./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
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_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1 --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 64bit --witnessprinter.graph.data.programhash 54eceae7382bc15f3f6868c637e60b7eb166af5d1c4b040a6f157b03b87c995c
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 06:52:06,454 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 06:52:06,510 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-02 06:52:06,515 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 06:52:06,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 06:52:06,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 06:52:06,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 06:52:06,537 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 06:52:06,537 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 06:52:06,537 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 06:52:06,537 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 06:52:06,537 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 06:52:06,538 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 06:52:06,538 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 06:52:06,538 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 06:52:06,538 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 06:52:06,538 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 06:52:06,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 06:52:06,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 06:52:06,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 06:52:06,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 06:52:06,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 06:52:06,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 06:52:06,539 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 06:52:06,539 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 06:52:06,539 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 06:52:06,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:52:06,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:52:06,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:52:06,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:52:06,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 06:52:06,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:52:06,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:52:06,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:52:06,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:52:06,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 06:52:06,540 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 06:52:06,540 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 06:52:06,540 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 06:52:06,540 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 06:52:06,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 06:52:06,540 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 06:52:06,540 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 06:52:06,540 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 06:52:06,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 06:52:06,540 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_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1
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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54eceae7382bc15f3f6868c637e60b7eb166af5d1c4b040a6f157b03b87c995c
[2024-12-02 06:52:06,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 06:52:06,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 06:52:06,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 06:52:06,795 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 06:52:06,795 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 06:52:06,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c
[2024-12-02 06:52:09,427 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/data/ad32c7312/bcf460f7e543437b9bac7d7040ad81a4/FLAG1b4cfcf37
[2024-12-02 06:52:09,656 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 06:52:09,657 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c
[2024-12-02 06:52:09,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/data/ad32c7312/bcf460f7e543437b9bac7d7040ad81a4/FLAG1b4cfcf37
[2024-12-02 06:52:09,681 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/data/ad32c7312/bcf460f7e543437b9bac7d7040ad81a4
[2024-12-02 06:52:09,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 06:52:09,685 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 06:52:09,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 06:52:09,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 06:52:09,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 06:52:09,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:09,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678ef28b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09, skipping insertion in model container
[2024-12-02 06:52:09,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:09,710 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 06:52:09,842 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_93525b26-74f3-43a3-abe3-4e1dcc48fd01/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c[1263,1276]
[2024-12-02 06:52:09,900 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:52:09,907 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 06:52:09,914 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_93525b26-74f3-43a3-abe3-4e1dcc48fd01/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c[1263,1276]
[2024-12-02 06:52:09,951 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:52:09,964 INFO L204 MainTranslator]: Completed translation
[2024-12-02 06:52:09,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09 WrapperNode
[2024-12-02 06:52:09,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 06:52:09,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 06:52:09,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 06:52:09,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 06:52:09,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:09,980 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:10,018 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 277
[2024-12-02 06:52:10,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 06:52:10,018 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 06:52:10,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 06:52:10,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 06:52:10,025 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:10,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:10,031 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:10,050 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].
[2024-12-02 06:52:10,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:10,050 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:10,061 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:10,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:10,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:10,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:10,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:10,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 06:52:10,081 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 06:52:10,081 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 06:52:10,081 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 06:52:10,082 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (1/1) ...
[2024-12-02 06:52:10,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:52:10,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:52:10,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 06:52:10,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 06:52:10,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 06:52:10,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 06:52:10,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 06:52:10,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 06:52:10,212 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 06:52:10,214 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 06:52:10,582 INFO L? ?]: Removed 176 outVars from TransFormulas that were not future-live.
[2024-12-02 06:52:10,582 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 06:52:10,591 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 06:52:10,591 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 06:52:10,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:10 BoogieIcfgContainer
[2024-12-02 06:52:10,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 06:52:10,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 06:52:10,594 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 06:52:10,597 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 06:52:10,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:52:09" (1/3) ...
[2024-12-02 06:52:10,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44853871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:10, skipping insertion in model container
[2024-12-02 06:52:10,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:09" (2/3) ...
[2024-12-02 06:52:10,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44853871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:10, skipping insertion in model container
[2024-12-02 06:52:10,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:10" (3/3) ...
[2024-12-02 06:52:10,599 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_traffic_light_example.c
[2024-12-02 06:52:10,611 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 06:52:10,613 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_traffic_light_example.c that has 1 procedures, 54 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 06:52:10,660 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 06:52:10,672 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;@38960f32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 06:52:10,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 06:52:10,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 53 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:10,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-12-02 06:52:10,681 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:52:10,681 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:52:10,682 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:52:10,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:52:10,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1332240297, now seen corresponding path program 1 times
[2024-12-02 06:52:10,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:52:10,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283260926]
[2024-12-02 06:52:10,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:52:10,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:52:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:52:11,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:52:11,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:52:11,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283260926]
[2024-12-02 06:52:11,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283260926] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:52:11,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:52:11,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:52:11,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870828822]
[2024-12-02 06:52:11,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:52:11,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:52:11,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:52:11,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:52:11,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:52:11,078 INFO L87 Difference]: Start difference. First operand has 54 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 53 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:11,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:52:11,119 INFO L93 Difference]: Finished difference Result 97 states and 141 transitions.
[2024-12-02 06:52:11,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:52:11,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2024-12-02 06:52:11,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:52:11,127 INFO L225 Difference]: With dead ends: 97
[2024-12-02 06:52:11,128 INFO L226 Difference]: Without dead ends: 53
[2024-12-02 06:52:11,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:52:11,132 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:52:11,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 207 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 06:52:11,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-12-02 06:52:11,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2024-12-02 06:52:11,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 52 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:11,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions.
[2024-12-02 06:52:11,158 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 15
[2024-12-02 06:52:11,158 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:52:11,158 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions.
[2024-12-02 06:52:11,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:11,159 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions.
[2024-12-02 06:52:11,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-12-02 06:52:11,159 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:52:11,159 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:52:11,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 06:52:11,160 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:52:11,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:52:11,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1648528535, now seen corresponding path program 1 times
[2024-12-02 06:52:11,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:52:11,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279074777]
[2024-12-02 06:52:11,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:52:11,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:52:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:52:11,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:52:11,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:52:11,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279074777]
[2024-12-02 06:52:11,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279074777] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:52:11,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:52:11,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:52:11,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266954350]
[2024-12-02 06:52:11,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:52:11,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:52:11,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:52:11,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:52:11,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:52:11,283 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:11,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:52:11,314 INFO L93 Difference]: Finished difference Result 98 states and 139 transitions.
[2024-12-02 06:52:11,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:52:11,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2024-12-02 06:52:11,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:52:11,316 INFO L225 Difference]: With dead ends: 98
[2024-12-02 06:52:11,316 INFO L226 Difference]: Without dead ends: 55
[2024-12-02 06:52:11,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:52:11,317 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:52:11,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 203 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 06:52:11,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2024-12-02 06:52:11,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2024-12-02 06:52:11,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 54 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:11,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 77 transitions.
[2024-12-02 06:52:11,320 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 77 transitions. Word has length 16
[2024-12-02 06:52:11,320 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:52:11,320 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 77 transitions.
[2024-12-02 06:52:11,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:11,320 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 77 transitions.
[2024-12-02 06:52:11,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-12-02 06:52:11,321 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:52:11,321 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:52:11,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 06:52:11,321 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:52:11,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:52:11,322 INFO L85 PathProgramCache]: Analyzing trace with hash -662742910, now seen corresponding path program 1 times
[2024-12-02 06:52:11,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:52:11,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905470380]
[2024-12-02 06:52:11,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:52:11,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:52:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:52:11,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:52:11,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:52:11,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905470380]
[2024-12-02 06:52:11,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905470380] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:52:11,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:52:11,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:52:11,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795786136]
[2024-12-02 06:52:11,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:52:11,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:52:11,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:52:11,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:52:11,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:52:11,488 INFO L87 Difference]: Start difference. First operand 55 states and 77 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:11,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:52:11,526 INFO L93 Difference]: Finished difference Result 98 states and 138 transitions.
[2024-12-02 06:52:11,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:52:11,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2024-12-02 06:52:11,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:52:11,527 INFO L225 Difference]: With dead ends: 98
[2024-12-02 06:52:11,527 INFO L226 Difference]: Without dead ends: 53
[2024-12-02 06:52:11,528 INFO L434 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
[2024-12-02 06:52:11,528 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 64 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:52:11,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 133 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 06:52:11,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-12-02 06:52:11,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2024-12-02 06:52:11,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:11,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 73 transitions.
[2024-12-02 06:52:11,534 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 73 transitions. Word has length 17
[2024-12-02 06:52:11,534 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:52:11,535 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 73 transitions.
[2024-12-02 06:52:11,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:11,535 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions.
[2024-12-02 06:52:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-12-02 06:52:11,536 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:52:11,536 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:52:11,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 06:52:11,536 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:52:11,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:52:11,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1800615860, now seen corresponding path program 1 times
[2024-12-02 06:52:11,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:52:11,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369575243]
[2024-12-02 06:52:11,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:52:11,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:52:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 06:52:11,563 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 06:52:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 06:52:11,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 06:52:11,598 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 06:52:11,599 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-12-02 06:52:11,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 06:52:11,603 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-12-02 06:52:11,624 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 06:52:11,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:52:11 BoogieIcfgContainer
[2024-12-02 06:52:11,627 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 06:52:11,627 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 06:52:11,628 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 06:52:11,628 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 06:52:11,628 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:10" (3/4) ...
[2024-12-02 06:52:11,630 INFO L149 WitnessPrinter]: No result that supports witness generation found
[2024-12-02 06:52:11,631 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 06:52:11,631 INFO L158 Benchmark]: Toolchain (without parser) took 1946.88ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 69.6MB in the end (delta: 49.1MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB.
[2024-12-02 06:52:11,632 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 06:52:11,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.36ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 102.9MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 06:52:11,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.48ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 97.3MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 06:52:11,632 INFO L158 Benchmark]: Boogie Preprocessor took 61.55ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 92.8MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 06:52:11,633 INFO L158 Benchmark]: RCFGBuilder took 511.28ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 109.0MB in the end (delta: -16.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
[2024-12-02 06:52:11,633 INFO L158 Benchmark]: TraceAbstraction took 1033.48ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 69.6MB in the end (delta: 38.8MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB.
[2024-12-02 06:52:11,633 INFO L158 Benchmark]: Witness Printer took 3.16ms. Allocated memory is still 142.6MB. Free memory was 69.6MB in the beginning and 69.6MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 06:52:11,635 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 279.36ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 102.9MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 52.48ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 97.3MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 61.55ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 92.8MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 511.28ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 109.0MB in the end (delta: -16.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 1033.48ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 69.6MB in the end (delta: 38.8MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB.
* Witness Printer took 3.16ms. Allocated memory is still 142.6MB. Free memory was 69.6MB in the beginning and 69.6MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: overapproximation of bitwiseAnd at line 75.
Possible FailurePath:
[L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1);
[L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1);
[L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 8);
[L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (8 - 1);
[L32] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 2);
[L33] const SORT_16 msb_SORT_16 = (SORT_16)1 << (2 - 1);
[L35] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 32);
[L36] const SORT_44 msb_SORT_44 = (SORT_44)1 << (32 - 1);
[L38] const SORT_4 var_5 = 0;
[L39] const SORT_4 var_8 = 255;
[L40] const SORT_1 var_12 = 1;
[L41] const SORT_16 var_17 = 0;
[L42] const SORT_4 var_21 = 1;
[L43] const SORT_4 var_23 = 63;
[L44] const SORT_4 var_29 = 7;
[L45] const SORT_16 var_35 = 2;
[L46] const SORT_16 var_38 = 1;
[L47] const SORT_44 var_45 = 0;
[L48] const SORT_44 var_46 = 1;
[L49] const SORT_44 var_52 = 2;
[L51] SORT_1 input_2;
[L52] SORT_1 input_3;
[L54] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4
VAL [mask_SORT_16=3, mask_SORT_1=1, mask_SORT_4=255, var_12=1, var_17=0, var_21=1, var_23=63, var_29=7, var_35=2, var_38=1, var_45=0, var_46=1, var_52=2, var_5=0, var_8=255]
[L54] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4;
[L55] EXPR __VERIFIER_nondet_uchar() & mask_SORT_16
VAL [mask_SORT_16=3, mask_SORT_1=1, mask_SORT_4=255, var_12=1, var_17=0, var_21=1, var_23=63, var_29=7, var_35=2, var_38=1, var_45=0, var_46=1, var_52=2, var_5=0, var_8=255]
[L55] SORT_16 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_16;
[L57] SORT_4 init_7_arg_1 = var_5;
[L58] state_6 = init_7_arg_1
[L59] SORT_16 init_19_arg_1 = var_17;
[L60] state_18 = init_19_arg_1
VAL [mask_SORT_16=3, mask_SORT_1=1, mask_SORT_4=255, state_18=0, state_6=0, var_12=1, var_17=0, var_21=1, var_23=63, var_29=7, var_35=2, var_38=1, var_45=0, var_46=1, var_52=2, var_5=0, var_8=255]
[L63] input_2 = __VERIFIER_nondet_uchar()
[L64] input_3 = __VERIFIER_nondet_uchar()
[L65] EXPR input_3 & mask_SORT_1
VAL [mask_SORT_16=3, mask_SORT_1=1, mask_SORT_4=255, state_18=0, state_6=0, var_12=1, var_17=0, var_21=1, var_23=63, var_29=7, var_35=2, var_38=1, var_45=0, var_46=1, var_52=2, var_5=0, var_8=255]
[L65] input_3 = input_3 & mask_SORT_1
[L68] SORT_4 var_9_arg_0 = state_6;
[L69] SORT_4 var_9_arg_1 = var_8;
[L70] SORT_1 var_9 = var_9_arg_0 != var_9_arg_1;
[L71] SORT_1 var_13_arg_0 = var_9;
[L72] SORT_1 var_13 = ~var_13_arg_0;
[L73] SORT_1 var_14_arg_0 = var_12;
[L74] SORT_1 var_14_arg_1 = var_13;
VAL [input_3=0, mask_SORT_16=3, mask_SORT_1=1, mask_SORT_4=255, state_18=0, state_6=0, var_12=1, var_14_arg_0=1, var_14_arg_1=-2, var_17=0, var_21=1, var_23=63, var_29=7, var_35=2, var_38=1, var_45=0, var_46=1, var_52=2, var_5=0, var_8=255]
[L75] EXPR var_14_arg_0 & var_14_arg_1
VAL [input_3=0, mask_SORT_16=3, mask_SORT_1=1, mask_SORT_4=255, state_18=0, state_6=0, var_12=1, var_17=0, var_21=1, var_23=63, var_29=7, var_35=2, var_38=1, var_45=0, var_46=1, var_52=2, var_5=0, var_8=255]
[L75] SORT_1 var_14 = var_14_arg_0 & var_14_arg_1;
[L76] EXPR var_14 & mask_SORT_1
VAL [input_3=0, mask_SORT_16=3, mask_SORT_1=1, mask_SORT_4=255, state_18=0, state_6=0, var_12=1, var_17=0, var_21=1, var_23=63, var_29=7, var_35=2, var_38=1, var_45=0, var_46=1, var_52=2, var_5=0, var_8=255]
[L76] var_14 = var_14 & mask_SORT_1
[L77] SORT_1 bad_15_arg_0 = var_14;
[L78] CALL __VERIFIER_assert(!(bad_15_arg_0))
[L21] COND TRUE !(cond)
[L21] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 543 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 334 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 209 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-12-02 06:52:11,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1 --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 64bit --witnessprinter.graph.data.programhash 54eceae7382bc15f3f6868c637e60b7eb166af5d1c4b040a6f157b03b87c995c
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 06:52:13,575 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 06:52:13,651 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2024-12-02 06:52:13,656 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 06:52:13,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 06:52:13,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 06:52:13,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 06:52:13,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 06:52:13,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 06:52:13,678 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 06:52:13,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 06:52:13,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 06:52:13,678 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 06:52:13,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 06:52:13,678 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 06:52:13,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 06:52:13,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 06:52:13,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 06:52:13,679 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 06:52:13,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 06:52:13,679 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 06:52:13,679 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-12-02 06:52:13,679 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-12-02 06:52:13,679 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-12-02 06:52:13,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 06:52:13,679 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 06:52:13,679 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 06:52:13,680 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 06:52:13,680 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:52:13,680 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:52:13,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:52:13,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:52:13,680 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 06:52:13,680 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:52:13,680 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:52:13,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:52:13,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:52:13,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 06:52:13,681 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 06:52:13,681 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 06:52:13,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 06:52:13,681 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-12-02 06:52:13,681 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-12-02 06:52:13,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 06:52:13,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 06:52:13,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 06:52:13,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 06:52:13,681 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_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1
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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54eceae7382bc15f3f6868c637e60b7eb166af5d1c4b040a6f157b03b87c995c
[2024-12-02 06:52:13,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 06:52:13,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 06:52:13,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 06:52:13,920 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 06:52:13,920 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 06:52:13,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c
[2024-12-02 06:52:16,680 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/data/a8e8b80ed/f20c7bba95f4447897503728809742d5/FLAG6c20164a4
[2024-12-02 06:52:16,880 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 06:52:16,881 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c
[2024-12-02 06:52:16,888 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/data/a8e8b80ed/f20c7bba95f4447897503728809742d5/FLAG6c20164a4
[2024-12-02 06:52:17,248 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/data/a8e8b80ed/f20c7bba95f4447897503728809742d5
[2024-12-02 06:52:17,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 06:52:17,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 06:52:17,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 06:52:17,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 06:52:17,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 06:52:17,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@338f49af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17, skipping insertion in model container
[2024-12-02 06:52:17,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,277 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 06:52:17,392 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_93525b26-74f3-43a3-abe3-4e1dcc48fd01/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c[1263,1276]
[2024-12-02 06:52:17,448 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:52:17,457 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 06:52:17,464 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_93525b26-74f3-43a3-abe3-4e1dcc48fd01/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_traffic_light_example.c[1263,1276]
[2024-12-02 06:52:17,499 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:52:17,511 INFO L204 MainTranslator]: Completed translation
[2024-12-02 06:52:17,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17 WrapperNode
[2024-12-02 06:52:17,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 06:52:17,512 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 06:52:17,512 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 06:52:17,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 06:52:17,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,547 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 189
[2024-12-02 06:52:17,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 06:52:17,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 06:52:17,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 06:52:17,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 06:52:17,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,570 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].
[2024-12-02 06:52:17,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,578 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 06:52:17,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 06:52:17,588 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 06:52:17,588 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 06:52:17,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (1/1) ...
[2024-12-02 06:52:17,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:52:17,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:52:17,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 06:52:17,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 06:52:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 06:52:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-12-02 06:52:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 06:52:17,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 06:52:17,717 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 06:52:17,718 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 06:52:17,921 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-12-02 06:52:17,921 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 06:52:17,929 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 06:52:17,929 INFO L312 CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 06:52:17,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:17 BoogieIcfgContainer
[2024-12-02 06:52:17,930 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 06:52:17,932 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 06:52:17,933 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 06:52:17,938 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 06:52:17,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:52:17" (1/3) ...
[2024-12-02 06:52:17,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6915672c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:17, skipping insertion in model container
[2024-12-02 06:52:17,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:17" (2/3) ...
[2024-12-02 06:52:17,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6915672c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:17, skipping insertion in model container
[2024-12-02 06:52:17,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:17" (3/3) ...
[2024-12-02 06:52:17,941 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_traffic_light_example.c
[2024-12-02 06:52:17,956 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 06:52:17,958 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_traffic_light_example.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 06:52:17,996 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 06:52:18,004 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;@63f47ad7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 06:52:18,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 06:52:18,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:18,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-12-02 06:52:18,011 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:52:18,011 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-12-02 06:52:18,012 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:52:18,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:52:18,016 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times
[2024-12-02 06:52:18,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:52:18,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [531765947]
[2024-12-02 06:52:18,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:52:18,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:52:18,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:52:18,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:52:18,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 06:52:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:52:18,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-12-02 06:52:18,135 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:52:18,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:52:18,301 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:52:18,301 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:52:18,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531765947]
[2024-12-02 06:52:18,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531765947] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:52:18,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:52:18,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 06:52:18,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181495499]
[2024-12-02 06:52:18,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:52:18,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 06:52:18,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:52:18,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 06:52:18,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 06:52:18,322 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:18,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:52:18,368 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions.
[2024-12-02 06:52:18,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 06:52:18,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2024-12-02 06:52:18,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:52:18,376 INFO L225 Difference]: With dead ends: 18
[2024-12-02 06:52:18,376 INFO L226 Difference]: Without dead ends: 10
[2024-12-02 06:52:18,378 INFO L434 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
[2024-12-02 06:52:18,381 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:52:18,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 06:52:18,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states.
[2024-12-02 06:52:18,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9.
[2024-12-02 06:52:18,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:18,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2024-12-02 06:52:18,403 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5
[2024-12-02 06:52:18,403 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:52:18,403 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2024-12-02 06:52:18,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:52:18,403 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2024-12-02 06:52:18,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-12-02 06:52:18,404 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:52:18,404 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:52:18,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 06:52:18,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:52:18,604 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:52:18,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:52:18,605 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times
[2024-12-02 06:52:18,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:52:18,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951779818]
[2024-12-02 06:52:18,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:52:18,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:52:18,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:52:18,608 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:52:18,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 06:52:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:52:18,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-12-02 06:52:18,705 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:52:19,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:52:19,874 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:53:09,195 WARN L286 SmtUtils]: Spent 28.01s on a formula simplification that was a NOOP. DAG size: 284 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 06:54:07,257 WARN L286 SmtUtils]: Spent 28.47s on a formula simplification that was a NOOP. DAG size: 288 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 06:54:35,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 06:54:35,642 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:54:35,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951779818]
[2024-12-02 06:54:35,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951779818] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 06:54:35,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:54:35,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2024-12-02 06:54:35,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298898233]
[2024-12-02 06:54:35,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:54:35,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 06:54:35,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-12-02 06:54:35,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 06:54:35,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=58, Unknown=2, NotChecked=0, Total=90
[2024-12-02 06:54:35,645 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:54:37,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:54:37,769 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions.
[2024-12-02 06:54:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 06:54:37,770 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2024-12-02 06:54:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:54:37,770 INFO L225 Difference]: With dead ends: 15
[2024-12-02 06:54:37,770 INFO L226 Difference]: Without dead ends: 13
[2024-12-02 06:54:37,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 75.7s TimeCoverageRelationStatistics Valid=47, Invalid=83, Unknown=2, NotChecked=0, Total=132
[2024-12-02 06:54:37,771 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-12-02 06:54:37,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-12-02 06:54:37,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2024-12-02 06:54:37,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12.
[2024-12-02 06:54:37,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:54:37,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions.
[2024-12-02 06:54:37,775 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8
[2024-12-02 06:54:37,775 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:54:37,775 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions.
[2024-12-02 06:54:37,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 06:54:37,775 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions.
[2024-12-02 06:54:37,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-12-02 06:54:37,776 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:54:37,776 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2024-12-02 06:54:37,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-12-02 06:54:37,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:54:37,976 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:54:37,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:54:37,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times
[2024-12-02 06:54:37,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-12-02 06:54:37,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884866067]
[2024-12-02 06:54:37,978 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 06:54:37,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:54:37,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:54:37,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:54:37,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 06:54:38,079 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 06:54:38,079 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 06:54:38,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 31 conjuncts are in the unsatisfiable core
[2024-12-02 06:54:38,086 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:54:55,274 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-12-02 06:54:55,274 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:55:35,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101
[2024-12-02 06:55:35,748 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2024-12-02 06:55:35,749 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-12-02 06:55:35,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884866067]
[2024-12-02 06:55:35,749 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception
[2024-12-02 06:55:35,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 06:55:35,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:55:35,950 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.<init>(PredicateUnifier.java:786)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:555)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:160)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:140)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701)
at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258)
... 45 more
[2024-12-02 06:55:35,954 INFO L158 Benchmark]: Toolchain (without parser) took 198702.88ms. Allocated memory was 92.3MB in the beginning and 536.9MB in the end (delta: 444.6MB). Free memory was 69.4MB in the beginning and 468.1MB in the end (delta: -398.7MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB.
[2024-12-02 06:55:35,955 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 06:55:35,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.73ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 53.9MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 06:55:35,955 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.97ms. Allocated memory is still 92.3MB. Free memory was 53.9MB in the beginning and 51.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 06:55:35,955 INFO L158 Benchmark]: Boogie Preprocessor took 38.78ms. Allocated memory is still 92.3MB. Free memory was 51.8MB in the beginning and 49.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 06:55:35,956 INFO L158 Benchmark]: RCFGBuilder took 342.27ms. Allocated memory is still 92.3MB. Free memory was 49.2MB in the beginning and 55.3MB in the end (delta: -6.0MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB.
[2024-12-02 06:55:35,956 INFO L158 Benchmark]: TraceAbstraction took 198021.18ms. Allocated memory was 92.3MB in the beginning and 536.9MB in the end (delta: 444.6MB). Free memory was 55.0MB in the beginning and 468.1MB in the end (delta: -413.1MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB.
[2024-12-02 06:55:35,958 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 258.73ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 53.9MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 35.97ms. Allocated memory is still 92.3MB. Free memory was 53.9MB in the beginning and 51.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 38.78ms. Allocated memory is still 92.3MB. Free memory was 51.8MB in the beginning and 49.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 342.27ms. Allocated memory is still 92.3MB. Free memory was 49.2MB in the beginning and 55.3MB in the end (delta: -6.0MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 198021.18ms. Allocated memory was 92.3MB in the beginning and 536.9MB in the end (delta: 444.6MB). Free memory was 55.0MB in the beginning and 468.1MB in the end (delta: -413.1MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93525b26-74f3-43a3-abe3-4e1dcc48fd01/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")