/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.0-60729f1
[2020-11-11 23:57:46,486 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-11-11 23:57:46,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-11-11 23:57:46,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-11-11 23:57:46,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-11-11 23:57:46,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-11-11 23:57:46,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-11-11 23:57:46,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-11-11 23:57:46,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-11-11 23:57:46,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-11-11 23:57:46,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-11-11 23:57:46,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-11-11 23:57:46,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-11-11 23:57:46,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-11-11 23:57:46,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-11-11 23:57:46,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-11-11 23:57:46,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-11-11 23:57:46,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-11-11 23:57:46,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-11-11 23:57:46,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-11-11 23:57:46,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-11-11 23:57:46,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-11-11 23:57:46,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-11-11 23:57:46,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-11-11 23:57:46,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-11-11 23:57:46,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-11-11 23:57:46,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-11-11 23:57:46,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-11-11 23:57:46,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-11-11 23:57:46,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-11-11 23:57:46,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-11-11 23:57:46,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-11-11 23:57:46,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-11-11 23:57:46,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-11-11 23:57:46,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-11-11 23:57:46,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-11-11 23:57:46,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-11-11 23:57:46,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-11-11 23:57:46,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-11-11 23:57:46,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-11-11 23:57:46,595 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-SemanticLbe.epf
[2020-11-11 23:57:46,632 INFO L113 SettingsManager]: Loading preferences was successful
[2020-11-11 23:57:46,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-11-11 23:57:46,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-11-11 23:57:46,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-11-11 23:57:46,636 INFO L138 SettingsManager]: * Use SBE=true
[2020-11-11 23:57:46,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-11-11 23:57:46,637 INFO L138 SettingsManager]: * sizeof long=4
[2020-11-11 23:57:46,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-11-11 23:57:46,638 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-11-11 23:57:46,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-11-11 23:57:46,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-11-11 23:57:46,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-11-11 23:57:46,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-11-11 23:57:46,639 INFO L138 SettingsManager]: * sizeof long double=12
[2020-11-11 23:57:46,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-11-11 23:57:46,641 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-11-11 23:57:46,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-11-11 23:57:46,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-11-11 23:57:46,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-11-11 23:57:46,642 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-11-11 23:57:46,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-11-11 23:57:46,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-11-11 23:57:46,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-11-11 23:57:46,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-11-11 23:57:46,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-11-11 23:57:46,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-11-11 23:57:46,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-11-11 23:57:46,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-11-11 23:57:46,644 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-11-11 23:57:47,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-11-11 23:57:47,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-11-11 23:57:47,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-11-11 23:57:47,148 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-11-11 23:57:47,148 INFO L275 PluginConnector]: CDTParser initialized
[2020-11-11 23:57:47,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i
[2020-11-11 23:57:47,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a6660d24/5b5d0c7bbc4e4617a448689457d1b947/FLAG7ba9b1f19
[2020-11-11 23:57:48,120 INFO L306 CDTParser]: Found 1 translation units.
[2020-11-11 23:57:48,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i
[2020-11-11 23:57:48,142 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a6660d24/5b5d0c7bbc4e4617a448689457d1b947/FLAG7ba9b1f19
[2020-11-11 23:57:48,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a6660d24/5b5d0c7bbc4e4617a448689457d1b947
[2020-11-11 23:57:48,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-11-11 23:57:48,345 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-11-11 23:57:48,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-11-11 23:57:48,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-11-11 23:57:48,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-11-11 23:57:48,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:57:48" (1/1) ...
[2020-11-11 23:57:48,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255d2455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:48, skipping insertion in model container
[2020-11-11 23:57:48,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:57:48" (1/1) ...
[2020-11-11 23:57:48,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-11-11 23:57:48,408 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-11-11 23:57:48,792 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-11-11 23:57:48,804 INFO L203 MainTranslator]: Completed pre-run
[2020-11-11 23:57:48,857 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-11-11 23:57:49,008 INFO L208 MainTranslator]: Completed translation
[2020-11-11 23:57:49,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:49 WrapperNode
[2020-11-11 23:57:49,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-11-11 23:57:49,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-11-11 23:57:49,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-11-11 23:57:49,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-11-11 23:57:49,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:49" (1/1) ...
[2020-11-11 23:57:49,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:49" (1/1) ...
[2020-11-11 23:57:49,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-11-11 23:57:49,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-11-11 23:57:49,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-11-11 23:57:49,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-11-11 23:57:49,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:49" (1/1) ...
[2020-11-11 23:57:49,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:49" (1/1) ...
[2020-11-11 23:57:49,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:49" (1/1) ...
[2020-11-11 23:57:49,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:49" (1/1) ...
[2020-11-11 23:57:49,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:49" (1/1) ...
[2020-11-11 23:57:49,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:49" (1/1) ...
[2020-11-11 23:57:49,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:49" (1/1) ...
[2020-11-11 23:57:49,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-11-11 23:57:49,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-11-11 23:57:49,181 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-11-11 23:57:49,181 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-11-11 23:57:49,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:49" (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
[2020-11-11 23:57:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-11-11 23:57:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-11-11 23:57:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-11-11 23:57:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-11-11 23:57:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-11-11 23:57:49,284 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-11-11 23:57:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-11-11 23:57:49,285 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-11-11 23:57:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-11-11 23:57:49,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-11-11 23:57:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-11-11 23:57:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-11-11 23:57:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-11-11 23:57:49,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-11-11 23:57:49,291 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-11-11 23:57:49,779 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-11-11 23:57:49,779 INFO L298 CfgBuilder]: Removed 10 assume(true) statements.
[2020-11-11 23:57:49,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:57:49 BoogieIcfgContainer
[2020-11-11 23:57:49,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-11-11 23:57:49,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-11-11 23:57:49,783 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-11-11 23:57:49,787 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-11-11 23:57:49,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 11:57:48" (1/3) ...
[2020-11-11 23:57:49,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eea007d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:57:49, skipping insertion in model container
[2020-11-11 23:57:49,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:49" (2/3) ...
[2020-11-11 23:57:49,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eea007d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:57:49, skipping insertion in model container
[2020-11-11 23:57:49,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:57:49" (3/3) ...
[2020-11-11 23:57:49,790 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt.i
[2020-11-11 23:57:49,806 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-11-11 23:57:49,806 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-11-11 23:57:49,811 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-11-11 23:57:49,812 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-11-11 23:57:49,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,851 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,851 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,851 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,852 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,852 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,852 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,852 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,853 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,853 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,853 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,853 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,854 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,854 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,854 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,854 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,854 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,855 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,855 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,855 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,855 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,856 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,856 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,856 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,856 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,856 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,857 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,857 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,857 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,857 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,858 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,858 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,858 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,861 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,861 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,869 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,869 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,873 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,873 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-11 23:57:49,877 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-11-11 23:57:49,890 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-11-11 23:57:49,914 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-11-11 23:57:49,914 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-11-11 23:57:49,914 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-11-11 23:57:49,914 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-11-11 23:57:49,915 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-11-11 23:57:49,915 INFO L382 AbstractCegarLoop]: Difference is false
[2020-11-11 23:57:49,915 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-11-11 23:57:49,915 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-11-11 23:57:49,927 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2020-11-11 23:57:49,930 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 76 transitions, 167 flow
[2020-11-11 23:57:49,933 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 76 transitions, 167 flow
[2020-11-11 23:57:49,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 76 transitions, 167 flow
[2020-11-11 23:57:49,981 INFO L129 PetriNetUnfolder]: 3/73 cut-off events.
[2020-11-11 23:57:49,981 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-11-11 23:57:49,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 3/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place.
[2020-11-11 23:57:49,989 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348
[2020-11-11 23:57:53,062 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54
[2020-11-11 23:57:53,282 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54
[2020-11-11 23:57:53,724 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72
[2020-11-11 23:57:53,833 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68
[2020-11-11 23:57:54,038 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72
[2020-11-11 23:57:54,136 INFO L131 LiptonReduction]: Checked pairs total: 2279
[2020-11-11 23:57:54,137 INFO L133 LiptonReduction]: Total number of compositions: 67
[2020-11-11 23:57:54,142 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow
[2020-11-11 23:57:54,169 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 274 states, 272 states have (on average 3.0661764705882355) internal successors, (834), 273 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:54,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 274 states, 272 states have (on average 3.0661764705882355) internal successors, (834), 273 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:54,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-11-11 23:57:54,180 INFO L486 BasicCegarLoop]: Found error trace
[2020-11-11 23:57:54,181 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-11 23:57:54,182 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-11 23:57:54,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-11 23:57:54,188 INFO L82 PathProgramCache]: Analyzing trace with hash -861297365, now seen corresponding path program 1 times
[2020-11-11 23:57:54,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-11 23:57:54,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942475540]
[2020-11-11 23:57:54,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-11 23:57:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-11 23:57:54,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-11 23:57:54,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942475540]
[2020-11-11 23:57:54,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-11 23:57:54,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-11-11 23:57:54,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557775526]
[2020-11-11 23:57:54,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-11-11 23:57:54,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-11 23:57:54,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-11-11 23:57:54,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-11-11 23:57:54,421 INFO L87 Difference]: Start difference. First operand has 274 states, 272 states have (on average 3.0661764705882355) internal successors, (834), 273 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:54,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-11 23:57:54,469 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions.
[2020-11-11 23:57:54,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-11-11 23:57:54,472 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8
[2020-11-11 23:57:54,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-11 23:57:54,495 INFO L225 Difference]: With dead ends: 274
[2020-11-11 23:57:54,499 INFO L226 Difference]: Without dead ends: 226
[2020-11-11 23:57:54,501 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-11-11 23:57:54,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states.
[2020-11-11 23:57:54,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226.
[2020-11-11 23:57:54,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 2.8177777777777777) internal successors, (634), 225 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:54,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions.
[2020-11-11 23:57:54,600 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8
[2020-11-11 23:57:54,605 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-11 23:57:54,606 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions.
[2020-11-11 23:57:54,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:54,606 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions.
[2020-11-11 23:57:54,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-11-11 23:57:54,607 INFO L486 BasicCegarLoop]: Found error trace
[2020-11-11 23:57:54,608 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-11 23:57:54,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-11-11 23:57:54,608 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-11 23:57:54,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-11 23:57:54,609 INFO L82 PathProgramCache]: Analyzing trace with hash -930432044, now seen corresponding path program 1 times
[2020-11-11 23:57:54,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-11 23:57:54,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048052648]
[2020-11-11 23:57:54,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-11 23:57:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-11 23:57:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-11 23:57:54,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048052648]
[2020-11-11 23:57:54,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-11 23:57:54,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-11-11 23:57:54,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876702622]
[2020-11-11 23:57:54,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-11 23:57:54,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-11 23:57:54,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-11 23:57:54,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-11 23:57:54,719 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:54,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-11 23:57:54,797 INFO L93 Difference]: Finished difference Result 262 states and 700 transitions.
[2020-11-11 23:57:54,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-11-11 23:57:54,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9
[2020-11-11 23:57:54,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-11 23:57:54,807 INFO L225 Difference]: With dead ends: 262
[2020-11-11 23:57:54,807 INFO L226 Difference]: Without dead ends: 214
[2020-11-11 23:57:54,808 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-11 23:57:54,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states.
[2020-11-11 23:57:54,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214.
[2020-11-11 23:57:54,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 2.7699530516431925) internal successors, (590), 213 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:54,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 590 transitions.
[2020-11-11 23:57:54,838 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 590 transitions. Word has length 9
[2020-11-11 23:57:54,838 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-11 23:57:54,839 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 590 transitions.
[2020-11-11 23:57:54,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:54,839 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 590 transitions.
[2020-11-11 23:57:54,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-11-11 23:57:54,840 INFO L486 BasicCegarLoop]: Found error trace
[2020-11-11 23:57:54,841 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-11 23:57:54,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-11-11 23:57:54,841 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-11 23:57:54,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-11 23:57:54,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1221326568, now seen corresponding path program 1 times
[2020-11-11 23:57:54,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-11 23:57:54,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018382056]
[2020-11-11 23:57:54,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-11 23:57:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-11 23:57:54,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-11 23:57:54,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018382056]
[2020-11-11 23:57:54,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-11 23:57:54,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-11-11 23:57:54,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547836137]
[2020-11-11 23:57:54,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-11 23:57:54,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-11 23:57:54,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-11 23:57:54,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-11 23:57:54,952 INFO L87 Difference]: Start difference. First operand 214 states and 590 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:54,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-11 23:57:54,985 INFO L93 Difference]: Finished difference Result 244 states and 640 transitions.
[2020-11-11 23:57:54,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-11-11 23:57:54,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10
[2020-11-11 23:57:54,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-11 23:57:54,988 INFO L225 Difference]: With dead ends: 244
[2020-11-11 23:57:54,989 INFO L226 Difference]: Without dead ends: 202
[2020-11-11 23:57:54,989 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-11 23:57:54,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2020-11-11 23:57:55,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202.
[2020-11-11 23:57:55,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 2.716417910447761) internal successors, (546), 201 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 546 transitions.
[2020-11-11 23:57:55,015 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 546 transitions. Word has length 10
[2020-11-11 23:57:55,015 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-11 23:57:55,015 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 546 transitions.
[2020-11-11 23:57:55,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,017 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 546 transitions.
[2020-11-11 23:57:55,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-11-11 23:57:55,019 INFO L486 BasicCegarLoop]: Found error trace
[2020-11-11 23:57:55,020 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-11 23:57:55,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-11-11 23:57:55,021 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-11 23:57:55,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-11 23:57:55,022 INFO L82 PathProgramCache]: Analyzing trace with hash -433221678, now seen corresponding path program 1 times
[2020-11-11 23:57:55,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-11 23:57:55,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081741396]
[2020-11-11 23:57:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-11 23:57:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-11 23:57:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-11 23:57:55,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081741396]
[2020-11-11 23:57:55,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-11 23:57:55,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-11-11 23:57:55,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170544842]
[2020-11-11 23:57:55,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-11 23:57:55,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-11 23:57:55,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-11 23:57:55,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-11 23:57:55,090 INFO L87 Difference]: Start difference. First operand 202 states and 546 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-11 23:57:55,113 INFO L93 Difference]: Finished difference Result 218 states and 566 transitions.
[2020-11-11 23:57:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-11-11 23:57:55,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 11
[2020-11-11 23:57:55,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-11 23:57:55,116 INFO L225 Difference]: With dead ends: 218
[2020-11-11 23:57:55,116 INFO L226 Difference]: Without dead ends: 186
[2020-11-11 23:57:55,117 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-11 23:57:55,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states.
[2020-11-11 23:57:55,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186.
[2020-11-11 23:57:55,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 2.67027027027027) internal successors, (494), 185 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 494 transitions.
[2020-11-11 23:57:55,133 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 494 transitions. Word has length 11
[2020-11-11 23:57:55,133 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-11 23:57:55,133 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 494 transitions.
[2020-11-11 23:57:55,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,134 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 494 transitions.
[2020-11-11 23:57:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-11-11 23:57:55,136 INFO L486 BasicCegarLoop]: Found error trace
[2020-11-11 23:57:55,136 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-11 23:57:55,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-11-11 23:57:55,136 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-11 23:57:55,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-11 23:57:55,137 INFO L82 PathProgramCache]: Analyzing trace with hash -578029698, now seen corresponding path program 1 times
[2020-11-11 23:57:55,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-11 23:57:55,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550459869]
[2020-11-11 23:57:55,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-11 23:57:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-11 23:57:55,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-11 23:57:55,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550459869]
[2020-11-11 23:57:55,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-11 23:57:55,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-11-11 23:57:55,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349800074]
[2020-11-11 23:57:55,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-11 23:57:55,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-11 23:57:55,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-11 23:57:55,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-11 23:57:55,284 INFO L87 Difference]: Start difference. First operand 186 states and 494 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-11 23:57:55,323 INFO L93 Difference]: Finished difference Result 202 states and 488 transitions.
[2020-11-11 23:57:55,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-11-11 23:57:55,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12
[2020-11-11 23:57:55,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-11 23:57:55,326 INFO L225 Difference]: With dead ends: 202
[2020-11-11 23:57:55,326 INFO L226 Difference]: Without dead ends: 154
[2020-11-11 23:57:55,326 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-11 23:57:55,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states.
[2020-11-11 23:57:55,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154.
[2020-11-11 23:57:55,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 2.392156862745098) internal successors, (366), 153 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 366 transitions.
[2020-11-11 23:57:55,334 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 366 transitions. Word has length 12
[2020-11-11 23:57:55,334 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-11 23:57:55,334 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 366 transitions.
[2020-11-11 23:57:55,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,334 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 366 transitions.
[2020-11-11 23:57:55,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-11-11 23:57:55,335 INFO L486 BasicCegarLoop]: Found error trace
[2020-11-11 23:57:55,335 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-11 23:57:55,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-11-11 23:57:55,336 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-11 23:57:55,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-11 23:57:55,336 INFO L82 PathProgramCache]: Analyzing trace with hash -734246661, now seen corresponding path program 1 times
[2020-11-11 23:57:55,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-11 23:57:55,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129855982]
[2020-11-11 23:57:55,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-11 23:57:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-11 23:57:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-11 23:57:55,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129855982]
[2020-11-11 23:57:55,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-11 23:57:55,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-11-11 23:57:55,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998104350]
[2020-11-11 23:57:55,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-11-11 23:57:55,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-11 23:57:55,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-11-11 23:57:55,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-11-11 23:57:55,444 INFO L87 Difference]: Start difference. First operand 154 states and 366 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-11 23:57:55,506 INFO L93 Difference]: Finished difference Result 137 states and 296 transitions.
[2020-11-11 23:57:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-11-11 23:57:55,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13
[2020-11-11 23:57:55,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-11 23:57:55,509 INFO L225 Difference]: With dead ends: 137
[2020-11-11 23:57:55,510 INFO L226 Difference]: Without dead ends: 107
[2020-11-11 23:57:55,510 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-11-11 23:57:55,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states.
[2020-11-11 23:57:55,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107.
[2020-11-11 23:57:55,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 2.1226415094339623) internal successors, (225), 106 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 225 transitions.
[2020-11-11 23:57:55,515 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 225 transitions. Word has length 13
[2020-11-11 23:57:55,515 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-11 23:57:55,515 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 225 transitions.
[2020-11-11 23:57:55,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,515 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 225 transitions.
[2020-11-11 23:57:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-11-11 23:57:55,516 INFO L486 BasicCegarLoop]: Found error trace
[2020-11-11 23:57:55,516 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-11 23:57:55,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-11-11 23:57:55,517 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-11 23:57:55,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-11 23:57:55,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1335502166, now seen corresponding path program 1 times
[2020-11-11 23:57:55,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-11 23:57:55,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893345899]
[2020-11-11 23:57:55,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-11 23:57:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-11 23:57:55,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-11 23:57:55,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893345899]
[2020-11-11 23:57:55,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-11 23:57:55,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-11-11 23:57:55,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027324420]
[2020-11-11 23:57:55,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-11 23:57:55,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-11 23:57:55,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-11 23:57:55,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-11 23:57:55,595 INFO L87 Difference]: Start difference. First operand 107 states and 225 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-11 23:57:55,623 INFO L93 Difference]: Finished difference Result 143 states and 284 transitions.
[2020-11-11 23:57:55,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-11-11 23:57:55,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14
[2020-11-11 23:57:55,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-11 23:57:55,625 INFO L225 Difference]: With dead ends: 143
[2020-11-11 23:57:55,625 INFO L226 Difference]: Without dead ends: 109
[2020-11-11 23:57:55,625 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-11 23:57:55,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states.
[2020-11-11 23:57:55,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105.
[2020-11-11 23:57:55,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 2.0288461538461537) internal successors, (211), 104 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 211 transitions.
[2020-11-11 23:57:55,630 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 211 transitions. Word has length 14
[2020-11-11 23:57:55,630 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-11 23:57:55,630 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 211 transitions.
[2020-11-11 23:57:55,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,631 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 211 transitions.
[2020-11-11 23:57:55,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-11-11 23:57:55,633 INFO L486 BasicCegarLoop]: Found error trace
[2020-11-11 23:57:55,634 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-11 23:57:55,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-11-11 23:57:55,634 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-11 23:57:55,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-11 23:57:55,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1917666405, now seen corresponding path program 1 times
[2020-11-11 23:57:55,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-11 23:57:55,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121348449]
[2020-11-11 23:57:55,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-11 23:57:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-11 23:57:55,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-11 23:57:55,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121348449]
[2020-11-11 23:57:55,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-11 23:57:55,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-11-11 23:57:55,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826068034]
[2020-11-11 23:57:55,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-11 23:57:55,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-11 23:57:55,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-11 23:57:55,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-11 23:57:55,732 INFO L87 Difference]: Start difference. First operand 105 states and 211 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-11 23:57:55,767 INFO L93 Difference]: Finished difference Result 145 states and 273 transitions.
[2020-11-11 23:57:55,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-11-11 23:57:55,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 15
[2020-11-11 23:57:55,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-11 23:57:55,769 INFO L225 Difference]: With dead ends: 145
[2020-11-11 23:57:55,769 INFO L226 Difference]: Without dead ends: 99
[2020-11-11 23:57:55,770 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-11 23:57:55,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2020-11-11 23:57:55,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95.
[2020-11-11 23:57:55,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.8297872340425532) internal successors, (172), 94 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 172 transitions.
[2020-11-11 23:57:55,775 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 172 transitions. Word has length 15
[2020-11-11 23:57:55,775 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-11 23:57:55,775 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 172 transitions.
[2020-11-11 23:57:55,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:55,775 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 172 transitions.
[2020-11-11 23:57:55,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-11-11 23:57:55,776 INFO L486 BasicCegarLoop]: Found error trace
[2020-11-11 23:57:55,776 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-11 23:57:55,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-11-11 23:57:55,777 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-11 23:57:55,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-11 23:57:55,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1549054674, now seen corresponding path program 1 times
[2020-11-11 23:57:55,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-11 23:57:55,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432155988]
[2020-11-11 23:57:55,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-11 23:57:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-11 23:57:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-11 23:57:55,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432155988]
[2020-11-11 23:57:55,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-11 23:57:55,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-11-11 23:57:55,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813164294]
[2020-11-11 23:57:55,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-11-11 23:57:55,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-11 23:57:55,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-11-11 23:57:55,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-11-11 23:57:55,934 INFO L87 Difference]: Start difference. First operand 95 states and 172 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:56,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-11 23:57:56,001 INFO L93 Difference]: Finished difference Result 86 states and 152 transitions.
[2020-11-11 23:57:56,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-11-11 23:57:56,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 15
[2020-11-11 23:57:56,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-11 23:57:56,003 INFO L225 Difference]: With dead ends: 86
[2020-11-11 23:57:56,003 INFO L226 Difference]: Without dead ends: 27
[2020-11-11 23:57:56,003 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2020-11-11 23:57:56,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2020-11-11 23:57:56,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2020-11-11 23:57:56,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:56,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions.
[2020-11-11 23:57:56,005 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 15
[2020-11-11 23:57:56,006 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-11 23:57:56,006 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions.
[2020-11-11 23:57:56,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:56,006 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions.
[2020-11-11 23:57:56,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-11-11 23:57:56,006 INFO L486 BasicCegarLoop]: Found error trace
[2020-11-11 23:57:56,007 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-11 23:57:56,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-11-11 23:57:56,007 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-11 23:57:56,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-11 23:57:56,007 INFO L82 PathProgramCache]: Analyzing trace with hash 535765290, now seen corresponding path program 1 times
[2020-11-11 23:57:56,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-11 23:57:56,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641437000]
[2020-11-11 23:57:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-11 23:57:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-11 23:57:56,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-11 23:57:56,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641437000]
[2020-11-11 23:57:56,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-11 23:57:56,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-11-11 23:57:56,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845494542]
[2020-11-11 23:57:56,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-11-11 23:57:56,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-11 23:57:56,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-11-11 23:57:56,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-11-11 23:57:56,104 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:56,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-11 23:57:56,140 INFO L93 Difference]: Finished difference Result 26 states and 36 transitions.
[2020-11-11 23:57:56,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-11-11 23:57:56,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 17
[2020-11-11 23:57:56,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-11 23:57:56,141 INFO L225 Difference]: With dead ends: 26
[2020-11-11 23:57:56,141 INFO L226 Difference]: Without dead ends: 0
[2020-11-11 23:57:56,141 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-11-11 23:57:56,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-11-11 23:57:56,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-11-11 23:57:56,142 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)
[2020-11-11 23:57:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-11-11 23:57:56,142 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17
[2020-11-11 23:57:56,142 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-11 23:57:56,142 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-11-11 23:57:56,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-11-11 23:57:56,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-11-11 23:57:56,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-11-11 23:57:56,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2020-11-11 23:57:56,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 11:57:56 BasicIcfg
[2020-11-11 23:57:56,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-11-11 23:57:56,149 INFO L168 Benchmark]: Toolchain (without parser) took 7809.61 ms. Allocated memory was 302.0 MB in the beginning and 364.9 MB in the end (delta: 62.9 MB). Free memory was 277.4 MB in the beginning and 320.9 MB in the end (delta: -43.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.0 GB.
[2020-11-11 23:57:56,150 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB.
[2020-11-11 23:57:56,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.80 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 246.1 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB.
[2020-11-11 23:57:56,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.26 ms. Allocated memory is still 302.0 MB. Free memory was 246.1 MB in the beginning and 244.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2020-11-11 23:57:56,157 INFO L168 Benchmark]: Boogie Preprocessor took 76.85 ms. Allocated memory is still 302.0 MB. Free memory was 244.2 MB in the beginning and 284.9 MB in the end (delta: -40.7 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB.
[2020-11-11 23:57:56,162 INFO L168 Benchmark]: RCFGBuilder took 601.05 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 262.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB.
[2020-11-11 23:57:56,165 INFO L168 Benchmark]: TraceAbstraction took 6363.89 ms. Allocated memory was 302.0 MB in the beginning and 364.9 MB in the end (delta: 62.9 MB). Free memory was 262.8 MB in the beginning and 320.9 MB in the end (delta: -58.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.0 GB.
[2020-11-11 23:57:56,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB.
* CACSL2BoogieTranslator took 660.80 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 246.1 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB.
* Boogie Procedure Inliner took 90.26 ms. Allocated memory is still 302.0 MB. Free memory was 246.1 MB in the beginning and 244.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
* Boogie Preprocessor took 76.85 ms. Allocated memory is still 302.0 MB. Free memory was 244.2 MB in the beginning and 284.9 MB in the end (delta: -40.7 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB.
* RCFGBuilder took 601.05 ms. Allocated memory is still 302.0 MB. Free memory was 284.9 MB in the beginning and 262.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB.
* TraceAbstraction took 6363.89 ms. Allocated memory was 302.0 MB in the beginning and 364.9 MB in the end (delta: 62.9 MB). Free memory was 262.8 MB in the beginning and 320.9 MB in the end (delta: -58.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
897 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 50 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.2s, 83 PlacesBefore, 31 PlacesAfterwards, 76 TransitionsBefore, 22 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 2279 MoverChecksTotal
- PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 211 SDtfs, 162 SDslu, 290 SDs, 0 SdLazy, 132 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 3720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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
RESULT: Ultimate proved your program to be correct!
Received shutdown request...