:58,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:58,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:58,910 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:58,931 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:59,077 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:59,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:59,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:59,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:50:59,291 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:50:59,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:50:59,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:50:59,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ... [2024-11-27 19:50:59,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:59,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:59,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:50:59,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:50:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:50:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:50:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:50:59,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:50:59,366 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-27 19:50:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-27 19:50:59,815 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:50:59,817 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:51:28,879 INFO L? ?]: Removed 2900 outVars from TransFormulas that were not future-live. [2024-11-27 19:51:28,879 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:51:28,994 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:51:28,994 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 19:51:28,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:28 BoogieIcfgContainer [2024-11-27 19:51:28,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:51:28,998 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:51:28,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:51:29,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:51:29,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:50:56" (1/3) ... [2024-11-27 19:51:29,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d91e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:29, skipping insertion in model container [2024-11-27 19:51:29,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (2/3) ... [2024-11-27 19:51:29,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d91e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:29, skipping insertion in model container [2024-11-27 19:51:29,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:28" (3/3) ... [2024-11-27 19:51:29,011 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-200-3-4-sat-2.c [2024-11-27 19:51:29,028 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:51:29,030 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-3-4-sat-2.c that has 2 procedures, 6086 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-27 19:51:29,237 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:51:29,249 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;@23e2c425, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:51:29,249 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:51:29,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 6086 states, 5047 states have (on average 1.5555775708341588) internal successors, (7851), 5048 states have internal predecessors, (7851), 1036 states have call successors, (1036), 1 states have call predecessors, (1036), 1 states have return successors, (1036), 1036 states have call predecessors, (1036), 1036 states have call successors, (1036) [2024-11-27 19:51:29,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7421 [2024-11-27 19:51:29,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:29,682 INFO L218 NwaCegarLoop]: trace histogram [1036, 1036, 1036, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:29,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:29,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:29,694 INFO L85 PathProgramCache]: Analyzing trace with hash -638829907, now seen corresponding path program 1 times [2024-11-27 19:51:29,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:29,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059434841] [2024-11-27 19:51:29,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:29,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:43,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2144520 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 2142450 trivial. 0 not checked. [2024-11-27 19:51:43,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:43,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059434841] [2024-11-27 19:51:43,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059434841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:43,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673854003] [2024-11-27 19:51:43,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:43,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:43,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:43,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:43,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:51:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:46,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 14589 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 19:51:46,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:46,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2144520 backedges. 2070 proven. 0 refuted. 0 times theorem prover too weak. 2142450 trivial. 0 not checked. [2024-11-27 19:51:46,700 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:46,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673854003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:46,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:51:46,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 19:51:46,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735806862] [2024-11-27 19:51:46,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:46,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:51:46,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:46,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:51:46,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:51:46,768 INFO L87 Difference]: Start difference. First operand has 6086 states, 5047 states have (on average 1.5555775708341588) internal successors, (7851), 5048 states have internal predecessors, (7851), 1036 states have call successors, (1036), 1 states have call predecessors, (1036), 1 states have return successors, (1036), 1036 states have call predecessors, (1036), 1036 states have call successors, (1036) Second operand has 2 states, 2 states have (on average 1122.5) internal successors, (2245), 2 states have internal predecessors, (2245), 2 states have call successors, (1036), 2 states have call predecessors, (1036), 1 states have return successors, (1036), 1 states have call predecessors, (1036), 2 states have call successors, (1036) [2024-11-27 19:51:47,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:47,284 INFO L93 Difference]: Finished difference Result 12166 states and 20876 transitions. [2024-11-27 19:51:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:51:47,291 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1122.5) internal successors, (2245), 2 states have internal predecessors, (2245), 2 states have call successors, (1036), 2 states have call predecessors, (1036), 1 states have return successors, (1036), 1 states have call predecessors, (1036), 2 states have call successors, (1036) Word has length 7420 [2024-11-27 19:51:47,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:47,347 INFO L225 Difference]: With dead ends: 12166 [2024-11-27 19:51:47,347 INFO L226 Difference]: Without dead ends: 6083 [2024-11-27 19:51:47,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7421 GetRequests, 7421 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:51:47,382 INFO L435 NwaCegarLoop]: 9919 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, 9919 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:47,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9919 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:47,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6083 states. [2024-11-27 19:51:48,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6083 to 6083. [2024-11-27 19:51:48,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6083 states, 5045 states have (on average 1.5554013875123884) internal successors, (7847), 5045 states have internal predecessors, (7847), 1036 states have call successors, (1036), 1 states have call predecessors, (1036), 1 states have return successors, (1036), 1036 states have call predecessors, (1036), 1036 states have call successors, (1036) [2024-11-27 19:51:48,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6083 states to 6083 states and 9919 transitions. [2024-11-27 19:51:48,460 INFO L78 Accepts]: Start accepts. Automaton has 6083 states and 9919 transitions. Word has length 7420 [2024-11-27 19:51:48,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:48,463 INFO L471 AbstractCegarLoop]: Abstraction has 6083 states and 9919 transitions. [2024-11-27 19:51:48,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1122.5) internal successors, (2245), 2 states have internal predecessors, (2245), 2 states have call successors, (1036), 2 states have call predecessors, (1036), 1 states have return successors, (1036), 1 states have call predecessors, (1036), 2 states have call successors, (1036) [2024-11-27 19:51:48,465 INFO L276 IsEmpty]: Start isEmpty. Operand 6083 states and 9919 transitions. [2024-11-27 19:51:48,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7421 [2024-11-27 19:51:48,932 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:48,934 INFO L218 NwaCegarLoop]: trace histogram [1036, 1036, 1036, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:48,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:51:49,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 19:51:49,136 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:49,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:49,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1572588319, now seen corresponding path program 1 times [2024-11-27 19:51:49,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:49,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424552681] [2024-11-27 19:51:49,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:49,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:01,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2144520 backedges. 5484 proven. 25296 refuted. 0 times theorem prover too weak. 2113740 trivial. 0 not checked. [2024-11-27 19:55:01,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:01,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424552681] [2024-11-27 19:55:01,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424552681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:55:01,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843544808] [2024-11-27 19:55:01,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:01,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:55:01,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:01,133 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:55:01,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:55:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:06,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 14589 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-27 19:55:06,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:56:16,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2144520 backedges. 348456 proven. 18012 refuted. 0 times theorem prover too weak. 1778052 trivial. 0 not checked. [2024-11-27 19:56:16,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:57:30,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2144520 backedges. 4476 proven. 20196 refuted. 0 times theorem prover too weak. 2119848 trivial. 0 not checked. [2024-11-27 19:57:30,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843544808] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:57:30,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:57:30,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 16, 16] total 44 [2024-11-27 19:57:30,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146806144] [2024-11-27 19:57:30,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:57:30,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-27 19:57:30,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:30,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-27 19:57:30,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1616, Unknown=0, NotChecked=0, Total=1892 [2024-11-27 19:57:30,445 INFO L87 Difference]: Start difference. First operand 6083 states and 9919 transitions. Second operand has 44 states, 29 states have (on average 215.0) internal successors, (6235), 32 states have internal predecessors, (6235), 37 states have call successors, (2860), 2 states have call predecessors, (2860), 3 states have return successors, (2862), 34 states have call predecessors, (2862), 37 states have call successors, (2862) [2024-11-27 19:59:45,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:59:45,639 INFO L93 Difference]: Finished difference Result 100614 states and 163913 transitions. [2024-11-27 19:59:45,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2024-11-27 19:59:45,645 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 29 states have (on average 215.0) internal successors, (6235), 32 states have internal predecessors, (6235), 37 states have call successors, (2860), 2 states have call predecessors, (2860), 3 states have return successors, (2862), 34 states have call predecessors, (2862), 37 states have call successors, (2862) Word has length 7420 [2024-11-27 19:59:45,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:59:46,306 INFO L225 Difference]: With dead ends: 100614 [2024-11-27 19:59:46,306 INFO L226 Difference]: Without dead ends: 95558 [2024-11-27 19:59:46,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14983 GetRequests, 14837 SyntacticMatches, 9 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5159 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=5687, Invalid=13495, Unknown=0, NotChecked=0, Total=19182 [2024-11-27 19:59:46,354 INFO L435 NwaCegarLoop]: 32701 mSDtfsCounter, 376857 mSDsluCounter, 339853 mSDsCounter, 0 mSdLazyCounter, 56202 mSolverCounterSat, 27911 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376884 SdHoareTripleChecker+Valid, 372554 SdHoareTripleChecker+Invalid, 84113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.5s SdHoareTripleChecker+Time, 27911 IncrementalHoareTripleChecker+Valid, 56202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:59:46,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [376884 Valid, 372554 Invalid, 84113 Unknown, 0 Unchecked, 1.5s Time], IncrementalHoareTripleChecker [27911 Valid, 56202 Invalid, 0 Unknown, 0 Unchecked, 93.1s Time] [2024-11-27 19:59:46,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95558 states. [2024-11-27 20:00:03,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95558 to 81230. [2024-11-27 20:00:04,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81230 states, 71303 states have (on average 1.5749547704865152) internal successors, (112299), 71303 states have internal predecessors, (112299), 9925 states have call successors, (9925), 1 states have call predecessors, (9925), 1 states have return successors, (9925), 9925 states have call predecessors, (9925), 9925 states have call successors, (9925) [2024-11-27 20:00:04,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81230 states to 81230 states and 132149 transitions. [2024-11-27 20:00:04,665 INFO L78 Accepts]: Start accepts. Automaton has 81230 states and 132149 transitions. Word has length 7420 [2024-11-27 20:00:04,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:00:04,703 INFO L471 AbstractCegarLoop]: Abstraction has 81230 states and 132149 transitions. [2024-11-27 20:00:04,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 29 states have (on average 215.0) internal successors, (6235), 32 states have internal predecessors, (6235), 37 states have call successors, (2860), 2 states have call predecessors, (2860), 3 states have return successors, (2862), 34 states have call predecessors, (2862), 37 states have call successors, (2862) [2024-11-27 20:00:04,714 INFO L276 IsEmpty]: Start isEmpty. Operand 81230 states and 132149 transitions. [2024-11-27 20:00:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7423 [2024-11-27 20:00:07,218 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:00:07,225 INFO L218 NwaCegarLoop]: trace histogram [1036, 1036, 1036, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:00:07,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:00:07,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:00:07,433 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:00:07,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:00:07,442 INFO L85 PathProgramCache]: Analyzing trace with hash -882363843, now seen corresponding path program 1 times [2024-11-27 20:00:07,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:00:07,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142441566] [2024-11-27 20:00:07,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:00:07,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:00:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:00:57,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2144520 backedges. 972 proven. 5232 refuted. 0 times theorem prover too weak. 2138316 trivial. 0 not checked. [2024-11-27 20:00:57,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:00:57,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142441566] [2024-11-27 20:00:57,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142441566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:00:57,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686424665] [2024-11-27 20:00:57,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:00:57,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:00:57,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:00:57,640 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:00:57,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:01:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:01:01,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 14595 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:01:01,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:01:16,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2144520 backedges. 39324 proven. 9924 refuted. 0 times theorem prover too weak. 2095272 trivial. 0 not checked. [2024-11-27 20:01:16,046 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:01:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2144520 backedges. 2352 proven. 10032 refuted. 0 times theorem prover too weak. 2132136 trivial. 0 not checked. [2024-11-27 20:01:44,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686424665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:01:44,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:01:44,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 18 [2024-11-27 20:01:44,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427164272] [2024-11-27 20:01:44,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:01:44,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:01:44,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:01:44,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:01:44,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:01:44,278 INFO L87 Difference]: Start difference. First operand 81230 states and 132149 transitions. Second operand has 18 states, 14 states have (on average 353.85714285714283) internal successors, (4954), 14 states have internal predecessors, (4954), 13 states have call successors, (2261), 2 states have call predecessors, (2261), 3 states have return successors, (2263), 13 states have call predecessors, (2263), 13 states have call successors, (2263) [2024-11-27 20:02:40,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:02:40,154 INFO L93 Difference]: Finished difference Result 711617 states and 1158105 transitions. [2024-11-27 20:02:40,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-27 20:02:40,157 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 353.85714285714283) internal successors, (4954), 14 states have internal predecessors, (4954), 13 states have call successors, (2261), 2 states have call predecessors, (2261), 3 states have return successors, (2263), 13 states have call predecessors, (2263), 13 states have call successors, (2263) Word has length 7422 [2024-11-27 20:02:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:02:42,581 INFO L225 Difference]: With dead ends: 711617 [2024-11-27 20:02:42,581 INFO L226 Difference]: Without dead ends: 605395 [2024-11-27 20:02:43,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14874 GetRequests, 14834 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=362, Invalid=970, Unknown=0, NotChecked=0, Total=1332 [2024-11-27 20:02:43,028 INFO L435 NwaCegarLoop]: 23116 mSDtfsCounter, 140124 mSDsluCounter, 105477 mSDsCounter, 0 mSdLazyCounter, 18695 mSolverCounterSat, 9034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140130 SdHoareTripleChecker+Valid, 128593 SdHoareTripleChecker+Invalid, 27729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 9034 IncrementalHoareTripleChecker+Valid, 18695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:02:43,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140130 Valid, 128593 Invalid, 27729 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [9034 Valid, 18695 Invalid, 0 Unknown, 0 Unchecked, 23.6s Time]