/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/pthread-wmm/safe011_tso.i


--------------------------------------------------------------------------------


This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd
[2022-02-08 23:57:48,440 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2022-02-08 23:57:48,496 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
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[2022-02-08 23:57:48,498 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2022-02-08 23:57:48,516 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2022-02-08 23:57:48,517 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-02-08 23:57:48,518 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
[2022-02-08 23:57:48,547 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-02-08 23:57:48,547 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-08 23:57:48,547 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-08 23:57:48,547 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-08 23:57:48,548 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-08 23:57:48,548 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-08 23:57:48,549 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-08 23:57:48,549 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-02-08 23:57:48,549 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-02-08 23:57:48,549 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-08 23:57:48,549 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-02-08 23:57:48,550 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-02-08 23:57:48,550 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-02-08 23:57:48,550 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-02-08 23:57:48,550 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-02-08 23:57:48,550 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-08 23:57:48,550 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-02-08 23:57:48,550 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-02-08 23:57:48,550 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-02-08 23:57:48,550 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-02-08 23:57:48,550 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-02-08 23:57:48,550 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-08 23:57:48,550 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-02-08 23:57:48,551 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2022-02-08 23:57:48,551 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-02-08 23:57:48,551 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-08 23:57:48,552 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-08 23:57:48,552 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-02-08 23:57:48,552 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-08 23:57:48,552 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-02-08 23:57:48,552 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-08 23:57:48,552 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2022-02-08 23:57:48,552 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-08 23:57:48,552 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-08 23:57:48,746 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-08 23:57:48,763 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-08 23:57:48,765 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-08 23:57:48,766 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-02-08 23:57:48,766 INFO  L275        PluginConnector]: CDTParser initialized
[2022-02-08 23:57:48,767 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.i
[2022-02-08 23:57:48,816 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2d22f74a/3abe1708c9de479d969411e9fe73b215/FLAG8ba96d96d
[2022-02-08 23:57:49,270 INFO  L306              CDTParser]: Found 1 translation units.
[2022-02-08 23:57:49,270 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.i
[2022-02-08 23:57:49,291 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2d22f74a/3abe1708c9de479d969411e9fe73b215/FLAG8ba96d96d
[2022-02-08 23:57:49,793 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2d22f74a/3abe1708c9de479d969411e9fe73b215
[2022-02-08 23:57:49,795 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-08 23:57:49,796 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-08 23:57:49,798 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-08 23:57:49,798 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-08 23:57:49,801 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-08 23:57:49,801 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 11:57:49" (1/1) ...
[2022-02-08 23:57:49,802 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4600b216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:49, skipping insertion in model container
[2022-02-08 23:57:49,802 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 11:57:49" (1/1) ...
[2022-02-08 23:57:49,807 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-02-08 23:57:49,841 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-02-08 23:57:49,973 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.i[945,958]
[2022-02-08 23:57:50,092 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-02-08 23:57:50,099 INFO  L203         MainTranslator]: Completed pre-run
[2022-02-08 23:57:50,107 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.i[945,958]
[2022-02-08 23:57:50,131 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-02-08 23:57:50,153 INFO  L208         MainTranslator]: Completed translation
[2022-02-08 23:57:50,154 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:50 WrapperNode
[2022-02-08 23:57:50,154 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-08 23:57:50,155 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-08 23:57:50,155 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-08 23:57:50,155 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-08 23:57:50,159 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:50" (1/1) ...
[2022-02-08 23:57:50,168 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:50" (1/1) ...
[2022-02-08 23:57:50,181 INFO  L137                Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70
[2022-02-08 23:57:50,181 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-08 23:57:50,182 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-08 23:57:50,182 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-08 23:57:50,182 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-02-08 23:57:50,186 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:50" (1/1) ...
[2022-02-08 23:57:50,187 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:50" (1/1) ...
[2022-02-08 23:57:50,189 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:50" (1/1) ...
[2022-02-08 23:57:50,189 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:50" (1/1) ...
[2022-02-08 23:57:50,193 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:50" (1/1) ...
[2022-02-08 23:57:50,194 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:50" (1/1) ...
[2022-02-08 23:57:50,195 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:50" (1/1) ...
[2022-02-08 23:57:50,197 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-08 23:57:50,200 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-08 23:57:50,200 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-02-08 23:57:50,200 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-02-08 23:57:50,201 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:50" (1/1) ...
[2022-02-08 23:57:50,206 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-08 23:57:50,215 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-08 23:57:50,226 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)
[2022-02-08 23:57:50,231 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
[2022-02-08 23:57:50,264 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-02-08 23:57:50,264 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-02-08 23:57:50,264 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-08 23:57:50,264 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-08 23:57:50,265 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-08 23:57:50,265 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2022-02-08 23:57:50,265 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2022-02-08 23:57:50,267 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2022-02-08 23:57:50,267 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2022-02-08 23:57:50,268 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2022-02-08 23:57:50,268 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2022-02-08 23:57:50,268 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-08 23:57:50,268 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-02-08 23:57:50,268 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-08 23:57:50,268 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-08 23:57:50,269 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-08 23:57:50,342 INFO  L234             CfgBuilder]: Building ICFG
[2022-02-08 23:57:50,343 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-08 23:57:50,455 INFO  L275             CfgBuilder]: Performing block encoding
[2022-02-08 23:57:50,459 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-08 23:57:50,460 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-08 23:57:50,461 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.02 11:57:50 BoogieIcfgContainer
[2022-02-08 23:57:50,461 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-08 23:57:50,463 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-08 23:57:50,463 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-02-08 23:57:50,465 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-02-08 23:57:50,465 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 11:57:49" (1/3) ...
[2022-02-08 23:57:50,466 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a3fa4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 11:57:50, skipping insertion in model container
[2022-02-08 23:57:50,466 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:57:50" (2/3) ...
[2022-02-08 23:57:50,466 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a3fa4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 11:57:50, skipping insertion in model container
[2022-02-08 23:57:50,466 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.02 11:57:50" (3/3) ...
[2022-02-08 23:57:50,467 INFO  L111   eAbstractionObserver]: Analyzing ICFG safe011_tso.i
[2022-02-08 23:57:50,470 WARN  L150   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-08 23:57:50,471 INFO  L205   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-08 23:57:50,471 INFO  L164   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-08 23:57:50,471 INFO  L534   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-08 23:57:50,507 WARN  L322   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,507 WARN  L322   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,507 WARN  L322   ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,507 WARN  L322   ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,508 WARN  L322   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,508 WARN  L322   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,508 WARN  L322   ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,508 WARN  L322   ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,509 WARN  L322   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,509 WARN  L322   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,509 WARN  L322   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,509 WARN  L322   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,510 WARN  L322   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,510 WARN  L322   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,510 WARN  L322   ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,510 WARN  L322   ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,510 WARN  L322   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,510 WARN  L322   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,510 WARN  L322   ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,510 WARN  L322   ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,511 WARN  L322   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,511 WARN  L322   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,511 WARN  L322   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,511 WARN  L322   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,512 WARN  L322   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,512 WARN  L322   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,512 WARN  L322   ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,512 WARN  L322   ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,512 WARN  L322   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,512 WARN  L322   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,513 WARN  L322   ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,513 WARN  L322   ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,514 WARN  L322   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,514 WARN  L322   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,514 WARN  L322   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,514 WARN  L322   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,518 WARN  L322   ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,518 WARN  L322   ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,519 WARN  L322   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,519 WARN  L322   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,521 WARN  L322   ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,521 WARN  L322   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,521 WARN  L322   ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,521 WARN  L322   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,522 WARN  L322   ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,522 WARN  L322   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,522 WARN  L322   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,522 WARN  L322   ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-08 23:57:50,523 INFO  L148    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-02-08 23:57:50,552 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-08 23:57:50,557 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
[2022-02-08 23:57:50,557 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2022-02-08 23:57:50,567 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 91 transitions, 197 flow
[2022-02-08 23:57:50,838 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:50,860 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:50,891 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2022-02-08 23:57:50,891 INFO  L506         BasicCegarLoop]: Found error trace
[2022-02-08 23:57:50,892 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]
[2022-02-08 23:57:50,892 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:50,896 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:50,897 INFO  L85        PathProgramCache]: Analyzing trace with hash -1250208404, now seen corresponding path program 1 times
[2022-02-08 23:57:50,903 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:50,904 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637966716]
[2022-02-08 23:57:50,904 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:50,905 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:51,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:51,206 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:51,206 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:51,206 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637966716]
[2022-02-08 23:57:51,207 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637966716] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:51,207 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:51,207 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-08 23:57:51,208 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249296772]
[2022-02-08 23:57:51,209 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:51,211 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-08 23:57:51,212 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:51,228 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-08 23:57:51,229 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-02-08 23:57:51,249 INFO  L87              Difference]: Start difference. First operand  has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 0 states have call successors, (0), 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 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:51,605 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:51,605 INFO  L93              Difference]: Finished difference Result 11667 states and 39717 transitions.
[2022-02-08 23:57:51,607 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2022-02-08 23:57:51,608 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54
[2022-02-08 23:57:51,609 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:51,671 INFO  L225             Difference]: With dead ends: 11667
[2022-02-08 23:57:51,671 INFO  L226             Difference]: Without dead ends: 7353
[2022-02-08 23:57:51,673 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2022-02-08 23:57:51,677 INFO  L933         BasicCegarLoop]: 127 mSDtfsCounter, 187 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:51,678 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 627 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-08 23:57:51,708 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7353 states.
[2022-02-08 23:57:51,907 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7353 to 6121.
[2022-02-08 23:57:51,940 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6121 states, 6120 states have (on average 3.3326797385620917) internal successors, (20396), 6120 states have internal predecessors, (20396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:52,045 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6121 states to 6121 states and 20396 transitions.
[2022-02-08 23:57:52,046 INFO  L78                 Accepts]: Start accepts. Automaton has 6121 states and 20396 transitions. Word has length 54
[2022-02-08 23:57:52,061 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:52,061 INFO  L470      AbstractCegarLoop]: Abstraction has 6121 states and 20396 transitions.
[2022-02-08 23:57:52,062 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:52,063 INFO  L276                IsEmpty]: Start isEmpty. Operand 6121 states and 20396 transitions.
[2022-02-08 23:57:52,081 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2022-02-08 23:57:52,081 INFO  L506         BasicCegarLoop]: Found error trace
[2022-02-08 23:57:52,081 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]
[2022-02-08 23:57:52,081 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-08 23:57:52,082 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:52,082 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:52,082 INFO  L85        PathProgramCache]: Analyzing trace with hash -1385860435, now seen corresponding path program 1 times
[2022-02-08 23:57:52,082 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:52,082 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25028511]
[2022-02-08 23:57:52,083 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:52,083 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:52,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:52,172 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:52,172 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:52,173 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25028511]
[2022-02-08 23:57:52,173 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25028511] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:52,173 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:52,173 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-08 23:57:52,173 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315720486]
[2022-02-08 23:57:52,173 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:52,174 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-08 23:57:52,174 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:52,174 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-08 23:57:52,174 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-02-08 23:57:52,175 INFO  L87              Difference]: Start difference. First operand 6121 states and 20396 transitions. Second operand  has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:52,463 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:52,464 INFO  L93              Difference]: Finished difference Result 9596 states and 31681 transitions.
[2022-02-08 23:57:52,464 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2022-02-08 23:57:52,464 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 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 56
[2022-02-08 23:57:52,465 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:52,519 INFO  L225             Difference]: With dead ends: 9596
[2022-02-08 23:57:52,520 INFO  L226             Difference]: Without dead ends: 7571
[2022-02-08 23:57:52,523 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2022-02-08 23:57:52,524 INFO  L933         BasicCegarLoop]: 132 mSDtfsCounter, 188 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:52,525 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 635 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:52,540 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7571 states.
[2022-02-08 23:57:52,711 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7571 to 5831.
[2022-02-08 23:57:52,726 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5831 states, 5830 states have (on average 3.314236706689537) internal successors, (19322), 5830 states have internal predecessors, (19322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:52,749 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5831 states to 5831 states and 19322 transitions.
[2022-02-08 23:57:52,749 INFO  L78                 Accepts]: Start accepts. Automaton has 5831 states and 19322 transitions. Word has length 56
[2022-02-08 23:57:52,749 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:52,750 INFO  L470      AbstractCegarLoop]: Abstraction has 5831 states and 19322 transitions.
[2022-02-08 23:57:52,750 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:52,750 INFO  L276                IsEmpty]: Start isEmpty. Operand 5831 states and 19322 transitions.
[2022-02-08 23:57:52,763 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2022-02-08 23:57:52,763 INFO  L506         BasicCegarLoop]: Found error trace
[2022-02-08 23:57:52,763 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]
[2022-02-08 23:57:52,764 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-08 23:57:52,764 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:52,764 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:52,764 INFO  L85        PathProgramCache]: Analyzing trace with hash -1201774260, now seen corresponding path program 1 times
[2022-02-08 23:57:52,764 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:52,765 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890451770]
[2022-02-08 23:57:52,765 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:52,765 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:52,810 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:52,920 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:52,920 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:52,920 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890451770]
[2022-02-08 23:57:52,920 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890451770] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:52,921 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:52,921 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-08 23:57:52,921 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708579552]
[2022-02-08 23:57:52,921 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:52,922 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-08 23:57:52,922 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:52,922 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-08 23:57:52,923 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-02-08 23:57:52,923 INFO  L87              Difference]: Start difference. First operand 5831 states and 19322 transitions. Second operand  has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:53,167 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:53,167 INFO  L93              Difference]: Finished difference Result 9361 states and 30651 transitions.
[2022-02-08 23:57:53,167 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2022-02-08 23:57:53,168 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 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 58
[2022-02-08 23:57:53,168 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:53,191 INFO  L225             Difference]: With dead ends: 9361
[2022-02-08 23:57:53,192 INFO  L226             Difference]: Without dead ends: 7411
[2022-02-08 23:57:53,192 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342
[2022-02-08 23:57:53,193 INFO  L933         BasicCegarLoop]: 120 mSDtfsCounter, 280 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:53,193 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 583 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:53,208 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7411 states.
[2022-02-08 23:57:53,419 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7411 to 5571.
[2022-02-08 23:57:53,429 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5571 states, 5570 states have (on average 3.3012567324955118) internal successors, (18388), 5570 states have internal predecessors, (18388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:53,448 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5571 states to 5571 states and 18388 transitions.
[2022-02-08 23:57:53,449 INFO  L78                 Accepts]: Start accepts. Automaton has 5571 states and 18388 transitions. Word has length 58
[2022-02-08 23:57:53,449 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:53,449 INFO  L470      AbstractCegarLoop]: Abstraction has 5571 states and 18388 transitions.
[2022-02-08 23:57:53,449 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:53,449 INFO  L276                IsEmpty]: Start isEmpty. Operand 5571 states and 18388 transitions.
[2022-02-08 23:57:53,536 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2022-02-08 23:57:53,537 INFO  L506         BasicCegarLoop]: Found error trace
[2022-02-08 23:57:53,537 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]
[2022-02-08 23:57:53,537 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-08 23:57:53,537 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:53,537 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:53,538 INFO  L85        PathProgramCache]: Analyzing trace with hash 1435773668, now seen corresponding path program 2 times
[2022-02-08 23:57:53,538 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:53,538 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537069664]
[2022-02-08 23:57:53,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:53,538 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:53,568 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:53,659 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:53,660 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:53,660 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537069664]
[2022-02-08 23:57:53,660 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537069664] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:53,660 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:53,660 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-08 23:57:53,660 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128549127]
[2022-02-08 23:57:53,660 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:53,661 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-08 23:57:53,661 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:53,661 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-08 23:57:53,661 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2022-02-08 23:57:53,661 INFO  L87              Difference]: Start difference. First operand 5571 states and 18388 transitions. Second operand  has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:53,783 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:53,784 INFO  L93              Difference]: Finished difference Result 7185 states and 23387 transitions.
[2022-02-08 23:57:53,784 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-02-08 23:57:53,784 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 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 58
[2022-02-08 23:57:53,784 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:53,793 INFO  L225             Difference]: With dead ends: 7185
[2022-02-08 23:57:53,794 INFO  L226             Difference]: Without dead ends: 3360
[2022-02-08 23:57:53,794 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2022-02-08 23:57:53,795 INFO  L933         BasicCegarLoop]: 109 mSDtfsCounter, 280 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:53,795 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 512 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:53,802 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3360 states.
[2022-02-08 23:57:53,849 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3360 to 3136.
[2022-02-08 23:57:53,854 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3136 states, 3135 states have (on average 3.1371610845295055) internal successors, (9835), 3135 states have internal predecessors, (9835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:53,862 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 9835 transitions.
[2022-02-08 23:57:53,862 INFO  L78                 Accepts]: Start accepts. Automaton has 3136 states and 9835 transitions. Word has length 58
[2022-02-08 23:57:53,862 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:53,863 INFO  L470      AbstractCegarLoop]: Abstraction has 3136 states and 9835 transitions.
[2022-02-08 23:57:53,863 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:53,863 INFO  L276                IsEmpty]: Start isEmpty. Operand 3136 states and 9835 transitions.
[2022-02-08 23:57:53,867 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2022-02-08 23:57:53,867 INFO  L506         BasicCegarLoop]: Found error trace
[2022-02-08 23:57:53,868 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]
[2022-02-08 23:57:53,868 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-08 23:57:53,868 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:53,868 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:53,868 INFO  L85        PathProgramCache]: Analyzing trace with hash 1703279368, now seen corresponding path program 1 times
[2022-02-08 23:57:53,868 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:53,868 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164191302]
[2022-02-08 23:57:53,869 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:53,869 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:53,879 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:53,923 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:53,923 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:53,923 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164191302]
[2022-02-08 23:57:53,923 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164191302] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:53,923 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:53,923 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-08 23:57:53,923 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375998498]
[2022-02-08 23:57:53,924 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:53,924 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-08 23:57:53,924 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:53,924 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-08 23:57:53,924 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-02-08 23:57:53,924 INFO  L87              Difference]: Start difference. First operand 3136 states and 9835 transitions. Second operand  has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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)
[2022-02-08 23:57:54,038 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:54,038 INFO  L93              Difference]: Finished difference Result 3556 states and 11126 transitions.
[2022-02-08 23:57:54,039 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-02-08 23:57:54,039 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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
[2022-02-08 23:57:54,039 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:54,046 INFO  L225             Difference]: With dead ends: 3556
[2022-02-08 23:57:54,046 INFO  L226             Difference]: Without dead ends: 2856
[2022-02-08 23:57:54,046 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2022-02-08 23:57:54,047 INFO  L933         BasicCegarLoop]: 105 mSDtfsCounter, 74 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:54,047 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 428 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:54,053 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2856 states.
[2022-02-08 23:57:54,091 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2856.
[2022-02-08 23:57:54,095 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2856 states, 2855 states have (on average 3.1078809106830123) internal successors, (8873), 2855 states have internal predecessors, (8873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:54,101 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 8873 transitions.
[2022-02-08 23:57:54,101 INFO  L78                 Accepts]: Start accepts. Automaton has 2856 states and 8873 transitions. Word has length 59
[2022-02-08 23:57:54,101 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:54,101 INFO  L470      AbstractCegarLoop]: Abstraction has 2856 states and 8873 transitions.
[2022-02-08 23:57:54,101 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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)
[2022-02-08 23:57:54,101 INFO  L276                IsEmpty]: Start isEmpty. Operand 2856 states and 8873 transitions.
[2022-02-08 23:57:54,105 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2022-02-08 23:57:54,106 INFO  L506         BasicCegarLoop]: Found error trace
[2022-02-08 23:57:54,106 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]
[2022-02-08 23:57:54,106 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-08 23:57:54,106 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:54,106 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:54,106 INFO  L85        PathProgramCache]: Analyzing trace with hash -1558244569, now seen corresponding path program 1 times
[2022-02-08 23:57:54,107 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:54,107 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923518753]
[2022-02-08 23:57:54,107 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:54,107 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:54,117 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:54,161 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:54,161 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:54,161 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923518753]
[2022-02-08 23:57:54,161 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923518753] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:54,162 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:54,162 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-08 23:57:54,162 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637291547]
[2022-02-08 23:57:54,162 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:54,162 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-08 23:57:54,162 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:54,162 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-08 23:57:54,163 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-02-08 23:57:54,163 INFO  L87              Difference]: Start difference. First operand 2856 states and 8873 transitions. Second operand  has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 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)
[2022-02-08 23:57:54,242 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:54,243 INFO  L93              Difference]: Finished difference Result 3425 states and 10507 transitions.
[2022-02-08 23:57:54,243 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-02-08 23:57:54,243 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 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
[2022-02-08 23:57:54,243 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:54,249 INFO  L225             Difference]: With dead ends: 3425
[2022-02-08 23:57:54,250 INFO  L226             Difference]: Without dead ends: 2555
[2022-02-08 23:57:54,250 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2022-02-08 23:57:54,250 INFO  L933         BasicCegarLoop]: 93 mSDtfsCounter, 140 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:54,251 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 350 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:54,256 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2555 states.
[2022-02-08 23:57:54,289 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2555.
[2022-02-08 23:57:54,292 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2555 states, 2554 states have (on average 3.0469851213782304) internal successors, (7782), 2554 states have internal predecessors, (7782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:54,297 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 7782 transitions.
[2022-02-08 23:57:54,297 INFO  L78                 Accepts]: Start accepts. Automaton has 2555 states and 7782 transitions. Word has length 61
[2022-02-08 23:57:54,297 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:54,298 INFO  L470      AbstractCegarLoop]: Abstraction has 2555 states and 7782 transitions.
[2022-02-08 23:57:54,298 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 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)
[2022-02-08 23:57:54,298 INFO  L276                IsEmpty]: Start isEmpty. Operand 2555 states and 7782 transitions.
[2022-02-08 23:57:54,301 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2022-02-08 23:57:54,302 INFO  L506         BasicCegarLoop]: Found error trace
[2022-02-08 23:57:54,302 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]
[2022-02-08 23:57:54,302 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-08 23:57:54,302 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:54,302 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:54,302 INFO  L85        PathProgramCache]: Analyzing trace with hash -726345812, now seen corresponding path program 1 times
[2022-02-08 23:57:54,302 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:54,302 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642962781]
[2022-02-08 23:57:54,303 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:54,303 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:54,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:54,365 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:54,365 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:54,365 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642962781]
[2022-02-08 23:57:54,365 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642962781] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:54,365 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:54,365 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-08 23:57:54,366 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922394591]
[2022-02-08 23:57:54,366 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:54,366 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-08 23:57:54,366 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:54,366 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-08 23:57:54,366 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-02-08 23:57:54,367 INFO  L87              Difference]: Start difference. First operand 2555 states and 7782 transitions. Second operand  has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:54,471 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:54,471 INFO  L93              Difference]: Finished difference Result 2432 states and 7190 transitions.
[2022-02-08 23:57:54,472 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-02-08 23:57:54,472 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 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 62
[2022-02-08 23:57:54,472 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:54,476 INFO  L225             Difference]: With dead ends: 2432
[2022-02-08 23:57:54,477 INFO  L226             Difference]: Without dead ends: 1745
[2022-02-08 23:57:54,477 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2022-02-08 23:57:54,478 INFO  L933         BasicCegarLoop]: 93 mSDtfsCounter, 212 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:54,478 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 388 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:54,482 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1745 states.
[2022-02-08 23:57:54,511 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1745.
[2022-02-08 23:57:54,513 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1745 states, 1744 states have (on average 2.8916284403669725) internal successors, (5043), 1744 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:54,517 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 5043 transitions.
[2022-02-08 23:57:54,517 INFO  L78                 Accepts]: Start accepts. Automaton has 1745 states and 5043 transitions. Word has length 62
[2022-02-08 23:57:54,517 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:54,517 INFO  L470      AbstractCegarLoop]: Abstraction has 1745 states and 5043 transitions.
[2022-02-08 23:57:54,517 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:54,518 INFO  L276                IsEmpty]: Start isEmpty. Operand 1745 states and 5043 transitions.
[2022-02-08 23:57:54,520 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2022-02-08 23:57:54,520 INFO  L506         BasicCegarLoop]: Found error trace
[2022-02-08 23:57:54,521 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]
[2022-02-08 23:57:54,521 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-02-08 23:57:54,521 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-08 23:57:54,522 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-02-08 23:57:54,522 INFO  L85        PathProgramCache]: Analyzing trace with hash -1684131233, now seen corresponding path program 1 times
[2022-02-08 23:57:54,522 INFO  L126   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-08 23:57:54,522 INFO  L338   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501376400]
[2022-02-08 23:57:54,522 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-08 23:57:54,523 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-08 23:57:54,542 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-08 23:57:54,609 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-08 23:57:54,609 INFO  L144   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-08 23:57:54,609 INFO  L338   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501376400]
[2022-02-08 23:57:54,609 INFO  L165   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501376400] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-08 23:57:54,609 INFO  L191   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-08 23:57:54,610 INFO  L204   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-08 23:57:54,610 INFO  L118   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341917218]
[2022-02-08 23:57:54,610 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-08 23:57:54,610 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-08 23:57:54,610 INFO  L108   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-08 23:57:54,610 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-08 23:57:54,610 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-08 23:57:54,611 INFO  L87              Difference]: Start difference. First operand 1745 states and 5043 transitions. Second operand  has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:54,668 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-08 23:57:54,669 INFO  L93              Difference]: Finished difference Result 1196 states and 3357 transitions.
[2022-02-08 23:57:54,669 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-02-08 23:57:54,669 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64
[2022-02-08 23:57:54,669 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-08 23:57:54,669 INFO  L225             Difference]: With dead ends: 1196
[2022-02-08 23:57:54,669 INFO  L226             Difference]: Without dead ends: 0
[2022-02-08 23:57:54,669 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2022-02-08 23:57:54,670 INFO  L933         BasicCegarLoop]: 74 mSDtfsCounter, 266 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-08 23:57:54,670 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 299 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-08 23:57:54,671 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-02-08 23:57:54,671 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-02-08 23:57:54,672 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:54,672 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-02-08 23:57:54,672 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64
[2022-02-08 23:57:54,672 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-02-08 23:57:54,672 INFO  L470      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-08 23:57:54,672 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-08 23:57:54,672 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-02-08 23:57:54,672 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-02-08 23:57:54,674 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining)
[2022-02-08 23:57:54,674 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining)
[2022-02-08 23:57:54,675 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining)
[2022-02-08 23:57:54,675 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining)
[2022-02-08 23:57:54,675 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-02-08 23:57:54,678 INFO  L732         BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1]
[2022-02-08 23:57:54,679 INFO  L230   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-08 23:57:54,679 INFO  L180   ceAbstractionStarter]: Computing trace abstraction results
[2022-02-08 23:57:54,682 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 11:57:54 BasicIcfg
[2022-02-08 23:57:54,682 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-08 23:57:54,683 INFO  L158              Benchmark]: Toolchain (without parser) took 4886.88ms. Allocated memory was 182.5MB in the beginning and 1.1GB in the end (delta: 954.2MB). Free memory was 124.0MB in the beginning and 926.7MB in the end (delta: -802.7MB). Peak memory consumption was 152.9MB. Max. memory is 8.0GB.
[2022-02-08 23:57:54,683 INFO  L158              Benchmark]: CDTParser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 141.8MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-08 23:57:54,683 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 356.27ms. Allocated memory was 182.5MB in the beginning and 284.2MB in the end (delta: 101.7MB). Free memory was 123.8MB in the beginning and 246.3MB in the end (delta: -122.5MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB.
[2022-02-08 23:57:54,683 INFO  L158              Benchmark]: Boogie Procedure Inliner took 26.56ms. Allocated memory is still 284.2MB. Free memory was 246.3MB in the beginning and 244.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-08 23:57:54,684 INFO  L158              Benchmark]: Boogie Preprocessor took 18.00ms. Allocated memory is still 284.2MB. Free memory was 244.2MB in the beginning and 242.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-08 23:57:54,684 INFO  L158              Benchmark]: RCFGBuilder took 261.47ms. Allocated memory is still 284.2MB. Free memory was 242.4MB in the beginning and 229.5MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2022-02-08 23:57:54,684 INFO  L158              Benchmark]: TraceAbstraction took 4219.82ms. Allocated memory was 284.2MB in the beginning and 1.1GB in the end (delta: 852.5MB). Free memory was 229.0MB in the beginning and 926.7MB in the end (delta: -697.7MB). Peak memory consumption was 155.8MB. Max. memory is 8.0GB.
[2022-02-08 23:57:54,685 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 141.8MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 356.27ms. Allocated memory was 182.5MB in the beginning and 284.2MB in the end (delta: 101.7MB). Free memory was 123.8MB in the beginning and 246.3MB in the end (delta: -122.5MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 26.56ms. Allocated memory is still 284.2MB. Free memory was 246.3MB in the beginning and 244.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 18.00ms. Allocated memory is still 284.2MB. Free memory was 244.2MB in the beginning and 242.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * RCFGBuilder took 261.47ms. Allocated memory is still 284.2MB. Free memory was 242.4MB in the beginning and 229.5MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
 * TraceAbstraction took 4219.82ms. Allocated memory was 284.2MB in the beginning and 1.1GB in the end (delta: 852.5MB). Free memory was 229.0MB in the beginning and 926.7MB in the end (delta: -697.7MB). Peak memory consumption was 155.8MB. 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
  - PositiveResult [Line: 18]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 7 procedures, 114 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1627 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1627 mSDsluCounter, 3822 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3051 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 433 IncrementalHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 853 mSDtfsCounter, 433 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6590occurred in iteration=0, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 5036 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 472 NumberOfCodeBlocks, 472 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 464 ConstructedInterpolants, 0 QuantifiedInterpolants, 2010 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-02-08 23:57:54,712 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...