./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound10.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 879a640f466eee273c1bfb9ec38819f0b05c8e28dd65a68aba774d943b257ad3
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 18:23:09,998 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:23:10,101 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 18:23:10,109 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:23:10,110 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:23:10,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:23:10,143 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:23:10,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:23:10,144 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:23:10,145 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 18:23:10,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:23:10,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:23:10,146 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:23:10,147 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 18:23:10,147 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 18:23:10,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:23:10,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 18:23:10,149 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 18:23:10,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 18:23:10,149 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 18:23:10,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 18:23:10,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 18:23:10,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:23:10,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 18:23:10,152 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 18:23:10,152 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 18:23:10,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 18:23:10,153 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 18:23:10,153 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:23:10,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 18:23:10,154 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 18:23:10,154 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 18:23:10,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:23:10,155 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:23:10,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:23:10,156 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 18:23:10,156 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 18:23:10,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 18:23:10,157 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:23:10,157 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:23:10,157 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:23:10,158 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:23:10,158 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 879a640f466eee273c1bfb9ec38819f0b05c8e28dd65a68aba774d943b257ad3
[2024-11-08 18:23:10,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:23:10,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:23:10,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:23:10,493 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 18:23:10,494 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 18:23:10,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound10.c
Unable to find full path for "g++"
[2024-11-08 18:23:12,605 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:23:12,840 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 18:23:12,841 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound10.c
[2024-11-08 18:23:12,850 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/data/a01b9b90f/0b780707af884e249c8b9d2119f58fb2/FLAG84269bacc
[2024-11-08 18:23:13,185 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/data/a01b9b90f/0b780707af884e249c8b9d2119f58fb2
[2024-11-08 18:23:13,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:23:13,189 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:23:13,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:23:13,191 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:23:13,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:23:13,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75255d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13, skipping insertion in model container
[2024-11-08 18:23:13,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,222 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:23:13,453 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_107a684a-8b3d-4076-a02e-5da73c3cc723/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound10.c[524,537]
[2024-11-08 18:23:13,477 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:23:13,490 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 18:23:13,506 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_107a684a-8b3d-4076-a02e-5da73c3cc723/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound10.c[524,537]
[2024-11-08 18:23:13,526 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:23:13,556 INFO L204 MainTranslator]: Completed translation
[2024-11-08 18:23:13,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13 WrapperNode
[2024-11-08 18:23:13,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:23:13,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:23:13,559 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:23:13,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:23:13,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,597 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53
[2024-11-08 18:23:13,598 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:23:13,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:23:13,599 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:23:13,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:23:13,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,619 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,644 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-08 18:23:13,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,651 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,665 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:23:13,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:23:13,667 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:23:13,668 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:23:13,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (1/1) ...
[2024-11-08 18:23:13,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:23:13,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:23:13,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 18:23:13,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:23:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:23:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-08 18:23:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-08 18:23:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 18:23:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:23:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:23:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-08 18:23:13,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-08 18:23:13,822 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 18:23:13,825 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:23:14,045 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live.
[2024-11-08 18:23:14,045 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 18:23:14,058 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:23:14,059 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 18:23:14,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:23:14 BoogieIcfgContainer
[2024-11-08 18:23:14,060 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:23:14,063 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:23:14,063 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:23:14,067 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:23:14,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:23:13" (1/3) ...
[2024-11-08 18:23:14,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a11175e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:23:14, skipping insertion in model container
[2024-11-08 18:23:14,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:13" (2/3) ...
[2024-11-08 18:23:14,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a11175e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:23:14, skipping insertion in model container
[2024-11-08 18:23:14,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:23:14" (3/3) ...
[2024-11-08 18:23:14,071 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound10.c
[2024-11-08 18:23:14,096 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:23:14,097 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 18:23:14,162 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:23:14,169 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;@4c9bc1a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:23:14,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 18:23:14,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 18:23:14,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 18:23:14,183 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:23:14,183 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:23:14,184 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:23:14,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:23:14,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2119748232, now seen corresponding path program 1 times
[2024-11-08 18:23:14,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:23:14,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135481093]
[2024-11-08 18:23:14,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:23:14,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:23:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:23:14,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 18:23:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:23:14,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2024-11-08 18:23:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:23:14,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 18:23:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:23:14,404 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-08 18:23:14,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:23:14,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135481093]
[2024-11-08 18:23:14,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135481093] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:23:14,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:23:14,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:23:14,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630442146]
[2024-11-08 18:23:14,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:23:14,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 18:23:14,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:23:14,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 18:23:14,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 18:23:14,441 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 18:23:14,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:23:14,461 INFO L93 Difference]: Finished difference Result 55 states and 82 transitions.
[2024-11-08 18:23:14,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 18:23:14,463 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24
[2024-11-08 18:23:14,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:23:14,472 INFO L225 Difference]: With dead ends: 55
[2024-11-08 18:23:14,472 INFO L226 Difference]: Without dead ends: 25
[2024-11-08 18:23:14,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 18:23:14,480 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:23:14,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:23:14,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2024-11-08 18:23:14,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2024-11-08 18:23:14,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-08 18:23:14,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions.
[2024-11-08 18:23:14,522 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 24
[2024-11-08 18:23:14,523 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:23:14,523 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions.
[2024-11-08 18:23:14,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 18:23:14,524 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions.
[2024-11-08 18:23:14,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-08 18:23:14,525 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:23:14,525 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:23:14,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 18:23:14,526 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:23:14,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:23:14,527 INFO L85 PathProgramCache]: Analyzing trace with hash 948816816, now seen corresponding path program 1 times
[2024-11-08 18:23:14,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:23:14,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805590473]
[2024-11-08 18:23:14,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:23:14,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:23:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-08 18:23:14,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120603693]
[2024-11-08 18:23:14,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:23:14,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:23:14,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:23:14,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:23:14,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 18:23:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:23:14,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-08 18:23:14,708 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:23:15,099 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-08 18:23:15,102 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:23:15,259 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-08 18:23:15,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:23:15,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805590473]
[2024-11-08 18:23:15,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-08 18:23:15,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120603693]
[2024-11-08 18:23:15,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120603693] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:23:15,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 18:23:15,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10
[2024-11-08 18:23:15,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707842139]
[2024-11-08 18:23:15,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:23:15,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 18:23:15,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:23:15,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 18:23:15,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-11-08 18:23:15,273 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-11-08 18:23:15,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:23:15,393 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions.
[2024-11-08 18:23:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:23:15,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24
[2024-11-08 18:23:15,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:23:15,395 INFO L225 Difference]: With dead ends: 31
[2024-11-08 18:23:15,395 INFO L226 Difference]: Without dead ends: 29
[2024-11-08 18:23:15,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2024-11-08 18:23:15,397 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 7 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:23:15,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 76 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:23:15,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2024-11-08 18:23:15,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2024-11-08 18:23:15,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-08 18:23:15,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions.
[2024-11-08 18:23:15,408 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 24
[2024-11-08 18:23:15,410 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:23:15,410 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions.
[2024-11-08 18:23:15,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-11-08 18:23:15,411 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions.
[2024-11-08 18:23:15,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2024-11-08 18:23:15,412 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:23:15,412 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:23:15,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 18:23:15,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:23:15,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:23:15,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:23:15,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1471630697, now seen corresponding path program 1 times
[2024-11-08 18:23:15,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:23:15,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869558898]
[2024-11-08 18:23:15,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:23:15,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:23:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-08 18:23:15,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [717811662]
[2024-11-08 18:23:15,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:23:15,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:23:15,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:23:15,652 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:23:15,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 18:23:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:23:15,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-08 18:23:15,745 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:23:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-08 18:23:15,887 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:23:16,077 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-08 18:23:16,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:23:16,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869558898]
[2024-11-08 18:23:16,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-08 18:23:16,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717811662]
[2024-11-08 18:23:16,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717811662] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:23:16,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 18:23:16,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10
[2024-11-08 18:23:16,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753523569]
[2024-11-08 18:23:16,079 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:23:16,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 18:23:16,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:23:16,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 18:23:16,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2024-11-08 18:23:16,081 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5)
[2024-11-08 18:23:20,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2024-11-08 18:23:20,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:23:20,313 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions.
[2024-11-08 18:23:20,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 18:23:20,314 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 30
[2024-11-08 18:23:20,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:23:20,317 INFO L225 Difference]: With dead ends: 39
[2024-11-08 18:23:20,319 INFO L226 Difference]: Without dead ends: 35
[2024-11-08 18:23:20,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110
[2024-11-08 18:23:20,321 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 8 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2024-11-08 18:23:20,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 96 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time]
[2024-11-08 18:23:20,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2024-11-08 18:23:20,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31.
[2024-11-08 18:23:20,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-08 18:23:20,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions.
[2024-11-08 18:23:20,342 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 30
[2024-11-08 18:23:20,343 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:23:20,343 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions.
[2024-11-08 18:23:20,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5)
[2024-11-08 18:23:20,345 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions.
[2024-11-08 18:23:20,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2024-11-08 18:23:20,346 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:23:20,347 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:23:20,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-08 18:23:20,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:23:20,550 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:23:20,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:23:20,550 INFO L85 PathProgramCache]: Analyzing trace with hash 273241167, now seen corresponding path program 1 times
[2024-11-08 18:23:20,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:23:20,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701750811]
[2024-11-08 18:23:20,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:23:20,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:23:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-08 18:23:20,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [715321569]
[2024-11-08 18:23:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:23:20,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:23:20,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:23:20,586 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:23:20,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 18:23:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:23:20,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-08 18:23:20,643 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:23:20,746 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-11-08 18:23:20,747 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:23:20,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:23:20,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701750811]
[2024-11-08 18:23:20,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-08 18:23:20,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715321569]
[2024-11-08 18:23:20,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715321569] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:23:20,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:23:20,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-08 18:23:20,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320143308]
[2024-11-08 18:23:20,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:23:20,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 18:23:20,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:23:20,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 18:23:20,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2024-11-08 18:23:20,751 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5)
[2024-11-08 18:23:20,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:23:20,918 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions.
[2024-11-08 18:23:20,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 18:23:20,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 35
[2024-11-08 18:23:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:23:20,920 INFO L225 Difference]: With dead ends: 43
[2024-11-08 18:23:20,920 INFO L226 Difference]: Without dead ends: 37
[2024-11-08 18:23:20,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-11-08 18:23:20,922 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:23:20,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 112 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:23:20,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-11-08 18:23:20,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36.
[2024-11-08 18:23:20,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-08 18:23:20,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions.
[2024-11-08 18:23:20,934 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 35
[2024-11-08 18:23:20,934 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:23:20,935 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions.
[2024-11-08 18:23:20,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5)
[2024-11-08 18:23:20,935 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions.
[2024-11-08 18:23:20,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-11-08 18:23:20,940 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:23:20,940 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:23:20,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 18:23:21,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:23:21,145 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:23:21,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:23:21,146 INFO L85 PathProgramCache]: Analyzing trace with hash 292365760, now seen corresponding path program 1 times
[2024-11-08 18:23:21,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:23:21,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056217421]
[2024-11-08 18:23:21,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:23:21,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:23:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-08 18:23:21,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1274837485]
[2024-11-08 18:23:21,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:23:21,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:23:21,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:23:21,248 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:23:21,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 18:23:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:23:21,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 18:23:21,332 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:23:21,393 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-11-08 18:23:21,396 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:23:21,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:23:21,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056217421]
[2024-11-08 18:23:21,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-08 18:23:21,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274837485]
[2024-11-08 18:23:21,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274837485] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:23:21,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:23:21,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 18:23:21,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427648824]
[2024-11-08 18:23:21,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:23:21,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:23:21,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:23:21,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:23:21,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:23:21,401 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-11-08 18:23:21,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:23:21,490 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions.
[2024-11-08 18:23:21,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:23:21,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 45
[2024-11-08 18:23:21,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:23:21,493 INFO L225 Difference]: With dead ends: 48
[2024-11-08 18:23:21,494 INFO L226 Difference]: Without dead ends: 42
[2024-11-08 18:23:21,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-08 18:23:21,496 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:23:21,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 123 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:23:21,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2024-11-08 18:23:21,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39.
[2024-11-08 18:23:21,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-08 18:23:21,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions.
[2024-11-08 18:23:21,521 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 45
[2024-11-08 18:23:21,521 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:23:21,521 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions.
[2024-11-08 18:23:21,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2024-11-08 18:23:21,522 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions.
[2024-11-08 18:23:21,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-11-08 18:23:21,524 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 18:23:21,524 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:23:21,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-08 18:23:21,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:23:21,725 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:23:21,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:23:21,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1295982142, now seen corresponding path program 1 times
[2024-11-08 18:23:21,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:23:21,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030814901]
[2024-11-08 18:23:21,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:23:21,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:23:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-08 18:23:21,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640765932]
[2024-11-08 18:23:21,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:23:21,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:23:21,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:23:21,774 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:23:21,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 18:23:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:23:21,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-08 18:23:21,851 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:23:21,998 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-11-08 18:23:21,999 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:23:22,088 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2024-11-08 18:23:22,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:23:22,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030814901]
[2024-11-08 18:23:22,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-08 18:23:22,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640765932]
[2024-11-08 18:23:22,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640765932] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:23:22,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 18:23:22,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11
[2024-11-08 18:23:22,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12925855]
[2024-11-08 18:23:22,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:23:22,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 18:23:22,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:23:22,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 18:23:22,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-11-08 18:23:22,091 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-08 18:23:22,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:23:22,217 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions.
[2024-11-08 18:23:22,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:23:22,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45
[2024-11-08 18:23:22,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:23:22,218 INFO L225 Difference]: With dead ends: 39
[2024-11-08 18:23:22,218 INFO L226 Difference]: Without dead ends: 0
[2024-11-08 18:23:22,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 77 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132
[2024-11-08 18:23:22,219 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:23:22,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 103 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:23:22,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-08 18:23:22,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-08 18:23:22,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:23:22,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-08 18:23:22,221 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45
[2024-11-08 18:23:22,222 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:23:22,222 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-08 18:23:22,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-11-08 18:23:22,222 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-08 18:23:22,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-08 18:23:22,225 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-08 18:23:22,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-08 18:23:22,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-11-08 18:23:22,434 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2024-11-08 18:23:22,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-08 18:23:22,738 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 18:23:22,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:23:22 BoogieIcfgContainer
[2024-11-08 18:23:22,763 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 18:23:22,763 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 18:23:22,763 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 18:23:22,764 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 18:23:22,764 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:23:14" (3/4) ...
[2024-11-08 18:23:22,767 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-08 18:23:22,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not
[2024-11-08 18:23:22,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2024-11-08 18:23:22,776 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges
[2024-11-08 18:23:22,776 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-08 18:23:22,777 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-08 18:23:22,777 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-08 18:23:22,878 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/witness.graphml
[2024-11-08 18:23:22,882 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/witness.yml
[2024-11-08 18:23:22,882 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 18:23:22,883 INFO L158 Benchmark]: Toolchain (without parser) took 9694.08ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 120.4MB in the beginning and 80.3MB in the end (delta: 40.1MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB.
[2024-11-08 18:23:22,883 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 159.4MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:23:22,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.01ms. Allocated memory is still 159.4MB. Free memory was 120.0MB in the beginning and 106.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 18:23:22,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.13ms. Allocated memory is still 159.4MB. Free memory was 106.3MB in the beginning and 104.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:23:22,884 INFO L158 Benchmark]: Boogie Preprocessor took 67.28ms. Allocated memory is still 159.4MB. Free memory was 104.3MB in the beginning and 102.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:23:22,885 INFO L158 Benchmark]: RCFGBuilder took 392.61ms. Allocated memory is still 159.4MB. Free memory was 102.7MB in the beginning and 90.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 18:23:22,885 INFO L158 Benchmark]: TraceAbstraction took 8700.03ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 89.7MB in the beginning and 85.6MB in the end (delta: 4.1MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB.
[2024-11-08 18:23:22,886 INFO L158 Benchmark]: Witness Printer took 119.24ms. Allocated memory is still 197.1MB. Free memory was 85.6MB in the beginning and 80.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2024-11-08 18:23:22,888 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31ms. Allocated memory is still 159.4MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 367.01ms. Allocated memory is still 159.4MB. Free memory was 120.0MB in the beginning and 106.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 40.13ms. Allocated memory is still 159.4MB. Free memory was 106.3MB in the beginning and 104.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 67.28ms. Allocated memory is still 159.4MB. Free memory was 104.3MB in the beginning and 102.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 392.61ms. Allocated memory is still 159.4MB. Free memory was 102.7MB in the beginning and 90.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 8700.03ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 89.7MB in the beginning and 85.6MB in the end (delta: 4.1MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB.
* Witness Printer took 119.24ms. Allocated memory is still 197.1MB. Free memory was 85.6MB in the beginning and 80.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 14]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 546 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 391 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 286 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 155 mSDtfsCounter, 286 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 288 GetRequests, 239 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=5, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 382 NumberOfCodeBlocks, 382 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 293 ConstructedInterpolants, 1 QuantifiedInterpolants, 597 SizeOfPredicates, 17 NumberOfNonLiveVariables, 460 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 175/183 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
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 34]: Loop Invariant
Derived loop invariant: ((1 <= y) && ((q + (((__int128) a * b) * p)) == ((long long) x * y)))
- ProcedureContractResult [Line: 8]: Procedure Contract for assume_abort_if_not
Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0)
- ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert
Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: (1 <= cond)
RESULT: Ultimate proved your program to be correct!
[2024-11-08 18:23:22,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a684a-8b3d-4076-a02e-5da73c3cc723/bin/uautomizer-verify-jihMAELWvX/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
Writing output log to file Ultimate.log
Result:
TRUE