/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd
[2022-02-09 00:12:59,817 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-09 00:12:59,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
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[2022-02-09 00:12:59,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-09 00:12:59,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2022-02-09 00:12:59,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
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[2022-02-09 00:12:59,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-09 00:12:59,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-09 00:12:59,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-09 00:12:59,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-09 00:12:59,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-09 00:12:59,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-09 00:12:59,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-09 00:12:59,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-09 00:12:59,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-09 00:12:59,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-09 00:12:59,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
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[2022-02-09 00:12:59,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2022-02-09 00:12:59,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-02-09 00:12:59,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-09 00:12:59,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf
[2022-02-09 00:12:59,955 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-09 00:12:59,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-09 00:12:59,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-09 00:12:59,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-09 00:12:59,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-09 00:12:59,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-09 00:12:59,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-09 00:12:59,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-09 00:12:59,958 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-09 00:12:59,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-09 00:12:59,962 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-09 00:12:59,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-09 00:12:59,962 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-09 00:12:59,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-09 00:12:59,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-09 00:12:59,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-09 00:12:59,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-09 00:12:59,963 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-09 00:12:59,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-09 00:12:59,963 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-09 00:12:59,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-09 00:12:59,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-09 00:12:59,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-09 00:12:59,964 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-09 00:12:59,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-09 00:12:59,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 00:12:59,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-09 00:12:59,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-09 00:12:59,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-09 00:12:59,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-09 00:12:59,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-09 00:12:59,964 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-09 00:12:59,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-09 00:12:59,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-09 00:13:00,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-09 00:13:00,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-09 00:13:00,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-09 00:13:00,166 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-09 00:13:00,167 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-09 00:13:00,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i
[2022-02-09 00:13:00,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84aa4f292/142d449c3fc340ebbe790d44ed4928d7/FLAG9cd5e4a12
[2022-02-09 00:13:00,573 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-09 00:13:00,574 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i
[2022-02-09 00:13:00,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84aa4f292/142d449c3fc340ebbe790d44ed4928d7/FLAG9cd5e4a12
[2022-02-09 00:13:00,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84aa4f292/142d449c3fc340ebbe790d44ed4928d7
[2022-02-09 00:13:00,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-09 00:13:00,954 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-09 00:13:00,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-09 00:13:00,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-09 00:13:00,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-09 00:13:00,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:13:00" (1/1) ...
[2022-02-09 00:13:00,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f142c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:00, skipping insertion in model container
[2022-02-09 00:13:00,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:13:00" (1/1) ...
[2022-02-09 00:13:00,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-09 00:13:01,010 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-09 00:13:01,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128]
[2022-02-09 00:13:01,277 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-09 00:13:01,286 INFO L203 MainTranslator]: Completed pre-run
[2022-02-09 00:13:01,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128]
[2022-02-09 00:13:01,333 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-09 00:13:01,365 INFO L208 MainTranslator]: Completed translation
[2022-02-09 00:13:01,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:01 WrapperNode
[2022-02-09 00:13:01,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-09 00:13:01,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-09 00:13:01,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-09 00:13:01,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-09 00:13:01,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:01" (1/1) ...
[2022-02-09 00:13:01,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:01" (1/1) ...
[2022-02-09 00:13:01,405 INFO L137 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 118
[2022-02-09 00:13:01,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-09 00:13:01,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-09 00:13:01,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-09 00:13:01,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-09 00:13:01,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:01" (1/1) ...
[2022-02-09 00:13:01,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:01" (1/1) ...
[2022-02-09 00:13:01,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:01" (1/1) ...
[2022-02-09 00:13:01,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:01" (1/1) ...
[2022-02-09 00:13:01,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:01" (1/1) ...
[2022-02-09 00:13:01,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:01" (1/1) ...
[2022-02-09 00:13:01,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:01" (1/1) ...
[2022-02-09 00:13:01,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-09 00:13:01,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-09 00:13:01,430 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-09 00:13:01,430 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-09 00:13:01,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:01" (1/1) ...
[2022-02-09 00:13:01,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-09 00:13:01,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:13:01,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-02-09 00:13:01,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-02-09 00:13:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-02-09 00:13:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure worker
[2022-02-09 00:13:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure worker
[2022-02-09 00:13:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-09 00:13:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2022-02-09 00:13:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-09 00:13:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-09 00:13:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-09 00:13:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-09 00:13:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-09 00:13:01,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-09 00:13:01,486 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-09 00:13:01,607 INFO L234 CfgBuilder]: Building ICFG
[2022-02-09 00:13:01,608 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-09 00:13:01,828 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-09 00:13:01,837 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-09 00:13:01,837 INFO L299 CfgBuilder]: Removed 3 assume(true) statements.
[2022-02-09 00:13:01,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:13:01 BoogieIcfgContainer
[2022-02-09 00:13:01,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-09 00:13:01,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-09 00:13:01,841 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-09 00:13:01,845 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-09 00:13:01,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 12:13:00" (1/3) ...
[2022-02-09 00:13:01,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68236b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:13:01, skipping insertion in model container
[2022-02-09 00:13:01,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:13:01" (2/3) ...
[2022-02-09 00:13:01,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68236b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:13:01, skipping insertion in model container
[2022-02-09 00:13:01,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:13:01" (3/3) ...
[2022-02-09 00:13:01,847 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i
[2022-02-09 00:13:01,850 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-09 00:13:01,851 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-09 00:13:01,851 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-02-09 00:13:01,851 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-09 00:13:01,898 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,898 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,899 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,899 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,899 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,899 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,899 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,899 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,899 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,899 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,900 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,900 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,900 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,900 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,900 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,901 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,901 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,901 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,901 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,902 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,902 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,902 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,902 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,902 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,903 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,903 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,903 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,903 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,903 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,903 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,904 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,904 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,904 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,904 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,905 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,905 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,905 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,905 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,905 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,905 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,905 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,905 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,905 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,905 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,906 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,906 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,906 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,906 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,906 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,906 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,906 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,907 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,907 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,907 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,907 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,907 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,907 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,908 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,908 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,908 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,908 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,908 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,908 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,908 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,908 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,909 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,909 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,909 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,910 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,910 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,911 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,911 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,911 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,911 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,911 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,912 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,912 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,912 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,912 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,912 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,912 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,912 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,912 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,913 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,913 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,913 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,913 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,913 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,914 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,914 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,914 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,915 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,915 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,917 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,918 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,918 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,919 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,919 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,919 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,919 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,919 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,919 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,920 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,920 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,920 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,920 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,920 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,920 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,920 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,920 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,920 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,920 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,921 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,921 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,921 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,921 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,921 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,921 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,921 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,921 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,922 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,922 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,922 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,922 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,922 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,922 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,922 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,922 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,922 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,922 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,922 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,923 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,923 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,923 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,923 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,923 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,923 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,923 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,923 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,923 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,923 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,924 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,924 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,924 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,924 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,924 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,924 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,924 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,924 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,924 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,925 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,925 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,925 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,925 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,925 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,925 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,925 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,925 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,925 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,925 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,926 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,926 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,926 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,926 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,926 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,927 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,928 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,928 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,929 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,929 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,931 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,931 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,931 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,932 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,932 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,932 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,932 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,932 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,932 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,932 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,932 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,933 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,933 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,933 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,933 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,933 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,933 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,933 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,933 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,933 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-09 00:13:01,935 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-02-09 00:13:01,964 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-09 00:13:01,969 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR
[2022-02-09 00:13:01,969 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2022-02-09 00:13:01,976 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 142 transitions, 289 flow
[2022-02-09 00:13:02,047 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1949 states, 1947 states have (on average 2.12788906009245) internal successors, (4143), 1948 states have internal predecessors, (4143), 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)
[2022-02-09 00:13:02,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 1949 states, 1947 states have (on average 2.12788906009245) internal successors, (4143), 1948 states have internal predecessors, (4143), 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)
[2022-02-09 00:13:02,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2022-02-09 00:13:02,063 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:02,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:02,064 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:02,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:02,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1865521660, now seen corresponding path program 1 times
[2022-02-09 00:13:02,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:02,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602684813]
[2022-02-09 00:13:02,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:02,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:02,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:02,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:02,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602684813]
[2022-02-09 00:13:02,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602684813] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:02,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:02,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-02-09 00:13:02,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953916374]
[2022-02-09 00:13:02,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:02,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-02-09 00:13:02,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:02,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-02-09 00:13:02,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-02-09 00:13:02,272 INFO L87 Difference]: Start difference. First operand has 1949 states, 1947 states have (on average 2.12788906009245) internal successors, (4143), 1948 states have internal predecessors, (4143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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)
[2022-02-09 00:13:02,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:02,308 INFO L93 Difference]: Finished difference Result 1877 states and 3836 transitions.
[2022-02-09 00:13:02,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-09 00:13:02,310 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59
[2022-02-09 00:13:02,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:02,330 INFO L225 Difference]: With dead ends: 1877
[2022-02-09 00:13:02,331 INFO L226 Difference]: Without dead ends: 1877
[2022-02-09 00:13:02,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-02-09 00:13:02,335 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:02,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-09 00:13:02,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states.
[2022-02-09 00:13:02,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1877.
[2022-02-09 00:13:02,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1875 states have (on average 2.0458666666666665) internal successors, (3836), 1876 states have internal predecessors, (3836), 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)
[2022-02-09 00:13:02,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 3836 transitions.
[2022-02-09 00:13:02,451 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 3836 transitions. Word has length 59
[2022-02-09 00:13:02,451 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:02,452 INFO L470 AbstractCegarLoop]: Abstraction has 1877 states and 3836 transitions.
[2022-02-09 00:13:02,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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)
[2022-02-09 00:13:02,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 3836 transitions.
[2022-02-09 00:13:02,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2022-02-09 00:13:02,458 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:02,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:02,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-09 00:13:02,458 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:02,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:02,459 INFO L85 PathProgramCache]: Analyzing trace with hash 326788120, now seen corresponding path program 1 times
[2022-02-09 00:13:02,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:02,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683340943]
[2022-02-09 00:13:02,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:02,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:02,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:02,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:02,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683340943]
[2022-02-09 00:13:02,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683340943] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:02,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:02,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-09 00:13:02,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769336370]
[2022-02-09 00:13:02,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:02,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-09 00:13:02,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:02,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-09 00:13:02,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-02-09 00:13:02,614 INFO L87 Difference]: Start difference. First operand 1877 states and 3836 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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)
[2022-02-09 00:13:03,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:03,124 INFO L93 Difference]: Finished difference Result 5657 states and 11744 transitions.
[2022-02-09 00:13:03,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2022-02-09 00:13:03,125 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61
[2022-02-09 00:13:03,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:03,146 INFO L225 Difference]: With dead ends: 5657
[2022-02-09 00:13:03,146 INFO L226 Difference]: Without dead ends: 5657
[2022-02-09 00:13:03,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462
[2022-02-09 00:13:03,149 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 589 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:03,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 2121 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-02-09 00:13:03,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5657 states.
[2022-02-09 00:13:03,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5657 to 2135.
[2022-02-09 00:13:03,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2135 states, 2133 states have (on average 2.0595405532114395) internal successors, (4393), 2134 states have internal predecessors, (4393), 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)
[2022-02-09 00:13:03,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 4393 transitions.
[2022-02-09 00:13:03,223 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 4393 transitions. Word has length 61
[2022-02-09 00:13:03,224 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:03,224 INFO L470 AbstractCegarLoop]: Abstraction has 2135 states and 4393 transitions.
[2022-02-09 00:13:03,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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)
[2022-02-09 00:13:03,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 4393 transitions.
[2022-02-09 00:13:03,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2022-02-09 00:13:03,227 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:03,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:03,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-09 00:13:03,227 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:03,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:03,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1938685600, now seen corresponding path program 1 times
[2022-02-09 00:13:03,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:03,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158898520]
[2022-02-09 00:13:03,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:03,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:03,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:03,487 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:03,487 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158898520]
[2022-02-09 00:13:03,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158898520] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:03,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:03,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2022-02-09 00:13:03,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337711797]
[2022-02-09 00:13:03,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:03,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2022-02-09 00:13:03,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:03,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2022-02-09 00:13:03,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210
[2022-02-09 00:13:03,490 INFO L87 Difference]: Start difference. First operand 2135 states and 4393 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 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)
[2022-02-09 00:13:04,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:04,888 INFO L93 Difference]: Finished difference Result 6430 states and 13379 transitions.
[2022-02-09 00:13:04,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states.
[2022-02-09 00:13:04,889 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61
[2022-02-09 00:13:04,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:04,921 INFO L225 Difference]: With dead ends: 6430
[2022-02-09 00:13:04,922 INFO L226 Difference]: Without dead ends: 6430
[2022-02-09 00:13:04,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=589, Invalid=1861, Unknown=0, NotChecked=0, Total=2450
[2022-02-09 00:13:04,929 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 1547 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:04,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 2490 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-09 00:13:04,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6430 states.
[2022-02-09 00:13:05,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6430 to 3623.
[2022-02-09 00:13:05,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3623 states, 3621 states have (on average 2.0660038663352664) internal successors, (7481), 3622 states have internal predecessors, (7481), 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)
[2022-02-09 00:13:05,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3623 states to 3623 states and 7481 transitions.
[2022-02-09 00:13:05,079 INFO L78 Accepts]: Start accepts. Automaton has 3623 states and 7481 transitions. Word has length 61
[2022-02-09 00:13:05,079 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:05,079 INFO L470 AbstractCegarLoop]: Abstraction has 3623 states and 7481 transitions.
[2022-02-09 00:13:05,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 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)
[2022-02-09 00:13:05,080 INFO L276 IsEmpty]: Start isEmpty. Operand 3623 states and 7481 transitions.
[2022-02-09 00:13:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:05,085 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:05,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:05,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-09 00:13:05,086 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:05,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:05,087 INFO L85 PathProgramCache]: Analyzing trace with hash -432958387, now seen corresponding path program 1 times
[2022-02-09 00:13:05,087 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:05,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037405464]
[2022-02-09 00:13:05,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:05,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:05,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:05,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:05,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037405464]
[2022-02-09 00:13:05,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037405464] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:05,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:05,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20
[2022-02-09 00:13:05,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808758685]
[2022-02-09 00:13:05,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:05,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2022-02-09 00:13:05,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:05,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2022-02-09 00:13:05,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380
[2022-02-09 00:13:05,492 INFO L87 Difference]: Start difference. First operand 3623 states and 7481 transitions. Second operand has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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)
[2022-02-09 00:13:08,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:08,254 INFO L93 Difference]: Finished difference Result 8900 states and 18300 transitions.
[2022-02-09 00:13:08,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states.
[2022-02-09 00:13:08,254 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:08,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:08,285 INFO L225 Difference]: With dead ends: 8900
[2022-02-09 00:13:08,285 INFO L226 Difference]: Without dead ends: 8900
[2022-02-09 00:13:08,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1716 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1046, Invalid=4504, Unknown=0, NotChecked=0, Total=5550
[2022-02-09 00:13:08,287 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 3901 mSDsluCounter, 3876 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3901 SdHoareTripleChecker+Valid, 4325 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:08,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3901 Valid, 4325 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2022-02-09 00:13:08,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8900 states.
[2022-02-09 00:13:08,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8900 to 5530.
[2022-02-09 00:13:08,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5530 states, 5528 states have (on average 2.0759768451519536) internal successors, (11476), 5529 states have internal predecessors, (11476), 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)
[2022-02-09 00:13:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5530 states to 5530 states and 11476 transitions.
[2022-02-09 00:13:08,468 INFO L78 Accepts]: Start accepts. Automaton has 5530 states and 11476 transitions. Word has length 78
[2022-02-09 00:13:08,469 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:08,469 INFO L470 AbstractCegarLoop]: Abstraction has 5530 states and 11476 transitions.
[2022-02-09 00:13:08,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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)
[2022-02-09 00:13:08,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5530 states and 11476 transitions.
[2022-02-09 00:13:08,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:08,473 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:08,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:08,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-09 00:13:08,473 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:08,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:08,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1900567917, now seen corresponding path program 2 times
[2022-02-09 00:13:08,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:08,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67270813]
[2022-02-09 00:13:08,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:08,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:08,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:08,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67270813]
[2022-02-09 00:13:08,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67270813] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:08,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:08,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20
[2022-02-09 00:13:08,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259525004]
[2022-02-09 00:13:08,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:08,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2022-02-09 00:13:08,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:08,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2022-02-09 00:13:08,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380
[2022-02-09 00:13:08,790 INFO L87 Difference]: Start difference. First operand 5530 states and 11476 transitions. Second operand has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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)
[2022-02-09 00:13:11,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:11,996 INFO L93 Difference]: Finished difference Result 13090 states and 26982 transitions.
[2022-02-09 00:13:11,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states.
[2022-02-09 00:13:11,996 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:11,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:12,025 INFO L225 Difference]: With dead ends: 13090
[2022-02-09 00:13:12,025 INFO L226 Difference]: Without dead ends: 13090
[2022-02-09 00:13:12,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2724 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1449, Invalid=6561, Unknown=0, NotChecked=0, Total=8010
[2022-02-09 00:13:12,028 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 4458 mSDsluCounter, 4270 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4458 SdHoareTripleChecker+Valid, 4713 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:12,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4458 Valid, 4713 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2022-02-09 00:13:12,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13090 states.
[2022-02-09 00:13:12,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13090 to 5536.
[2022-02-09 00:13:12,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5536 states, 5534 states have (on average 2.0758944705457174) internal successors, (11488), 5535 states have internal predecessors, (11488), 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)
[2022-02-09 00:13:12,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5536 states to 5536 states and 11488 transitions.
[2022-02-09 00:13:12,228 INFO L78 Accepts]: Start accepts. Automaton has 5536 states and 11488 transitions. Word has length 78
[2022-02-09 00:13:12,229 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:12,229 INFO L470 AbstractCegarLoop]: Abstraction has 5536 states and 11488 transitions.
[2022-02-09 00:13:12,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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)
[2022-02-09 00:13:12,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5536 states and 11488 transitions.
[2022-02-09 00:13:12,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:12,233 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:12,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:12,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-09 00:13:12,233 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:12,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:12,234 INFO L85 PathProgramCache]: Analyzing trace with hash -2057331115, now seen corresponding path program 3 times
[2022-02-09 00:13:12,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:12,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144043887]
[2022-02-09 00:13:12,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:12,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:12,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:12,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:12,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144043887]
[2022-02-09 00:13:12,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144043887] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:12,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:12,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20
[2022-02-09 00:13:12,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042441101]
[2022-02-09 00:13:12,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:12,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2022-02-09 00:13:12,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:12,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2022-02-09 00:13:12,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380
[2022-02-09 00:13:12,525 INFO L87 Difference]: Start difference. First operand 5536 states and 11488 transitions. Second operand has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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)
[2022-02-09 00:13:15,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:15,550 INFO L93 Difference]: Finished difference Result 10751 states and 22152 transitions.
[2022-02-09 00:13:15,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states.
[2022-02-09 00:13:15,551 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:15,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:15,576 INFO L225 Difference]: With dead ends: 10751
[2022-02-09 00:13:15,576 INFO L226 Difference]: Without dead ends: 10751
[2022-02-09 00:13:15,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1922 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1227, Invalid=4935, Unknown=0, NotChecked=0, Total=6162
[2022-02-09 00:13:15,581 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 4107 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 3627 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:15,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4107 Valid, 3627 Invalid, 1244 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2022-02-09 00:13:15,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10751 states.
[2022-02-09 00:13:15,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10751 to 6059.
[2022-02-09 00:13:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6059 states, 6057 states have (on average 2.083209509658247) internal successors, (12618), 6058 states have internal predecessors, (12618), 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)
[2022-02-09 00:13:15,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6059 states to 6059 states and 12618 transitions.
[2022-02-09 00:13:15,786 INFO L78 Accepts]: Start accepts. Automaton has 6059 states and 12618 transitions. Word has length 78
[2022-02-09 00:13:15,786 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:15,786 INFO L470 AbstractCegarLoop]: Abstraction has 6059 states and 12618 transitions.
[2022-02-09 00:13:15,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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)
[2022-02-09 00:13:15,786 INFO L276 IsEmpty]: Start isEmpty. Operand 6059 states and 12618 transitions.
[2022-02-09 00:13:15,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:15,794 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:15,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:15,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-09 00:13:15,795 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:15,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:15,795 INFO L85 PathProgramCache]: Analyzing trace with hash -639973645, now seen corresponding path program 1 times
[2022-02-09 00:13:15,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:15,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547490953]
[2022-02-09 00:13:15,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:15,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:16,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:16,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547490953]
[2022-02-09 00:13:16,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547490953] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:16,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:16,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2022-02-09 00:13:16,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780148209]
[2022-02-09 00:13:16,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:16,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2022-02-09 00:13:16,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:16,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2022-02-09 00:13:16,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210
[2022-02-09 00:13:16,051 INFO L87 Difference]: Start difference. First operand 6059 states and 12618 transitions. Second operand has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 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)
[2022-02-09 00:13:19,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:19,207 INFO L93 Difference]: Finished difference Result 15036 states and 31402 transitions.
[2022-02-09 00:13:19,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states.
[2022-02-09 00:13:19,208 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:19,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:19,242 INFO L225 Difference]: With dead ends: 15036
[2022-02-09 00:13:19,242 INFO L226 Difference]: Without dead ends: 15036
[2022-02-09 00:13:19,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4516 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1974, Invalid=11136, Unknown=0, NotChecked=0, Total=13110
[2022-02-09 00:13:19,246 INFO L933 BasicCegarLoop]: 796 mSDtfsCounter, 1075 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 2745 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 6955 SdHoareTripleChecker+Invalid, 2770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:19,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1075 Valid, 6955 Invalid, 2770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2745 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2022-02-09 00:13:19,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15036 states.
[2022-02-09 00:13:19,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15036 to 6234.
[2022-02-09 00:13:19,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.087772785622593) internal successors, (13011), 6233 states have internal predecessors, (13011), 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)
[2022-02-09 00:13:19,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 13011 transitions.
[2022-02-09 00:13:19,435 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 13011 transitions. Word has length 78
[2022-02-09 00:13:19,435 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:19,436 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 13011 transitions.
[2022-02-09 00:13:19,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 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)
[2022-02-09 00:13:19,436 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 13011 transitions.
[2022-02-09 00:13:19,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:19,440 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:19,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:19,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-02-09 00:13:19,441 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:19,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:19,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1389519931, now seen corresponding path program 4 times
[2022-02-09 00:13:19,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:19,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213939390]
[2022-02-09 00:13:19,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:19,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:19,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:19,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:19,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213939390]
[2022-02-09 00:13:19,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213939390] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:19,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:19,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:19,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196643212]
[2022-02-09 00:13:19,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:19,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:19,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:19,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:19,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:19,611 INFO L87 Difference]: Start difference. First operand 6234 states and 13011 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:19,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:19,804 INFO L93 Difference]: Finished difference Result 8278 states and 17240 transitions.
[2022-02-09 00:13:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:19,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:19,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:19,818 INFO L225 Difference]: With dead ends: 8278
[2022-02-09 00:13:19,819 INFO L226 Difference]: Without dead ends: 8278
[2022-02-09 00:13:19,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:19,820 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 388 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:19,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 1065 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:19,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8278 states.
[2022-02-09 00:13:19,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8278 to 6575.
[2022-02-09 00:13:19,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6575 states, 6573 states have (on average 2.0827628175870987) internal successors, (13690), 6574 states have internal predecessors, (13690), 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)
[2022-02-09 00:13:19,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 13690 transitions.
[2022-02-09 00:13:19,980 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 13690 transitions. Word has length 78
[2022-02-09 00:13:19,980 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:19,980 INFO L470 AbstractCegarLoop]: Abstraction has 6575 states and 13690 transitions.
[2022-02-09 00:13:19,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 13690 transitions.
[2022-02-09 00:13:19,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:19,983 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:19,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:19,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-02-09 00:13:19,983 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:19,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash -230993537, now seen corresponding path program 2 times
[2022-02-09 00:13:19,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:19,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715414810]
[2022-02-09 00:13:19,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:19,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:20,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:20,192 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:20,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715414810]
[2022-02-09 00:13:20,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715414810] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:20,192 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:20,192 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-02-09 00:13:20,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471351645]
[2022-02-09 00:13:20,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:20,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-02-09 00:13:20,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:20,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-02-09 00:13:20,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2022-02-09 00:13:20,194 INFO L87 Difference]: Start difference. First operand 6575 states and 13690 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-09 00:13:23,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:23,154 INFO L93 Difference]: Finished difference Result 32822 states and 68435 transitions.
[2022-02-09 00:13:23,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states.
[2022-02-09 00:13:23,154 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:23,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:23,219 INFO L225 Difference]: With dead ends: 32822
[2022-02-09 00:13:23,220 INFO L226 Difference]: Without dead ends: 32822
[2022-02-09 00:13:23,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4202 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2129, Invalid=9643, Unknown=0, NotChecked=0, Total=11772
[2022-02-09 00:13:23,222 INFO L933 BasicCegarLoop]: 681 mSDtfsCounter, 1649 mSDsluCounter, 5316 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 5995 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:23,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1649 Valid, 5995 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2022-02-09 00:13:23,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32822 states.
[2022-02-09 00:13:23,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32822 to 6832.
[2022-02-09 00:13:23,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6832 states, 6830 states have (on average 2.0865300146412884) internal successors, (14251), 6831 states have internal predecessors, (14251), 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)
[2022-02-09 00:13:23,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 14251 transitions.
[2022-02-09 00:13:23,585 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 14251 transitions. Word has length 78
[2022-02-09 00:13:23,585 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:23,585 INFO L470 AbstractCegarLoop]: Abstraction has 6832 states and 14251 transitions.
[2022-02-09 00:13:23,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-09 00:13:23,585 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 14251 transitions.
[2022-02-09 00:13:23,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:23,589 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:23,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:23,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-02-09 00:13:23,589 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:23,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:23,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1798500039, now seen corresponding path program 5 times
[2022-02-09 00:13:23,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:23,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378539950]
[2022-02-09 00:13:23,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:23,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:23,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:23,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:23,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378539950]
[2022-02-09 00:13:23,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378539950] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:23,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:23,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:23,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581774023]
[2022-02-09 00:13:23,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:23,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:23,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:23,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:23,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:23,714 INFO L87 Difference]: Start difference. First operand 6832 states and 14251 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:23,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:23,957 INFO L93 Difference]: Finished difference Result 13224 states and 27405 transitions.
[2022-02-09 00:13:23,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:23,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:23,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:23,986 INFO L225 Difference]: With dead ends: 13224
[2022-02-09 00:13:23,987 INFO L226 Difference]: Without dead ends: 13224
[2022-02-09 00:13:23,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:23,988 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 587 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:23,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 1230 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:24,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13224 states.
[2022-02-09 00:13:24,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13224 to 6881.
[2022-02-09 00:13:24,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 6878 states have (on average 2.0754579819715033) internal successors, (14275), 6880 states have internal predecessors, (14275), 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)
[2022-02-09 00:13:24,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 14275 transitions.
[2022-02-09 00:13:24,134 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 14275 transitions. Word has length 78
[2022-02-09 00:13:24,134 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:24,134 INFO L470 AbstractCegarLoop]: Abstraction has 6881 states and 14275 transitions.
[2022-02-09 00:13:24,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:24,135 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 14275 transitions.
[2022-02-09 00:13:24,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:24,138 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:24,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:24,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-02-09 00:13:24,138 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:24,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:24,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1210081927, now seen corresponding path program 6 times
[2022-02-09 00:13:24,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:24,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309011141]
[2022-02-09 00:13:24,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:24,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:24,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:24,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:24,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309011141]
[2022-02-09 00:13:24,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309011141] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:24,240 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:24,240 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:24,240 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381352628]
[2022-02-09 00:13:24,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:24,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:24,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:24,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:24,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:24,242 INFO L87 Difference]: Start difference. First operand 6881 states and 14275 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:24,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:24,420 INFO L93 Difference]: Finished difference Result 11923 states and 24660 transitions.
[2022-02-09 00:13:24,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:24,420 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:24,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:24,506 INFO L225 Difference]: With dead ends: 11923
[2022-02-09 00:13:24,506 INFO L226 Difference]: Without dead ends: 11923
[2022-02-09 00:13:24,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:24,507 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 386 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:24,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1048 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:24,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11923 states.
[2022-02-09 00:13:24,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11923 to 6881.
[2022-02-09 00:13:24,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 6878 states have (on average 2.0754579819715033) internal successors, (14275), 6880 states have internal predecessors, (14275), 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)
[2022-02-09 00:13:24,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 14275 transitions.
[2022-02-09 00:13:24,615 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 14275 transitions. Word has length 78
[2022-02-09 00:13:24,615 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:24,615 INFO L470 AbstractCegarLoop]: Abstraction has 6881 states and 14275 transitions.
[2022-02-09 00:13:24,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:24,616 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 14275 transitions.
[2022-02-09 00:13:24,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:24,619 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:24,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:24,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2022-02-09 00:13:24,619 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:24,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:24,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1470511061, now seen corresponding path program 3 times
[2022-02-09 00:13:24,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:24,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954278068]
[2022-02-09 00:13:24,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:24,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:24,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:24,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:24,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954278068]
[2022-02-09 00:13:24,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954278068] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:24,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:24,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-02-09 00:13:24,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341927418]
[2022-02-09 00:13:24,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:24,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-02-09 00:13:24,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:24,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-02-09 00:13:24,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2022-02-09 00:13:24,795 INFO L87 Difference]: Start difference. First operand 6881 states and 14275 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-09 00:13:27,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:27,925 INFO L93 Difference]: Finished difference Result 46267 states and 96712 transitions.
[2022-02-09 00:13:27,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states.
[2022-02-09 00:13:27,926 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:27,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:28,052 INFO L225 Difference]: With dead ends: 46267
[2022-02-09 00:13:28,053 INFO L226 Difference]: Without dead ends: 46267
[2022-02-09 00:13:28,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3963 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2137, Invalid=9205, Unknown=0, NotChecked=0, Total=11342
[2022-02-09 00:13:28,056 INFO L933 BasicCegarLoop]: 732 mSDtfsCounter, 1440 mSDsluCounter, 6551 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 7282 SdHoareTripleChecker+Invalid, 2521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:28,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 7282 Invalid, 2521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2022-02-09 00:13:28,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46267 states.
[2022-02-09 00:13:28,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46267 to 7282.
[2022-02-09 00:13:28,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7282 states, 7279 states have (on average 2.0839401016623165) internal successors, (15169), 7281 states have internal predecessors, (15169), 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)
[2022-02-09 00:13:28,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7282 states to 7282 states and 15169 transitions.
[2022-02-09 00:13:28,689 INFO L78 Accepts]: Start accepts. Automaton has 7282 states and 15169 transitions. Word has length 78
[2022-02-09 00:13:28,690 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:28,690 INFO L470 AbstractCegarLoop]: Abstraction has 7282 states and 15169 transitions.
[2022-02-09 00:13:28,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-09 00:13:28,690 INFO L276 IsEmpty]: Start isEmpty. Operand 7282 states and 15169 transitions.
[2022-02-09 00:13:28,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:28,695 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:28,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:28,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2022-02-09 00:13:28,696 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:28,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:28,697 INFO L85 PathProgramCache]: Analyzing trace with hash -794962659, now seen corresponding path program 7 times
[2022-02-09 00:13:28,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:28,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092911537]
[2022-02-09 00:13:28,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:28,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:28,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:28,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092911537]
[2022-02-09 00:13:28,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092911537] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:28,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:28,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:28,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429119811]
[2022-02-09 00:13:28,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:28,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:28,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:28,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:28,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:28,807 INFO L87 Difference]: Start difference. First operand 7282 states and 15169 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:29,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:29,113 INFO L93 Difference]: Finished difference Result 22479 states and 46559 transitions.
[2022-02-09 00:13:29,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:29,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:29,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:29,164 INFO L225 Difference]: With dead ends: 22479
[2022-02-09 00:13:29,164 INFO L226 Difference]: Without dead ends: 22479
[2022-02-09 00:13:29,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:29,165 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 653 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:29,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [653 Valid, 1096 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:29,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22479 states.
[2022-02-09 00:13:29,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22479 to 7257.
[2022-02-09 00:13:29,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7257 states, 7254 states have (on average 2.0818858560794045) internal successors, (15102), 7256 states have internal predecessors, (15102), 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)
[2022-02-09 00:13:29,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7257 states to 7257 states and 15102 transitions.
[2022-02-09 00:13:29,554 INFO L78 Accepts]: Start accepts. Automaton has 7257 states and 15102 transitions. Word has length 78
[2022-02-09 00:13:29,554 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:29,554 INFO L470 AbstractCegarLoop]: Abstraction has 7257 states and 15102 transitions.
[2022-02-09 00:13:29,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:29,555 INFO L276 IsEmpty]: Start isEmpty. Operand 7257 states and 15102 transitions.
[2022-02-09 00:13:29,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:29,568 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:29,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:29,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2022-02-09 00:13:29,569 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:29,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:29,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1383380771, now seen corresponding path program 8 times
[2022-02-09 00:13:29,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:29,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328092735]
[2022-02-09 00:13:29,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:29,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:29,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:29,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:29,741 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328092735]
[2022-02-09 00:13:29,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328092735] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:29,741 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:29,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:29,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013694944]
[2022-02-09 00:13:29,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:29,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:29,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:29,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:29,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:29,743 INFO L87 Difference]: Start difference. First operand 7257 states and 15102 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:29,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:29,986 INFO L93 Difference]: Finished difference Result 17765 states and 36818 transitions.
[2022-02-09 00:13:29,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:29,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:29,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:30,026 INFO L225 Difference]: With dead ends: 17765
[2022-02-09 00:13:30,027 INFO L226 Difference]: Without dead ends: 17765
[2022-02-09 00:13:30,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:30,028 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 446 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:30,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 1151 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:30,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17765 states.
[2022-02-09 00:13:30,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17765 to 7164.
[2022-02-09 00:13:30,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7164 states, 7161 states have (on average 2.079318530931434) internal successors, (14890), 7163 states have internal predecessors, (14890), 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)
[2022-02-09 00:13:30,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7164 states to 7164 states and 14890 transitions.
[2022-02-09 00:13:30,367 INFO L78 Accepts]: Start accepts. Automaton has 7164 states and 14890 transitions. Word has length 78
[2022-02-09 00:13:30,367 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:30,367 INFO L470 AbstractCegarLoop]: Abstraction has 7164 states and 14890 transitions.
[2022-02-09 00:13:30,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 7164 states and 14890 transitions.
[2022-02-09 00:13:30,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:30,371 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:30,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:30,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2022-02-09 00:13:30,372 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:30,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:30,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1994881031, now seen corresponding path program 4 times
[2022-02-09 00:13:30,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:30,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620816480]
[2022-02-09 00:13:30,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:30,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:30,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:30,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620816480]
[2022-02-09 00:13:30,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620816480] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:30,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:30,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-02-09 00:13:30,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155401195]
[2022-02-09 00:13:30,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:30,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-02-09 00:13:30,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:30,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-02-09 00:13:30,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240
[2022-02-09 00:13:30,628 INFO L87 Difference]: Start difference. First operand 7164 states and 14890 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-09 00:13:34,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:34,220 INFO L93 Difference]: Finished difference Result 35183 states and 73664 transitions.
[2022-02-09 00:13:34,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states.
[2022-02-09 00:13:34,221 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:34,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:34,350 INFO L225 Difference]: With dead ends: 35183
[2022-02-09 00:13:34,350 INFO L226 Difference]: Without dead ends: 35183
[2022-02-09 00:13:34,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2865 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1874, Invalid=7246, Unknown=0, NotChecked=0, Total=9120
[2022-02-09 00:13:34,351 INFO L933 BasicCegarLoop]: 737 mSDtfsCounter, 1287 mSDsluCounter, 5017 mSDsCounter, 0 mSdLazyCounter, 1966 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 5753 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:34,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1287 Valid, 5753 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1966 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2022-02-09 00:13:34,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35183 states.
[2022-02-09 00:13:34,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35183 to 8219.
[2022-02-09 00:13:34,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8219 states, 8216 states have (on average 2.0978578383641673) internal successors, (17236), 8218 states have internal predecessors, (17236), 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)
[2022-02-09 00:13:34,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8219 states to 8219 states and 17236 transitions.
[2022-02-09 00:13:34,743 INFO L78 Accepts]: Start accepts. Automaton has 8219 states and 17236 transitions. Word has length 78
[2022-02-09 00:13:34,743 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:34,743 INFO L470 AbstractCegarLoop]: Abstraction has 8219 states and 17236 transitions.
[2022-02-09 00:13:34,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-09 00:13:34,743 INFO L276 IsEmpty]: Start isEmpty. Operand 8219 states and 17236 transitions.
[2022-02-09 00:13:34,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:34,747 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:34,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:34,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2022-02-09 00:13:34,747 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:34,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:34,748 INFO L85 PathProgramCache]: Analyzing trace with hash 34612545, now seen corresponding path program 9 times
[2022-02-09 00:13:34,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:34,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000505922]
[2022-02-09 00:13:34,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:34,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:34,853 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:34,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000505922]
[2022-02-09 00:13:34,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000505922] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:34,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:34,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:34,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153099133]
[2022-02-09 00:13:34,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:34,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:34,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:34,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:34,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:34,856 INFO L87 Difference]: Start difference. First operand 8219 states and 17236 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:35,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:35,107 INFO L93 Difference]: Finished difference Result 17751 states and 36797 transitions.
[2022-02-09 00:13:35,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:35,108 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:35,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:35,144 INFO L225 Difference]: With dead ends: 17751
[2022-02-09 00:13:35,144 INFO L226 Difference]: Without dead ends: 17751
[2022-02-09 00:13:35,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:35,145 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 524 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:35,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [524 Valid, 1261 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:35,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17751 states.
[2022-02-09 00:13:35,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17751 to 8195.
[2022-02-09 00:13:35,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8195 states, 8192 states have (on average 2.097900390625) internal successors, (17186), 8194 states have internal predecessors, (17186), 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)
[2022-02-09 00:13:35,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8195 states to 8195 states and 17186 transitions.
[2022-02-09 00:13:35,381 INFO L78 Accepts]: Start accepts. Automaton has 8195 states and 17186 transitions. Word has length 78
[2022-02-09 00:13:35,382 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:35,382 INFO L470 AbstractCegarLoop]: Abstraction has 8195 states and 17186 transitions.
[2022-02-09 00:13:35,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:35,382 INFO L276 IsEmpty]: Start isEmpty. Operand 8195 states and 17186 transitions.
[2022-02-09 00:13:35,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:35,385 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:35,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:35,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2022-02-09 00:13:35,386 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:35,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:35,387 INFO L85 PathProgramCache]: Analyzing trace with hash 642429283, now seen corresponding path program 10 times
[2022-02-09 00:13:35,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:35,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331599332]
[2022-02-09 00:13:35,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:35,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:35,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:35,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:35,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331599332]
[2022-02-09 00:13:35,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331599332] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:35,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:35,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:35,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557026626]
[2022-02-09 00:13:35,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:35,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:35,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:35,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:35,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:35,490 INFO L87 Difference]: Start difference. First operand 8195 states and 17186 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:35,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:35,705 INFO L93 Difference]: Finished difference Result 14050 states and 29137 transitions.
[2022-02-09 00:13:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:35,705 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:35,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:35,733 INFO L225 Difference]: With dead ends: 14050
[2022-02-09 00:13:35,733 INFO L226 Difference]: Without dead ends: 14050
[2022-02-09 00:13:35,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:35,734 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 549 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:35,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 1052 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:35,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14050 states.
[2022-02-09 00:13:35,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14050 to 9098.
[2022-02-09 00:13:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9098 states, 9095 states have (on average 2.102363936228697) internal successors, (19121), 9097 states have internal predecessors, (19121), 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)
[2022-02-09 00:13:35,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9098 states to 9098 states and 19121 transitions.
[2022-02-09 00:13:35,932 INFO L78 Accepts]: Start accepts. Automaton has 9098 states and 19121 transitions. Word has length 78
[2022-02-09 00:13:35,932 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:35,932 INFO L470 AbstractCegarLoop]: Abstraction has 9098 states and 19121 transitions.
[2022-02-09 00:13:35,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:35,933 INFO L276 IsEmpty]: Start isEmpty. Operand 9098 states and 19121 transitions.
[2022-02-09 00:13:35,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:35,936 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:35,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:35,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2022-02-09 00:13:35,937 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:35,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:35,937 INFO L85 PathProgramCache]: Analyzing trace with hash -655223041, now seen corresponding path program 5 times
[2022-02-09 00:13:35,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:35,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370795775]
[2022-02-09 00:13:35,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:35,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:36,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:36,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370795775]
[2022-02-09 00:13:36,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370795775] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:36,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:36,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-02-09 00:13:36,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908879218]
[2022-02-09 00:13:36,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:36,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-02-09 00:13:36,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:36,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-02-09 00:13:36,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2022-02-09 00:13:36,145 INFO L87 Difference]: Start difference. First operand 9098 states and 19121 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-09 00:13:39,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:39,181 INFO L93 Difference]: Finished difference Result 42338 states and 88537 transitions.
[2022-02-09 00:13:39,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states.
[2022-02-09 00:13:39,182 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:39,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:39,261 INFO L225 Difference]: With dead ends: 42338
[2022-02-09 00:13:39,262 INFO L226 Difference]: Without dead ends: 42338
[2022-02-09 00:13:39,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3907 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2137, Invalid=9205, Unknown=0, NotChecked=0, Total=11342
[2022-02-09 00:13:39,263 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 1392 mSDsluCounter, 5329 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 6063 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:39,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1392 Valid, 6063 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2022-02-09 00:13:39,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42338 states.
[2022-02-09 00:13:39,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42338 to 9356.
[2022-02-09 00:13:39,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9356 states, 9353 states have (on average 2.106382978723404) internal successors, (19701), 9355 states have internal predecessors, (19701), 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)
[2022-02-09 00:13:39,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9356 states to 9356 states and 19701 transitions.
[2022-02-09 00:13:39,635 INFO L78 Accepts]: Start accepts. Automaton has 9356 states and 19701 transitions. Word has length 78
[2022-02-09 00:13:39,636 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:39,636 INFO L470 AbstractCegarLoop]: Abstraction has 9356 states and 19701 transitions.
[2022-02-09 00:13:39,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-09 00:13:39,636 INFO L276 IsEmpty]: Start isEmpty. Operand 9356 states and 19701 transitions.
[2022-02-09 00:13:39,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:39,638 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:39,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:39,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2022-02-09 00:13:39,639 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:39,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:39,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1374270535, now seen corresponding path program 11 times
[2022-02-09 00:13:39,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:39,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822136906]
[2022-02-09 00:13:39,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:39,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:39,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:39,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:39,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822136906]
[2022-02-09 00:13:39,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822136906] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:39,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:39,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:39,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447875657]
[2022-02-09 00:13:39,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:39,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:39,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:39,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:39,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:39,714 INFO L87 Difference]: Start difference. First operand 9356 states and 19701 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:40,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:40,072 INFO L93 Difference]: Finished difference Result 19573 states and 40679 transitions.
[2022-02-09 00:13:40,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:40,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:40,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:40,107 INFO L225 Difference]: With dead ends: 19573
[2022-02-09 00:13:40,107 INFO L226 Difference]: Without dead ends: 19573
[2022-02-09 00:13:40,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:40,108 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 506 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:40,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 1263 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-02-09 00:13:40,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19573 states.
[2022-02-09 00:13:40,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19573 to 9370.
[2022-02-09 00:13:40,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9370 states, 9367 states have (on average 2.103448275862069) internal successors, (19703), 9369 states have internal predecessors, (19703), 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)
[2022-02-09 00:13:40,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9370 states to 9370 states and 19703 transitions.
[2022-02-09 00:13:40,298 INFO L78 Accepts]: Start accepts. Automaton has 9370 states and 19703 transitions. Word has length 78
[2022-02-09 00:13:40,298 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:40,298 INFO L470 AbstractCegarLoop]: Abstraction has 9370 states and 19703 transitions.
[2022-02-09 00:13:40,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:40,298 INFO L276 IsEmpty]: Start isEmpty. Operand 9370 states and 19703 transitions.
[2022-02-09 00:13:40,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:40,301 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:40,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:40,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2022-02-09 00:13:40,302 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:40,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:40,302 INFO L85 PathProgramCache]: Analyzing trace with hash 785852423, now seen corresponding path program 12 times
[2022-02-09 00:13:40,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:40,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722316286]
[2022-02-09 00:13:40,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:40,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:40,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:40,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722316286]
[2022-02-09 00:13:40,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722316286] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:40,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:40,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:40,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465402072]
[2022-02-09 00:13:40,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:40,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:40,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:40,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:40,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:40,412 INFO L87 Difference]: Start difference. First operand 9370 states and 19703 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:40,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:40,592 INFO L93 Difference]: Finished difference Result 13098 states and 27206 transitions.
[2022-02-09 00:13:40,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:40,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:40,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:40,614 INFO L225 Difference]: With dead ends: 13098
[2022-02-09 00:13:40,614 INFO L226 Difference]: Without dead ends: 13098
[2022-02-09 00:13:40,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:40,615 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 380 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:40,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 1270 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:40,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13098 states.
[2022-02-09 00:13:40,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13098 to 9142.
[2022-02-09 00:13:40,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9142 states, 9139 states have (on average 2.0995732574679944) internal successors, (19188), 9141 states have internal predecessors, (19188), 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)
[2022-02-09 00:13:40,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9142 states to 9142 states and 19188 transitions.
[2022-02-09 00:13:40,781 INFO L78 Accepts]: Start accepts. Automaton has 9142 states and 19188 transitions. Word has length 78
[2022-02-09 00:13:40,781 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:40,781 INFO L470 AbstractCegarLoop]: Abstraction has 9142 states and 19188 transitions.
[2022-02-09 00:13:40,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 9142 states and 19188 transitions.
[2022-02-09 00:13:40,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:40,784 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:40,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:40,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2022-02-09 00:13:40,785 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:40,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:40,785 INFO L85 PathProgramCache]: Analyzing trace with hash 174352163, now seen corresponding path program 6 times
[2022-02-09 00:13:40,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:40,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839205215]
[2022-02-09 00:13:40,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:40,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:40,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:40,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:40,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839205215]
[2022-02-09 00:13:40,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839205215] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:40,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:40,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-02-09 00:13:40,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384457789]
[2022-02-09 00:13:40,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:40,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-02-09 00:13:40,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:40,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-02-09 00:13:40,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240
[2022-02-09 00:13:40,989 INFO L87 Difference]: Start difference. First operand 9142 states and 19188 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-09 00:13:44,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:44,363 INFO L93 Difference]: Finished difference Result 45515 states and 95261 transitions.
[2022-02-09 00:13:44,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states.
[2022-02-09 00:13:44,364 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:44,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:44,437 INFO L225 Difference]: With dead ends: 45515
[2022-02-09 00:13:44,437 INFO L226 Difference]: Without dead ends: 45515
[2022-02-09 00:13:44,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2801 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1874, Invalid=7246, Unknown=0, NotChecked=0, Total=9120
[2022-02-09 00:13:44,438 INFO L933 BasicCegarLoop]: 778 mSDtfsCounter, 1180 mSDsluCounter, 6158 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 6936 SdHoareTripleChecker+Invalid, 2457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:44,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1180 Valid, 6936 Invalid, 2457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2022-02-09 00:13:44,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45515 states.
[2022-02-09 00:13:44,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45515 to 9322.
[2022-02-09 00:13:44,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9322 states, 9319 states have (on average 2.0995815001609617) internal successors, (19566), 9321 states have internal predecessors, (19566), 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)
[2022-02-09 00:13:44,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9322 states to 9322 states and 19566 transitions.
[2022-02-09 00:13:44,805 INFO L78 Accepts]: Start accepts. Automaton has 9322 states and 19566 transitions. Word has length 78
[2022-02-09 00:13:44,805 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:44,805 INFO L470 AbstractCegarLoop]: Abstraction has 9322 states and 19566 transitions.
[2022-02-09 00:13:44,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-09 00:13:44,806 INFO L276 IsEmpty]: Start isEmpty. Operand 9322 states and 19566 transitions.
[2022-02-09 00:13:44,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:44,809 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:44,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:44,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2022-02-09 00:13:44,809 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:44,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:44,810 INFO L85 PathProgramCache]: Analyzing trace with hash -2091121557, now seen corresponding path program 13 times
[2022-02-09 00:13:44,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:44,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822245025]
[2022-02-09 00:13:44,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:44,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:44,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:44,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822245025]
[2022-02-09 00:13:44,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822245025] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:44,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:44,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:44,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875182724]
[2022-02-09 00:13:44,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:44,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:44,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:44,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:44,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:44,916 INFO L87 Difference]: Start difference. First operand 9322 states and 19566 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:45,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:45,161 INFO L93 Difference]: Finished difference Result 23356 states and 48220 transitions.
[2022-02-09 00:13:45,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:45,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:45,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:45,210 INFO L225 Difference]: With dead ends: 23356
[2022-02-09 00:13:45,210 INFO L226 Difference]: Without dead ends: 23356
[2022-02-09 00:13:45,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:45,212 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 559 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:45,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 1292 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:45,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23356 states.
[2022-02-09 00:13:45,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23356 to 9258.
[2022-02-09 00:13:45,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9258 states, 9255 states have (on average 2.099837925445705) internal successors, (19434), 9257 states have internal predecessors, (19434), 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)
[2022-02-09 00:13:45,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9258 states to 9258 states and 19434 transitions.
[2022-02-09 00:13:45,444 INFO L78 Accepts]: Start accepts. Automaton has 9258 states and 19434 transitions. Word has length 78
[2022-02-09 00:13:45,444 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:45,444 INFO L470 AbstractCegarLoop]: Abstraction has 9258 states and 19434 transitions.
[2022-02-09 00:13:45,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:45,444 INFO L276 IsEmpty]: Start isEmpty. Operand 9258 states and 19434 transitions.
[2022-02-09 00:13:45,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:45,447 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:45,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:45,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2022-02-09 00:13:45,447 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:45,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:45,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1483304819, now seen corresponding path program 14 times
[2022-02-09 00:13:45,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:45,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263435118]
[2022-02-09 00:13:45,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:45,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:45,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:45,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:45,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263435118]
[2022-02-09 00:13:45,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263435118] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:45,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:45,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:45,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324690917]
[2022-02-09 00:13:45,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:45,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:45,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:45,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:45,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:45,546 INFO L87 Difference]: Start difference. First operand 9258 states and 19434 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:45,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:45,918 INFO L93 Difference]: Finished difference Result 18644 states and 38505 transitions.
[2022-02-09 00:13:45,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:45,919 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:45,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:45,965 INFO L225 Difference]: With dead ends: 18644
[2022-02-09 00:13:45,965 INFO L226 Difference]: Without dead ends: 18644
[2022-02-09 00:13:45,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:45,967 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 480 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:45,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 1270 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:45,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18644 states.
[2022-02-09 00:13:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18644 to 8909.
[2022-02-09 00:13:46,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8909 states, 8906 states have (on average 2.103188861441725) internal successors, (18731), 8908 states have internal predecessors, (18731), 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)
[2022-02-09 00:13:46,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8909 states to 8909 states and 18731 transitions.
[2022-02-09 00:13:46,278 INFO L78 Accepts]: Start accepts. Automaton has 8909 states and 18731 transitions. Word has length 78
[2022-02-09 00:13:46,278 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:46,278 INFO L470 AbstractCegarLoop]: Abstraction has 8909 states and 18731 transitions.
[2022-02-09 00:13:46,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:46,279 INFO L276 IsEmpty]: Start isEmpty. Operand 8909 states and 18731 transitions.
[2022-02-09 00:13:46,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:46,283 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:46,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:46,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2022-02-09 00:13:46,283 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:46,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:46,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1269523329, now seen corresponding path program 7 times
[2022-02-09 00:13:46,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:46,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962772138]
[2022-02-09 00:13:46,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:46,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:46,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:46,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962772138]
[2022-02-09 00:13:46,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962772138] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:46,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:46,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-02-09 00:13:46,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257663577]
[2022-02-09 00:13:46,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:46,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-02-09 00:13:46,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:46,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-02-09 00:13:46,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240
[2022-02-09 00:13:46,507 INFO L87 Difference]: Start difference. First operand 8909 states and 18731 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-09 00:13:50,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:50,305 INFO L93 Difference]: Finished difference Result 33119 states and 69705 transitions.
[2022-02-09 00:13:50,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states.
[2022-02-09 00:13:50,305 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:50,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:50,387 INFO L225 Difference]: With dead ends: 33119
[2022-02-09 00:13:50,387 INFO L226 Difference]: Without dead ends: 33119
[2022-02-09 00:13:50,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2895 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1905, Invalid=7407, Unknown=0, NotChecked=0, Total=9312
[2022-02-09 00:13:50,390 INFO L933 BasicCegarLoop]: 751 mSDtfsCounter, 1159 mSDsluCounter, 5643 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 6394 SdHoareTripleChecker+Invalid, 2347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:50,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1159 Valid, 6394 Invalid, 2347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2022-02-09 00:13:50,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33119 states.
[2022-02-09 00:13:50,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33119 to 7895.
[2022-02-09 00:13:50,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7895 states, 7892 states have (on average 2.087430309173847) internal successors, (16474), 7894 states have internal predecessors, (16474), 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)
[2022-02-09 00:13:50,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7895 states to 7895 states and 16474 transitions.
[2022-02-09 00:13:50,786 INFO L78 Accepts]: Start accepts. Automaton has 7895 states and 16474 transitions. Word has length 78
[2022-02-09 00:13:50,786 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:50,786 INFO L470 AbstractCegarLoop]: Abstraction has 7895 states and 16474 transitions.
[2022-02-09 00:13:50,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-09 00:13:50,786 INFO L276 IsEmpty]: Start isEmpty. Operand 7895 states and 16474 transitions.
[2022-02-09 00:13:50,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:50,790 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:50,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:50,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2022-02-09 00:13:50,790 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:50,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:50,791 INFO L85 PathProgramCache]: Analyzing trace with hash 759970247, now seen corresponding path program 15 times
[2022-02-09 00:13:50,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:50,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777402923]
[2022-02-09 00:13:50,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:50,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:50,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:50,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:50,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777402923]
[2022-02-09 00:13:50,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777402923] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:50,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:50,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:50,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421777351]
[2022-02-09 00:13:50,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:50,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:50,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:50,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:50,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:50,902 INFO L87 Difference]: Start difference. First operand 7895 states and 16474 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:51,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:51,187 INFO L93 Difference]: Finished difference Result 15260 states and 31594 transitions.
[2022-02-09 00:13:51,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:51,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:51,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:51,221 INFO L225 Difference]: With dead ends: 15260
[2022-02-09 00:13:51,222 INFO L226 Difference]: Without dead ends: 15260
[2022-02-09 00:13:51,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:51,222 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 480 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:51,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 1137 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:51,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15260 states.
[2022-02-09 00:13:51,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15260 to 7887.
[2022-02-09 00:13:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7887 states, 7884 states have (on average 2.084348046676814) internal successors, (16433), 7886 states have internal predecessors, (16433), 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)
[2022-02-09 00:13:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7887 states to 7887 states and 16433 transitions.
[2022-02-09 00:13:51,402 INFO L78 Accepts]: Start accepts. Automaton has 7887 states and 16433 transitions. Word has length 78
[2022-02-09 00:13:51,402 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:51,403 INFO L470 AbstractCegarLoop]: Abstraction has 7887 states and 16433 transitions.
[2022-02-09 00:13:51,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:51,403 INFO L276 IsEmpty]: Start isEmpty. Operand 7887 states and 16433 transitions.
[2022-02-09 00:13:51,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:51,406 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:51,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:51,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2022-02-09 00:13:51,407 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:51,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:51,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1367786985, now seen corresponding path program 16 times
[2022-02-09 00:13:51,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:51,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553170542]
[2022-02-09 00:13:51,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:51,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:51,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:51,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:51,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553170542]
[2022-02-09 00:13:51,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553170542] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:51,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:51,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:51,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770228727]
[2022-02-09 00:13:51,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:51,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:51,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:51,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:51,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:51,516 INFO L87 Difference]: Start difference. First operand 7887 states and 16433 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:51,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:51,740 INFO L93 Difference]: Finished difference Result 15277 states and 31545 transitions.
[2022-02-09 00:13:51,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:51,740 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:51,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:51,775 INFO L225 Difference]: With dead ends: 15277
[2022-02-09 00:13:51,775 INFO L226 Difference]: Without dead ends: 15277
[2022-02-09 00:13:51,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:51,776 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 419 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:51,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 977 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:51,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15277 states.
[2022-02-09 00:13:51,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15277 to 7769.
[2022-02-09 00:13:51,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7769 states, 7766 states have (on average 2.087818696883853) internal successors, (16214), 7768 states have internal predecessors, (16214), 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)
[2022-02-09 00:13:51,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7769 states to 7769 states and 16214 transitions.
[2022-02-09 00:13:51,971 INFO L78 Accepts]: Start accepts. Automaton has 7769 states and 16214 transitions. Word has length 78
[2022-02-09 00:13:51,971 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:51,971 INFO L470 AbstractCegarLoop]: Abstraction has 7769 states and 16214 transitions.
[2022-02-09 00:13:51,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:51,971 INFO L276 IsEmpty]: Start isEmpty. Operand 7769 states and 16214 transitions.
[2022-02-09 00:13:51,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-09 00:13:51,975 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:51,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:51,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2022-02-09 00:13:51,975 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:51,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:51,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1877525063, now seen corresponding path program 17 times
[2022-02-09 00:13:51,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:51,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530414552]
[2022-02-09 00:13:51,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:51,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:52,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:52,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:52,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530414552]
[2022-02-09 00:13:52,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530414552] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:52,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:52,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-09 00:13:52,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854020766]
[2022-02-09 00:13:52,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:52,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-09 00:13:52,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:52,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-09 00:13:52,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2022-02-09 00:13:52,080 INFO L87 Difference]: Start difference. First operand 7769 states and 16214 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:52,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:52,272 INFO L93 Difference]: Finished difference Result 4518 states and 9036 transitions.
[2022-02-09 00:13:52,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-09 00:13:52,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2022-02-09 00:13:52,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:52,280 INFO L225 Difference]: With dead ends: 4518
[2022-02-09 00:13:52,281 INFO L226 Difference]: Without dead ends: 4518
[2022-02-09 00:13:52,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132
[2022-02-09 00:13:52,282 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 369 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:52,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 884 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-09 00:13:52,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states.
[2022-02-09 00:13:52,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 3350.
[2022-02-09 00:13:52,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3348 states have (on average 2.0074671445639187) internal successors, (6721), 3349 states have internal predecessors, (6721), 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)
[2022-02-09 00:13:52,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 6721 transitions.
[2022-02-09 00:13:52,343 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 6721 transitions. Word has length 78
[2022-02-09 00:13:52,344 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:52,344 INFO L470 AbstractCegarLoop]: Abstraction has 3350 states and 6721 transitions.
[2022-02-09 00:13:52,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-09 00:13:52,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 6721 transitions.
[2022-02-09 00:13:52,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:13:52,347 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:52,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:52,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2022-02-09 00:13:52,348 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:52,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:52,348 INFO L85 PathProgramCache]: Analyzing trace with hash 185879758, now seen corresponding path program 1 times
[2022-02-09 00:13:52,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:52,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489527199]
[2022-02-09 00:13:52,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:52,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:52,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:52,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:52,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489527199]
[2022-02-09 00:13:52,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489527199] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:52,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:52,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:13:52,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126640707]
[2022-02-09 00:13:52,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:52,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:13:52,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:52,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:13:52,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:13:52,668 INFO L87 Difference]: Start difference. First operand 3350 states and 6721 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:13:54,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:54,164 INFO L93 Difference]: Finished difference Result 5553 states and 11161 transitions.
[2022-02-09 00:13:54,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states.
[2022-02-09 00:13:54,164 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:13:54,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:54,170 INFO L225 Difference]: With dead ends: 5553
[2022-02-09 00:13:54,170 INFO L226 Difference]: Without dead ends: 5553
[2022-02-09 00:13:54,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=581, Invalid=2499, Unknown=0, NotChecked=0, Total=3080
[2022-02-09 00:13:54,172 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 1602 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:54,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1602 Valid, 3268 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-09 00:13:54,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states.
[2022-02-09 00:13:54,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 3355.
[2022-02-09 00:13:54,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3353 states have (on average 2.0071577691619447) internal successors, (6730), 3354 states have internal predecessors, (6730), 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)
[2022-02-09 00:13:54,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 6730 transitions.
[2022-02-09 00:13:54,215 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 6730 transitions. Word has length 81
[2022-02-09 00:13:54,216 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:54,216 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 6730 transitions.
[2022-02-09 00:13:54,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:13:54,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 6730 transitions.
[2022-02-09 00:13:54,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:13:54,218 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:54,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:54,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2022-02-09 00:13:54,218 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:54,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:54,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1324480462, now seen corresponding path program 2 times
[2022-02-09 00:13:54,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:54,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625816850]
[2022-02-09 00:13:54,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:54,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:54,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:54,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:54,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625816850]
[2022-02-09 00:13:54,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625816850] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:54,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:54,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:13:54,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109191060]
[2022-02-09 00:13:54,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:54,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:13:54,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:54,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:13:54,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:13:54,451 INFO L87 Difference]: Start difference. First operand 3355 states and 6730 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:13:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:55,990 INFO L93 Difference]: Finished difference Result 6169 states and 12402 transitions.
[2022-02-09 00:13:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states.
[2022-02-09 00:13:55,990 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:13:55,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:55,999 INFO L225 Difference]: With dead ends: 6169
[2022-02-09 00:13:56,000 INFO L226 Difference]: Without dead ends: 6169
[2022-02-09 00:13:56,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=563, Invalid=2517, Unknown=0, NotChecked=0, Total=3080
[2022-02-09 00:13:56,001 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 1628 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:56,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1628 Valid, 3633 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-09 00:13:56,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states.
[2022-02-09 00:13:56,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 3406.
[2022-02-09 00:13:56,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3404 states have (on average 2.0079318448883665) internal successors, (6835), 3405 states have internal predecessors, (6835), 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)
[2022-02-09 00:13:56,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 6835 transitions.
[2022-02-09 00:13:56,073 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 6835 transitions. Word has length 81
[2022-02-09 00:13:56,073 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:56,074 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 6835 transitions.
[2022-02-09 00:13:56,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:13:56,074 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 6835 transitions.
[2022-02-09 00:13:56,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:13:56,076 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:56,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:56,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2022-02-09 00:13:56,076 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:56,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:56,078 INFO L85 PathProgramCache]: Analyzing trace with hash -178500404, now seen corresponding path program 3 times
[2022-02-09 00:13:56,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:56,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620821614]
[2022-02-09 00:13:56,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:56,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:56,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:56,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:56,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620821614]
[2022-02-09 00:13:56,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620821614] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:56,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:56,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:13:56,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146520031]
[2022-02-09 00:13:56,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:56,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:13:56,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:56,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:13:56,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:13:56,298 INFO L87 Difference]: Start difference. First operand 3406 states and 6835 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:13:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:57,845 INFO L93 Difference]: Finished difference Result 5606 states and 11266 transitions.
[2022-02-09 00:13:57,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states.
[2022-02-09 00:13:57,845 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:13:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:57,852 INFO L225 Difference]: With dead ends: 5606
[2022-02-09 00:13:57,852 INFO L226 Difference]: Without dead ends: 5606
[2022-02-09 00:13:57,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=641, Invalid=2781, Unknown=0, NotChecked=0, Total=3422
[2022-02-09 00:13:57,853 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 1300 mSDsluCounter, 3481 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:57,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1300 Valid, 3786 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-09 00:13:57,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5606 states.
[2022-02-09 00:13:57,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5606 to 3406.
[2022-02-09 00:13:57,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3404 states have (on average 2.0079318448883665) internal successors, (6835), 3405 states have internal predecessors, (6835), 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)
[2022-02-09 00:13:57,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 6835 transitions.
[2022-02-09 00:13:57,896 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 6835 transitions. Word has length 81
[2022-02-09 00:13:57,896 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:57,896 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 6835 transitions.
[2022-02-09 00:13:57,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:13:57,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 6835 transitions.
[2022-02-09 00:13:57,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:13:57,898 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:57,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:57,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2022-02-09 00:13:57,898 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:57,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:57,899 INFO L85 PathProgramCache]: Analyzing trace with hash 164150042, now seen corresponding path program 4 times
[2022-02-09 00:13:57,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:57,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078028623]
[2022-02-09 00:13:57,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:57,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:13:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:13:58,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:13:58,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078028623]
[2022-02-09 00:13:58,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078028623] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:13:58,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:13:58,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:13:58,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670524395]
[2022-02-09 00:13:58,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:13:58,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:13:58,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:13:58,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:13:58,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:13:58,127 INFO L87 Difference]: Start difference. First operand 3406 states and 6835 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:13:59,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:13:59,801 INFO L93 Difference]: Finished difference Result 6287 states and 12618 transitions.
[2022-02-09 00:13:59,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states.
[2022-02-09 00:13:59,801 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:13:59,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:13:59,809 INFO L225 Difference]: With dead ends: 6287
[2022-02-09 00:13:59,809 INFO L226 Difference]: Without dead ends: 6287
[2022-02-09 00:13:59,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=680, Invalid=2626, Unknown=0, NotChecked=0, Total=3306
[2022-02-09 00:13:59,810 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 2000 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 3735 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-09 00:13:59,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2000 Valid, 3735 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-02-09 00:13:59,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6287 states.
[2022-02-09 00:13:59,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6287 to 3436.
[2022-02-09 00:13:59,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3436 states, 3434 states have (on average 2.006406523005242) internal successors, (6890), 3435 states have internal predecessors, (6890), 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)
[2022-02-09 00:13:59,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 6890 transitions.
[2022-02-09 00:13:59,866 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 6890 transitions. Word has length 81
[2022-02-09 00:13:59,866 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:13:59,866 INFO L470 AbstractCegarLoop]: Abstraction has 3436 states and 6890 transitions.
[2022-02-09 00:13:59,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:13:59,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 6890 transitions.
[2022-02-09 00:13:59,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:13:59,868 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:13:59,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:13:59,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2022-02-09 00:13:59,869 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:13:59,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:13:59,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1025934648, now seen corresponding path program 5 times
[2022-02-09 00:13:59,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:13:59,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025864431]
[2022-02-09 00:13:59,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:13:59,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:13:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:00,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:00,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:00,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025864431]
[2022-02-09 00:14:00,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025864431] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:00,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:00,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:00,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285953300]
[2022-02-09 00:14:00,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:00,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:00,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:00,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:00,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:00,124 INFO L87 Difference]: Start difference. First operand 3436 states and 6890 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:01,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:01,726 INFO L93 Difference]: Finished difference Result 5995 states and 11999 transitions.
[2022-02-09 00:14:01,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-02-09 00:14:01,726 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:01,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:01,735 INFO L225 Difference]: With dead ends: 5995
[2022-02-09 00:14:01,735 INFO L226 Difference]: Without dead ends: 5995
[2022-02-09 00:14:01,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=623, Invalid=2569, Unknown=0, NotChecked=0, Total=3192
[2022-02-09 00:14:01,736 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 1578 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 3409 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:01,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1578 Valid, 3409 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-02-09 00:14:01,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5995 states.
[2022-02-09 00:14:01,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5995 to 3439.
[2022-02-09 00:14:01,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3437 states have (on average 2.0064009310445154) internal successors, (6896), 3438 states have internal predecessors, (6896), 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)
[2022-02-09 00:14:01,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 6896 transitions.
[2022-02-09 00:14:01,785 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 6896 transitions. Word has length 81
[2022-02-09 00:14:01,786 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:01,786 INFO L470 AbstractCegarLoop]: Abstraction has 3439 states and 6896 transitions.
[2022-02-09 00:14:01,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:01,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 6896 transitions.
[2022-02-09 00:14:01,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:01,788 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:01,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:01,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2022-02-09 00:14:01,788 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:01,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:01,789 INFO L85 PathProgramCache]: Analyzing trace with hash -2130431944, now seen corresponding path program 6 times
[2022-02-09 00:14:01,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:01,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134319851]
[2022-02-09 00:14:01,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:01,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:02,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:02,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134319851]
[2022-02-09 00:14:02,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134319851] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:02,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:02,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:02,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463853994]
[2022-02-09 00:14:02,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:02,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:02,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:02,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:02,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:02,057 INFO L87 Difference]: Start difference. First operand 3439 states and 6896 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:03,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:03,534 INFO L93 Difference]: Finished difference Result 6444 states and 12922 transitions.
[2022-02-09 00:14:03,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states.
[2022-02-09 00:14:03,535 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:03,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:03,544 INFO L225 Difference]: With dead ends: 6444
[2022-02-09 00:14:03,544 INFO L226 Difference]: Without dead ends: 6444
[2022-02-09 00:14:03,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=598, Invalid=2482, Unknown=0, NotChecked=0, Total=3080
[2022-02-09 00:14:03,545 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 2089 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:03,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2089 Valid, 3033 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-09 00:14:03,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6444 states.
[2022-02-09 00:14:03,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6444 to 3442.
[2022-02-09 00:14:03,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 3440 states have (on average 2.0063953488372093) internal successors, (6902), 3441 states have internal predecessors, (6902), 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)
[2022-02-09 00:14:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 6902 transitions.
[2022-02-09 00:14:03,610 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 6902 transitions. Word has length 81
[2022-02-09 00:14:03,610 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:03,610 INFO L470 AbstractCegarLoop]: Abstraction has 3442 states and 6902 transitions.
[2022-02-09 00:14:03,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 6902 transitions.
[2022-02-09 00:14:03,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:03,613 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:03,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:03,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2022-02-09 00:14:03,614 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:03,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:03,614 INFO L85 PathProgramCache]: Analyzing trace with hash 661554486, now seen corresponding path program 7 times
[2022-02-09 00:14:03,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:03,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581082361]
[2022-02-09 00:14:03,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:03,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:03,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:03,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581082361]
[2022-02-09 00:14:03,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581082361] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:03,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:03,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:03,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256285068]
[2022-02-09 00:14:03,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:03,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:03,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:03,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:03,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:03,912 INFO L87 Difference]: Start difference. First operand 3442 states and 6902 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:05,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:05,828 INFO L93 Difference]: Finished difference Result 6055 states and 12124 transitions.
[2022-02-09 00:14:05,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states.
[2022-02-09 00:14:05,829 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:05,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:05,840 INFO L225 Difference]: With dead ends: 6055
[2022-02-09 00:14:05,841 INFO L226 Difference]: Without dead ends: 6055
[2022-02-09 00:14:05,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=670, Invalid=2752, Unknown=0, NotChecked=0, Total=3422
[2022-02-09 00:14:05,845 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 1993 mSDsluCounter, 3124 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 3441 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:05,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1993 Valid, 3441 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-02-09 00:14:05,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6055 states.
[2022-02-09 00:14:05,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6055 to 3436.
[2022-02-09 00:14:05,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3436 states, 3434 states have (on average 2.006406523005242) internal successors, (6890), 3435 states have internal predecessors, (6890), 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)
[2022-02-09 00:14:05,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 6890 transitions.
[2022-02-09 00:14:05,919 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 6890 transitions. Word has length 81
[2022-02-09 00:14:05,920 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:05,920 INFO L470 AbstractCegarLoop]: Abstraction has 3436 states and 6890 transitions.
[2022-02-09 00:14:05,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:05,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 6890 transitions.
[2022-02-09 00:14:05,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:05,923 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:05,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:05,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2022-02-09 00:14:05,924 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:05,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:05,924 INFO L85 PathProgramCache]: Analyzing trace with hash 475759382, now seen corresponding path program 8 times
[2022-02-09 00:14:05,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:05,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566942531]
[2022-02-09 00:14:05,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:05,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:06,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:06,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566942531]
[2022-02-09 00:14:06,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566942531] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:06,230 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:06,230 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:06,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595352253]
[2022-02-09 00:14:06,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:06,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:06,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:06,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:06,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:06,231 INFO L87 Difference]: Start difference. First operand 3436 states and 6890 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:07,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:07,838 INFO L93 Difference]: Finished difference Result 5842 states and 11611 transitions.
[2022-02-09 00:14:07,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2022-02-09 00:14:07,839 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:07,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:07,860 INFO L225 Difference]: With dead ends: 5842
[2022-02-09 00:14:07,860 INFO L226 Difference]: Without dead ends: 5842
[2022-02-09 00:14:07,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=527, Invalid=2023, Unknown=0, NotChecked=0, Total=2550
[2022-02-09 00:14:07,861 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 1513 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:07,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 3642 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2022-02-09 00:14:07,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5842 states.
[2022-02-09 00:14:07,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5842 to 3463.
[2022-02-09 00:14:07,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3461 states have (on average 2.0063565443513434) internal successors, (6944), 3462 states have internal predecessors, (6944), 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)
[2022-02-09 00:14:07,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 6944 transitions.
[2022-02-09 00:14:07,933 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 6944 transitions. Word has length 81
[2022-02-09 00:14:07,933 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:07,934 INFO L470 AbstractCegarLoop]: Abstraction has 3463 states and 6944 transitions.
[2022-02-09 00:14:07,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:07,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 6944 transitions.
[2022-02-09 00:14:07,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:07,937 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:07,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:07,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2022-02-09 00:14:07,937 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:07,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:07,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1983120214, now seen corresponding path program 9 times
[2022-02-09 00:14:07,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:07,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405048665]
[2022-02-09 00:14:07,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:07,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:08,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:08,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:08,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405048665]
[2022-02-09 00:14:08,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405048665] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:08,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:08,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:08,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021187170]
[2022-02-09 00:14:08,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:08,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:08,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:08,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:08,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:08,226 INFO L87 Difference]: Start difference. First operand 3463 states and 6944 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:09,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:09,900 INFO L93 Difference]: Finished difference Result 5620 states and 11195 transitions.
[2022-02-09 00:14:09,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states.
[2022-02-09 00:14:09,901 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:09,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:09,910 INFO L225 Difference]: With dead ends: 5620
[2022-02-09 00:14:09,911 INFO L226 Difference]: Without dead ends: 5620
[2022-02-09 00:14:09,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=552, Invalid=2310, Unknown=0, NotChecked=0, Total=2862
[2022-02-09 00:14:09,912 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 1547 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:09,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 3490 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-02-09 00:14:09,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states.
[2022-02-09 00:14:09,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 3466.
[2022-02-09 00:14:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3466 states, 3464 states have (on average 2.00635103926097) internal successors, (6950), 3465 states have internal predecessors, (6950), 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)
[2022-02-09 00:14:09,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3466 states to 3466 states and 6950 transitions.
[2022-02-09 00:14:09,981 INFO L78 Accepts]: Start accepts. Automaton has 3466 states and 6950 transitions. Word has length 81
[2022-02-09 00:14:09,981 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:09,981 INFO L470 AbstractCegarLoop]: Abstraction has 3466 states and 6950 transitions.
[2022-02-09 00:14:09,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:09,981 INFO L276 IsEmpty]: Start isEmpty. Operand 3466 states and 6950 transitions.
[2022-02-09 00:14:09,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:09,985 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:09,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:09,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2022-02-09 00:14:09,985 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:09,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:09,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1173246378, now seen corresponding path program 10 times
[2022-02-09 00:14:09,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:09,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464387541]
[2022-02-09 00:14:09,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:09,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:10,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:10,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464387541]
[2022-02-09 00:14:10,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464387541] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:10,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:10,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:10,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921200590]
[2022-02-09 00:14:10,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:10,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:10,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:10,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:10,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:10,274 INFO L87 Difference]: Start difference. First operand 3466 states and 6950 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:12,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:12,014 INFO L93 Difference]: Finished difference Result 6725 states and 13452 transitions.
[2022-02-09 00:14:12,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-02-09 00:14:12,014 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:12,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:12,026 INFO L225 Difference]: With dead ends: 6725
[2022-02-09 00:14:12,026 INFO L226 Difference]: Without dead ends: 6725
[2022-02-09 00:14:12,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=590, Invalid=2602, Unknown=0, NotChecked=0, Total=3192
[2022-02-09 00:14:12,028 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 1899 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 3722 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:12,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1899 Valid, 3722 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-02-09 00:14:12,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6725 states.
[2022-02-09 00:14:12,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6725 to 3469.
[2022-02-09 00:14:12,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3469 states, 3467 states have (on average 2.0063455436977216) internal successors, (6956), 3468 states have internal predecessors, (6956), 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)
[2022-02-09 00:14:12,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3469 states to 3469 states and 6956 transitions.
[2022-02-09 00:14:12,096 INFO L78 Accepts]: Start accepts. Automaton has 3469 states and 6956 transitions. Word has length 81
[2022-02-09 00:14:12,096 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:12,096 INFO L470 AbstractCegarLoop]: Abstraction has 3469 states and 6956 transitions.
[2022-02-09 00:14:12,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:12,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3469 states and 6956 transitions.
[2022-02-09 00:14:12,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:12,099 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:12,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:12,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2022-02-09 00:14:12,100 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:12,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:12,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1618740052, now seen corresponding path program 11 times
[2022-02-09 00:14:12,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:12,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071362185]
[2022-02-09 00:14:12,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:12,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:12,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:12,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:12,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071362185]
[2022-02-09 00:14:12,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071362185] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:12,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:12,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:12,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914401842]
[2022-02-09 00:14:12,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:12,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:12,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:12,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:12,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:12,376 INFO L87 Difference]: Start difference. First operand 3469 states and 6956 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:14,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:14,242 INFO L93 Difference]: Finished difference Result 6664 states and 13326 transitions.
[2022-02-09 00:14:14,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states.
[2022-02-09 00:14:14,242 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:14,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:14,255 INFO L225 Difference]: With dead ends: 6664
[2022-02-09 00:14:14,255 INFO L226 Difference]: Without dead ends: 6664
[2022-02-09 00:14:14,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=660, Invalid=2880, Unknown=0, NotChecked=0, Total=3540
[2022-02-09 00:14:14,257 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 1841 mSDsluCounter, 3409 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 3731 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:14,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1841 Valid, 3731 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-02-09 00:14:14,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6664 states.
[2022-02-09 00:14:14,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6664 to 3445.
[2022-02-09 00:14:14,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 3443 states have (on average 2.0063897763578273) internal successors, (6908), 3444 states have internal predecessors, (6908), 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)
[2022-02-09 00:14:14,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 6908 transitions.
[2022-02-09 00:14:14,338 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 6908 transitions. Word has length 81
[2022-02-09 00:14:14,338 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:14,338 INFO L470 AbstractCegarLoop]: Abstraction has 3445 states and 6908 transitions.
[2022-02-09 00:14:14,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:14,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 6908 transitions.
[2022-02-09 00:14:14,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:14,341 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:14,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:14,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2022-02-09 00:14:14,341 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:14,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:14,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1108840562, now seen corresponding path program 12 times
[2022-02-09 00:14:14,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:14,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619670283]
[2022-02-09 00:14:14,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:14,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:14,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:14,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:14,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619670283]
[2022-02-09 00:14:14,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619670283] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:14,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:14,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:14,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380312155]
[2022-02-09 00:14:14,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:14,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:14,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:14,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:14,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:14,600 INFO L87 Difference]: Start difference. First operand 3445 states and 6908 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:16,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:16,120 INFO L93 Difference]: Finished difference Result 5448 states and 10881 transitions.
[2022-02-09 00:14:16,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states.
[2022-02-09 00:14:16,121 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:16,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:16,133 INFO L225 Difference]: With dead ends: 5448
[2022-02-09 00:14:16,133 INFO L226 Difference]: Without dead ends: 5448
[2022-02-09 00:14:16,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=500, Invalid=1950, Unknown=0, NotChecked=0, Total=2450
[2022-02-09 00:14:16,134 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 1251 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:16,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 3436 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-02-09 00:14:16,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5448 states.
[2022-02-09 00:14:16,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5448 to 3451.
[2022-02-09 00:14:16,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 3449 states have (on average 2.0063786604812988) internal successors, (6920), 3450 states have internal predecessors, (6920), 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)
[2022-02-09 00:14:16,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 6920 transitions.
[2022-02-09 00:14:16,205 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 6920 transitions. Word has length 81
[2022-02-09 00:14:16,206 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:16,206 INFO L470 AbstractCegarLoop]: Abstraction has 3451 states and 6920 transitions.
[2022-02-09 00:14:16,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:16,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 6920 transitions.
[2022-02-09 00:14:16,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:16,209 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:16,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:16,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2022-02-09 00:14:16,209 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:16,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:16,210 INFO L85 PathProgramCache]: Analyzing trace with hash 2023906220, now seen corresponding path program 13 times
[2022-02-09 00:14:16,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:16,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271299944]
[2022-02-09 00:14:16,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:16,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:16,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:16,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:16,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271299944]
[2022-02-09 00:14:16,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271299944] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:16,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:16,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:16,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712430029]
[2022-02-09 00:14:16,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:16,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:16,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:16,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:16,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:16,487 INFO L87 Difference]: Start difference. First operand 3451 states and 6920 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:18,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:18,037 INFO L93 Difference]: Finished difference Result 5812 states and 11578 transitions.
[2022-02-09 00:14:18,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2022-02-09 00:14:18,038 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:18,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:18,051 INFO L225 Difference]: With dead ends: 5812
[2022-02-09 00:14:18,051 INFO L226 Difference]: Without dead ends: 5812
[2022-02-09 00:14:18,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=524, Invalid=2026, Unknown=0, NotChecked=0, Total=2550
[2022-02-09 00:14:18,052 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 1375 mSDsluCounter, 2969 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 3289 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:18,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 3289 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-02-09 00:14:18,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5812 states.
[2022-02-09 00:14:18,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5812 to 3451.
[2022-02-09 00:14:18,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 3449 states have (on average 2.0063786604812988) internal successors, (6920), 3450 states have internal predecessors, (6920), 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)
[2022-02-09 00:14:18,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 6920 transitions.
[2022-02-09 00:14:18,130 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 6920 transitions. Word has length 81
[2022-02-09 00:14:18,130 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:18,130 INFO L470 AbstractCegarLoop]: Abstraction has 3451 states and 6920 transitions.
[2022-02-09 00:14:18,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:18,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 6920 transitions.
[2022-02-09 00:14:18,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:18,133 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:18,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:18,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2022-02-09 00:14:18,134 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:18,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:18,134 INFO L85 PathProgramCache]: Analyzing trace with hash -763700244, now seen corresponding path program 14 times
[2022-02-09 00:14:18,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:18,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625123072]
[2022-02-09 00:14:18,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:18,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:18,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:18,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625123072]
[2022-02-09 00:14:18,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625123072] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:18,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:18,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:18,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281661039]
[2022-02-09 00:14:18,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:18,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:18,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:18,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:18,439 INFO L87 Difference]: Start difference. First operand 3451 states and 6920 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:19,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:19,984 INFO L93 Difference]: Finished difference Result 5569 states and 11128 transitions.
[2022-02-09 00:14:19,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states.
[2022-02-09 00:14:19,985 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:19,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:19,993 INFO L225 Difference]: With dead ends: 5569
[2022-02-09 00:14:19,993 INFO L226 Difference]: Without dead ends: 5569
[2022-02-09 00:14:19,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=549, Invalid=2313, Unknown=0, NotChecked=0, Total=2862
[2022-02-09 00:14:19,994 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 1630 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:19,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1630 Valid, 2801 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-09 00:14:20,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states.
[2022-02-09 00:14:20,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 3451.
[2022-02-09 00:14:20,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 3449 states have (on average 2.0063786604812988) internal successors, (6920), 3450 states have internal predecessors, (6920), 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)
[2022-02-09 00:14:20,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 6920 transitions.
[2022-02-09 00:14:20,064 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 6920 transitions. Word has length 81
[2022-02-09 00:14:20,064 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:20,065 INFO L470 AbstractCegarLoop]: Abstraction has 3451 states and 6920 transitions.
[2022-02-09 00:14:20,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:20,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 6920 transitions.
[2022-02-09 00:14:20,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:20,067 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:20,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:20,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2022-02-09 00:14:20,068 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:20,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:20,068 INFO L85 PathProgramCache]: Analyzing trace with hash 374900460, now seen corresponding path program 15 times
[2022-02-09 00:14:20,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:20,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619636715]
[2022-02-09 00:14:20,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:20,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:20,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:20,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:20,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619636715]
[2022-02-09 00:14:20,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619636715] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:20,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:20,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:20,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165322616]
[2022-02-09 00:14:20,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:20,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:20,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:20,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:20,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:20,344 INFO L87 Difference]: Start difference. First operand 3451 states and 6920 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:22,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:22,013 INFO L93 Difference]: Finished difference Result 6669 states and 13376 transitions.
[2022-02-09 00:14:22,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-02-09 00:14:22,014 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:22,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:22,026 INFO L225 Difference]: With dead ends: 6669
[2022-02-09 00:14:22,026 INFO L226 Difference]: Without dead ends: 6669
[2022-02-09 00:14:22,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=586, Invalid=2606, Unknown=0, NotChecked=0, Total=3192
[2022-02-09 00:14:22,028 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 1659 mSDsluCounter, 3168 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:22,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1659 Valid, 3540 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-02-09 00:14:22,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6669 states.
[2022-02-09 00:14:22,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6669 to 3445.
[2022-02-09 00:14:22,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 3443 states have (on average 2.0063897763578273) internal successors, (6908), 3444 states have internal predecessors, (6908), 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)
[2022-02-09 00:14:22,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 6908 transitions.
[2022-02-09 00:14:22,097 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 6908 transitions. Word has length 81
[2022-02-09 00:14:22,097 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:22,097 INFO L470 AbstractCegarLoop]: Abstraction has 3445 states and 6908 transitions.
[2022-02-09 00:14:22,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:22,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 6908 transitions.
[2022-02-09 00:14:22,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:22,100 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:22,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:22,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2022-02-09 00:14:22,100 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:22,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:22,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1128080406, now seen corresponding path program 16 times
[2022-02-09 00:14:22,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:22,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819897983]
[2022-02-09 00:14:22,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:22,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:22,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:22,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:22,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819897983]
[2022-02-09 00:14:22,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819897983] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:22,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:22,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:22,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676275016]
[2022-02-09 00:14:22,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:22,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:22,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:22,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:22,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:22,385 INFO L87 Difference]: Start difference. First operand 3445 states and 6908 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:24,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:24,289 INFO L93 Difference]: Finished difference Result 6608 states and 13250 transitions.
[2022-02-09 00:14:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states.
[2022-02-09 00:14:24,290 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:24,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:24,302 INFO L225 Difference]: With dead ends: 6608
[2022-02-09 00:14:24,302 INFO L226 Difference]: Without dead ends: 6608
[2022-02-09 00:14:24,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=657, Invalid=2883, Unknown=0, NotChecked=0, Total=3540
[2022-02-09 00:14:24,303 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 1680 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:24,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1680 Valid, 3877 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2022-02-09 00:14:24,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6608 states.
[2022-02-09 00:14:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6608 to 3421.
[2022-02-09 00:14:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 3419 states have (on average 2.0064346300087745) internal successors, (6860), 3420 states have internal predecessors, (6860), 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)
[2022-02-09 00:14:24,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 6860 transitions.
[2022-02-09 00:14:24,379 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 6860 transitions. Word has length 81
[2022-02-09 00:14:24,380 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:24,380 INFO L470 AbstractCegarLoop]: Abstraction has 3421 states and 6860 transitions.
[2022-02-09 00:14:24,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:24,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 6860 transitions.
[2022-02-09 00:14:24,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:24,382 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:24,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:24,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2022-02-09 00:14:24,383 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:24,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:24,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1637979896, now seen corresponding path program 17 times
[2022-02-09 00:14:24,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:24,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809864449]
[2022-02-09 00:14:24,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:24,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:24,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:24,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809864449]
[2022-02-09 00:14:24,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809864449] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:24,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:24,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:24,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196638216]
[2022-02-09 00:14:24,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:24,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:24,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:24,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:24,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:24,661 INFO L87 Difference]: Start difference. First operand 3421 states and 6860 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:26,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:26,242 INFO L93 Difference]: Finished difference Result 6000 states and 11941 transitions.
[2022-02-09 00:14:26,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2022-02-09 00:14:26,242 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:26,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:26,252 INFO L225 Difference]: With dead ends: 6000
[2022-02-09 00:14:26,253 INFO L226 Difference]: Without dead ends: 6000
[2022-02-09 00:14:26,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=524, Invalid=2026, Unknown=0, NotChecked=0, Total=2550
[2022-02-09 00:14:26,254 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1324 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:26,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1324 Valid, 3592 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2022-02-09 00:14:26,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states.
[2022-02-09 00:14:26,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3412.
[2022-02-09 00:14:26,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3410 states have (on average 2.0064516129032257) internal successors, (6842), 3411 states have internal predecessors, (6842), 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)
[2022-02-09 00:14:26,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 6842 transitions.
[2022-02-09 00:14:26,328 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 6842 transitions. Word has length 81
[2022-02-09 00:14:26,328 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:26,328 INFO L470 AbstractCegarLoop]: Abstraction has 3412 states and 6842 transitions.
[2022-02-09 00:14:26,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:26,328 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 6842 transitions.
[2022-02-09 00:14:26,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-09 00:14:26,331 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:26,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:26,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2022-02-09 00:14:26,331 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:26,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:26,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2035292628, now seen corresponding path program 18 times
[2022-02-09 00:14:26,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:26,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194516951]
[2022-02-09 00:14:26,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:26,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:26,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:26,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:26,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194516951]
[2022-02-09 00:14:26,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194516951] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:26,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:26,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-09 00:14:26,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681197397]
[2022-02-09 00:14:26,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:26,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-09 00:14:26,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:26,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-09 00:14:26,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420
[2022-02-09 00:14:26,630 INFO L87 Difference]: Start difference. First operand 3412 states and 6842 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:28,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:28,052 INFO L93 Difference]: Finished difference Result 5400 states and 10821 transitions.
[2022-02-09 00:14:28,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2022-02-09 00:14:28,052 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81
[2022-02-09 00:14:28,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:28,061 INFO L225 Difference]: With dead ends: 5400
[2022-02-09 00:14:28,061 INFO L226 Difference]: Without dead ends: 5400
[2022-02-09 00:14:28,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=520, Invalid=2030, Unknown=0, NotChecked=0, Total=2550
[2022-02-09 00:14:28,062 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 1703 mSDsluCounter, 2504 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:28,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1703 Valid, 2835 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-09 00:14:28,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5400 states.
[2022-02-09 00:14:28,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5400 to 3386.
[2022-02-09 00:14:28,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3384 states have (on average 2.009160756501182) internal successors, (6799), 3385 states have internal predecessors, (6799), 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)
[2022-02-09 00:14:28,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 6799 transitions.
[2022-02-09 00:14:28,128 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 6799 transitions. Word has length 81
[2022-02-09 00:14:28,128 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:28,128 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 6799 transitions.
[2022-02-09 00:14:28,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-09 00:14:28,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 6799 transitions.
[2022-02-09 00:14:28,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2022-02-09 00:14:28,132 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:28,132 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:28,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2022-02-09 00:14:28,132 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:28,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:28,132 INFO L85 PathProgramCache]: Analyzing trace with hash -820424251, now seen corresponding path program 1 times
[2022-02-09 00:14:28,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:28,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499598908]
[2022-02-09 00:14:28,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:28,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:28,394 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:28,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:28,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499598908]
[2022-02-09 00:14:28,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499598908] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:14:28,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677922771]
[2022-02-09 00:14:28,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:28,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:14:28,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:14:28,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:14:28,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-02-09 00:14:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:28,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 43 conjunts are in the unsatisfiable core
[2022-02-09 00:14:28,534 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:14:28,730 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:14:28,731 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:14:28,888 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:14:29,005 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:14:29,482 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:14:29,650 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:14:29,660 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:29,661 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:14:30,121 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_689 (Array Int Int))) (<= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_689) |c_~#pqb~0.base|) |c_~#pqb~0.offset|))) is different from false
[2022-02-09 00:14:30,161 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:14:30,162 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19
[2022-02-09 00:14:30,170 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:14:30,171 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 33
[2022-02-09 00:14:30,175 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7
[2022-02-09 00:14:30,350 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:14:30,350 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:14:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:30,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677922771] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:14:30,360 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:14:30,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 45
[2022-02-09 00:14:30,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194020145]
[2022-02-09 00:14:30,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:14:30,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2022-02-09 00:14:30,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:30,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2022-02-09 00:14:30,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1711, Unknown=1, NotChecked=84, Total=1980
[2022-02-09 00:14:30,363 INFO L87 Difference]: Start difference. First operand 3386 states and 6799 transitions. Second operand has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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)
[2022-02-09 00:14:33,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:33,359 INFO L93 Difference]: Finished difference Result 7054 states and 14168 transitions.
[2022-02-09 00:14:33,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states.
[2022-02-09 00:14:33,361 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94
[2022-02-09 00:14:33,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:33,376 INFO L225 Difference]: With dead ends: 7054
[2022-02-09 00:14:33,376 INFO L226 Difference]: Without dead ends: 7054
[2022-02-09 00:14:33,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 164 SyntacticMatches, 7 SemanticMatches, 81 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1691 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1321, Invalid=5324, Unknown=1, NotChecked=160, Total=6806
[2022-02-09 00:14:33,377 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 3072 mSDsluCounter, 5239 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3072 SdHoareTripleChecker+Valid, 5618 SdHoareTripleChecker+Invalid, 2508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1112 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:33,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3072 Valid, 5618 Invalid, 2508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1280 Invalid, 0 Unknown, 1112 Unchecked, 0.7s Time]
[2022-02-09 00:14:33,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7054 states.
[2022-02-09 00:14:33,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7054 to 4250.
[2022-02-09 00:14:33,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4250 states, 4248 states have (on average 2.0185969868173257) internal successors, (8575), 4249 states have internal predecessors, (8575), 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)
[2022-02-09 00:14:33,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4250 states to 4250 states and 8575 transitions.
[2022-02-09 00:14:33,467 INFO L78 Accepts]: Start accepts. Automaton has 4250 states and 8575 transitions. Word has length 94
[2022-02-09 00:14:33,467 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:33,467 INFO L470 AbstractCegarLoop]: Abstraction has 4250 states and 8575 transitions.
[2022-02-09 00:14:33,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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)
[2022-02-09 00:14:33,468 INFO L276 IsEmpty]: Start isEmpty. Operand 4250 states and 8575 transitions.
[2022-02-09 00:14:33,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2022-02-09 00:14:33,472 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:33,472 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:33,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-02-09 00:14:33,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45
[2022-02-09 00:14:33,674 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:33,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:33,674 INFO L85 PathProgramCache]: Analyzing trace with hash 339187099, now seen corresponding path program 2 times
[2022-02-09 00:14:33,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:33,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723984537]
[2022-02-09 00:14:33,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:33,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:33,958 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:33,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:33,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723984537]
[2022-02-09 00:14:33,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723984537] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:14:33,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986483443]
[2022-02-09 00:14:33,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-09 00:14:33,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:14:33,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:14:33,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:14:33,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-02-09 00:14:34,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 00:14:34,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:14:34,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 43 conjunts are in the unsatisfiable core
[2022-02-09 00:14:34,070 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:14:34,228 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:14:34,229 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:14:34,380 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:14:34,482 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:14:34,911 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:14:35,097 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:14:35,109 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:35,109 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:14:35,557 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_726 (Array Int Int))) (<= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_726) |c_~#pqb~0.base|) |c_~#pqb~0.offset|))) is different from false
[2022-02-09 00:14:35,621 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:14:35,621 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19
[2022-02-09 00:14:35,638 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:14:35,639 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 33
[2022-02-09 00:14:35,643 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7
[2022-02-09 00:14:35,807 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:14:35,808 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:14:35,817 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:35,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986483443] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:14:35,818 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:14:35,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 45
[2022-02-09 00:14:35,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383451799]
[2022-02-09 00:14:35,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:14:35,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2022-02-09 00:14:35,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:35,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2022-02-09 00:14:35,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1708, Unknown=1, NotChecked=84, Total=1980
[2022-02-09 00:14:35,820 INFO L87 Difference]: Start difference. First operand 4250 states and 8575 transitions. Second operand has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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)
[2022-02-09 00:14:38,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:38,869 INFO L93 Difference]: Finished difference Result 9523 states and 19206 transitions.
[2022-02-09 00:14:38,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states.
[2022-02-09 00:14:38,870 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94
[2022-02-09 00:14:38,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:38,890 INFO L225 Difference]: With dead ends: 9523
[2022-02-09 00:14:38,890 INFO L226 Difference]: Without dead ends: 9523
[2022-02-09 00:14:38,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 168 SyntacticMatches, 7 SemanticMatches, 82 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1764 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1421, Invalid=5388, Unknown=1, NotChecked=162, Total=6972
[2022-02-09 00:14:38,892 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 3669 mSDsluCounter, 4954 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3669 SdHoareTripleChecker+Valid, 5346 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 673 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:38,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3669 Valid, 5346 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1399 Invalid, 0 Unknown, 673 Unchecked, 0.7s Time]
[2022-02-09 00:14:38,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states.
[2022-02-09 00:14:38,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 4369.
[2022-02-09 00:14:38,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4369 states, 4367 states have (on average 2.0116784978245934) internal successors, (8785), 4368 states have internal predecessors, (8785), 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)
[2022-02-09 00:14:38,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4369 states to 4369 states and 8785 transitions.
[2022-02-09 00:14:39,000 INFO L78 Accepts]: Start accepts. Automaton has 4369 states and 8785 transitions. Word has length 94
[2022-02-09 00:14:39,000 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:39,000 INFO L470 AbstractCegarLoop]: Abstraction has 4369 states and 8785 transitions.
[2022-02-09 00:14:39,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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)
[2022-02-09 00:14:39,000 INFO L276 IsEmpty]: Start isEmpty. Operand 4369 states and 8785 transitions.
[2022-02-09 00:14:39,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2022-02-09 00:14:39,005 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:39,005 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:39,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-02-09 00:14:39,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46
[2022-02-09 00:14:39,208 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:39,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:39,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1501853757, now seen corresponding path program 3 times
[2022-02-09 00:14:39,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:39,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755038743]
[2022-02-09 00:14:39,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:39,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:39,488 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:39,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:39,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755038743]
[2022-02-09 00:14:39,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755038743] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:14:39,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206629207]
[2022-02-09 00:14:39,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-09 00:14:39,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:14:39,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:14:39,492 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:14:39,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-02-09 00:14:39,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2022-02-09 00:14:39,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:14:39,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 43 conjunts are in the unsatisfiable core
[2022-02-09 00:14:39,634 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:14:39,781 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:14:39,782 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:14:39,906 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:14:39,992 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:14:40,397 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:14:40,565 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:14:40,576 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:40,577 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:14:40,973 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_763 (Array Int Int))) (<= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_763) |c_~#pqb~0.base|) |c_~#pqb~0.offset|))) is different from false
[2022-02-09 00:14:41,018 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:14:41,018 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19
[2022-02-09 00:14:41,024 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:14:41,025 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 33
[2022-02-09 00:14:41,028 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7
[2022-02-09 00:14:41,201 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:14:41,201 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:14:41,211 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:41,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206629207] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:14:41,211 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:14:41,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 45
[2022-02-09 00:14:41,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127875452]
[2022-02-09 00:14:41,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:14:41,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2022-02-09 00:14:41,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:41,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2022-02-09 00:14:41,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1716, Unknown=1, NotChecked=84, Total=1980
[2022-02-09 00:14:41,213 INFO L87 Difference]: Start difference. First operand 4369 states and 8785 transitions. Second operand has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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)
[2022-02-09 00:14:44,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:44,187 INFO L93 Difference]: Finished difference Result 9891 states and 19888 transitions.
[2022-02-09 00:14:44,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states.
[2022-02-09 00:14:44,188 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94
[2022-02-09 00:14:44,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:44,208 INFO L225 Difference]: With dead ends: 9891
[2022-02-09 00:14:44,208 INFO L226 Difference]: Without dead ends: 9891
[2022-02-09 00:14:44,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 166 SyntacticMatches, 3 SemanticMatches, 81 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1492 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1362, Invalid=5283, Unknown=1, NotChecked=160, Total=6806
[2022-02-09 00:14:44,210 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 3333 mSDsluCounter, 5450 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 5846 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 819 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:44,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3333 Valid, 5846 Invalid, 2376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1422 Invalid, 0 Unknown, 819 Unchecked, 0.7s Time]
[2022-02-09 00:14:44,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9891 states.
[2022-02-09 00:14:44,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9891 to 4483.
[2022-02-09 00:14:44,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4483 states, 4481 states have (on average 2.0127203749163134) internal successors, (9019), 4482 states have internal predecessors, (9019), 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)
[2022-02-09 00:14:44,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4483 states to 4483 states and 9019 transitions.
[2022-02-09 00:14:44,324 INFO L78 Accepts]: Start accepts. Automaton has 4483 states and 9019 transitions. Word has length 94
[2022-02-09 00:14:44,324 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:44,324 INFO L470 AbstractCegarLoop]: Abstraction has 4483 states and 9019 transitions.
[2022-02-09 00:14:44,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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)
[2022-02-09 00:14:44,324 INFO L276 IsEmpty]: Start isEmpty. Operand 4483 states and 9019 transitions.
[2022-02-09 00:14:44,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2022-02-09 00:14:44,329 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:44,330 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:44,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2022-02-09 00:14:44,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:14:44,531 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:44,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:44,531 INFO L85 PathProgramCache]: Analyzing trace with hash 420528999, now seen corresponding path program 4 times
[2022-02-09 00:14:44,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:44,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678516251]
[2022-02-09 00:14:44,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:44,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:44,829 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:44,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:44,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678516251]
[2022-02-09 00:14:44,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678516251] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:14:44,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973742053]
[2022-02-09 00:14:44,829 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-09 00:14:44,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:14:44,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:14:44,831 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:14:44,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-02-09 00:14:44,950 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-09 00:14:44,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:14:44,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 45 conjunts are in the unsatisfiable core
[2022-02-09 00:14:44,962 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:14:45,100 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:14:45,101 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:14:45,258 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:14:45,375 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:14:45,814 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:14:46,049 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:46,050 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:14:46,453 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_800 (Array Int Int))) (<= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_800) |c_~#pqb~0.base|) |c_~#pqb~0.offset|))) is different from false
[2022-02-09 00:14:46,485 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:14:46,486 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19
[2022-02-09 00:14:46,494 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:14:46,494 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 33
[2022-02-09 00:14:46,498 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7
[2022-02-09 00:14:46,687 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:14:46,687 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:14:46,698 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:46,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973742053] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:14:46,698 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:14:46,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 46
[2022-02-09 00:14:46,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947604020]
[2022-02-09 00:14:46,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:14:46,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states
[2022-02-09 00:14:46,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:46,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants.
[2022-02-09 00:14:46,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1797, Unknown=1, NotChecked=86, Total=2070
[2022-02-09 00:14:46,700 INFO L87 Difference]: Start difference. First operand 4483 states and 9019 transitions. Second operand has 46 states, 46 states have (on average 5.0) internal successors, (230), 46 states have internal predecessors, (230), 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)
[2022-02-09 00:14:49,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:49,663 INFO L93 Difference]: Finished difference Result 9836 states and 19719 transitions.
[2022-02-09 00:14:49,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-02-09 00:14:49,663 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 5.0) internal successors, (230), 46 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94
[2022-02-09 00:14:49,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:49,686 INFO L225 Difference]: With dead ends: 9836
[2022-02-09 00:14:49,686 INFO L226 Difference]: Without dead ends: 9836
[2022-02-09 00:14:49,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 168 SyntacticMatches, 7 SemanticMatches, 80 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1571 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1285, Invalid=5198, Unknown=1, NotChecked=158, Total=6642
[2022-02-09 00:14:49,687 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 3536 mSDsluCounter, 5499 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3536 SdHoareTripleChecker+Valid, 5914 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 797 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:49,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3536 Valid, 5914 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1452 Invalid, 0 Unknown, 797 Unchecked, 0.7s Time]
[2022-02-09 00:14:49,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9836 states.
[2022-02-09 00:14:49,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9836 to 4124.
[2022-02-09 00:14:49,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4124 states, 4122 states have (on average 2.005337214944202) internal successors, (8266), 4123 states have internal predecessors, (8266), 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)
[2022-02-09 00:14:49,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4124 states to 4124 states and 8266 transitions.
[2022-02-09 00:14:49,801 INFO L78 Accepts]: Start accepts. Automaton has 4124 states and 8266 transitions. Word has length 94
[2022-02-09 00:14:49,802 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:49,802 INFO L470 AbstractCegarLoop]: Abstraction has 4124 states and 8266 transitions.
[2022-02-09 00:14:49,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 5.0) internal successors, (230), 46 states have internal predecessors, (230), 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)
[2022-02-09 00:14:49,802 INFO L276 IsEmpty]: Start isEmpty. Operand 4124 states and 8266 transitions.
[2022-02-09 00:14:49,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97
[2022-02-09 00:14:49,808 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:49,808 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:49,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-02-09 00:14:50,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48
[2022-02-09 00:14:50,009 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:50,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:50,009 INFO L85 PathProgramCache]: Analyzing trace with hash -579571583, now seen corresponding path program 1 times
[2022-02-09 00:14:50,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:50,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591517491]
[2022-02-09 00:14:50,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:50,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:50,172 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:50,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:50,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591517491]
[2022-02-09 00:14:50,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591517491] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:50,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-09 00:14:50,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2022-02-09 00:14:50,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951058387]
[2022-02-09 00:14:50,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:50,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2022-02-09 00:14:50,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:50,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2022-02-09 00:14:50,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210
[2022-02-09 00:14:50,174 INFO L87 Difference]: Start difference. First operand 4124 states and 8266 transitions. Second operand has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 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)
[2022-02-09 00:14:50,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:50,633 INFO L93 Difference]: Finished difference Result 3495 states and 6986 transitions.
[2022-02-09 00:14:50,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2022-02-09 00:14:50,634 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96
[2022-02-09 00:14:50,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:50,641 INFO L225 Difference]: With dead ends: 3495
[2022-02-09 00:14:50,642 INFO L226 Difference]: Without dead ends: 3180
[2022-02-09 00:14:50,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756
[2022-02-09 00:14:50,643 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 662 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:50,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [662 Valid, 1498 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-02-09 00:14:50,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states.
[2022-02-09 00:14:50,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 3172.
[2022-02-09 00:14:50,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 3170 states have (on average 2.00410094637224) internal successors, (6353), 3171 states have internal predecessors, (6353), 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)
[2022-02-09 00:14:50,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 6353 transitions.
[2022-02-09 00:14:50,692 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 6353 transitions. Word has length 96
[2022-02-09 00:14:50,692 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:50,692 INFO L470 AbstractCegarLoop]: Abstraction has 3172 states and 6353 transitions.
[2022-02-09 00:14:50,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 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)
[2022-02-09 00:14:50,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 6353 transitions.
[2022-02-09 00:14:50,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:14:50,696 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:50,696 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:50,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49
[2022-02-09 00:14:50,697 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:50,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:50,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1471731716, now seen corresponding path program 5 times
[2022-02-09 00:14:50,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:50,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081696419]
[2022-02-09 00:14:50,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:50,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:51,073 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:51,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:51,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081696419]
[2022-02-09 00:14:51,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081696419] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:14:51,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162214865]
[2022-02-09 00:14:51,073 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-09 00:14:51,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:14:51,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:14:51,075 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:14:51,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-02-09 00:14:51,187 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 00:14:51,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:14:51,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:14:51,193 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:14:51,338 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:14:51,339 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:14:51,484 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:14:51,604 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:14:51,919 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:14:52,309 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:14:52,463 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:14:52,494 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:52,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-02-09 00:14:52,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162214865] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-09 00:14:52,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-02-09 00:14:52,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [27] total 47
[2022-02-09 00:14:52,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703958126]
[2022-02-09 00:14:52,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-09 00:14:52,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2022-02-09 00:14:52,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:52,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2022-02-09 00:14:52,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1919, Unknown=0, NotChecked=0, Total=2162
[2022-02-09 00:14:52,496 INFO L87 Difference]: Start difference. First operand 3172 states and 6353 transitions. Second operand has 22 states, 22 states have (on average 4.818181818181818) internal successors, (106), 22 states have internal predecessors, (106), 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)
[2022-02-09 00:14:54,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:14:54,451 INFO L93 Difference]: Finished difference Result 6982 states and 14000 transitions.
[2022-02-09 00:14:54,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states.
[2022-02-09 00:14:54,451 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.818181818181818) internal successors, (106), 22 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:14:54,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:14:54,466 INFO L225 Difference]: With dead ends: 6982
[2022-02-09 00:14:54,466 INFO L226 Difference]: Without dead ends: 6982
[2022-02-09 00:14:54,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1330, Invalid=4832, Unknown=0, NotChecked=0, Total=6162
[2022-02-09 00:14:54,468 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 1907 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:14:54,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1907 Valid, 2514 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-09 00:14:54,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6982 states.
[2022-02-09 00:14:54,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6982 to 3300.
[2022-02-09 00:14:54,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3298 states have (on average 2.0051546391752577) internal successors, (6613), 3299 states have internal predecessors, (6613), 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)
[2022-02-09 00:14:54,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 6613 transitions.
[2022-02-09 00:14:54,547 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 6613 transitions. Word has length 106
[2022-02-09 00:14:54,547 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:14:54,547 INFO L470 AbstractCegarLoop]: Abstraction has 3300 states and 6613 transitions.
[2022-02-09 00:14:54,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.818181818181818) internal successors, (106), 22 states have internal predecessors, (106), 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)
[2022-02-09 00:14:54,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 6613 transitions.
[2022-02-09 00:14:54,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:14:54,551 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:14:54,551 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:14:54,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-02-09 00:14:54,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:14:54,754 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:14:54,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:14:54,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1681139458, now seen corresponding path program 6 times
[2022-02-09 00:14:54,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:14:54,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437024606]
[2022-02-09 00:14:54,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:14:54,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:14:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:14:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:55,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:14:55,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437024606]
[2022-02-09 00:14:55,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437024606] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:14:55,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143247792]
[2022-02-09 00:14:55,159 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-09 00:14:55,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:14:55,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:14:55,161 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:14:55,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-02-09 00:14:55,286 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2022-02-09 00:14:55,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:14:55,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:14:55,312 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:14:55,446 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:14:55,446 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:14:55,575 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:14:55,669 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:14:55,976 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:14:56,430 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:14:56,531 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:14:56,563 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:56,563 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:14:57,284 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_916 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_916) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:14:57,323 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:14:57,323 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:14:57,330 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:14:57,331 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:14:57,335 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:14:57,503 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:14:57,503 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:14:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:14:57,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143247792] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:14:57,517 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:14:57,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 22, 22] total 62
[2022-02-09 00:14:57,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828008024]
[2022-02-09 00:14:57,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:14:57,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states
[2022-02-09 00:14:57,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:14:57,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants.
[2022-02-09 00:14:57,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=3277, Unknown=1, NotChecked=118, Total=3782
[2022-02-09 00:14:57,519 INFO L87 Difference]: Start difference. First operand 3300 states and 6613 transitions. Second operand has 62 states, 62 states have (on average 4.370967741935484) internal successors, (271), 62 states have internal predecessors, (271), 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)
[2022-02-09 00:15:04,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:15:04,094 INFO L93 Difference]: Finished difference Result 12947 states and 26179 transitions.
[2022-02-09 00:15:04,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states.
[2022-02-09 00:15:04,095 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 4.370967741935484) internal successors, (271), 62 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:15:04,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:15:04,127 INFO L225 Difference]: With dead ends: 12947
[2022-02-09 00:15:04,127 INFO L226 Difference]: Without dead ends: 12947
[2022-02-09 00:15:04,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 194 SyntacticMatches, 9 SemanticMatches, 160 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8181 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=4214, Invalid=21549, Unknown=1, NotChecked=318, Total=26082
[2022-02-09 00:15:04,130 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 4671 mSDsluCounter, 10297 mSDsCounter, 0 mSdLazyCounter, 3199 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4671 SdHoareTripleChecker+Valid, 10740 SdHoareTripleChecker+Invalid, 4448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1163 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:15:04,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4671 Valid, 10740 Invalid, 4448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3199 Invalid, 0 Unknown, 1163 Unchecked, 1.4s Time]
[2022-02-09 00:15:04,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12947 states.
[2022-02-09 00:15:04,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12947 to 2581.
[2022-02-09 00:15:04,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2581 states, 2579 states have (on average 1.9945715393563397) internal successors, (5144), 2580 states have internal predecessors, (5144), 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)
[2022-02-09 00:15:04,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 5144 transitions.
[2022-02-09 00:15:04,237 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 5144 transitions. Word has length 106
[2022-02-09 00:15:04,237 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:15:04,237 INFO L470 AbstractCegarLoop]: Abstraction has 2581 states and 5144 transitions.
[2022-02-09 00:15:04,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 4.370967741935484) internal successors, (271), 62 states have internal predecessors, (271), 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)
[2022-02-09 00:15:04,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 5144 transitions.
[2022-02-09 00:15:04,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:15:04,239 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:15:04,240 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:15:04,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2022-02-09 00:15:04,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:15:04,441 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:15:04,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:15:04,441 INFO L85 PathProgramCache]: Analyzing trace with hash -207921658, now seen corresponding path program 7 times
[2022-02-09 00:15:04,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:15:04,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414388860]
[2022-02-09 00:15:04,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:15:04,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:15:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:15:04,870 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:15:04,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:15:04,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414388860]
[2022-02-09 00:15:04,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414388860] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:15:04,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684577086]
[2022-02-09 00:15:04,871 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-02-09 00:15:04,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:15:04,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:15:04,872 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:15:04,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-02-09 00:15:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:15:04,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:15:04,998 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:15:05,135 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:15:05,136 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:15:05,273 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:15:05,370 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:15:05,891 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:15:06,339 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:15:06,402 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:15:06,434 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:15:06,434 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:15:14,322 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_967 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_967) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:15:14,362 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:15:14,362 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:15:14,372 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:15:14,372 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:15:14,377 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:15:14,585 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:15:14,585 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:15:14,596 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:15:14,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684577086] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:15:14,596 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:15:14,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:15:14,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051525907]
[2022-02-09 00:15:14,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:15:14,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:15:14,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:15:14,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:15:14,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=3553, Unknown=4, NotChecked=122, Total=4032
[2022-02-09 00:15:14,599 INFO L87 Difference]: Start difference. First operand 2581 states and 5144 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:15:18,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:15:18,805 INFO L93 Difference]: Finished difference Result 4446 states and 8836 transitions.
[2022-02-09 00:15:18,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states.
[2022-02-09 00:15:18,806 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:15:18,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:15:18,815 INFO L225 Difference]: With dead ends: 4446
[2022-02-09 00:15:18,815 INFO L226 Difference]: Without dead ends: 4446
[2022-02-09 00:15:18,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 178 SyntacticMatches, 11 SemanticMatches, 106 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3334 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=1941, Invalid=9401, Unknown=4, NotChecked=210, Total=11556
[2022-02-09 00:15:18,817 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 3221 mSDsluCounter, 6352 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 970 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2022-02-09 00:15:18,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3221 Valid, 6652 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1617 Invalid, 0 Unknown, 970 Unchecked, 0.9s Time]
[2022-02-09 00:15:18,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states.
[2022-02-09 00:15:18,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 2577.
[2022-02-09 00:15:18,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2577 states, 2575 states have (on average 1.9945631067961165) internal successors, (5136), 2576 states have internal predecessors, (5136), 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)
[2022-02-09 00:15:18,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 5136 transitions.
[2022-02-09 00:15:18,864 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 5136 transitions. Word has length 106
[2022-02-09 00:15:18,865 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:15:18,865 INFO L470 AbstractCegarLoop]: Abstraction has 2577 states and 5136 transitions.
[2022-02-09 00:15:18,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:15:18,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 5136 transitions.
[2022-02-09 00:15:18,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:15:18,867 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:15:18,867 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:15:18,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2022-02-09 00:15:19,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:15:19,068 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:15:19,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:15:19,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1735581496, now seen corresponding path program 8 times
[2022-02-09 00:15:19,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:15:19,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440576870]
[2022-02-09 00:15:19,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:15:19,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:15:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:15:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:15:19,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:15:19,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440576870]
[2022-02-09 00:15:19,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440576870] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:15:19,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887817610]
[2022-02-09 00:15:19,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-09 00:15:19,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:15:19,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:15:19,558 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:15:19,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2022-02-09 00:15:19,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 00:15:19,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:15:19,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:15:19,689 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:15:19,888 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:15:19,889 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:15:20,042 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:15:20,153 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:15:20,779 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:15:21,292 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:15:21,362 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:15:21,400 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:15:21,400 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:15:33,487 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1018 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1018) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:15:33,566 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:15:33,567 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:15:33,579 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:15:33,580 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:15:33,585 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:15:33,817 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:15:33,818 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:15:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:15:33,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887817610] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:15:33,828 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:15:33,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:15:33,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413457828]
[2022-02-09 00:15:33,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:15:33,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:15:33,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:15:33,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:15:33,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=3542, Unknown=5, NotChecked=122, Total=4032
[2022-02-09 00:15:33,831 INFO L87 Difference]: Start difference. First operand 2577 states and 5136 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:15:38,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:15:38,783 INFO L93 Difference]: Finished difference Result 7327 states and 14654 transitions.
[2022-02-09 00:15:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states.
[2022-02-09 00:15:38,784 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:15:38,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:15:38,799 INFO L225 Difference]: With dead ends: 7327
[2022-02-09 00:15:38,799 INFO L226 Difference]: Without dead ends: 7327
[2022-02-09 00:15:38,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 185 SyntacticMatches, 19 SemanticMatches, 124 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5363 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=2174, Invalid=13325, Unknown=5, NotChecked=246, Total=15750
[2022-02-09 00:15:38,802 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 2652 mSDsluCounter, 7018 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 7367 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1503 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2022-02-09 00:15:38,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2652 Valid, 7367 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1558 Invalid, 0 Unknown, 1503 Unchecked, 0.9s Time]
[2022-02-09 00:15:38,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7327 states.
[2022-02-09 00:15:38,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7327 to 2580.
[2022-02-09 00:15:38,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2580 states, 2578 states have (on average 1.9945694336695112) internal successors, (5142), 2579 states have internal predecessors, (5142), 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)
[2022-02-09 00:15:38,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2580 states to 2580 states and 5142 transitions.
[2022-02-09 00:15:38,889 INFO L78 Accepts]: Start accepts. Automaton has 2580 states and 5142 transitions. Word has length 106
[2022-02-09 00:15:38,889 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:15:38,889 INFO L470 AbstractCegarLoop]: Abstraction has 2580 states and 5142 transitions.
[2022-02-09 00:15:38,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:15:38,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2580 states and 5142 transitions.
[2022-02-09 00:15:38,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:15:38,891 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:15:38,891 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:15:38,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2022-02-09 00:15:39,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53
[2022-02-09 00:15:39,093 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:15:39,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:15:39,094 INFO L85 PathProgramCache]: Analyzing trace with hash 444086522, now seen corresponding path program 9 times
[2022-02-09 00:15:39,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:15:39,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782480799]
[2022-02-09 00:15:39,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:15:39,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:15:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:15:39,588 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:15:39,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:15:39,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782480799]
[2022-02-09 00:15:39,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782480799] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:15:39,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641874320]
[2022-02-09 00:15:39,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-09 00:15:39,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:15:39,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:15:39,592 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:15:39,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2022-02-09 00:15:39,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2022-02-09 00:15:39,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:15:39,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:15:39,719 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:15:39,868 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:15:39,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:15:40,029 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:15:40,162 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:15:40,687 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:15:41,154 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:15:41,221 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:15:41,256 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:15:41,256 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:15:46,424 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1069 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1069) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:15:46,454 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:15:46,454 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:15:46,462 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:15:46,463 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:15:46,466 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:15:46,655 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:15:46,656 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:15:46,665 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:15:46,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641874320] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:15:46,665 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:15:46,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:15:46,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454730095]
[2022-02-09 00:15:46,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:15:46,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:15:46,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:15:46,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:15:46,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=3560, Unknown=2, NotChecked=122, Total=4032
[2022-02-09 00:15:46,667 INFO L87 Difference]: Start difference. First operand 2580 states and 5142 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:15:54,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:15:54,083 INFO L93 Difference]: Finished difference Result 6230 states and 12435 transitions.
[2022-02-09 00:15:54,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states.
[2022-02-09 00:15:54,083 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:15:54,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:15:54,091 INFO L225 Difference]: With dead ends: 6230
[2022-02-09 00:15:54,091 INFO L226 Difference]: Without dead ends: 6230
[2022-02-09 00:15:54,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 183 SyntacticMatches, 21 SemanticMatches, 145 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 6875 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=4008, Invalid=17164, Unknown=2, NotChecked=288, Total=21462
[2022-02-09 00:15:54,093 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 4191 mSDsluCounter, 7488 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4191 SdHoareTripleChecker+Valid, 7829 SdHoareTripleChecker+Invalid, 4047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1939 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:15:54,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4191 Valid, 7829 Invalid, 4047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1941 Invalid, 0 Unknown, 1939 Unchecked, 1.1s Time]
[2022-02-09 00:15:54,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6230 states.
[2022-02-09 00:15:54,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6230 to 2573.
[2022-02-09 00:15:54,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2571 states have (on average 1.9945546479968883) internal successors, (5128), 2572 states have internal predecessors, (5128), 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)
[2022-02-09 00:15:54,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 5128 transitions.
[2022-02-09 00:15:54,127 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 5128 transitions. Word has length 106
[2022-02-09 00:15:54,127 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:15:54,127 INFO L470 AbstractCegarLoop]: Abstraction has 2573 states and 5128 transitions.
[2022-02-09 00:15:54,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:15:54,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 5128 transitions.
[2022-02-09 00:15:54,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:15:54,128 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:15:54,128 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:15:54,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2022-02-09 00:15:54,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:15:54,329 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:15:54,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:15:54,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1988436372, now seen corresponding path program 10 times
[2022-02-09 00:15:54,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:15:54,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641351109]
[2022-02-09 00:15:54,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:15:54,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:15:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:15:54,809 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:15:54,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:15:54,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641351109]
[2022-02-09 00:15:54,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641351109] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:15:54,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146995944]
[2022-02-09 00:15:54,810 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-09 00:15:54,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:15:54,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:15:54,811 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:15:54,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2022-02-09 00:15:54,920 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-09 00:15:54,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:15:54,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 58 conjunts are in the unsatisfiable core
[2022-02-09 00:15:54,925 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:15:55,064 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:15:55,064 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:15:55,205 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:15:55,311 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:15:55,836 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:15:56,282 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:15:56,405 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:15:56,405 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:16:15,173 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1120 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1120) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:16:15,228 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:16:15,228 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:16:15,243 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:16:15,244 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:16:15,251 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:16:15,596 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:16:15,597 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:16:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:16:15,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146995944] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:16:15,610 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:16:15,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:16:15,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367434850]
[2022-02-09 00:16:15,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:16:15,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:16:15,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:16:15,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:16:15,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=3514, Unknown=5, NotChecked=122, Total=4032
[2022-02-09 00:16:15,613 INFO L87 Difference]: Start difference. First operand 2573 states and 5128 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:16:59,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:16:59,070 INFO L93 Difference]: Finished difference Result 15296 states and 30680 transitions.
[2022-02-09 00:16:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states.
[2022-02-09 00:16:59,070 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:16:59,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:16:59,105 INFO L225 Difference]: With dead ends: 15296
[2022-02-09 00:16:59,105 INFO L226 Difference]: Without dead ends: 15296
[2022-02-09 00:16:59,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 189 SyntacticMatches, 6 SemanticMatches, 168 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 9748 ImplicationChecksByTransitivity, 59.0s TimeCoverageRelationStatistics Valid=3634, Invalid=24749, Unknown=13, NotChecked=334, Total=28730
[2022-02-09 00:16:59,110 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 3308 mSDsluCounter, 13982 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3308 SdHoareTripleChecker+Valid, 14398 SdHoareTripleChecker+Invalid, 6334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3473 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2022-02-09 00:16:59,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3308 Valid, 14398 Invalid, 6334 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 2812 Invalid, 0 Unknown, 3473 Unchecked, 2.9s Time]
[2022-02-09 00:16:59,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15296 states.
[2022-02-09 00:16:59,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15296 to 2599.
[2022-02-09 00:16:59,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 2597 states have (on average 1.993068925683481) internal successors, (5176), 2598 states have internal predecessors, (5176), 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)
[2022-02-09 00:16:59,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 5176 transitions.
[2022-02-09 00:16:59,242 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 5176 transitions. Word has length 106
[2022-02-09 00:16:59,242 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:16:59,242 INFO L470 AbstractCegarLoop]: Abstraction has 2599 states and 5176 transitions.
[2022-02-09 00:16:59,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:16:59,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 5176 transitions.
[2022-02-09 00:16:59,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:16:59,244 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:16:59,245 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:16:59,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2022-02-09 00:16:59,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55
[2022-02-09 00:16:59,446 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:16:59,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:16:59,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1681124850, now seen corresponding path program 11 times
[2022-02-09 00:16:59,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:16:59,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589328774]
[2022-02-09 00:16:59,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:16:59,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:16:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:17:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:17:00,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:17:00,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589328774]
[2022-02-09 00:17:00,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589328774] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:17:00,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562044231]
[2022-02-09 00:17:00,207 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-09 00:17:00,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:17:00,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:17:00,209 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:17:00,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2022-02-09 00:17:00,331 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 00:17:00,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:17:00,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:17:00,336 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:17:00,557 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:17:00,557 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:17:00,775 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:17:00,943 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:17:01,913 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:17:02,656 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:17:02,772 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:17:02,832 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:17:02,833 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:17:18,022 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1171 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1171) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:17:18,071 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:17:18,072 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:17:18,083 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:17:18,084 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:17:18,088 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:17:18,369 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:17:18,370 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:17:18,381 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:17:18,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562044231] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:17:18,382 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:17:18,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:17:18,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040172348]
[2022-02-09 00:17:18,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:17:18,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:17:18,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:17:18,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:17:18,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=3545, Unknown=6, NotChecked=122, Total=4032
[2022-02-09 00:17:18,384 INFO L87 Difference]: Start difference. First operand 2599 states and 5176 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:17:30,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:17:30,426 INFO L93 Difference]: Finished difference Result 6773 states and 13528 transitions.
[2022-02-09 00:17:30,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states.
[2022-02-09 00:17:30,427 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:17:30,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:17:30,446 INFO L225 Difference]: With dead ends: 6773
[2022-02-09 00:17:30,446 INFO L226 Difference]: Without dead ends: 6773
[2022-02-09 00:17:30,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 181 SyntacticMatches, 37 SemanticMatches, 125 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6117 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=2169, Invalid=13579, Unknown=6, NotChecked=248, Total=16002
[2022-02-09 00:17:30,449 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 2266 mSDsluCounter, 10359 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 10775 SdHoareTripleChecker+Invalid, 3613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1408 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2022-02-09 00:17:30,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2266 Valid, 10775 Invalid, 3613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2155 Invalid, 0 Unknown, 1408 Unchecked, 2.0s Time]
[2022-02-09 00:17:30,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6773 states.
[2022-02-09 00:17:30,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6773 to 2602.
[2022-02-09 00:17:30,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 2600 states have (on average 1.993076923076923) internal successors, (5182), 2601 states have internal predecessors, (5182), 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)
[2022-02-09 00:17:30,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 5182 transitions.
[2022-02-09 00:17:30,523 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 5182 transitions. Word has length 106
[2022-02-09 00:17:30,523 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:17:30,524 INFO L470 AbstractCegarLoop]: Abstraction has 2602 states and 5182 transitions.
[2022-02-09 00:17:30,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:17:30,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 5182 transitions.
[2022-02-09 00:17:30,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:17:30,527 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:17:30,528 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:17:30,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2022-02-09 00:17:30,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56
[2022-02-09 00:17:30,748 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:17:30,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:17:30,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1322347472, now seen corresponding path program 12 times
[2022-02-09 00:17:30,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:17:30,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689787455]
[2022-02-09 00:17:30,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:17:30,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:17:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:17:31,529 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:17:31,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:17:31,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689787455]
[2022-02-09 00:17:31,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689787455] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:17:31,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685063830]
[2022-02-09 00:17:31,530 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-09 00:17:31,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:17:31,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:17:31,532 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:17:31,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2022-02-09 00:17:31,666 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2022-02-09 00:17:31,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:17:31,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:17:31,672 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:17:31,913 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:17:31,913 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:17:32,197 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:17:32,408 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:17:33,321 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:17:34,147 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:17:34,255 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:17:34,323 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:17:34,323 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:17:44,524 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1222 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1222) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:17:44,577 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:17:44,577 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:17:44,589 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:17:44,589 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:17:44,596 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:17:44,887 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:17:44,887 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:17:44,898 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:17:44,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685063830] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:17:44,899 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:17:44,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:17:44,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162505584]
[2022-02-09 00:17:44,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:17:44,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:17:44,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:17:44,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:17:44,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=3554, Unknown=4, NotChecked=122, Total=4032
[2022-02-09 00:17:44,901 INFO L87 Difference]: Start difference. First operand 2602 states and 5182 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:17:57,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:17:57,123 INFO L93 Difference]: Finished difference Result 5834 states and 11662 transitions.
[2022-02-09 00:17:57,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states.
[2022-02-09 00:17:57,123 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:17:57,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:17:57,131 INFO L225 Difference]: With dead ends: 5834
[2022-02-09 00:17:57,132 INFO L226 Difference]: Without dead ends: 5834
[2022-02-09 00:17:57,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 186 SyntacticMatches, 4 SemanticMatches, 115 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3779 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=1769, Invalid=11568, Unknown=7, NotChecked=228, Total=13572
[2022-02-09 00:17:57,134 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1897 mSDsluCounter, 10193 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1897 SdHoareTripleChecker+Valid, 10577 SdHoareTripleChecker+Invalid, 3905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1571 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2022-02-09 00:17:57,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1897 Valid, 10577 Invalid, 3905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2316 Invalid, 0 Unknown, 1571 Unchecked, 1.7s Time]
[2022-02-09 00:17:57,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5834 states.
[2022-02-09 00:17:57,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 2585.
[2022-02-09 00:17:57,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2585 states, 2583 states have (on average 1.9930313588850175) internal successors, (5148), 2584 states have internal predecessors, (5148), 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)
[2022-02-09 00:17:57,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2585 states to 2585 states and 5148 transitions.
[2022-02-09 00:17:57,181 INFO L78 Accepts]: Start accepts. Automaton has 2585 states and 5148 transitions. Word has length 106
[2022-02-09 00:17:57,181 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:17:57,181 INFO L470 AbstractCegarLoop]: Abstraction has 2585 states and 5148 transitions.
[2022-02-09 00:17:57,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:17:57,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2585 states and 5148 transitions.
[2022-02-09 00:17:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:17:57,183 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:17:57,183 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:17:57,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2022-02-09 00:17:57,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57
[2022-02-09 00:17:57,384 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:17:57,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:17:57,384 INFO L85 PathProgramCache]: Analyzing trace with hash -525088272, now seen corresponding path program 13 times
[2022-02-09 00:17:57,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:17:57,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760591168]
[2022-02-09 00:17:57,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:17:57,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:17:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:17:58,044 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:17:58,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:17:58,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760591168]
[2022-02-09 00:17:58,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760591168] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:17:58,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053605332]
[2022-02-09 00:17:58,045 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-02-09 00:17:58,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:17:58,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:17:58,046 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:17:58,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2022-02-09 00:17:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:17:58,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:17:58,156 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:17:58,320 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:17:58,321 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:17:58,560 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:17:58,691 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:17:59,373 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:17:59,909 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:17:59,983 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:18:00,024 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:18:00,025 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:18:22,225 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1273 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1273) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:18:22,258 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:18:22,258 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:18:22,267 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:18:22,267 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:18:22,271 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:18:22,487 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:18:22,487 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:18:22,497 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:18:22,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053605332] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:18:22,498 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:18:22,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:18:22,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064625972]
[2022-02-09 00:18:22,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:18:22,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:18:22,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:18:22,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:18:22,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=376, Invalid=3526, Unknown=8, NotChecked=122, Total=4032
[2022-02-09 00:18:22,500 INFO L87 Difference]: Start difference. First operand 2585 states and 5148 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:19:37,492 WARN L228 SmtUtils]: Spent 6.15s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-02-09 00:19:38,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:19:38,399 INFO L93 Difference]: Finished difference Result 15288 states and 30642 transitions.
[2022-02-09 00:19:38,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states.
[2022-02-09 00:19:38,400 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:19:38,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:19:38,427 INFO L225 Difference]: With dead ends: 15288
[2022-02-09 00:19:38,427 INFO L226 Difference]: Without dead ends: 15288
[2022-02-09 00:19:38,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 187 SyntacticMatches, 7 SemanticMatches, 164 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9215 ImplicationChecksByTransitivity, 96.1s TimeCoverageRelationStatistics Valid=3498, Invalid=23545, Unknown=21, NotChecked=326, Total=27390
[2022-02-09 00:19:38,430 INFO L933 BasicCegarLoop]: 477 mSDtfsCounter, 3390 mSDsluCounter, 14544 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 15019 SdHoareTripleChecker+Invalid, 6387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3834 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2022-02-09 00:19:38,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3390 Valid, 15019 Invalid, 6387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2471 Invalid, 0 Unknown, 3834 Unchecked, 2.0s Time]
[2022-02-09 00:19:38,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15288 states.
[2022-02-09 00:19:38,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15288 to 2612.
[2022-02-09 00:19:38,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 2610 states have (on average 1.993103448275862) internal successors, (5202), 2611 states have internal predecessors, (5202), 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)
[2022-02-09 00:19:38,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 5202 transitions.
[2022-02-09 00:19:38,535 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 5202 transitions. Word has length 106
[2022-02-09 00:19:38,535 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:19:38,535 INFO L470 AbstractCegarLoop]: Abstraction has 2612 states and 5202 transitions.
[2022-02-09 00:19:38,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:19:38,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 5202 transitions.
[2022-02-09 00:19:38,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:19:38,538 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:19:38,539 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:19:38,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2022-02-09 00:19:38,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58
[2022-02-09 00:19:38,752 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:19:38,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:19:38,752 INFO L85 PathProgramCache]: Analyzing trace with hash -373288528, now seen corresponding path program 14 times
[2022-02-09 00:19:38,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:19:38,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085907655]
[2022-02-09 00:19:38,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:19:38,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:19:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:19:40,149 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:19:40,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:19:40,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085907655]
[2022-02-09 00:19:40,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085907655] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:19:40,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859756670]
[2022-02-09 00:19:40,150 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-09 00:19:40,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:19:40,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:19:40,152 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:19:40,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2022-02-09 00:19:40,287 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 00:19:40,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:19:40,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:19:40,293 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:19:40,836 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:19:40,836 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:19:41,350 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:19:41,681 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:19:43,769 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:19:45,419 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:19:45,681 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:19:45,813 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:19:45,814 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:20:01,111 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1324 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1324) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:20:01,198 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:20:01,198 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:20:01,232 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:20:01,233 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:20:01,243 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:20:01,998 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:20:01,998 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:20:02,013 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:20:02,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859756670] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:20:02,013 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:20:02,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:20:02,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204041349]
[2022-02-09 00:20:02,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:20:02,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:20:02,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:20:02,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:20:02,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=3563, Unknown=5, NotChecked=122, Total=4032
[2022-02-09 00:20:02,016 INFO L87 Difference]: Start difference. First operand 2612 states and 5202 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:20:07,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:20:07,576 INFO L93 Difference]: Finished difference Result 5081 states and 10132 transitions.
[2022-02-09 00:20:07,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states.
[2022-02-09 00:20:07,577 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:20:07,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:20:07,584 INFO L225 Difference]: With dead ends: 5081
[2022-02-09 00:20:07,585 INFO L226 Difference]: Without dead ends: 5081
[2022-02-09 00:20:07,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 176 SyntacticMatches, 8 SemanticMatches, 84 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2259 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=789, Invalid=6350, Unknown=5, NotChecked=166, Total=7310
[2022-02-09 00:20:07,586 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 1231 mSDsluCounter, 6687 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 7017 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1047 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2022-02-09 00:20:07,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1231 Valid, 7017 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 898 Invalid, 0 Unknown, 1047 Unchecked, 1.7s Time]
[2022-02-09 00:20:07,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5081 states.
[2022-02-09 00:20:07,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5081 to 2803.
[2022-02-09 00:20:07,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2801 states have (on average 1.9892895394501964) internal successors, (5572), 2802 states have internal predecessors, (5572), 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)
[2022-02-09 00:20:07,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 5572 transitions.
[2022-02-09 00:20:07,632 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 5572 transitions. Word has length 106
[2022-02-09 00:20:07,632 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:20:07,632 INFO L470 AbstractCegarLoop]: Abstraction has 2803 states and 5572 transitions.
[2022-02-09 00:20:07,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:20:07,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 5572 transitions.
[2022-02-09 00:20:07,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:20:07,634 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:20:07,634 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:20:07,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2022-02-09 00:20:07,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:20:07,835 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:20:07,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:20:07,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1664783502, now seen corresponding path program 15 times
[2022-02-09 00:20:07,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:20:07,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057053668]
[2022-02-09 00:20:07,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:20:07,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:20:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:20:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:20:09,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:20:09,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057053668]
[2022-02-09 00:20:09,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057053668] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:20:09,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973645590]
[2022-02-09 00:20:09,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-09 00:20:09,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:20:09,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:20:09,033 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:20:09,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2022-02-09 00:20:09,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2022-02-09 00:20:09,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:20:09,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:20:09,156 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:20:09,336 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:20:09,337 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:20:09,619 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:20:09,797 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:20:10,934 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:20:11,797 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:20:11,967 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:20:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:20:12,064 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:20:23,914 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1375 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1375) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:20:23,976 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:20:23,976 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:20:23,996 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:20:23,996 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:20:24,003 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:20:24,508 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:20:24,509 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:20:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:20:24,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973645590] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:20:24,521 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:20:24,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:20:24,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120753268]
[2022-02-09 00:20:24,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:20:24,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:20:24,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:20:24,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:20:24,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=3571, Unknown=3, NotChecked=122, Total=4032
[2022-02-09 00:20:24,523 INFO L87 Difference]: Start difference. First operand 2803 states and 5572 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:20:39,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:20:39,040 INFO L93 Difference]: Finished difference Result 7736 states and 15421 transitions.
[2022-02-09 00:20:39,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states.
[2022-02-09 00:20:39,040 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:20:39,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:20:39,049 INFO L225 Difference]: With dead ends: 7736
[2022-02-09 00:20:39,049 INFO L226 Difference]: Without dead ends: 7736
[2022-02-09 00:20:39,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 185 SyntacticMatches, 12 SemanticMatches, 133 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 5688 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=2147, Invalid=15676, Unknown=3, NotChecked=264, Total=18090
[2022-02-09 00:20:39,051 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 2386 mSDsluCounter, 14997 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2386 SdHoareTripleChecker+Valid, 15518 SdHoareTripleChecker+Invalid, 5168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3013 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2022-02-09 00:20:39,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2386 Valid, 15518 Invalid, 5168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2083 Invalid, 0 Unknown, 3013 Unchecked, 3.2s Time]
[2022-02-09 00:20:39,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7736 states.
[2022-02-09 00:20:39,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7736 to 2982.
[2022-02-09 00:20:39,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2980 states have (on average 1.9875838926174496) internal successors, (5923), 2981 states have internal predecessors, (5923), 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)
[2022-02-09 00:20:39,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 5923 transitions.
[2022-02-09 00:20:39,096 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 5923 transitions. Word has length 106
[2022-02-09 00:20:39,096 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:20:39,096 INFO L470 AbstractCegarLoop]: Abstraction has 2982 states and 5923 transitions.
[2022-02-09 00:20:39,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:20:39,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 5923 transitions.
[2022-02-09 00:20:39,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:20:39,098 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:20:39,098 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:20:39,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2022-02-09 00:20:39,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:20:39,299 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:20:39,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:20:39,299 INFO L85 PathProgramCache]: Analyzing trace with hash 432684052, now seen corresponding path program 16 times
[2022-02-09 00:20:39,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:20:39,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304119098]
[2022-02-09 00:20:39,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:20:39,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:20:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:20:40,106 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:20:40,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:20:40,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304119098]
[2022-02-09 00:20:40,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304119098] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:20:40,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680898277]
[2022-02-09 00:20:40,106 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-09 00:20:40,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:20:40,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:20:40,108 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:20:40,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2022-02-09 00:20:40,231 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-09 00:20:40,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:20:40,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 58 conjunts are in the unsatisfiable core
[2022-02-09 00:20:40,236 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:20:40,473 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:20:40,474 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:20:40,672 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:20:40,823 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:20:41,749 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:20:42,518 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:20:42,745 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:20:42,745 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:20:57,014 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1426 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1426) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:20:57,081 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:20:57,081 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:20:57,098 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:20:57,098 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:20:57,105 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:20:57,564 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:20:57,565 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:20:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:20:57,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680898277] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:20:57,574 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:20:57,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:20:57,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551332050]
[2022-02-09 00:20:57,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:20:57,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:20:57,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:20:57,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:20:57,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=3497, Unknown=4, NotChecked=122, Total=4032
[2022-02-09 00:20:57,576 INFO L87 Difference]: Start difference. First operand 2982 states and 5923 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:21:08,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:21:08,597 INFO L93 Difference]: Finished difference Result 8245 states and 16400 transitions.
[2022-02-09 00:21:08,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states.
[2022-02-09 00:21:08,598 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:21:08,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:21:08,610 INFO L225 Difference]: With dead ends: 8245
[2022-02-09 00:21:08,610 INFO L226 Difference]: Without dead ends: 8245
[2022-02-09 00:21:08,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 185 SyntacticMatches, 10 SemanticMatches, 123 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 5012 ImplicationChecksByTransitivity, 23.6s TimeCoverageRelationStatistics Valid=2066, Invalid=13186, Unknown=4, NotChecked=244, Total=15500
[2022-02-09 00:21:08,612 INFO L933 BasicCegarLoop]: 534 mSDtfsCounter, 2219 mSDsluCounter, 13255 mSDsCounter, 0 mSdLazyCounter, 2231 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2219 SdHoareTripleChecker+Valid, 13783 SdHoareTripleChecker+Invalid, 4342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2074 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2022-02-09 00:21:08,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2219 Valid, 13783 Invalid, 4342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2231 Invalid, 0 Unknown, 2074 Unchecked, 2.4s Time]
[2022-02-09 00:21:08,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states.
[2022-02-09 00:21:08,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 3173.
[2022-02-09 00:21:08,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3173 states, 3171 states have (on average 1.9820245979186377) internal successors, (6285), 3172 states have internal predecessors, (6285), 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)
[2022-02-09 00:21:08,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 6285 transitions.
[2022-02-09 00:21:08,660 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 6285 transitions. Word has length 106
[2022-02-09 00:21:08,660 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:21:08,660 INFO L470 AbstractCegarLoop]: Abstraction has 3173 states and 6285 transitions.
[2022-02-09 00:21:08,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:21:08,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 6285 transitions.
[2022-02-09 00:21:08,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:21:08,662 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:21:08,662 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:21:08,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0
[2022-02-09 00:21:08,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:21:08,880 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:21:08,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:21:08,880 INFO L85 PathProgramCache]: Analyzing trace with hash 849782298, now seen corresponding path program 17 times
[2022-02-09 00:21:08,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:21:08,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697417570]
[2022-02-09 00:21:08,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:21:08,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:21:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:21:09,954 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:21:09,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:21:09,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697417570]
[2022-02-09 00:21:09,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697417570] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:21:09,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577419900]
[2022-02-09 00:21:09,954 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-09 00:21:09,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:21:09,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:21:09,956 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:21:09,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2022-02-09 00:21:10,102 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 00:21:10,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:21:10,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:21:10,106 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:21:10,421 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:21:10,421 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:21:10,640 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:21:10,832 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:21:11,894 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:21:12,779 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:21:12,966 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:21:13,023 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:21:13,023 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:21:39,114 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1477 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1477) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:21:39,158 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:21:39,159 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:21:39,173 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:21:39,174 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:21:39,179 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:21:39,542 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:21:39,543 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:21:39,552 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:21:39,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577419900] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:21:39,552 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:21:39,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:21:39,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732475205]
[2022-02-09 00:21:39,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:21:39,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:21:39,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:21:39,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:21:39,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=3534, Unknown=8, NotChecked=122, Total=4032
[2022-02-09 00:21:39,554 INFO L87 Difference]: Start difference. First operand 3173 states and 6285 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:21:53,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:21:53,845 INFO L93 Difference]: Finished difference Result 8868 states and 17681 transitions.
[2022-02-09 00:21:53,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states.
[2022-02-09 00:21:53,846 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:21:53,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:21:53,857 INFO L225 Difference]: With dead ends: 8868
[2022-02-09 00:21:53,857 INFO L226 Difference]: Without dead ends: 8868
[2022-02-09 00:21:53,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 185 SyntacticMatches, 27 SemanticMatches, 149 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7645 ImplicationChecksByTransitivity, 38.6s TimeCoverageRelationStatistics Valid=4005, Invalid=18341, Unknown=8, NotChecked=296, Total=22650
[2022-02-09 00:21:53,860 INFO L933 BasicCegarLoop]: 546 mSDtfsCounter, 3977 mSDsluCounter, 7883 mSDsCounter, 0 mSdLazyCounter, 2197 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3977 SdHoareTripleChecker+Valid, 8429 SdHoareTripleChecker+Invalid, 4143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 2197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1798 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2022-02-09 00:21:53,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3977 Valid, 8429 Invalid, 4143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 2197 Invalid, 0 Unknown, 1798 Unchecked, 2.8s Time]
[2022-02-09 00:21:53,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8868 states.
[2022-02-09 00:21:53,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8868 to 3249.
[2022-02-09 00:21:53,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 3247 states have (on average 1.9824453341546042) internal successors, (6437), 3248 states have internal predecessors, (6437), 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)
[2022-02-09 00:21:53,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 6437 transitions.
[2022-02-09 00:21:53,917 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 6437 transitions. Word has length 106
[2022-02-09 00:21:53,917 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:21:53,917 INFO L470 AbstractCegarLoop]: Abstraction has 3249 states and 6437 transitions.
[2022-02-09 00:21:53,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:21:53,917 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 6437 transitions.
[2022-02-09 00:21:53,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:21:53,919 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:21:53,919 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:21:53,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2022-02-09 00:21:54,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:21:54,138 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:21:54,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:21:54,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1001582042, now seen corresponding path program 18 times
[2022-02-09 00:21:54,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:21:54,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482106150]
[2022-02-09 00:21:54,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:21:54,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:21:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:21:55,170 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:21:55,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:21:55,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482106150]
[2022-02-09 00:21:55,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482106150] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:21:55,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144950728]
[2022-02-09 00:21:55,171 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-09 00:21:55,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:21:55,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:21:55,172 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:21:55,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2022-02-09 00:21:55,300 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2022-02-09 00:21:55,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:21:55,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:21:55,304 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:21:55,551 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:21:55,552 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:21:55,956 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:21:56,212 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:21:57,364 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:21:58,211 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:21:58,341 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:21:58,410 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:21:58,410 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:22:15,182 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1528 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1528) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:22:15,256 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:22:15,256 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:22:15,270 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:22:15,271 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:22:15,276 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:22:15,718 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:22:15,719 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:22:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:22:15,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144950728] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:22:15,730 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:22:15,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:22:15,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471173150]
[2022-02-09 00:22:15,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:22:15,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:22:15,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:22:15,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:22:15,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=340, Invalid=3564, Unknown=6, NotChecked=122, Total=4032
[2022-02-09 00:22:15,731 INFO L87 Difference]: Start difference. First operand 3249 states and 6437 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:23:35,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:23:35,363 INFO L93 Difference]: Finished difference Result 13398 states and 26729 transitions.
[2022-02-09 00:23:35,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states.
[2022-02-09 00:23:35,363 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:23:35,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:23:35,381 INFO L225 Difference]: With dead ends: 13398
[2022-02-09 00:23:35,381 INFO L226 Difference]: Without dead ends: 13398
[2022-02-09 00:23:35,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 198 SyntacticMatches, 46 SemanticMatches, 181 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 13723 ImplicationChecksByTransitivity, 94.2s TimeCoverageRelationStatistics Valid=5272, Invalid=27650, Unknown=24, NotChecked=360, Total=33306
[2022-02-09 00:23:35,384 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 6004 mSDsluCounter, 10400 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6004 SdHoareTripleChecker+Valid, 10790 SdHoareTripleChecker+Invalid, 4987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2584 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2022-02-09 00:23:35,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6004 Valid, 10790 Invalid, 4987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 2206 Invalid, 0 Unknown, 2584 Unchecked, 3.0s Time]
[2022-02-09 00:23:35,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13398 states.
[2022-02-09 00:23:35,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13398 to 3244.
[2022-02-09 00:23:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3244 states, 3242 states have (on average 1.9827267119062306) internal successors, (6428), 3243 states have internal predecessors, (6428), 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)
[2022-02-09 00:23:35,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3244 states to 3244 states and 6428 transitions.
[2022-02-09 00:23:35,457 INFO L78 Accepts]: Start accepts. Automaton has 3244 states and 6428 transitions. Word has length 106
[2022-02-09 00:23:35,457 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:23:35,457 INFO L470 AbstractCegarLoop]: Abstraction has 3244 states and 6428 transitions.
[2022-02-09 00:23:35,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:23:35,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3244 states and 6428 transitions.
[2022-02-09 00:23:35,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-09 00:23:35,459 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:23:35,459 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:23:35,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0
[2022-02-09 00:23:35,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:23:35,660 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:23:35,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:23:35,661 INFO L85 PathProgramCache]: Analyzing trace with hash -289912932, now seen corresponding path program 19 times
[2022-02-09 00:23:35,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:23:35,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032587451]
[2022-02-09 00:23:35,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:23:35,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:23:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:23:36,740 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:23:36,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:23:36,741 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032587451]
[2022-02-09 00:23:36,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032587451] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:23:36,741 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069935533]
[2022-02-09 00:23:36,741 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-02-09 00:23:36,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:23:36,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:23:36,742 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:23:36,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2022-02-09 00:23:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:23:36,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:23:36,877 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:23:37,108 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:23:37,109 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:23:37,326 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:23:37,468 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:23:38,333 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:23:39,124 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:23:39,237 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:23:39,305 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:23:39,305 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:23:53,190 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1579 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1579) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:23:53,231 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:23:53,232 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:23:53,251 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:23:53,251 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:23:53,258 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:23:53,561 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:23:53,561 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:23:53,573 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:23:53,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069935533] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:23:53,573 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:23:53,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:23:53,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502416026]
[2022-02-09 00:23:53,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:23:53,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:23:53,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:23:53,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:23:53,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=3569, Unknown=5, NotChecked=122, Total=4032
[2022-02-09 00:23:53,575 INFO L87 Difference]: Start difference. First operand 3244 states and 6428 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:24:17,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:24:17,229 INFO L93 Difference]: Finished difference Result 10293 states and 20480 transitions.
[2022-02-09 00:24:17,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states.
[2022-02-09 00:24:17,229 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106
[2022-02-09 00:24:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:24:17,241 INFO L225 Difference]: With dead ends: 10293
[2022-02-09 00:24:17,241 INFO L226 Difference]: Without dead ends: 10293
[2022-02-09 00:24:17,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 207 SyntacticMatches, 27 SemanticMatches, 181 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 11638 ImplicationChecksByTransitivity, 34.7s TimeCoverageRelationStatistics Valid=5441, Invalid=27500, Unknown=5, NotChecked=360, Total=33306
[2022-02-09 00:24:17,243 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 2832 mSDsluCounter, 15910 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2832 SdHoareTripleChecker+Valid, 16548 SdHoareTripleChecker+Invalid, 6165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2656 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2022-02-09 00:24:17,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2832 Valid, 16548 Invalid, 6165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3416 Invalid, 0 Unknown, 2656 Unchecked, 3.5s Time]
[2022-02-09 00:24:17,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10293 states.
[2022-02-09 00:24:17,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10293 to 2672.
[2022-02-09 00:24:17,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2670 states have (on average 1.9790262172284645) internal successors, (5284), 2671 states have internal predecessors, (5284), 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)
[2022-02-09 00:24:17,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 5284 transitions.
[2022-02-09 00:24:17,289 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 5284 transitions. Word has length 106
[2022-02-09 00:24:17,290 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:24:17,290 INFO L470 AbstractCegarLoop]: Abstraction has 2672 states and 5284 transitions.
[2022-02-09 00:24:17,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-09 00:24:17,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 5284 transitions.
[2022-02-09 00:24:17,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117
[2022-02-09 00:24:17,292 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:24:17,292 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:24:17,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0
[2022-02-09 00:24:17,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:24:17,492 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:24:17,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:24:17,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1150805599, now seen corresponding path program 1 times
[2022-02-09 00:24:17,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:24:17,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257179454]
[2022-02-09 00:24:17,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:24:17,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:24:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:24:17,761 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:24:17,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:24:17,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257179454]
[2022-02-09 00:24:17,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257179454] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:24:17,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729402157]
[2022-02-09 00:24:17,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:24:17,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:24:17,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:24:17,763 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:24:17,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2022-02-09 00:24:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:24:17,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 34 conjunts are in the unsatisfiable core
[2022-02-09 00:24:17,876 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:24:18,686 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:24:19,030 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 12
[2022-02-09 00:24:19,110 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:24:19,110 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:24:19,645 INFO L353 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size
[2022-02-09 00:24:19,645 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 44 treesize of output 32
[2022-02-09 00:24:19,759 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:24:19,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729402157] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:24:19,760 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:24:19,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 16] total 36
[2022-02-09 00:24:19,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223481472]
[2022-02-09 00:24:19,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:24:19,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states
[2022-02-09 00:24:19,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:24:19,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants.
[2022-02-09 00:24:19,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1110, Unknown=0, NotChecked=0, Total=1260
[2022-02-09 00:24:19,761 INFO L87 Difference]: Start difference. First operand 2672 states and 5284 transitions. Second operand has 36 states, 36 states have (on average 6.805555555555555) internal successors, (245), 36 states have internal predecessors, (245), 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)
[2022-02-09 00:24:21,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:24:21,891 INFO L93 Difference]: Finished difference Result 4747 states and 9439 transitions.
[2022-02-09 00:24:21,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states.
[2022-02-09 00:24:21,891 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 6.805555555555555) internal successors, (245), 36 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116
[2022-02-09 00:24:21,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:24:21,895 INFO L225 Difference]: With dead ends: 4747
[2022-02-09 00:24:21,895 INFO L226 Difference]: Without dead ends: 3632
[2022-02-09 00:24:21,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 239 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 845 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=699, Invalid=2841, Unknown=0, NotChecked=0, Total=3540
[2022-02-09 00:24:21,896 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 2437 mSDsluCounter, 5821 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2437 SdHoareTripleChecker+Valid, 6255 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 284 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2022-02-09 00:24:21,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2437 Valid, 6255 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 869 Invalid, 0 Unknown, 284 Unchecked, 0.7s Time]
[2022-02-09 00:24:21,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states.
[2022-02-09 00:24:21,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 2550.
[2022-02-09 00:24:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.967817896389325) internal successors, (5014), 2549 states have internal predecessors, (5014), 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)
[2022-02-09 00:24:21,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 5014 transitions.
[2022-02-09 00:24:21,920 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 5014 transitions. Word has length 116
[2022-02-09 00:24:21,920 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:24:21,920 INFO L470 AbstractCegarLoop]: Abstraction has 2550 states and 5014 transitions.
[2022-02-09 00:24:21,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 6.805555555555555) internal successors, (245), 36 states have internal predecessors, (245), 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)
[2022-02-09 00:24:21,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 5014 transitions.
[2022-02-09 00:24:21,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2022-02-09 00:24:21,922 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:24:21,922 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:24:21,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0
[2022-02-09 00:24:22,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65
[2022-02-09 00:24:22,125 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:24:22,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:24:22,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2097498146, now seen corresponding path program 1 times
[2022-02-09 00:24:22,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:24:22,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376363049]
[2022-02-09 00:24:22,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:24:22,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:24:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:24:22,896 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:24:22,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:24:22,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376363049]
[2022-02-09 00:24:22,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376363049] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:24:22,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123441249]
[2022-02-09 00:24:22,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:24:22,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:24:22,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:24:22,898 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:24:22,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2022-02-09 00:24:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:24:23,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-09 00:24:23,014 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:24:23,216 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-09 00:24:23,216 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 11
[2022-02-09 00:24:23,420 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:24:23,575 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-02-09 00:24:24,339 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:24:24,943 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:24:25,084 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:24:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:24:25,157 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:24:34,985 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1678 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1678) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-09 00:24:35,022 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:24:35,023 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2022-02-09 00:24:35,034 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:24:35,034 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 37
[2022-02-09 00:24:35,039 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9
[2022-02-09 00:24:35,309 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-09 00:24:35,309 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 12
[2022-02-09 00:24:35,318 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-09 00:24:35,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123441249] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:24:35,318 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:24:35,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-09 00:24:35,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109452735]
[2022-02-09 00:24:35,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:24:35,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-09 00:24:35,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:24:35,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-09 00:24:35,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=3570, Unknown=4, NotChecked=122, Total=4032
[2022-02-09 00:24:35,320 INFO L87 Difference]: Start difference. First operand 2550 states and 5014 transitions. Second operand has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 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)
[2022-02-09 00:24:50,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:24:50,604 INFO L93 Difference]: Finished difference Result 5338 states and 10435 transitions.
[2022-02-09 00:24:50,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states.
[2022-02-09 00:24:50,605 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117
[2022-02-09 00:24:50,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:24:50,610 INFO L225 Difference]: With dead ends: 5338
[2022-02-09 00:24:50,610 INFO L226 Difference]: Without dead ends: 5242
[2022-02-09 00:24:50,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 206 SyntacticMatches, 22 SemanticMatches, 149 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7324 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=3672, Invalid=18678, Unknown=4, NotChecked=296, Total=22650
[2022-02-09 00:24:50,611 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 2091 mSDsluCounter, 9489 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 9915 SdHoareTripleChecker+Invalid, 4698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2584 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2022-02-09 00:24:50,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2091 Valid, 9915 Invalid, 4698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2038 Invalid, 0 Unknown, 2584 Unchecked, 1.7s Time]
[2022-02-09 00:24:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5242 states.
[2022-02-09 00:24:50,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5242 to 2428.
[2022-02-09 00:24:50,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 2426 states have (on average 1.9686727122835943) internal successors, (4776), 2427 states have internal predecessors, (4776), 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)
[2022-02-09 00:24:50,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 4776 transitions.
[2022-02-09 00:24:50,637 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 4776 transitions. Word has length 117
[2022-02-09 00:24:50,637 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:24:50,637 INFO L470 AbstractCegarLoop]: Abstraction has 2428 states and 4776 transitions.
[2022-02-09 00:24:50,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 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)
[2022-02-09 00:24:50,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 4776 transitions.
[2022-02-09 00:24:50,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2022-02-09 00:24:50,639 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:24:50,639 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:24:50,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0
[2022-02-09 00:24:50,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66
[2022-02-09 00:24:50,840 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:24:50,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:24:50,840 INFO L85 PathProgramCache]: Analyzing trace with hash -432855918, now seen corresponding path program 1 times
[2022-02-09 00:24:50,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:24:50,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797904519]
[2022-02-09 00:24:50,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:24:50,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:24:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:24:51,007 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 56 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:24:51,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:24:51,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797904519]
[2022-02-09 00:24:51,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797904519] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:24:51,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560809504]
[2022-02-09 00:24:51,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:24:51,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:24:51,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:24:51,009 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:24:51,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2022-02-09 00:24:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:24:51,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 34 conjunts are in the unsatisfiable core
[2022-02-09 00:24:51,151 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:24:51,604 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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
[2022-02-09 00:24:51,960 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:24:52,002 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 42 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2022-02-09 00:24:52,002 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:24:52,277 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 56 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:24:52,277 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560809504] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:24:52,278 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:24:52,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 20
[2022-02-09 00:24:52,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722700862]
[2022-02-09 00:24:52,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:24:52,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2022-02-09 00:24:52,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:24:52,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2022-02-09 00:24:52,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380
[2022-02-09 00:24:52,279 INFO L87 Difference]: Start difference. First operand 2428 states and 4776 transitions. Second operand has 20 states, 20 states have (on average 11.7) internal successors, (234), 20 states have internal predecessors, (234), 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)
[2022-02-09 00:24:52,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:24:52,775 INFO L93 Difference]: Finished difference Result 3961 states and 7840 transitions.
[2022-02-09 00:24:52,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-02-09 00:24:52,775 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 11.7) internal successors, (234), 20 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137
[2022-02-09 00:24:52,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:24:52,779 INFO L225 Difference]: With dead ends: 3961
[2022-02-09 00:24:52,779 INFO L226 Difference]: Without dead ends: 3961
[2022-02-09 00:24:52,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 268 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600
[2022-02-09 00:24:52,780 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 1116 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-02-09 00:24:52,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1116 Valid, 1698 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-02-09 00:24:52,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3961 states.
[2022-02-09 00:24:52,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3961 to 3026.
[2022-02-09 00:24:52,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3026 states, 3024 states have (on average 1.9966931216931216) internal successors, (6038), 3025 states have internal predecessors, (6038), 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)
[2022-02-09 00:24:52,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3026 states to 3026 states and 6038 transitions.
[2022-02-09 00:24:52,806 INFO L78 Accepts]: Start accepts. Automaton has 3026 states and 6038 transitions. Word has length 137
[2022-02-09 00:24:52,806 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:24:52,807 INFO L470 AbstractCegarLoop]: Abstraction has 3026 states and 6038 transitions.
[2022-02-09 00:24:52,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 11.7) internal successors, (234), 20 states have internal predecessors, (234), 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)
[2022-02-09 00:24:52,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3026 states and 6038 transitions.
[2022-02-09 00:24:52,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2022-02-09 00:24:52,809 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:24:52,809 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:24:52,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0
[2022-02-09 00:24:53,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:24:53,010 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:24:53,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:24:53,010 INFO L85 PathProgramCache]: Analyzing trace with hash 588933983, now seen corresponding path program 1 times
[2022-02-09 00:24:53,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:24:53,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218391127]
[2022-02-09 00:24:53,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:24:53,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:24:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:24:53,511 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:24:53,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:24:53,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218391127]
[2022-02-09 00:24:53,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218391127] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:24:53,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902704397]
[2022-02-09 00:24:53,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:24:53,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:24:53,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:24:53,513 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:24:53,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2022-02-09 00:24:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:24:53,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 42 conjunts are in the unsatisfiable core
[2022-02-09 00:24:53,642 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:24:54,797 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:24:55,204 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 18
[2022-02-09 00:24:55,457 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:24:55,490 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:24:55,491 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:25:10,676 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:25:10,676 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 134
[2022-02-09 00:25:11,527 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:25:11,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902704397] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:25:11,527 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:25:11,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 17] total 42
[2022-02-09 00:25:11,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299304286]
[2022-02-09 00:25:11,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:25:11,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states
[2022-02-09 00:25:11,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:25:11,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants.
[2022-02-09 00:25:11,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1492, Unknown=5, NotChecked=0, Total=1722
[2022-02-09 00:25:11,529 INFO L87 Difference]: Start difference. First operand 3026 states and 6038 transitions. Second operand has 42 states, 42 states have (on average 7.095238095238095) internal successors, (298), 42 states have internal predecessors, (298), 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)
[2022-02-09 00:25:16,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:25:16,249 INFO L93 Difference]: Finished difference Result 10286 states and 20615 transitions.
[2022-02-09 00:25:16,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states.
[2022-02-09 00:25:16,249 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 7.095238095238095) internal successors, (298), 42 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141
[2022-02-09 00:25:16,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:25:16,261 INFO L225 Difference]: With dead ends: 10286
[2022-02-09 00:25:16,261 INFO L226 Difference]: Without dead ends: 10048
[2022-02-09 00:25:16,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 320 SyntacticMatches, 29 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3445 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=1474, Invalid=6893, Unknown=5, NotChecked=0, Total=8372
[2022-02-09 00:25:16,262 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 2857 mSDsluCounter, 6359 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2857 SdHoareTripleChecker+Valid, 6649 SdHoareTripleChecker+Invalid, 2232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 897 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2022-02-09 00:25:16,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2857 Valid, 6649 Invalid, 2232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1219 Invalid, 0 Unknown, 897 Unchecked, 1.1s Time]
[2022-02-09 00:25:16,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10048 states.
[2022-02-09 00:25:16,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10048 to 5624.
[2022-02-09 00:25:16,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5624 states, 5622 states have (on average 2.0071149057274993) internal successors, (11284), 5623 states have internal predecessors, (11284), 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)
[2022-02-09 00:25:16,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5624 states to 5624 states and 11284 transitions.
[2022-02-09 00:25:16,333 INFO L78 Accepts]: Start accepts. Automaton has 5624 states and 11284 transitions. Word has length 141
[2022-02-09 00:25:16,333 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:25:16,333 INFO L470 AbstractCegarLoop]: Abstraction has 5624 states and 11284 transitions.
[2022-02-09 00:25:16,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.095238095238095) internal successors, (298), 42 states have internal predecessors, (298), 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)
[2022-02-09 00:25:16,333 INFO L276 IsEmpty]: Start isEmpty. Operand 5624 states and 11284 transitions.
[2022-02-09 00:25:16,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2022-02-09 00:25:16,337 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:25:16,337 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:25:16,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0
[2022-02-09 00:25:16,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:25:16,539 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:25:16,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:25:16,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1234134163, now seen corresponding path program 2 times
[2022-02-09 00:25:16,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:25:16,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406726425]
[2022-02-09 00:25:16,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:25:16,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:25:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:25:17,040 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:25:17,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:25:17,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406726425]
[2022-02-09 00:25:17,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406726425] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:25:17,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223591282]
[2022-02-09 00:25:17,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-09 00:25:17,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:25:17,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:25:17,042 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:25:17,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2022-02-09 00:25:17,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 00:25:17,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:25:17,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 42 conjunts are in the unsatisfiable core
[2022-02-09 00:25:17,180 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:25:18,336 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:25:18,937 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 18
[2022-02-09 00:25:19,022 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:25:19,053 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:25:19,053 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:25:22,611 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:25:22,611 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 134
[2022-02-09 00:25:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:25:23,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223591282] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:25:23,311 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:25:23,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18, 17] total 45
[2022-02-09 00:25:23,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604602282]
[2022-02-09 00:25:23,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:25:23,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2022-02-09 00:25:23,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:25:23,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2022-02-09 00:25:23,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1749, Unknown=1, NotChecked=0, Total=1980
[2022-02-09 00:25:23,313 INFO L87 Difference]: Start difference. First operand 5624 states and 11284 transitions. Second operand has 45 states, 45 states have (on average 6.777777777777778) internal successors, (305), 45 states have internal predecessors, (305), 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)
[2022-02-09 00:25:26,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:25:26,950 INFO L93 Difference]: Finished difference Result 13699 states and 27644 transitions.
[2022-02-09 00:25:26,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states.
[2022-02-09 00:25:26,950 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 6.777777777777778) internal successors, (305), 45 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141
[2022-02-09 00:25:26,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:25:26,967 INFO L225 Difference]: With dead ends: 13699
[2022-02-09 00:25:26,967 INFO L226 Difference]: Without dead ends: 13664
[2022-02-09 00:25:26,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 286 SyntacticMatches, 31 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2082 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=953, Invalid=4448, Unknown=1, NotChecked=0, Total=5402
[2022-02-09 00:25:26,968 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 2109 mSDsluCounter, 4529 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 798 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2022-02-09 00:25:26,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2109 Valid, 4806 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 812 Invalid, 0 Unknown, 798 Unchecked, 0.8s Time]
[2022-02-09 00:25:26,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13664 states.
[2022-02-09 00:25:27,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13664 to 5801.
[2022-02-09 00:25:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5801 states, 5799 states have (on average 2.0013795481979653) internal successors, (11606), 5800 states have internal predecessors, (11606), 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)
[2022-02-09 00:25:27,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5801 states to 5801 states and 11606 transitions.
[2022-02-09 00:25:27,063 INFO L78 Accepts]: Start accepts. Automaton has 5801 states and 11606 transitions. Word has length 141
[2022-02-09 00:25:27,063 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:25:27,063 INFO L470 AbstractCegarLoop]: Abstraction has 5801 states and 11606 transitions.
[2022-02-09 00:25:27,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 6.777777777777778) internal successors, (305), 45 states have internal predecessors, (305), 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)
[2022-02-09 00:25:27,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5801 states and 11606 transitions.
[2022-02-09 00:25:27,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2022-02-09 00:25:27,067 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:25:27,067 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:25:27,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0
[2022-02-09 00:25:27,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69
[2022-02-09 00:25:27,268 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:25:27,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:25:27,268 INFO L85 PathProgramCache]: Analyzing trace with hash -950945829, now seen corresponding path program 3 times
[2022-02-09 00:25:27,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:25:27,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703139164]
[2022-02-09 00:25:27,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:25:27,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:25:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:25:27,834 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:25:27,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:25:27,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703139164]
[2022-02-09 00:25:27,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703139164] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:25:27,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141491047]
[2022-02-09 00:25:27,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-09 00:25:27,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:25:27,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:25:27,836 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:25:27,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2022-02-09 00:25:27,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2022-02-09 00:25:27,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:25:27,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 42 conjunts are in the unsatisfiable core
[2022-02-09 00:25:27,968 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:25:29,226 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:25:29,861 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 18
[2022-02-09 00:25:29,956 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:25:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:25:29,990 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:25:31,484 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:25:31,485 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 134
[2022-02-09 00:25:32,286 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:25:32,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141491047] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:25:32,287 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:25:32,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18, 17] total 45
[2022-02-09 00:25:32,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802292791]
[2022-02-09 00:25:32,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:25:32,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2022-02-09 00:25:32,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:25:32,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2022-02-09 00:25:32,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1769, Unknown=0, NotChecked=0, Total=1980
[2022-02-09 00:25:32,288 INFO L87 Difference]: Start difference. First operand 5801 states and 11606 transitions. Second operand has 45 states, 45 states have (on average 6.777777777777778) internal successors, (305), 45 states have internal predecessors, (305), 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)
[2022-02-09 00:25:38,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:25:38,410 INFO L93 Difference]: Finished difference Result 21523 states and 43279 transitions.
[2022-02-09 00:25:38,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states.
[2022-02-09 00:25:38,410 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 6.777777777777778) internal successors, (305), 45 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141
[2022-02-09 00:25:38,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:25:38,441 INFO L225 Difference]: With dead ends: 21523
[2022-02-09 00:25:38,441 INFO L226 Difference]: Without dead ends: 21453
[2022-02-09 00:25:38,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 311 SyntacticMatches, 5 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3055 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1679, Invalid=8623, Unknown=0, NotChecked=0, Total=10302
[2022-02-09 00:25:38,442 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 2592 mSDsluCounter, 8060 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2592 SdHoareTripleChecker+Valid, 8337 SdHoareTripleChecker+Invalid, 3647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1816 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2022-02-09 00:25:38,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2592 Valid, 8337 Invalid, 3647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1677 Invalid, 0 Unknown, 1816 Unchecked, 1.6s Time]
[2022-02-09 00:25:38,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21453 states.
[2022-02-09 00:25:38,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21453 to 11671.
[2022-02-09 00:25:38,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11671 states, 11669 states have (on average 2.0048847373382466) internal successors, (23395), 11670 states have internal predecessors, (23395), 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)
[2022-02-09 00:25:38,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11671 states to 11671 states and 23395 transitions.
[2022-02-09 00:25:38,648 INFO L78 Accepts]: Start accepts. Automaton has 11671 states and 23395 transitions. Word has length 141
[2022-02-09 00:25:38,648 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:25:38,648 INFO L470 AbstractCegarLoop]: Abstraction has 11671 states and 23395 transitions.
[2022-02-09 00:25:38,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 6.777777777777778) internal successors, (305), 45 states have internal predecessors, (305), 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)
[2022-02-09 00:25:38,649 INFO L276 IsEmpty]: Start isEmpty. Operand 11671 states and 23395 transitions.
[2022-02-09 00:25:38,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2022-02-09 00:25:38,655 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:25:38,655 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:25:38,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0
[2022-02-09 00:25:38,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:25:38,856 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:25:38,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:25:38,856 INFO L85 PathProgramCache]: Analyzing trace with hash 187654875, now seen corresponding path program 4 times
[2022-02-09 00:25:38,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:25:38,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886731404]
[2022-02-09 00:25:38,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:25:38,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:25:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:25:39,391 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:25:39,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:25:39,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886731404]
[2022-02-09 00:25:39,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886731404] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:25:39,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60818636]
[2022-02-09 00:25:39,392 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-09 00:25:39,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:25:39,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:25:39,393 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:25:39,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2022-02-09 00:25:39,515 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-09 00:25:39,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:25:39,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 42 conjunts are in the unsatisfiable core
[2022-02-09 00:25:39,518 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:25:40,781 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:25:41,313 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 18
[2022-02-09 00:25:41,463 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:25:41,495 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:25:41,496 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:25:43,000 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:25:43,001 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 205 treesize of output 218
[2022-02-09 00:25:44,386 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:25:44,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60818636] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:25:44,387 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:25:44,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18, 17] total 45
[2022-02-09 00:25:44,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891093841]
[2022-02-09 00:25:44,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:25:44,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2022-02-09 00:25:44,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:25:44,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2022-02-09 00:25:44,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1763, Unknown=0, NotChecked=0, Total=1980
[2022-02-09 00:25:44,388 INFO L87 Difference]: Start difference. First operand 11671 states and 23395 transitions. Second operand has 45 states, 45 states have (on average 6.777777777777778) internal successors, (305), 45 states have internal predecessors, (305), 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)
[2022-02-09 00:25:48,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:25:48,647 INFO L93 Difference]: Finished difference Result 23949 states and 47782 transitions.
[2022-02-09 00:25:48,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states.
[2022-02-09 00:25:48,648 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 6.777777777777778) internal successors, (305), 45 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141
[2022-02-09 00:25:48,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:25:48,680 INFO L225 Difference]: With dead ends: 23949
[2022-02-09 00:25:48,680 INFO L226 Difference]: Without dead ends: 23837
[2022-02-09 00:25:48,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 293 SyntacticMatches, 14 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2075 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1135, Invalid=5185, Unknown=0, NotChecked=0, Total=6320
[2022-02-09 00:25:48,681 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 2091 mSDsluCounter, 4978 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 719 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2022-02-09 00:25:48,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2091 Valid, 5233 Invalid, 2136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1286 Invalid, 0 Unknown, 719 Unchecked, 1.2s Time]
[2022-02-09 00:25:48,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23837 states.
[2022-02-09 00:25:48,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23837 to 20879.
[2022-02-09 00:25:48,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20879 states, 20877 states have (on average 1.9945394453226037) internal successors, (41640), 20878 states have internal predecessors, (41640), 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)
[2022-02-09 00:25:48,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20879 states to 20879 states and 41640 transitions.
[2022-02-09 00:25:48,957 INFO L78 Accepts]: Start accepts. Automaton has 20879 states and 41640 transitions. Word has length 141
[2022-02-09 00:25:48,957 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:25:48,958 INFO L470 AbstractCegarLoop]: Abstraction has 20879 states and 41640 transitions.
[2022-02-09 00:25:48,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 6.777777777777778) internal successors, (305), 45 states have internal predecessors, (305), 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)
[2022-02-09 00:25:48,958 INFO L276 IsEmpty]: Start isEmpty. Operand 20879 states and 41640 transitions.
[2022-02-09 00:25:48,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2022-02-09 00:25:48,966 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:25:48,966 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:25:48,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0
[2022-02-09 00:25:49,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71
[2022-02-09 00:25:49,167 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:25:49,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:25:49,168 INFO L85 PathProgramCache]: Analyzing trace with hash -123800637, now seen corresponding path program 5 times
[2022-02-09 00:25:49,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:25:49,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100506840]
[2022-02-09 00:25:49,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:25:49,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:25:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:25:49,636 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:25:49,637 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:25:49,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100506840]
[2022-02-09 00:25:49,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100506840] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:25:49,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596249559]
[2022-02-09 00:25:49,637 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-09 00:25:49,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:25:49,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:25:49,639 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:25:49,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2022-02-09 00:25:49,771 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-09 00:25:49,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:25:49,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 42 conjunts are in the unsatisfiable core
[2022-02-09 00:25:49,774 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:25:51,044 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:25:51,516 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 18
[2022-02-09 00:25:51,745 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:25:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:25:51,779 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:26:03,759 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:26:03,759 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 134
[2022-02-09 00:26:04,612 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:26:04,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596249559] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:26:04,612 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:26:04,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 17] total 42
[2022-02-09 00:26:04,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181716036]
[2022-02-09 00:26:04,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:26:04,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states
[2022-02-09 00:26:04,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:26:04,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants.
[2022-02-09 00:26:04,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1519, Unknown=5, NotChecked=0, Total=1722
[2022-02-09 00:26:04,614 INFO L87 Difference]: Start difference. First operand 20879 states and 41640 transitions. Second operand has 42 states, 42 states have (on average 7.095238095238095) internal successors, (298), 42 states have internal predecessors, (298), 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)
[2022-02-09 00:26:09,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:26:09,784 INFO L93 Difference]: Finished difference Result 45475 states and 90648 transitions.
[2022-02-09 00:26:09,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states.
[2022-02-09 00:26:09,785 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 7.095238095238095) internal successors, (298), 42 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141
[2022-02-09 00:26:09,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:26:09,851 INFO L225 Difference]: With dead ends: 45475
[2022-02-09 00:26:09,851 INFO L226 Difference]: Without dead ends: 45363
[2022-02-09 00:26:09,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 295 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1585 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=1097, Invalid=4904, Unknown=5, NotChecked=0, Total=6006
[2022-02-09 00:26:09,856 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 2076 mSDsluCounter, 6226 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 6539 SdHoareTripleChecker+Invalid, 2528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 873 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2022-02-09 00:26:09,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2076 Valid, 6539 Invalid, 2528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1496 Invalid, 0 Unknown, 873 Unchecked, 1.9s Time]
[2022-02-09 00:26:09,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45363 states.
[2022-02-09 00:26:10,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45363 to 17426.
[2022-02-09 00:26:10,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17426 states, 17424 states have (on average 2.0095270890725434) internal successors, (35014), 17425 states have internal predecessors, (35014), 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)
[2022-02-09 00:26:10,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17426 states to 17426 states and 35014 transitions.
[2022-02-09 00:26:10,238 INFO L78 Accepts]: Start accepts. Automaton has 17426 states and 35014 transitions. Word has length 141
[2022-02-09 00:26:10,238 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:26:10,238 INFO L470 AbstractCegarLoop]: Abstraction has 17426 states and 35014 transitions.
[2022-02-09 00:26:10,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.095238095238095) internal successors, (298), 42 states have internal predecessors, (298), 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)
[2022-02-09 00:26:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 17426 states and 35014 transitions.
[2022-02-09 00:26:10,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2022-02-09 00:26:10,249 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:26:10,249 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:26:10,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0
[2022-02-09 00:26:10,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:26:10,450 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:26:10,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:26:10,451 INFO L85 PathProgramCache]: Analyzing trace with hash 368576743, now seen corresponding path program 6 times
[2022-02-09 00:26:10,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:26:10,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073830842]
[2022-02-09 00:26:10,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:26:10,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:26:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:26:11,130 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:26:11,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:26:11,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073830842]
[2022-02-09 00:26:11,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073830842] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:26:11,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603488427]
[2022-02-09 00:26:11,130 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-09 00:26:11,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:26:11,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:26:11,131 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:26:11,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process
[2022-02-09 00:26:11,265 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2022-02-09 00:26:11,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-09 00:26:11,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 42 conjunts are in the unsatisfiable core
[2022-02-09 00:26:11,268 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:26:12,804 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:26:13,330 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 18
[2022-02-09 00:26:13,644 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-02-09 00:26:13,689 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:26:13,689 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-09 00:26:17,694 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-09 00:26:17,694 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 134
[2022-02-09 00:26:18,394 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:26:18,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603488427] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-09 00:26:18,395 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-09 00:26:18,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 17] total 42
[2022-02-09 00:26:18,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840367135]
[2022-02-09 00:26:18,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-09 00:26:18,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states
[2022-02-09 00:26:18,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-09 00:26:18,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants.
[2022-02-09 00:26:18,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1521, Unknown=0, NotChecked=0, Total=1722
[2022-02-09 00:26:18,396 INFO L87 Difference]: Start difference. First operand 17426 states and 35014 transitions. Second operand has 42 states, 42 states have (on average 7.095238095238095) internal successors, (298), 42 states have internal predecessors, (298), 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)
[2022-02-09 00:26:23,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-09 00:26:23,433 INFO L93 Difference]: Finished difference Result 27878 states and 55547 transitions.
[2022-02-09 00:26:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-02-09 00:26:23,433 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 7.095238095238095) internal successors, (298), 42 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141
[2022-02-09 00:26:23,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-09 00:26:23,472 INFO L225 Difference]: With dead ends: 27878
[2022-02-09 00:26:23,472 INFO L226 Difference]: Without dead ends: 27766
[2022-02-09 00:26:23,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 293 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1609 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=1032, Invalid=4820, Unknown=0, NotChecked=0, Total=5852
[2022-02-09 00:26:23,473 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 1743 mSDsluCounter, 5646 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 5957 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 773 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2022-02-09 00:26:23,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1743 Valid, 5957 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1449 Invalid, 0 Unknown, 773 Unchecked, 2.0s Time]
[2022-02-09 00:26:23,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27766 states.
[2022-02-09 00:26:23,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27766 to 20335.
[2022-02-09 00:26:23,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20335 states, 20333 states have (on average 2.0011803472188068) internal successors, (40690), 20334 states have internal predecessors, (40690), 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)
[2022-02-09 00:26:23,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20335 states to 20335 states and 40690 transitions.
[2022-02-09 00:26:23,768 INFO L78 Accepts]: Start accepts. Automaton has 20335 states and 40690 transitions. Word has length 141
[2022-02-09 00:26:23,768 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-09 00:26:23,768 INFO L470 AbstractCegarLoop]: Abstraction has 20335 states and 40690 transitions.
[2022-02-09 00:26:23,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.095238095238095) internal successors, (298), 42 states have internal predecessors, (298), 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)
[2022-02-09 00:26:23,768 INFO L276 IsEmpty]: Start isEmpty. Operand 20335 states and 40690 transitions.
[2022-02-09 00:26:23,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2022-02-09 00:26:23,781 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-09 00:26:23,781 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:26:23,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0
[2022-02-09 00:26:23,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:26:23,982 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-09 00:26:23,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-09 00:26:23,982 INFO L85 PathProgramCache]: Analyzing trace with hash 159169001, now seen corresponding path program 7 times
[2022-02-09 00:26:23,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-09 00:26:23,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080618771]
[2022-02-09 00:26:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-09 00:26:23,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-09 00:26:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:26:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-02-09 00:26:24,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-09 00:26:24,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080618771]
[2022-02-09 00:26:24,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080618771] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-09 00:26:24,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645265817]
[2022-02-09 00:26:24,660 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-02-09 00:26:24,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:26:24,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-09 00:26:24,661 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-09 00:26:24,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process
[2022-02-09 00:26:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-09 00:26:24,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 42 conjunts are in the unsatisfiable core
[2022-02-09 00:26:24,794 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-09 00:26:26,548 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16
[2022-02-09 00:26:27,288 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 18
Received shutdown request...
[2022-02-09 00:26:27,404 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining)
[2022-02-09 00:26:27,416 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2022-02-09 00:26:27,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0
[2022-02-09 00:26:27,442 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2022-02-09 00:26:27,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-09 00:26:27,605 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 142 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 34 known predicates.
[2022-02-09 00:26:27,606 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining)
[2022-02-09 00:26:27,606 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining)
[2022-02-09 00:26:27,607 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining)
[2022-02-09 00:26:27,607 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining)
[2022-02-09 00:26:27,609 INFO L732 BasicCegarLoop]: Path program histogram: [19, 18, 17, 7, 7, 1, 1, 1, 1, 1, 1, 1]
[2022-02-09 00:26:27,611 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-09 00:26:27,611 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-09 00:26:27,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 12:26:27 BasicIcfg
[2022-02-09 00:26:27,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-09 00:26:27,613 INFO L158 Benchmark]: Toolchain (without parser) took 806659.08ms. Allocated memory was 173.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 123.5MB in the beginning and 308.7MB in the end (delta: -185.3MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB.
[2022-02-09 00:26:27,613 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory was 141.0MB in the beginning and 140.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-02-09 00:26:27,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.09ms. Allocated memory is still 173.0MB. Free memory was 123.3MB in the beginning and 140.0MB in the end (delta: -16.6MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB.
[2022-02-09 00:26:27,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.50ms. Allocated memory is still 173.0MB. Free memory was 140.0MB in the beginning and 137.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
[2022-02-09 00:26:27,613 INFO L158 Benchmark]: Boogie Preprocessor took 22.17ms. Allocated memory is still 173.0MB. Free memory was 137.3MB in the beginning and 135.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-09 00:26:27,613 INFO L158 Benchmark]: RCFGBuilder took 409.15ms. Allocated memory is still 173.0MB. Free memory was 135.8MB in the beginning and 121.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
[2022-02-09 00:26:27,613 INFO L158 Benchmark]: TraceAbstraction took 805771.89ms. Allocated memory was 173.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 120.6MB in the beginning and 308.7MB in the end (delta: -188.2MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB.
[2022-02-09 00:26:27,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory was 141.0MB in the beginning and 140.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 408.09ms. Allocated memory is still 173.0MB. Free memory was 123.3MB in the beginning and 140.0MB in the end (delta: -16.6MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 39.50ms. Allocated memory is still 173.0MB. Free memory was 140.0MB in the beginning and 137.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 22.17ms. Allocated memory is still 173.0MB. Free memory was 137.3MB in the beginning and 135.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 409.15ms. Allocated memory is still 173.0MB. Free memory was 135.8MB in the beginning and 121.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
* TraceAbstraction took 805771.89ms. Allocated memory was 173.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 120.6MB in the beginning and 308.7MB in the end (delta: -188.2MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB.
* 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
- TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction)
Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 142 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 34 known predicates.
- TimeoutResultAtElement [Line: 748]: Timeout (TraceAbstraction)
Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 142 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 34 known predicates.
- TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction)
Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 142 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 34 known predicates.
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 3 procedures, 190 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 805.6s, OverallIterations: 75, TraceHistogramMax: 3, PathProgramHistogramMax: 19, EmptinessCheckTime: 0.3s, AutomataDifference: 445.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139658 SdHoareTripleChecker+Valid, 65.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139658 mSDsluCounter, 378607 SdHoareTripleChecker+Invalid, 57.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 41178 IncrementalHoareTripleChecker+Unchecked, 350241 mSDsCounter, 4631 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93123 IncrementalHoareTripleChecker+Invalid, 138932 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4631 mSolverCounterUnsat, 28574 mSDtfsCounter, 93123 mSolverCounterSat, 1.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11872 GetRequests, 6267 SyntacticMatches, 379 SemanticMatches, 5226 ConstructedPredicates, 19 IntricatePredicates, 7 DeprecatedPredicates, 173693 ImplicationChecksByTransitivity, 629.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20879occurred in iteration=72, InterpolantAutomatonStates: 3545, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.6s AutomataMinimizationTime, 74 MinimizatonAttempts, 548155 StatesRemovedByMinimization, 73 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 334.4s InterpolantComputationTime, 9971 NumberOfCodeBlocks, 9960 NumberOfCodeBlocksAsserted, 121 NumberOfCheckSat, 12918 ConstructedInterpolants, 1101 QuantifiedInterpolants, 134589 SizeOfPredicates, 648 NumberOfNonLiveVariables, 7454 ConjunctsInSsa, 1394 ConjunctsInUnsatCore, 129 InterpolantComputations, 47 PerfectInterpolantSequences, 672/1635 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
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown