./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 4f9af400
extending candidate: java
['java']
extending candidate: /usr/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/oracle-jdk-bin-*/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/openjdk-*/bin/java
['java', '/usr/bin/java']
extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java
['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java']
['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'ad27d809606deb561fe152191ab0a1443c0552410f06ac9bb9a7a7bf17dec4e9']
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 ad27d809606deb561fe152191ab0a1443c0552410f06ac9bb9a7a7bf17dec4e9
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-06 23:54:51,685 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-06 23:54:51,775 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-06 23:54:51,782 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 23:54:51,782 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 23:54:51,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 23:54:51,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 23:54:51,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 23:54:51,814 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 23:54:51,815 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-06 23:54:51,815 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 23:54:51,815 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 23:54:51,816 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 23:54:51,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-06 23:54:51,816 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-06 23:54:51,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 23:54:51,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-06 23:54:51,817 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-06 23:54:51,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-06 23:54:51,817 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-06 23:54:51,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-06 23:54:51,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 23:54:51,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 23:54:51,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 23:54:51,818 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-06 23:54:51,818 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-06 23:54:51,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-06 23:54:51,818 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-06 23:54:51,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 23:54:51,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-06 23:54:51,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 23:54:51,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-06 23:54:51,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 23:54:51,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 23:54:51,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 23:54:51,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 23:54:51,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-06 23:54:51,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-06 23:54:51,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 23:54:51,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 23:54:51,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 23:54:51,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 23:54:51,821 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
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 -> ad27d809606deb561fe152191ab0a1443c0552410f06ac9bb9a7a7bf17dec4e9
[2024-11-06 23:54:52,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 23:54:52,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 23:54:52,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 23:54:52,126 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-06 23:54:52,126 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-06 23:54:52,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c
[2024-11-06 23:54:53,413 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-06 23:54:53,641 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-06 23:54:53,643 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c
[2024-11-06 23:54:53,651 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/09102cde8/136665eb83534aff91994b2934ec60bc/FLAG1a6ffa9a4
[2024-11-06 23:54:53,671 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/09102cde8/136665eb83534aff91994b2934ec60bc
[2024-11-06 23:54:53,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 23:54:53,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-06 23:54:53,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 23:54:53,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 23:54:53,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 23:54:53,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d020c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53, skipping insertion in model container
[2024-11-06 23:54:53,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,701 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-06 23:54:53,838 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c[983,996]
[2024-11-06 23:54:53,857 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 23:54:53,865 INFO L200 MainTranslator]: Completed pre-run
[2024-11-06 23:54:53,875 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c[983,996]
[2024-11-06 23:54:53,890 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 23:54:53,904 INFO L204 MainTranslator]: Completed translation
[2024-11-06 23:54:53,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53 WrapperNode
[2024-11-06 23:54:53,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 23:54:53,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 23:54:53,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 23:54:53,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 23:54:53,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,919 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,936 INFO L138 Inliner]: procedures = 16, calls = 44, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48
[2024-11-06 23:54:53,937 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 23:54:53,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 23:54:53,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 23:54:53,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 23:54:53,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,974 INFO L175 MemorySlicer]: Split 23 memory accesses to 5 slices as follows [2, 4, 2, 5, 10]. 43 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, 2, 1, 2, 2].
[2024-11-06 23:54:53,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 23:54:53,990 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 23:54:53,990 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 23:54:53,990 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-06 23:54:53,991 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (1/1) ...
[2024-11-06 23:54:53,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 23:54:54,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 23:54:54,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-06 23:54:54,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-06 23:54:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 23:54:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-06 23:54:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-06 23:54:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-06 23:54:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-06 23:54:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-11-06 23:54:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-06 23:54:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-06 23:54:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-06 23:54:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-06 23:54:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-06 23:54:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4
[2024-11-06 23:54:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 23:54:54,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 23:54:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-06 23:54:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-06 23:54:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-06 23:54:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-11-06 23:54:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4
[2024-11-06 23:54:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_26_to_34_0
[2024-11-06 23:54:54,050 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_26_to_34_0
[2024-11-06 23:54:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-06 23:54:54,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-06 23:54:54,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-06 23:54:54,133 INFO L238 CfgBuilder]: Building ICFG
[2024-11-06 23:54:54,135 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 23:54:54,275 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live.
[2024-11-06 23:54:54,275 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-06 23:54:54,284 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 23:54:54,285 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 23:54:54,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:54:54 BoogieIcfgContainer
[2024-11-06 23:54:54,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 23:54:54,288 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 23:54:54,288 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 23:54:54,293 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-06 23:54:54,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:54:53" (1/3) ...
[2024-11-06 23:54:54,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac7530f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:54:54, skipping insertion in model container
[2024-11-06 23:54:54,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:54:53" (2/3) ...
[2024-11-06 23:54:54,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac7530f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:54:54, skipping insertion in model container
[2024-11-06 23:54:54,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:54:54" (3/3) ...
[2024-11-06 23:54:54,296 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_ps2-ll.c
[2024-11-06 23:54:54,311 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 23:54:54,312 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 23:54:54,366 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 23:54:54,379 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;@71b029fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 23:54:54,379 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 23:54:54,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-06 23:54:54,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-06 23:54:54,390 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 23:54:54,391 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 23:54:54,391 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 23:54:54,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 23:54:54,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1179015159, now seen corresponding path program 1 times
[2024-11-06 23:54:54,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 23:54:54,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867506616]
[2024-11-06 23:54:54,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:54:54,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 23:54:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-06 23:54:54,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2092884040]
[2024-11-06 23:54:54,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:54:54,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:54:54,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 23:54:54,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 23:54:54,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-06 23:54:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:54:54,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 39 conjuncts are in the unsatisfiable core
[2024-11-06 23:54:54,714 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 23:54:54,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-06 23:54:54,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-06 23:54:54,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 23:54:54,971 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 23:54:54,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 23:54:54,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867506616]
[2024-11-06 23:54:54,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-06 23:54:54,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092884040]
[2024-11-06 23:54:54,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092884040] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 23:54:54,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 23:54:54,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-06 23:54:54,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668385950]
[2024-11-06 23:54:54,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 23:54:54,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-06 23:54:54,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 23:54:54,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-06 23:54:55,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-06 23:54:55,002 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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)
[2024-11-06 23:54:55,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 23:54:55,191 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions.
[2024-11-06 23:54:55,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-06 23:54:55,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 9
[2024-11-06 23:54:55,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 23:54:55,200 INFO L225 Difference]: With dead ends: 55
[2024-11-06 23:54:55,200 INFO L226 Difference]: Without dead ends: 31
[2024-11-06 23:54:55,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110
[2024-11-06 23:54:55,205 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-06 23:54:55,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 107 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-06 23:54:55,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2024-11-06 23:54:55,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30.
[2024-11-06 23:54:55,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5)
[2024-11-06 23:54:55,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions.
[2024-11-06 23:54:55,238 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 9
[2024-11-06 23:54:55,238 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 23:54:55,239 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions.
[2024-11-06 23:54:55,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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)
[2024-11-06 23:54:55,239 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions.
[2024-11-06 23:54:55,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-06 23:54:55,240 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 23:54:55,240 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 23:54:55,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-06 23:54:55,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-06 23:54:55,445 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 23:54:55,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 23:54:55,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1547283466, now seen corresponding path program 1 times
[2024-11-06 23:54:55,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 23:54:55,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893558748]
[2024-11-06 23:54:55,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:54:55,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 23:54:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-06 23:54:55,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482479300]
[2024-11-06 23:54:55,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:54:55,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:54:55,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 23:54:55,521 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 23:54:55,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-06 23:54:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:54:55,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 65 conjuncts are in the unsatisfiable core
[2024-11-06 23:54:55,671 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 23:54:55,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-06 23:54:55,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-06 23:54:55,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15
[2024-11-06 23:54:55,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-06 23:54:55,990 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 23:54:55,991 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 23:54:56,203 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-06 23:54:56,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 23:54:56,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893558748]
[2024-11-06 23:54:56,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-06 23:54:56,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482479300]
[2024-11-06 23:54:56,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482479300] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 23:54:56,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 23:54:56,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 15
[2024-11-06 23:54:56,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381994939]
[2024-11-06 23:54:56,204 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 23:54:56,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-06 23:54:56,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 23:54:56,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-06 23:54:56,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210
[2024-11-06 23:54:56,206 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 15 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-06 23:54:56,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 23:54:56,606 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions.
[2024-11-06 23:54:56,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2024-11-06 23:54:56,607 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19
[2024-11-06 23:54:56,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 23:54:56,609 INFO L225 Difference]: With dead ends: 58
[2024-11-06 23:54:56,609 INFO L226 Difference]: Without dead ends: 52
[2024-11-06 23:54:56,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552
[2024-11-06 23:54:56,611 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 50 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-06 23:54:56,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 125 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-06 23:54:56,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2024-11-06 23:54:56,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44.
[2024-11-06 23:54:56,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.103448275862069) internal successors, (32), 31 states have internal predecessors, (32), 7 states have call successors, (7), 6 states have call predecessors, (7), 7 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11)
[2024-11-06 23:54:56,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions.
[2024-11-06 23:54:56,624 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 19
[2024-11-06 23:54:56,625 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 23:54:56,625 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions.
[2024-11-06 23:54:56,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-06 23:54:56,625 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions.
[2024-11-06 23:54:56,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-06 23:54:56,626 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 23:54:56,626 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 23:54:56,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-06 23:54:56,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:54:56,831 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 23:54:56,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 23:54:56,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1773891863, now seen corresponding path program 1 times
[2024-11-06 23:54:56,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 23:54:56,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976419190]
[2024-11-06 23:54:56,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:54:56,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 23:54:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-06 23:54:56,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876738513]
[2024-11-06 23:54:56,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:54:56,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:54:56,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 23:54:56,867 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 23:54:56,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-06 23:54:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:54:56,968 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-06 23:54:56,971 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 23:54:56,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-06 23:54:56,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-06 23:54:57,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 23:54:57,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 23:54:57,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 23:54:57,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976419190]
[2024-11-06 23:54:57,072 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-06 23:54:57,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876738513]
[2024-11-06 23:54:57,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876738513] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 23:54:57,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 23:54:57,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-06 23:54:57,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082335491]
[2024-11-06 23:54:57,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 23:54:57,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-06 23:54:57,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 23:54:57,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-06 23:54:57,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-06 23:54:57,074 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-06 23:54:57,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 23:54:57,188 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions.
[2024-11-06 23:54:57,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-06 23:54:57,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19
[2024-11-06 23:54:57,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 23:54:57,189 INFO L225 Difference]: With dead ends: 52
[2024-11-06 23:54:57,189 INFO L226 Difference]: Without dead ends: 44
[2024-11-06 23:54:57,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-06 23:54:57,190 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-06 23:54:57,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 50 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-06 23:54:57,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2024-11-06 23:54:57,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2024-11-06 23:54:57,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 7 states have call successors, (7), 6 states have call predecessors, (7), 7 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11)
[2024-11-06 23:54:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions.
[2024-11-06 23:54:57,208 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 19
[2024-11-06 23:54:57,208 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 23:54:57,208 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions.
[2024-11-06 23:54:57,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-06 23:54:57,209 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions.
[2024-11-06 23:54:57,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-06 23:54:57,210 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 23:54:57,210 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 23:54:57,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-06 23:54:57,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:54:57,411 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 23:54:57,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 23:54:57,412 INFO L85 PathProgramCache]: Analyzing trace with hash -362955913, now seen corresponding path program 1 times
[2024-11-06 23:54:57,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 23:54:57,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662877637]
[2024-11-06 23:54:57,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:54:57,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 23:54:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-06 23:54:57,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [602415604]
[2024-11-06 23:54:57,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:54:57,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:54:57,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 23:54:57,480 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 23:54:57,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-06 23:54:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 23:54:57,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 74 conjuncts are in the unsatisfiable core
[2024-11-06 23:54:57,599 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 23:54:57,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-06 23:54:57,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-06 23:54:58,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13
[2024-11-06 23:54:58,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-06 23:54:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-06 23:54:58,186 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 23:54:59,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21
[2024-11-06 23:54:59,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 23:54:59,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662877637]
[2024-11-06 23:54:59,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-06 23:54:59,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602415604]
[2024-11-06 23:54:59,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602415604] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 23:54:59,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2024-11-06 23:54:59,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2024-11-06 23:54:59,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474894267]
[2024-11-06 23:54:59,480 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2024-11-06 23:54:59,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-06 23:54:59,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 23:54:59,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-06 23:54:59,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462
[2024-11-06 23:54:59,482 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 15 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 12 states have internal predecessors, (21), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-06 23:54:59,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 23:54:59,986 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions.
[2024-11-06 23:54:59,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-11-06 23:54:59,986 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 12 states have internal predecessors, (21), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 31
[2024-11-06 23:54:59,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 23:54:59,987 INFO L225 Difference]: With dead ends: 50
[2024-11-06 23:54:59,988 INFO L226 Difference]: Without dead ends: 40
[2024-11-06 23:54:59,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=121, Invalid=749, Unknown=0, NotChecked=0, Total=870
[2024-11-06 23:54:59,991 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-06 23:54:59,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 77 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-06 23:54:59,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2024-11-06 23:55:00,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2024-11-06 23:55:00,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.037037037037037) internal successors, (28), 27 states have internal predecessors, (28), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9)
[2024-11-06 23:55:00,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions.
[2024-11-06 23:55:00,004 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 31
[2024-11-06 23:55:00,004 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 23:55:00,005 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions.
[2024-11-06 23:55:00,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 12 states have internal predecessors, (21), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-06 23:55:00,005 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions.
[2024-11-06 23:55:00,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2024-11-06 23:55:00,006 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 23:55:00,006 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 23:55:00,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-06 23:55:00,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:55:00,207 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 23:55:00,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 23:55:00,207 INFO L85 PathProgramCache]: Analyzing trace with hash 773138775, now seen corresponding path program 2 times
[2024-11-06 23:55:00,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 23:55:00,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657042331]
[2024-11-06 23:55:00,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:55:00,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 23:55:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-06 23:55:00,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306363195]
[2024-11-06 23:55:00,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-06 23:55:00,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:55:00,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 23:55:00,278 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 23:55:00,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-06 23:55:00,418 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-06 23:55:00,418 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-06 23:55:00,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 75 conjuncts are in the unsatisfiable core
[2024-11-06 23:55:00,425 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 23:55:00,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-06 23:55:00,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-06 23:55:00,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17
[2024-11-06 23:55:00,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-06 23:55:00,839 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2024-11-06 23:55:00,840 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 23:55:01,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22
[2024-11-06 23:55:01,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10
[2024-11-06 23:55:01,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 23:55:01,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657042331]
[2024-11-06 23:55:01,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-06 23:55:01,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306363195]
[2024-11-06 23:55:01,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306363195] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 23:55:01,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2024-11-06 23:55:01,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2024-11-06 23:55:01,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646072241]
[2024-11-06 23:55:01,933 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2024-11-06 23:55:01,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-06 23:55:01,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 23:55:01,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-06 23:55:01,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272
[2024-11-06 23:55:01,934 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 12 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-06 23:55:02,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 23:55:02,109 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions.
[2024-11-06 23:55:02,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-06 23:55:02,110 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 43
[2024-11-06 23:55:02,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 23:55:02,111 INFO L225 Difference]: With dead ends: 48
[2024-11-06 23:55:02,111 INFO L226 Difference]: Without dead ends: 42
[2024-11-06 23:55:02,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342
[2024-11-06 23:55:02,112 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-06 23:55:02,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 71 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-06 23:55:02,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2024-11-06 23:55:02,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2024-11-06 23:55:02,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10)
[2024-11-06 23:55:02,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions.
[2024-11-06 23:55:02,121 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 43
[2024-11-06 23:55:02,121 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 23:55:02,121 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions.
[2024-11-06 23:55:02,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-06 23:55:02,123 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions.
[2024-11-06 23:55:02,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-06 23:55:02,126 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 23:55:02,126 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 23:55:02,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-06 23:55:02,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:55:02,326 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 23:55:02,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 23:55:02,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1797888695, now seen corresponding path program 3 times
[2024-11-06 23:55:02,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 23:55:02,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480634688]
[2024-11-06 23:55:02,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:55:02,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 23:55:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-06 23:55:02,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675410372]
[2024-11-06 23:55:02,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-06 23:55:02,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:55:02,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 23:55:02,417 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 23:55:02,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-06 23:55:02,579 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-11-06 23:55:02,579 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-06 23:55:02,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 117 conjuncts are in the unsatisfiable core
[2024-11-06 23:55:02,587 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 23:55:02,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-06 23:55:02,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-06 23:55:03,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-06 23:55:03,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2024-11-06 23:55:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 13 proven. 30 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-11-06 23:55:03,127 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 23:55:04,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22
[2024-11-06 23:55:04,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10
[2024-11-06 23:55:21,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 23:55:21,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480634688]
[2024-11-06 23:55:21,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-06 23:55:21,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675410372]
[2024-11-06 23:55:21,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675410372] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 23:55:21,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2024-11-06 23:55:21,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16
[2024-11-06 23:55:21,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820364982]
[2024-11-06 23:55:21,148 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2024-11-06 23:55:21,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-06 23:55:21,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 23:55:21,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-06 23:55:21,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=441, Unknown=1, NotChecked=0, Total=506
[2024-11-06 23:55:21,149 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 16 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 14 states have internal predecessors, (25), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7)
[2024-11-06 23:55:21,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 23:55:21,542 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions.
[2024-11-06 23:55:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-06 23:55:21,543 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 14 states have internal predecessors, (25), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) Word has length 55
[2024-11-06 23:55:21,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 23:55:21,544 INFO L225 Difference]: With dead ends: 50
[2024-11-06 23:55:21,544 INFO L226 Difference]: Without dead ends: 44
[2024-11-06 23:55:21,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=93, Invalid=608, Unknown=1, NotChecked=0, Total=702
[2024-11-06 23:55:21,545 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-06 23:55:21,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 122 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-06 23:55:21,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2024-11-06 23:55:21,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2024-11-06 23:55:21,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 7 states have call successors, (7), 6 states have call predecessors, (7), 7 states have return successors, (11), 8 states have call predecessors, (11), 6 states have call successors, (11)
[2024-11-06 23:55:21,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions.
[2024-11-06 23:55:21,555 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 55
[2024-11-06 23:55:21,556 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 23:55:21,557 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions.
[2024-11-06 23:55:21,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 14 states have internal predecessors, (25), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7)
[2024-11-06 23:55:21,557 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions.
[2024-11-06 23:55:21,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2024-11-06 23:55:21,558 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 23:55:21,558 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 23:55:21,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-06 23:55:21,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-11-06 23:55:21,758 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 23:55:21,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 23:55:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash 927657879, now seen corresponding path program 4 times
[2024-11-06 23:55:21,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 23:55:21,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521207342]
[2024-11-06 23:55:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 23:55:21,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 23:55:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-06 23:55:21,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123326629]
[2024-11-06 23:55:21,847 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-06 23:55:21,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:55:21,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 23:55:21,851 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 23:55:21,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-06 23:55:22,002 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-06 23:55:22,002 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-06 23:55:22,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 122 conjuncts are in the unsatisfiable core
[2024-11-06 23:55:22,013 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 23:55:22,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2024-11-06 23:55:22,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-11-06 23:55:22,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9
[2024-11-06 23:55:22,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25
[2024-11-06 23:55:22,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19
[2024-11-06 23:55:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 53 proven. 31 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2024-11-06 23:55:22,525 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 23:55:23,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 144
[2024-11-06 23:55:23,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-06 23:55:23,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 169 treesize of output 120
[2024-11-06 23:55:28,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 166
[2024-11-06 23:55:32,162 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int#4| c_func_to_recursive_line_26_to_34_0_~y.base))) (let ((.cse0 (select .cse3 c_func_to_recursive_line_26_to_34_0_~y.offset))) (let ((.cse1 (* .cse0 .cse0))) (or (and (= (+ (* 5 .cse0) .cse1 6) (let ((.cse2 (select (select (store |c_#memory_int#4| c_func_to_recursive_line_26_to_34_0_~y.base (store .cse3 c_func_to_recursive_line_26_to_34_0_~y.offset (+ .cse0 2))) |c_func_to_recursive_line_26_to_34_0_#in~y.base|) |c_func_to_recursive_line_26_to_34_0_#in~y.offset|))) (+ (* .cse2 .cse2) .cse2))) (= |c_func_to_recursive_line_26_to_34_0_#in~x.base| c_func_to_recursive_line_26_to_34_0_~x.base) (= c_func_to_recursive_line_26_to_34_0_~x.offset |c_func_to_recursive_line_26_to_34_0_#in~x.offset|)) (not (= (mod (+ .cse0 .cse1) 2) 0)))))) is different from false
[2024-11-06 23:55:44,203 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 23:55:48,211 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_old(#memory_int#4)| |c_func_to_recursive_line_26_to_34_0_#in~y.base|))) (let ((.cse1 (select .cse3 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|))) (let ((.cse0 (* .cse1 .cse1))) (and (forall ((|v_func_to_recursive_line_26_to_34_0_#in~y.offset_BEFORE_CALL_27| Int) (|v_func_to_recursive_line_26_to_34_0_#in~y.base_BEFORE_CALL_27| Int)) (or (not (= (+ 6 .cse0 (* 5 .cse1)) (let ((.cse2 (select (select (store |c_old(#memory_int#4)| |c_func_to_recursive_line_26_to_34_0_#in~y.base| (store .cse3 |c_func_to_recursive_line_26_to_34_0_#in~y.offset| (+ 2 .cse1))) |v_func_to_recursive_line_26_to_34_0_#in~y.base_BEFORE_CALL_27|) |v_func_to_recursive_line_26_to_34_0_#in~y.offset_BEFORE_CALL_27|))) (+ .cse2 (* .cse2 .cse2))))) (= (let ((.cse4 (select (select |c_#memory_int#4| |v_func_to_recursive_line_26_to_34_0_#in~y.base_BEFORE_CALL_27|) |v_func_to_recursive_line_26_to_34_0_#in~y.offset_BEFORE_CALL_27|))) (+ .cse4 (* .cse4 .cse4))) (* 2 (select (select |c_#memory_int#3| |c_func_to_recursive_line_26_to_34_0_#in~x.base|) |c_func_to_recursive_line_26_to_34_0_#in~x.offset|))))) (or (forall ((|v_func_to_recursive_line_26_to_34_0_#in~x.offset_BEFORE_CALL_27| Int) (|v_func_to_recursive_line_26_to_34_0_#in~y.offset_BEFORE_CALL_27| Int) (|v_func_to_recursive_line_26_to_34_0_#in~x.base_BEFORE_CALL_27| Int) (|v_func_to_recursive_line_26_to_34_0_#in~y.base_BEFORE_CALL_27| Int)) (= (let ((.cse5 (select (select |c_#memory_int#4| |v_func_to_recursive_line_26_to_34_0_#in~y.base_BEFORE_CALL_27|) |v_func_to_recursive_line_26_to_34_0_#in~y.offset_BEFORE_CALL_27|))) (+ .cse5 (* .cse5 .cse5))) (* (select (select |c_#memory_int#3| |v_func_to_recursive_line_26_to_34_0_#in~x.base_BEFORE_CALL_27|) |v_func_to_recursive_line_26_to_34_0_#in~x.offset_BEFORE_CALL_27|) 2))) (= (mod (+ .cse0 .cse1) 2) 0)))))) is different from true
[2024-11-06 23:56:00,235 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 23:56:04,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 166
[2024-11-06 23:56:13,969 WARN L214 Elim1Store]: Array PQE input equivalent to true
[2024-11-06 23:56:17,976 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int#4| c_func_to_recursive_line_26_to_34_0_~y.base))) (let ((.cse0 (select .cse4 c_func_to_recursive_line_26_to_34_0_~y.offset))) (let ((.cse1 (* .cse0 .cse0))) (or (not (= (mod (+ .cse0 .cse1) 2) 0)) (let ((.cse9 (select |c_old(#memory_int#4)| |c_func_to_recursive_line_26_to_34_0_#in~y.base|))) (let ((.cse10 (select .cse9 |c_func_to_recursive_line_26_to_34_0_#in~y.offset|))) (let ((.cse5 (+ 6 (* .cse10 .cse10) (* 5 .cse10))) (.cse7 (store |c_old(#memory_int#4)| |c_func_to_recursive_line_26_to_34_0_#in~y.base| (store .cse9 |c_func_to_recursive_line_26_to_34_0_#in~y.offset| (+ 2 .cse10))))) (let ((.cse2 (forall ((|v_func_to_recursive_line_26_to_34_0_#in~y.offset_BEFORE_CALL_27| Int) (|v_func_to_recursive_line_26_to_34_0_#in~y.base_BEFORE_CALL_27| Int)) (not (= .cse5 (let ((.cse8 (select (select .cse7 |v_func_to_recursive_line_26_to_34_0_#in~y.base_BEFORE_CALL_27|) |v_func_to_recursive_line_26_to_34_0_#in~y.offset_BEFORE_CALL_27|))) (+ .cse8 (* .cse8 .cse8)))))))) (and (or .cse2 (= |c_func_to_recursive_line_26_to_34_0_#in~x.base| c_func_to_recursive_line_26_to_34_0_~x.base)) (or .cse2 (= c_func_to_recursive_line_26_to_34_0_~x.offset |c_func_to_recursive_line_26_to_34_0_#in~x.offset|)) (forall ((|v_func_to_recursive_line_26_to_34_0_#in~y.offset_BEFORE_CALL_27| Int) (|v_func_to_recursive_line_26_to_34_0_#in~y.base_BEFORE_CALL_27| Int)) (or (= (+ (* .cse0 3) 2 .cse1) (let ((.cse3 (select (select (store |c_#memory_int#4| c_func_to_recursive_line_26_to_34_0_~y.base (store .cse4 c_func_to_recursive_line_26_to_34_0_~y.offset (+ .cse0 1))) |v_func_to_recursive_line_26_to_34_0_#in~y.base_BEFORE_CALL_27|) |v_func_to_recursive_line_26_to_34_0_#in~y.offset_BEFORE_CALL_27|))) (+ (* .cse3 .cse3) .cse3))) (not (= .cse5 (let ((.cse6 (select (select .cse7 |v_func_to_recursive_line_26_to_34_0_#in~y.base_BEFORE_CALL_27|) |v_func_to_recursive_line_26_to_34_0_#in~y.offset_BEFORE_CALL_27|))) (+ .cse6 (* .cse6 .cse6)))))))))))))))) is different from false
[2024-11-06 23:56:17,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 23:56:17,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521207342]
[2024-11-06 23:56:17,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-06 23:56:17,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123326629]
[2024-11-06 23:56:17,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123326629] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 23:56:17,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2024-11-06 23:56:17,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19
[2024-11-06 23:56:17,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005597889]
[2024-11-06 23:56:17,979 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2024-11-06 23:56:17,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-06 23:56:17,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 23:56:17,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-06 23:56:17,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=329, Unknown=3, NotChecked=114, Total=506
[2024-11-06 23:56:17,982 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 19 states, 16 states have (on average 1.75) internal successors, (28), 15 states have internal predecessors, (28), 6 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8)
[2024-11-06 23:56:18,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 23:56:18,311 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions.
[2024-11-06 23:56:18,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-06 23:56:18,311 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 1.75) internal successors, (28), 15 states have internal predecessors, (28), 6 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) Word has length 67
[2024-11-06 23:56:18,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 23:56:18,312 INFO L225 Difference]: With dead ends: 44
[2024-11-06 23:56:18,312 INFO L226 Difference]: Without dead ends: 0
[2024-11-06 23:56:18,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=114, Invalid=597, Unknown=3, NotChecked=156, Total=870
[2024-11-06 23:56:18,313 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-06 23:56:18,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 85 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-06 23:56:18,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-06 23:56:18,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-06 23:56:18,314 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)
[2024-11-06 23:56:18,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-06 23:56:18,314 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67
[2024-11-06 23:56:18,315 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 23:56:18,315 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-06 23:56:18,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 1.75) internal successors, (28), 15 states have internal predecessors, (28), 6 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8)
[2024-11-06 23:56:18,315 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-06 23:56:18,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-06 23:56:18,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-06 23:56:18,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-06 23:56:18,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 23:56:18,521 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1]
[2024-11-06 23:56:18,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-06 23:56:19,509 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-06 23:56:19,515 WARN L156 FloydHoareUtils]: Requires clause for func_to_recursive_line_26_to_34_0 contained old-variable. Original clause: (and (= |#memory_int#4| |old(#memory_int#4)|) (= (let ((.cse0 (select (select |old(#memory_int#4)| |func_to_recursive_line_26_to_34_0_#in~y.base|) |func_to_recursive_line_26_to_34_0_#in~y.offset|))) (+ (* .cse0 .cse0) .cse0)) (* 2 (select (select |old(#memory_int#3)| |func_to_recursive_line_26_to_34_0_#in~x.base|) |func_to_recursive_line_26_to_34_0_#in~x.offset|))) (= |#memory_int#3| |old(#memory_int#3)|)) Eliminated clause: (= (* 2 (select (select |#memory_int#3| |func_to_recursive_line_26_to_34_0_#in~x.base|) |func_to_recursive_line_26_to_34_0_#in~x.offset|)) (let ((.cse0 (select (select |#memory_int#4| |func_to_recursive_line_26_to_34_0_#in~y.base|) |func_to_recursive_line_26_to_34_0_#in~y.offset|))) (+ (* .cse0 .cse0) .cse0)))
[2024-11-06 23:56:19,522 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#3
[2024-11-06 23:56:19,523 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#3,GLOBAL]
[2024-11-06 23:56:19,523 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#3,GLOBAL],[IdentifierExpression[#in~x!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
[2024-11-06 23:56:19,523 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4
[2024-11-06 23:56:19,523 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL]
[2024-11-06 23:56:19,523 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
[2024-11-06 23:56:19,523 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4
[2024-11-06 23:56:19,524 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL]
[2024-11-06 23:56:19,524 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
[2024-11-06 23:56:19,524 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4
[2024-11-06 23:56:19,524 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL]
[2024-11-06 23:56:19,524 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
[2024-11-06 23:56:19,524 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#3
[2024-11-06 23:56:19,524 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#3,GLOBAL]
[2024-11-06 23:56:19,524 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#3,GLOBAL],[IdentifierExpression[#in~x!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
[2024-11-06 23:56:19,524 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4
[2024-11-06 23:56:19,524 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL]
[2024-11-06 23:56:19,524 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
[2024-11-06 23:56:19,525 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4
[2024-11-06 23:56:19,525 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL]
[2024-11-06 23:56:19,525 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
[2024-11-06 23:56:19,525 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4
[2024-11-06 23:56:19,525 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL]
[2024-11-06 23:56:19,525 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
[2024-11-06 23:56:19,525 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4
[2024-11-06 23:56:19,525 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]]
[2024-11-06 23:56:19,525 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
[2024-11-06 23:56:19,525 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4
[2024-11-06 23:56:19,526 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]]
[2024-11-06 23:56:19,526 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
[2024-11-06 23:56:19,526 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4
[2024-11-06 23:56:19,526 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]]
[2024-11-06 23:56:19,526 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
[2024-11-06 23:56:19,526 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#3
[2024-11-06 23:56:19,526 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]]
[2024-11-06 23:56:19,527 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]],[IdentifierExpression[#in~x!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
[2024-11-06 23:56:19,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:56:19 BoogieIcfgContainer
[2024-11-06 23:56:19,532 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-06 23:56:19,532 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-06 23:56:19,532 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-06 23:56:19,532 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-06 23:56:19,533 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:54:54" (3/4) ...
[2024-11-06 23:56:19,535 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-06 23:56:19,539 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_26_to_34_0
[2024-11-06 23:56:19,540 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2024-11-06 23:56:19,545 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges
[2024-11-06 23:56:19,545 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-11-06 23:56:19,545 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-06 23:56:19,545 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-06 23:56:19,613 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-06 23:56:19,613 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-06 23:56:19,614 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-06 23:56:19,614 INFO L158 Benchmark]: Toolchain (without parser) took 85938.19ms. Allocated memory was 100.7MB in the beginning and 184.5MB in the end (delta: 83.9MB). Free memory was 77.4MB in the beginning and 60.7MB in the end (delta: 16.7MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB.
[2024-11-06 23:56:19,614 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 23:56:19,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.72ms. Allocated memory is still 100.7MB. Free memory was 77.2MB in the beginning and 66.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 23:56:19,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.29ms. Allocated memory is still 100.7MB. Free memory was 66.0MB in the beginning and 64.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 23:56:19,616 INFO L158 Benchmark]: Boogie Preprocessor took 49.99ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 63.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 23:56:19,616 INFO L158 Benchmark]: RCFGBuilder took 296.30ms. Allocated memory is still 100.7MB. Free memory was 63.4MB in the beginning and 51.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 23:56:19,617 INFO L158 Benchmark]: TraceAbstraction took 85243.65ms. Allocated memory was 100.7MB in the beginning and 184.5MB in the end (delta: 83.9MB). Free memory was 50.9MB in the beginning and 66.0MB in the end (delta: -15.1MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB.
[2024-11-06 23:56:19,618 INFO L158 Benchmark]: Witness Printer took 81.41ms. Allocated memory is still 184.5MB. Free memory was 66.0MB in the beginning and 60.7MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 23:56:19,620 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 227.72ms. Allocated memory is still 100.7MB. Free memory was 77.2MB in the beginning and 66.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 30.29ms. Allocated memory is still 100.7MB. Free memory was 66.0MB in the beginning and 64.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 49.99ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 63.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 296.30ms. Allocated memory is still 100.7MB. Free memory was 63.4MB in the beginning and 51.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 85243.65ms. Allocated memory was 100.7MB in the beginning and 184.5MB in the end (delta: 83.9MB). Free memory was 50.9MB in the beginning and 66.0MB in the end (delta: -15.1MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB.
* Witness Printer took 81.41ms. Allocated memory is still 184.5MB. Free memory was 66.0MB in the beginning and 60.7MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#3
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#3,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#3,GLOBAL],[IdentifierExpression[#in~x!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#4
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#4
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#4
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#3
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#3,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#3,GLOBAL],[IdentifierExpression[#in~x!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#4
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#4
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#4
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#4
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#4
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#4
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#4,GLOBAL]],[IdentifierExpression[#in~y!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #memory_int#3
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]]
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]],[IdentifierExpression[#in~x!base,<IMPLEMENTATION_INPARAM,func_to_recursive_line_26_to_34_0>]]]
* 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: 37]: 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, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 84.2s, OverallIterations: 7, TraceHistogramMax: 6, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 116 mSDsluCounter, 637 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 544 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1082 IncrementalHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 93 mSDtfsCounter, 1082 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 343 GetRequests, 197 SyntacticMatches, 10 SemanticMatches, 136 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 31.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=2, InterpolantAutomatonStates: 87, 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, 7 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 78.9s InterpolantComputationTime, 486 NumberOfCodeBlocks, 482 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 254 ConstructedInterpolants, 4 QuantifiedInterpolants, 3368 SizeOfPredicates, 118 NumberOfNonLiveVariables, 1803 ConjunctsInSsa, 513 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 182/270 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
- ProcedureContractResult [Line: 31]: 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!
[2024-11-06 23:56:19,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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