/usr/bin/java -Xmx16000000000 -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/safe025_pso.opt.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788
[2021-06-01 16:33:47,279 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-06-01 16:33:47,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-06-01 16:33:47,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-06-01 16:33:47,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-06-01 16:33:47,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-06-01 16:33:47,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-06-01 16:33:47,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-06-01 16:33:47,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-06-01 16:33:47,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-06-01 16:33:47,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-06-01 16:33:47,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-06-01 16:33:47,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-06-01 16:33:47,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-06-01 16:33:47,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-06-01 16:33:47,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-06-01 16:33:47,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-06-01 16:33:47,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-06-01 16:33:47,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-06-01 16:33:47,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-06-01 16:33:47,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-06-01 16:33:47,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-06-01 16:33:47,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-06-01 16:33:47,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-06-01 16:33:47,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-06-01 16:33:47,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-06-01 16:33:47,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-06-01 16:33:47,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-06-01 16:33:47,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-06-01 16:33:47,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-06-01 16:33:47,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-06-01 16:33:47,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
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[2021-06-01 16:33:47,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-06-01 16:33:47,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2021-06-01 16:33:47,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2021-06-01 16:33:47,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-06-01 16:33:47,336 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
[2021-06-01 16:33:47,355 INFO L113 SettingsManager]: Loading preferences was successful
[2021-06-01 16:33:47,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-06-01 16:33:47,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-06-01 16:33:47,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-06-01 16:33:47,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-06-01 16:33:47,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-06-01 16:33:47,358 INFO L138 SettingsManager]: * Use SBE=true
[2021-06-01 16:33:47,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-06-01 16:33:47,358 INFO L138 SettingsManager]: * sizeof long=4
[2021-06-01 16:33:47,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-06-01 16:33:47,358 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-06-01 16:33:47,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-06-01 16:33:47,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-06-01 16:33:47,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-06-01 16:33:47,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-06-01 16:33:47,359 INFO L138 SettingsManager]: * sizeof long double=12
[2021-06-01 16:33:47,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-06-01 16:33:47,359 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-06-01 16:33:47,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-06-01 16:33:47,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-06-01 16:33:47,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-06-01 16:33:47,360 INFO L138 SettingsManager]: * To the following directory=./dump/
[2021-06-01 16:33:47,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-06-01 16:33:47,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-06-01 16:33:47,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-06-01 16:33:47,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-06-01 16:33:47,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-06-01 16:33:47,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-06-01 16:33:47,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-06-01 16:33:47,361 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-06-01 16:33:47,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-06-01 16:33:47,361 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-06-01 16:33:47,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-06-01 16:33:47,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-06-01 16:33:47,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-06-01 16:33:47,739 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-06-01 16:33:47,740 INFO L275 PluginConnector]: CDTParser initialized
[2021-06-01 16:33:47,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i
[2021-06-01 16:33:47,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e61886abd/ee93c099c9f94b22936d8e2d593261fc/FLAGc6c1da3ba
[2021-06-01 16:33:48,332 INFO L306 CDTParser]: Found 1 translation units.
[2021-06-01 16:33:48,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i
[2021-06-01 16:33:48,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e61886abd/ee93c099c9f94b22936d8e2d593261fc/FLAGc6c1da3ba
[2021-06-01 16:33:48,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e61886abd/ee93c099c9f94b22936d8e2d593261fc
[2021-06-01 16:33:48,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-06-01 16:33:48,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2021-06-01 16:33:48,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-06-01 16:33:48,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-06-01 16:33:48,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-06-01 16:33:48,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 04:33:48" (1/1) ...
[2021-06-01 16:33:48,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9e1fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:48, skipping insertion in model container
[2021-06-01 16:33:48,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 04:33:48" (1/1) ...
[2021-06-01 16:33:48,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-06-01 16:33:48,842 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-06-01 16:33:48,962 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i[949,962]
[2021-06-01 16:33:49,086 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-06-01 16:33:49,093 INFO L203 MainTranslator]: Completed pre-run
[2021-06-01 16:33:49,102 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i[949,962]
[2021-06-01 16:33:49,128 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-06-01 16:33:49,199 INFO L208 MainTranslator]: Completed translation
[2021-06-01 16:33:49,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:49 WrapperNode
[2021-06-01 16:33:49,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-06-01 16:33:49,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-06-01 16:33:49,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-06-01 16:33:49,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-06-01 16:33:49,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:49" (1/1) ...
[2021-06-01 16:33:49,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:49" (1/1) ...
[2021-06-01 16:33:49,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-06-01 16:33:49,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-06-01 16:33:49,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-06-01 16:33:49,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-06-01 16:33:49,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:49" (1/1) ...
[2021-06-01 16:33:49,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:49" (1/1) ...
[2021-06-01 16:33:49,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:49" (1/1) ...
[2021-06-01 16:33:49,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:49" (1/1) ...
[2021-06-01 16:33:49,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:49" (1/1) ...
[2021-06-01 16:33:49,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:49" (1/1) ...
[2021-06-01 16:33:49,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:49" (1/1) ...
[2021-06-01 16:33:49,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-06-01 16:33:49,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-06-01 16:33:49,275 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-06-01 16:33:49,276 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-06-01 16:33:49,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:49" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-06-01 16:33:49,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-06-01 16:33:49,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2021-06-01 16:33:49,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-06-01 16:33:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-06-01 16:33:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2021-06-01 16:33:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2021-06-01 16:33:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2021-06-01 16:33:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2021-06-01 16:33:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2021-06-01 16:33:49,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2021-06-01 16:33:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-06-01 16:33:49,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2021-06-01 16:33:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-06-01 16:33:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-06-01 16:33:49,350 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-06-01 16:33:49,813 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-06-01 16:33:49,813 INFO L299 CfgBuilder]: Removed 8 assume(true) statements.
[2021-06-01 16:33:49,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 04:33:49 BoogieIcfgContainer
[2021-06-01 16:33:49,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-06-01 16:33:49,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-06-01 16:33:49,818 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-06-01 16:33:49,821 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-06-01 16:33:49,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.06 04:33:48" (1/3) ...
[2021-06-01 16:33:49,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2661dc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 04:33:49, skipping insertion in model container
[2021-06-01 16:33:49,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:33:49" (2/3) ...
[2021-06-01 16:33:49,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2661dc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 04:33:49, skipping insertion in model container
[2021-06-01 16:33:49,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 04:33:49" (3/3) ...
[2021-06-01 16:33:49,826 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.opt.i
[2021-06-01 16:33:49,831 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-06-01 16:33:49,831 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-06-01 16:33:49,831 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-06-01 16:33:49,832 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-06-01 16:33:49,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,869 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,869 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,870 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,872 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,874 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,874 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,875 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,876 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,876 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,883 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,883 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,884 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,884 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,884 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,884 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,884 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,885 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,888 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,888 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,893 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,893 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,893 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,897 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,897 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:33:49,902 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-06-01 16:33:49,922 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2021-06-01 16:33:49,945 INFO L378 AbstractCegarLoop]: Interprodecural is true
[2021-06-01 16:33:49,946 INFO L379 AbstractCegarLoop]: Hoare is false
[2021-06-01 16:33:49,946 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-06-01 16:33:49,946 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-06-01 16:33:49,946 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-06-01 16:33:49,946 INFO L383 AbstractCegarLoop]: Difference is false
[2021-06-01 16:33:49,946 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-06-01 16:33:49,946 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start========
[2021-06-01 16:33:49,957 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow
[2021-06-01 16:33:50,491 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:50,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:50,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2021-06-01 16:33:50,577 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 16:33:50,577 INFO L554 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]
[2021-06-01 16:33:50,578 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:33:50,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:33:50,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1943773822, now seen corresponding path program 1 times
[2021-06-01 16:33:50,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:33:50,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132026263]
[2021-06-01 16:33:50,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:33:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:33:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:33:50,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:33:50,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132026263]
[2021-06-01 16:33:50,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132026263] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:33:50,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:33:50,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-06-01 16:33:50,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730133447]
[2021-06-01 16:33:50,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-06-01 16:33:50,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:33:50,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-06-01 16:33:50,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-06-01 16:33:51,021 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 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 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:51,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:33:51,293 INFO L93 Difference]: Finished difference Result 12223 states and 42407 transitions.
[2021-06-01 16:33:51,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-06-01 16:33:51,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 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 49
[2021-06-01 16:33:51,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:33:51,336 INFO L225 Difference]: With dead ends: 12223
[2021-06-01 16:33:51,336 INFO L226 Difference]: Without dead ends: 4628
[2021-06-01 16:33:51,337 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 109.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 16:33:51,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4628 states.
[2021-06-01 16:33:51,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4628 to 4628.
[2021-06-01 16:33:51,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4628 states, 4627 states have (on average 3.38599524529933) internal successors, (15667), 4627 states have internal predecessors, (15667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:51,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4628 states to 4628 states and 15667 transitions.
[2021-06-01 16:33:51,655 INFO L78 Accepts]: Start accepts. Automaton has 4628 states and 15667 transitions. Word has length 49
[2021-06-01 16:33:51,656 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:33:51,656 INFO L482 AbstractCegarLoop]: Abstraction has 4628 states and 15667 transitions.
[2021-06-01 16:33:51,656 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:51,656 INFO L276 IsEmpty]: Start isEmpty. Operand 4628 states and 15667 transitions.
[2021-06-01 16:33:51,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2021-06-01 16:33:51,665 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 16:33:51,665 INFO L554 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]
[2021-06-01 16:33:51,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-06-01 16:33:51,665 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:33:51,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:33:51,666 INFO L82 PathProgramCache]: Analyzing trace with hash -303430371, now seen corresponding path program 1 times
[2021-06-01 16:33:51,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:33:51,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987978428]
[2021-06-01 16:33:51,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:33:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:33:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:33:51,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:33:51,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987978428]
[2021-06-01 16:33:51,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987978428] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:33:51,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:33:51,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-06-01 16:33:51,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784218354]
[2021-06-01 16:33:51,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 16:33:51,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:33:51,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 16:33:51,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-06-01 16:33:51,829 INFO L87 Difference]: Start difference. First operand 4628 states and 15667 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:52,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:33:52,120 INFO L93 Difference]: Finished difference Result 7508 states and 24942 transitions.
[2021-06-01 16:33:52,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 16:33:52,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 51
[2021-06-01 16:33:52,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:33:52,153 INFO L225 Difference]: With dead ends: 7508
[2021-06-01 16:33:52,153 INFO L226 Difference]: Without dead ends: 5584
[2021-06-01 16:33:52,154 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 223.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2021-06-01 16:33:52,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5584 states.
[2021-06-01 16:33:52,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5584 to 4616.
[2021-06-01 16:33:52,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4616 states, 4615 states have (on average 3.342145178764897) internal successors, (15424), 4615 states have internal predecessors, (15424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:52,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4616 states to 4616 states and 15424 transitions.
[2021-06-01 16:33:52,335 INFO L78 Accepts]: Start accepts. Automaton has 4616 states and 15424 transitions. Word has length 51
[2021-06-01 16:33:52,335 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:33:52,335 INFO L482 AbstractCegarLoop]: Abstraction has 4616 states and 15424 transitions.
[2021-06-01 16:33:52,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:52,336 INFO L276 IsEmpty]: Start isEmpty. Operand 4616 states and 15424 transitions.
[2021-06-01 16:33:52,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2021-06-01 16:33:52,347 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 16:33:52,347 INFO L554 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]
[2021-06-01 16:33:52,347 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-06-01 16:33:52,348 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:33:52,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:33:52,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1505957406, now seen corresponding path program 1 times
[2021-06-01 16:33:52,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:33:52,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421110888]
[2021-06-01 16:33:52,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:33:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:33:52,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:33:52,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:33:52,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421110888]
[2021-06-01 16:33:52,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421110888] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:33:52,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:33:52,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-06-01 16:33:52,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491071047]
[2021-06-01 16:33:52,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 16:33:52,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:33:52,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 16:33:52,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2021-06-01 16:33:52,562 INFO L87 Difference]: Start difference. First operand 4616 states and 15424 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:52,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:33:52,840 INFO L93 Difference]: Finished difference Result 7298 states and 24180 transitions.
[2021-06-01 16:33:52,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 16:33:52,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 53
[2021-06-01 16:33:52,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:33:52,880 INFO L225 Difference]: With dead ends: 7298
[2021-06-01 16:33:52,880 INFO L226 Difference]: Without dead ends: 4350
[2021-06-01 16:33:52,881 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 206.6ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342
[2021-06-01 16:33:52,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4350 states.
[2021-06-01 16:33:53,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4350 to 4126.
[2021-06-01 16:33:53,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4126 states, 4125 states have (on average 3.2996363636363637) internal successors, (13611), 4125 states have internal predecessors, (13611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:53,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 13611 transitions.
[2021-06-01 16:33:53,027 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 13611 transitions. Word has length 53
[2021-06-01 16:33:53,029 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:33:53,029 INFO L482 AbstractCegarLoop]: Abstraction has 4126 states and 13611 transitions.
[2021-06-01 16:33:53,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:53,029 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 13611 transitions.
[2021-06-01 16:33:53,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2021-06-01 16:33:53,039 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 16:33:53,039 INFO L554 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]
[2021-06-01 16:33:53,039 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-06-01 16:33:53,040 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:33:53,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:33:53,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1566342532, now seen corresponding path program 1 times
[2021-06-01 16:33:53,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:33:53,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103053692]
[2021-06-01 16:33:53,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:33:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:33:53,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:33:53,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:33:53,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103053692]
[2021-06-01 16:33:53,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103053692] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:33:53,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:33:53,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-06-01 16:33:53,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169713651]
[2021-06-01 16:33:53,241 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-06-01 16:33:53,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:33:53,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-06-01 16:33:53,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-06-01 16:33:53,242 INFO L87 Difference]: Start difference. First operand 4126 states and 13611 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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)
[2021-06-01 16:33:53,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:33:53,364 INFO L93 Difference]: Finished difference Result 5189 states and 16882 transitions.
[2021-06-01 16:33:53,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-06-01 16:33:53,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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
[2021-06-01 16:33:53,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:33:53,377 INFO L225 Difference]: With dead ends: 5189
[2021-06-01 16:33:53,377 INFO L226 Difference]: Without dead ends: 3753
[2021-06-01 16:33:53,378 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 151.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 16:33:53,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states.
[2021-06-01 16:33:53,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753.
[2021-06-01 16:33:53,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 3752 states have (on average 3.236673773987207) internal successors, (12144), 3752 states have internal predecessors, (12144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:53,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 12144 transitions.
[2021-06-01 16:33:53,486 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 12144 transitions. Word has length 54
[2021-06-01 16:33:53,488 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:33:53,488 INFO L482 AbstractCegarLoop]: Abstraction has 3753 states and 12144 transitions.
[2021-06-01 16:33:53,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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)
[2021-06-01 16:33:53,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 12144 transitions.
[2021-06-01 16:33:53,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2021-06-01 16:33:53,497 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 16:33:53,497 INFO L554 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]
[2021-06-01 16:33:53,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-06-01 16:33:53,498 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:33:53,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:33:53,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1073595617, now seen corresponding path program 1 times
[2021-06-01 16:33:53,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:33:53,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17550947]
[2021-06-01 16:33:53,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:33:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:33:53,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:33:53,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:33:53,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17550947]
[2021-06-01 16:33:53,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17550947] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:33:53,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:33:53,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-06-01 16:33:53,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281333408]
[2021-06-01 16:33:53,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 16:33:53,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:33:53,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 16:33:53,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-06-01 16:33:53,649 INFO L87 Difference]: Start difference. First operand 3753 states and 12144 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:53,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:33:53,784 INFO L93 Difference]: Finished difference Result 3927 states and 12383 transitions.
[2021-06-01 16:33:53,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 16:33:53,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 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 55
[2021-06-01 16:33:53,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:33:53,792 INFO L225 Difference]: With dead ends: 3927
[2021-06-01 16:33:53,792 INFO L226 Difference]: Without dead ends: 2751
[2021-06-01 16:33:53,792 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 104.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2021-06-01 16:33:53,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states.
[2021-06-01 16:33:53,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 2751.
[2021-06-01 16:33:53,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2751 states, 2750 states have (on average 3.096363636363636) internal successors, (8515), 2750 states have internal predecessors, (8515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:53,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2751 states to 2751 states and 8515 transitions.
[2021-06-01 16:33:53,864 INFO L78 Accepts]: Start accepts. Automaton has 2751 states and 8515 transitions. Word has length 55
[2021-06-01 16:33:53,864 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:33:53,864 INFO L482 AbstractCegarLoop]: Abstraction has 2751 states and 8515 transitions.
[2021-06-01 16:33:53,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:53,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2751 states and 8515 transitions.
[2021-06-01 16:33:53,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2021-06-01 16:33:53,871 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 16:33:53,871 INFO L554 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]
[2021-06-01 16:33:53,871 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-06-01 16:33:53,871 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:33:53,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:33:53,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1221177026, now seen corresponding path program 1 times
[2021-06-01 16:33:53,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:33:53,872 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051636066]
[2021-06-01 16:33:53,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:33:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:33:53,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:33:53,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:33:53,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051636066]
[2021-06-01 16:33:54,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051636066] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:33:54,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:33:54,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 16:33:54,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019445849]
[2021-06-01 16:33:54,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 16:33:54,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:33:54,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 16:33:54,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 16:33:54,001 INFO L87 Difference]: Start difference. First operand 2751 states and 8515 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:54,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:33:54,144 INFO L93 Difference]: Finished difference Result 2364 states and 7171 transitions.
[2021-06-01 16:33:54,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 16:33:54,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 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 57
[2021-06-01 16:33:54,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:33:54,149 INFO L225 Difference]: With dead ends: 2364
[2021-06-01 16:33:54,149 INFO L226 Difference]: Without dead ends: 1644
[2021-06-01 16:33:54,149 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 114.1ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2021-06-01 16:33:54,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states.
[2021-06-01 16:33:54,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1596.
[2021-06-01 16:33:54,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1595 states have (on average 2.9579937304075234) internal successors, (4718), 1595 states have internal predecessors, (4718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:54,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 4718 transitions.
[2021-06-01 16:33:54,185 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 4718 transitions. Word has length 57
[2021-06-01 16:33:54,185 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:33:54,185 INFO L482 AbstractCegarLoop]: Abstraction has 1596 states and 4718 transitions.
[2021-06-01 16:33:54,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:54,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 4718 transitions.
[2021-06-01 16:33:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2021-06-01 16:33:54,189 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 16:33:54,189 INFO L554 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]
[2021-06-01 16:33:54,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-06-01 16:33:54,190 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:33:54,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:33:54,190 INFO L82 PathProgramCache]: Analyzing trace with hash 491831026, now seen corresponding path program 1 times
[2021-06-01 16:33:54,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:33:54,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559254733]
[2021-06-01 16:33:54,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:33:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:33:54,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:33:54,277 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:33:54,277 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559254733]
[2021-06-01 16:33:54,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559254733] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:33:54,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:33:54,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-06-01 16:33:54,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134211380]
[2021-06-01 16:33:54,278 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 16:33:54,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:33:54,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 16:33:54,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2021-06-01 16:33:54,279 INFO L87 Difference]: Start difference. First operand 1596 states and 4718 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:54,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:33:54,408 INFO L93 Difference]: Finished difference Result 2371 states and 6994 transitions.
[2021-06-01 16:33:54,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 16:33:54,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61
[2021-06-01 16:33:54,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:33:54,412 INFO L225 Difference]: With dead ends: 2371
[2021-06-01 16:33:54,412 INFO L226 Difference]: Without dead ends: 1141
[2021-06-01 16:33:54,415 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 107.3ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2021-06-01 16:33:54,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states.
[2021-06-01 16:33:54,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1057.
[2021-06-01 16:33:54,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1056 states have (on average 2.877840909090909) internal successors, (3039), 1056 states have internal predecessors, (3039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:54,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 3039 transitions.
[2021-06-01 16:33:54,436 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 3039 transitions. Word has length 61
[2021-06-01 16:33:54,436 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:33:54,436 INFO L482 AbstractCegarLoop]: Abstraction has 1057 states and 3039 transitions.
[2021-06-01 16:33:54,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:54,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 3039 transitions.
[2021-06-01 16:33:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2021-06-01 16:33:54,438 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 16:33:54,439 INFO L554 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]
[2021-06-01 16:33:54,439 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-06-01 16:33:54,439 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:33:54,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:33:54,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1188267042, now seen corresponding path program 2 times
[2021-06-01 16:33:54,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:33:54,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061155073]
[2021-06-01 16:33:54,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:33:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:33:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:33:54,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:33:54,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061155073]
[2021-06-01 16:33:54,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061155073] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:33:54,567 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:33:54,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 16:33:54,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522427163]
[2021-06-01 16:33:54,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 16:33:54,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:33:54,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 16:33:54,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 16:33:54,574 INFO L87 Difference]: Start difference. First operand 1057 states and 3039 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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)
[2021-06-01 16:33:54,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:33:54,722 INFO L93 Difference]: Finished difference Result 1672 states and 4895 transitions.
[2021-06-01 16:33:54,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-06-01 16:33:54,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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
[2021-06-01 16:33:54,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:33:54,725 INFO L225 Difference]: With dead ends: 1672
[2021-06-01 16:33:54,725 INFO L226 Difference]: Without dead ends: 1132
[2021-06-01 16:33:54,726 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 107.8ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132
[2021-06-01 16:33:54,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states.
[2021-06-01 16:33:54,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1012.
[2021-06-01 16:33:54,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1011 states have (on average 2.851632047477745) internal successors, (2883), 1011 states have internal predecessors, (2883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 16:33:54,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 2883 transitions.
[2021-06-01 16:33:54,745 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 2883 transitions. Word has length 61
[2021-06-01 16:33:54,745 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:33:54,745 INFO L482 AbstractCegarLoop]: Abstraction has 1012 states and 2883 transitions.
[2021-06-01 16:33:54,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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)
[2021-06-01 16:33:54,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 2883 transitions.
[2021-06-01 16:33:54,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2021-06-01 16:33:54,747 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 16:33:54,747 INFO L554 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]
[2021-06-01 16:33:54,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-06-01 16:33:54,747 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:33:54,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:33:54,748 INFO L82 PathProgramCache]: Analyzing trace with hash 78142742, now seen corresponding path program 3 times
[2021-06-01 16:33:54,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:33:54,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938752859]
[2021-06-01 16:33:54,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:33:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:33:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:33:54,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:33:54,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938752859]
[2021-06-01 16:33:54,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938752859] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:33:54,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:33:54,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 16:33:54,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886499942]
[2021-06-01 16:33:54,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 16:33:54,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:33:54,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 16:33:54,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 16:33:54,867 INFO L87 Difference]: Start difference. First operand 1012 states and 2883 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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)
[2021-06-01 16:33:54,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:33:54,934 INFO L93 Difference]: Finished difference Result 958 states and 2721 transitions.
[2021-06-01 16:33:54,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-06-01 16:33:54,934 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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
[2021-06-01 16:33:54,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:33:54,934 INFO L225 Difference]: With dead ends: 958
[2021-06-01 16:33:54,934 INFO L226 Difference]: Without dead ends: 0
[2021-06-01 16:33:54,935 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 89.3ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132
[2021-06-01 16:33:54,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-06-01 16:33:54,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-06-01 16:33:54,935 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)
[2021-06-01 16:33:54,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-06-01 16:33:54,935 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61
[2021-06-01 16:33:54,935 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:33:54,935 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-06-01 16:33:54,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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)
[2021-06-01 16:33:54,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-06-01 16:33:54,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-06-01 16:33:54,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-06-01 16:33:54,938 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-06-01 16:33:54,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.06 04:33:54 BasicIcfg
[2021-06-01 16:33:54,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-06-01 16:33:54,941 INFO L168 Benchmark]: Toolchain (without parser) took 6166.05 ms. Allocated memory was 356.5 MB in the beginning and 817.9 MB in the end (delta: 461.4 MB). Free memory was 319.2 MB in the beginning and 484.8 MB in the end (delta: -165.5 MB). Peak memory consumption was 297.0 MB. Max. memory is 16.0 GB.
[2021-06-01 16:33:54,941 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 356.5 MB. Free memory was 337.2 MB in the beginning and 337.2 MB in the end (delta: 70.2 kB). There was no memory consumed. Max. memory is 16.0 GB.
[2021-06-01 16:33:54,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.83 ms. Allocated memory is still 356.5 MB. Free memory was 319.0 MB in the beginning and 318.2 MB in the end (delta: 855.1 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB.
[2021-06-01 16:33:54,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.06 ms. Allocated memory is still 356.5 MB. Free memory was 318.2 MB in the beginning and 316.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-06-01 16:33:54,942 INFO L168 Benchmark]: Boogie Preprocessor took 17.95 ms. Allocated memory is still 356.5 MB. Free memory was 316.3 MB in the beginning and 314.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-06-01 16:33:54,942 INFO L168 Benchmark]: RCFGBuilder took 541.14 ms. Allocated memory is still 356.5 MB. Free memory was 314.6 MB in the beginning and 290.9 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB.
[2021-06-01 16:33:54,942 INFO L168 Benchmark]: TraceAbstraction took 5122.13 ms. Allocated memory was 356.5 MB in the beginning and 817.9 MB in the end (delta: 461.4 MB). Free memory was 290.2 MB in the beginning and 484.8 MB in the end (delta: -194.6 MB). Peak memory consumption was 268.6 MB. Max. memory is 16.0 GB.
[2021-06-01 16:33:54,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.17 ms. Allocated memory is still 356.5 MB. Free memory was 337.2 MB in the beginning and 337.2 MB in the end (delta: 70.2 kB). There was no memory consumed. Max. memory is 16.0 GB.
* CACSL2BoogieTranslator took 421.83 ms. Allocated memory is still 356.5 MB. Free memory was 319.0 MB in the beginning and 318.2 MB in the end (delta: 855.1 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB.
* Boogie Procedure Inliner took 55.06 ms. Allocated memory is still 356.5 MB. Free memory was 318.2 MB in the beginning and 316.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
* Boogie Preprocessor took 17.95 ms. Allocated memory is still 356.5 MB. Free memory was 316.3 MB in the beginning and 314.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
* RCFGBuilder took 541.14 ms. Allocated memory is still 356.5 MB. Free memory was 314.6 MB in the beginning and 290.9 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB.
* TraceAbstraction took 5122.13 ms. Allocated memory was 356.5 MB in the beginning and 817.9 MB in the end (delta: 461.4 MB). Free memory was 290.2 MB in the beginning and 484.8 MB in the end (delta: -194.6 MB). Peak memory consumption was 268.6 MB. Max. memory is 16.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- 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 for errors in thread instance: ULTIMATE.start with 1 thread instances
CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4992.6ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 136.8ms, AutomataDifference: 1786.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 545.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 952 SDtfs, 1600 SDslu, 3403 SDs, 0 SdLazy, 413 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 331.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1215.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 887.8ms AutomataMinimizationTime, 9 MinimizatonAttempts, 1444 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 37.9ms SsaConstructionTime, 243.3ms SatisfiabilityAnalysisTime, 1154.8ms InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 493 ConstructedInterpolants, 0 QuantifiedInterpolants, 1673 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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!
Received shutdown request...