/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/recursified_nla-digbench/recursified_ps4-ll.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 07:04:35,378 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-12-25 07:04:35,442 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-25 07:04:35,446 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 07:04:35,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 07:04:35,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 07:04:35,470 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 07:04:35,470 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 07:04:35,470 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 07:04:35,473 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-12-25 07:04:35,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 07:04:35,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 07:04:35,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 07:04:35,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-12-25 07:04:35,475 INFO L153 SettingsManager]: * Use SBE=true
[2023-12-25 07:04:35,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 07:04:35,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-12-25 07:04:35,476 INFO L153 SettingsManager]: * sizeof long=4
[2023-12-25 07:04:35,476 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-12-25 07:04:35,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-12-25 07:04:35,477 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 07:04:35,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 07:04:35,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 07:04:35,478 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-12-25 07:04:35,478 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-12-25 07:04:35,478 INFO L153 SettingsManager]: * Allow undefined functions=false
[2023-12-25 07:04:35,478 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-25 07:04:35,478 INFO L153 SettingsManager]: * sizeof long double=12
[2023-12-25 07:04:35,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-12-25 07:04:35,479 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-12-25 07:04:35,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 07:04:35,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-12-25 07:04:35,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 07:04:35,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-12-25 07:04:35,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 07:04:35,480 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 07:04:35,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 07:04:35,480 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 07:04:35,480 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-12-25 07:04:35,480 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-25 07:04:35,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 07:04:35,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 07:04:35,481 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 07:04:35,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 07:04:35,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 07:04:35,481 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-12-25 07:04:35,481 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-25 07:04:35,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 07:04:35,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 07:04:35,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 07:04:35,763 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-12-25 07:04:35,763 INFO L274 PluginConnector]: CDTParser initialized
[2023-12-25 07:04:35,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursified_nla-digbench/recursified_ps4-ll.c
[2023-12-25 07:04:36,872 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-12-25 07:04:37,015 INFO L384 CDTParser]: Found 1 translation units.
[2023-12-25 07:04:37,015 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_ps4-ll.c
[2023-12-25 07:04:37,022 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81b050662/c086b26514ae446ea4ec318b473213a9/FLAGcc29fc5f7
[2023-12-25 07:04:37,037 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81b050662/c086b26514ae446ea4ec318b473213a9
[2023-12-25 07:04:37,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 07:04:37,039 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 07:04:37,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 07:04:37,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 07:04:37,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 07:04:37,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce29758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37, skipping insertion in model container
[2023-12-25 07:04:37,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,063 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-12-25 07:04:37,159 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_ps4-ll.c[987,1000]
[2023-12-25 07:04:37,186 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-25 07:04:37,197 INFO L202 MainTranslator]: Completed pre-run
[2023-12-25 07:04:37,206 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_ps4-ll.c[987,1000]
[2023-12-25 07:04:37,228 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-25 07:04:37,238 INFO L206 MainTranslator]: Completed translation
[2023-12-25 07:04:37,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37 WrapperNode
[2023-12-25 07:04:37,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 07:04:37,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 07:04:37,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 07:04:37,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 07:04:37,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,281 INFO L138 Inliner]: procedures = 20, calls = 63, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68
[2023-12-25 07:04:37,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 07:04:37,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 07:04:37,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 07:04:37,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 07:04:37,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,322 INFO L175 MemorySlicer]: Split 41 memory accesses to 5 slices as follows [2, 3, 5, 27, 4]. 66 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 2, 2, 2].
[2023-12-25 07:04:37,323 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,336 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 07:04:37,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 07:04:37,342 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 07:04:37,342 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-12-25 07:04:37,342 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (1/1) ...
[2023-12-25 07:04:37,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 07:04:37,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 07:04:37,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-25 07:04:37,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-25 07:04:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 07:04:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-25 07:04:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2023-12-25 07:04:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2023-12-25 07:04:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2023-12-25 07:04:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4
[2023-12-25 07:04:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-12-25 07:04:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0
[2023-12-25 07:04:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1
[2023-12-25 07:04:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2
[2023-12-25 07:04:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3
[2023-12-25 07:04:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4
[2023-12-25 07:04:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0
[2023-12-25 07:04:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1
[2023-12-25 07:04:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2
[2023-12-25 07:04:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3
[2023-12-25 07:04:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4
[2023-12-25 07:04:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 07:04:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 07:04:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0
[2023-12-25 07:04:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1
[2023-12-25 07:04:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2
[2023-12-25 07:04:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3
[2023-12-25 07:04:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4
[2023-12-25 07:04:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_26_to_34_0
[2023-12-25 07:04:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_26_to_34_0
[2023-12-25 07:04:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-12-25 07:04:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-12-25 07:04:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0
[2023-12-25 07:04:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1
[2023-12-25 07:04:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2
[2023-12-25 07:04:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3
[2023-12-25 07:04:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4
[2023-12-25 07:04:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-12-25 07:04:37,484 INFO L241 CfgBuilder]: Building ICFG
[2023-12-25 07:04:37,486 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 07:04:38,021 INFO L282 CfgBuilder]: Performing block encoding
[2023-12-25 07:04:38,041 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 07:04:38,042 INFO L309 CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 07:04:38,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:04:38 BoogieIcfgContainer
[2023-12-25 07:04:38,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 07:04:38,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 07:04:38,044 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 07:04:38,046 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-12-25 07:04:38,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 07:04:37" (1/3) ...
[2023-12-25 07:04:38,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f998b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:04:38, skipping insertion in model container
[2023-12-25 07:04:38,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:04:37" (2/3) ...
[2023-12-25 07:04:38,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f998b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:04:38, skipping insertion in model container
[2023-12-25 07:04:38,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:04:38" (3/3) ...
[2023-12-25 07:04:38,048 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_ps4-ll.c
[2023-12-25 07:04:38,059 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 07:04:38,059 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 07:04:38,088 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 07:04:38,092 INFO L357 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, mHoare=true, 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;@6180652f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 07:04:38,092 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 07:04:38,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 15 states have internal predecessors, (17), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2023-12-25 07:04:38,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-12-25 07:04:38,099 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-25 07:04:38,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 07:04:38,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 07:04:38,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 07:04:38,104 INFO L85 PathProgramCache]: Analyzing trace with hash -32795157, now seen corresponding path program 1 times
[2023-12-25 07:04:38,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-25 07:04:38,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503716652]
[2023-12-25 07:04:38,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 07:04:38,112 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-25 07:04:38,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-25 07:04:38,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-25 07:04:38,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-25 07:04:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 07:04:38,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 25 conjunts are in the unsatisfiable core
[2023-12-25 07:04:38,683 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 07:04:38,763 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-12-25 07:04:38,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17
[2023-12-25 07:04:38,797 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-12-25 07:04:38,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17
[2023-12-25 07:04:39,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-25 07:04:39,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 14
[2023-12-25 07:04:39,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-25 07:04:39,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 24
[2023-12-25 07:04:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 07:04:39,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 07:04:39,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-25 07:04:39,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503716652]
[2023-12-25 07:04:39,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503716652] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 07:04:39,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 07:04:39,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 07:04:39,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470971020]
[2023-12-25 07:04:39,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 07:04:39,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 07:04:39,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-25 07:04:39,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 07:04:39,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2023-12-25 07:04:39,202 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 15 states have internal predecessors, (17), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 07:04:42,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 07:04:45,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-12-25 07:04:49,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2023-12-25 07:04:49,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 07:04:49,415 INFO L93 Difference]: Finished difference Result 58 states and 80 transitions.
[2023-12-25 07:04:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2023-12-25 07:04:49,418 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2023-12-25 07:04:49,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 07:04:49,423 INFO L225 Difference]: With dead ends: 58
[2023-12-25 07:04:49,423 INFO L226 Difference]: Without dead ends: 35
[2023-12-25 07:04:49,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110
[2023-12-25 07:04:49,427 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time
[2023-12-25 07:04:49,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 80 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time]
[2023-12-25 07:04:49,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2023-12-25 07:04:49,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31.
[2023-12-25 07:04:49,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6)
[2023-12-25 07:04:49,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions.
[2023-12-25 07:04:49,456 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 8
[2023-12-25 07:04:49,457 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-25 07:04:49,457 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions.
[2023-12-25 07:04:49,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 07:04:49,457 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions.
[2023-12-25 07:04:49,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2023-12-25 07:04:49,458 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-25 07:04:49,458 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 07:04:49,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-25 07:04:49,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-25 07:04:49,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 07:04:49,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 07:04:49,672 INFO L85 PathProgramCache]: Analyzing trace with hash -354243652, now seen corresponding path program 1 times
[2023-12-25 07:04:49,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-25 07:04:49,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811099258]
[2023-12-25 07:04:49,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 07:04:49,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-25 07:04:49,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-25 07:04:49,674 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-25 07:04:49,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-25 07:04:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 07:04:50,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 61 conjunts are in the unsatisfiable core
[2023-12-25 07:04:50,897 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 07:04:50,932 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-12-25 07:04:50,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17
[2023-12-25 07:04:50,959 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-12-25 07:04:50,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17
[2023-12-25 07:04:51,834 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-25 07:04:51,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 33
[2023-12-25 07:04:51,864 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-25 07:04:51,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 101
[2023-12-25 07:05:07,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-25 07:05:07,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 242 treesize of output 114
[2023-12-25 07:05:07,169 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-25 07:05:07,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 130
[2023-12-25 07:05:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 07:05:09,600 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 07:05:16,506 WARN L293 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2023-12-25 07:07:40,579 WARN L293 SmtUtils]: Spent 49.57s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2023-12-25 07:08:14,594 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2023-12-25 07:08:14,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-25 07:08:14,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811099258]
[2023-12-25 07:08:14,596 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception
[2023-12-25 07:08:14,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101
[2023-12-25 07:08:14,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-25 07:08:14,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-25 07:08:14,797 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$PredicateComparison.compare(PredicateUnifier.java:845)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.<init>(PredicateUnifier.java:789)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:377)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:326)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:579)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:162)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110)
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:337)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:155)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124)
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
[2023-12-25 07:08:14,801 INFO L158 Benchmark]: Toolchain (without parser) took 217761.18ms. Allocated memory was 328.2MB in the beginning and 442.5MB in the end (delta: 114.3MB). Free memory was 276.1MB in the beginning and 276.5MB in the end (delta: -465.0kB). Peak memory consumption was 115.2MB. Max. memory is 8.0GB.
[2023-12-25 07:08:14,802 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 183.5MB. Free memory was 130.7MB in the beginning and 130.6MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 8.0GB.
[2023-12-25 07:08:14,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.46ms. Allocated memory is still 328.2MB. Free memory was 276.1MB in the beginning and 264.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2023-12-25 07:08:14,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.60ms. Allocated memory is still 328.2MB. Free memory was 264.0MB in the beginning and 261.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-12-25 07:08:14,802 INFO L158 Benchmark]: Boogie Preprocessor took 58.70ms. Allocated memory is still 328.2MB. Free memory was 261.9MB in the beginning and 259.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-12-25 07:08:14,803 INFO L158 Benchmark]: RCFGBuilder took 700.70ms. Allocated memory is still 328.2MB. Free memory was 259.8MB in the beginning and 239.9MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB.
[2023-12-25 07:08:14,804 INFO L158 Benchmark]: TraceAbstraction took 216756.56ms. Allocated memory was 328.2MB in the beginning and 442.5MB in the end (delta: 114.3MB). Free memory was 239.4MB in the beginning and 276.5MB in the end (delta: -37.2MB). Peak memory consumption was 78.5MB. Max. memory is 8.0GB.
[2023-12-25 07:08:14,805 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.44ms. Allocated memory is still 183.5MB. Free memory was 130.7MB in the beginning and 130.6MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 198.46ms. Allocated memory is still 328.2MB. Free memory was 276.1MB in the beginning and 264.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 42.60ms. Allocated memory is still 328.2MB. Free memory was 264.0MB in the beginning and 261.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 58.70ms. Allocated memory is still 328.2MB. Free memory was 261.9MB in the beginning and 259.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 700.70ms. Allocated memory is still 328.2MB. Free memory was 259.8MB in the beginning and 239.9MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB.
* TraceAbstraction took 216756.56ms. Allocated memory was 328.2MB in the beginning and 442.5MB in the end (delta: 114.3MB). Free memory was 239.4MB in the beginning and 276.5MB in the end (delta: -37.2MB). Peak memory consumption was 78.5MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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...