/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.0-aa1e80b
[2020-12-17 15:06:50,386 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-12-17 15:06:50,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-12-17 15:06:50,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-12-17 15:06:50,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-12-17 15:06:50,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-12-17 15:06:50,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-12-17 15:06:50,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-12-17 15:06:50,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-12-17 15:06:50,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-12-17 15:06:50,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-12-17 15:06:50,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-12-17 15:06:50,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-12-17 15:06:50,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-12-17 15:06:50,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-12-17 15:06:50,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-12-17 15:06:50,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-12-17 15:06:50,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-12-17 15:06:50,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-12-17 15:06:50,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-12-17 15:06:50,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-12-17 15:06:50,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-12-17 15:06:50,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-12-17 15:06:50,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-12-17 15:06:50,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-12-17 15:06:50,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-12-17 15:06:50,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-12-17 15:06:50,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
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[2020-12-17 15:06:50,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-12-17 15:06:50,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-12-17 15:06:50,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf
[2020-12-17 15:06:50,566 INFO L113 SettingsManager]: Loading preferences was successful
[2020-12-17 15:06:50,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-12-17 15:06:50,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-12-17 15:06:50,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-12-17 15:06:50,573 INFO L138 SettingsManager]: * Use SBE=true
[2020-12-17 15:06:50,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-12-17 15:06:50,574 INFO L138 SettingsManager]: * sizeof long=4
[2020-12-17 15:06:50,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-12-17 15:06:50,575 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-12-17 15:06:50,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-12-17 15:06:50,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-12-17 15:06:50,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-12-17 15:06:50,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-12-17 15:06:50,577 INFO L138 SettingsManager]: * sizeof long double=12
[2020-12-17 15:06:50,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-12-17 15:06:50,578 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-12-17 15:06:50,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-12-17 15:06:50,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-12-17 15:06:50,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-12-17 15:06:50,579 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-12-17 15:06:50,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-12-17 15:06:50,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-12-17 15:06:50,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-12-17 15:06:50,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-12-17 15:06:50,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-12-17 15:06:50,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-12-17 15:06:50,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-12-17 15:06:50,581 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2020-12-17 15:06:50,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-12-17 15:06:50,581 INFO L138 SettingsManager]: * Minimization of abstraction=NONE
[2020-12-17 15:06:50,582 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-12-17 15:06:51,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-12-17 15:06:51,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-12-17 15:06:51,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-12-17 15:06:51,045 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-12-17 15:06:51,046 INFO L275 PluginConnector]: CDTParser initialized
[2020-12-17 15:06:51,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i
[2020-12-17 15:06:51,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bd6195e2/48b7a285e8f9423cbfea8e727514f435/FLAGce7ece0ba
[2020-12-17 15:06:51,888 INFO L306 CDTParser]: Found 1 translation units.
[2020-12-17 15:06:51,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i
[2020-12-17 15:06:51,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bd6195e2/48b7a285e8f9423cbfea8e727514f435/FLAGce7ece0ba
[2020-12-17 15:06:52,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bd6195e2/48b7a285e8f9423cbfea8e727514f435
[2020-12-17 15:06:52,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-12-17 15:06:52,155 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-12-17 15:06:52,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-12-17 15:06:52,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-12-17 15:06:52,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-12-17 15:06:52,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:06:52" (1/1) ...
[2020-12-17 15:06:52,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13091dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52, skipping insertion in model container
[2020-12-17 15:06:52,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:06:52" (1/1) ...
[2020-12-17 15:06:52,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-12-17 15:06:52,247 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-12-17 15:06:52,712 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-12-17 15:06:52,730 INFO L203 MainTranslator]: Completed pre-run
[2020-12-17 15:06:52,825 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-12-17 15:06:52,943 INFO L208 MainTranslator]: Completed translation
[2020-12-17 15:06:52,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52 WrapperNode
[2020-12-17 15:06:52,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-12-17 15:06:52,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-12-17 15:06:52,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-12-17 15:06:52,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-12-17 15:06:52,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52" (1/1) ...
[2020-12-17 15:06:52,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52" (1/1) ...
[2020-12-17 15:06:53,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-12-17 15:06:53,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-12-17 15:06:53,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-12-17 15:06:53,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-12-17 15:06:53,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52" (1/1) ...
[2020-12-17 15:06:53,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52" (1/1) ...
[2020-12-17 15:06:53,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52" (1/1) ...
[2020-12-17 15:06:53,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52" (1/1) ...
[2020-12-17 15:06:53,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52" (1/1) ...
[2020-12-17 15:06:53,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52" (1/1) ...
[2020-12-17 15:06:53,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52" (1/1) ...
[2020-12-17 15:06:53,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-12-17 15:06:53,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-12-17 15:06:53,063 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-12-17 15:06:53,063 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-12-17 15:06:53,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52" (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
[2020-12-17 15:06:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure thr1
[2020-12-17 15:06:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1
[2020-12-17 15:06:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-12-17 15:06:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-12-17 15:06:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-12-17 15:06:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-12-17 15:06:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-12-17 15:06:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-12-17 15:06:53,208 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-12-17 15:06:53,798 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-12-17 15:06:53,798 INFO L298 CfgBuilder]: Removed 20 assume(true) statements.
[2020-12-17 15:06:53,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:06:53 BoogieIcfgContainer
[2020-12-17 15:06:53,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-12-17 15:06:53,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-12-17 15:06:53,802 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-12-17 15:06:53,806 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-12-17 15:06:53,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:06:52" (1/3) ...
[2020-12-17 15:06:53,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a11720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:06:53, skipping insertion in model container
[2020-12-17 15:06:53,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:06:52" (2/3) ...
[2020-12-17 15:06:53,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a11720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:06:53, skipping insertion in model container
[2020-12-17 15:06:53,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:06:53" (3/3) ...
[2020-12-17 15:06:53,810 INFO L111 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i
[2020-12-17 15:06:53,826 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-12-17 15:06:53,827 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-12-17 15:06:53,831 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations.
[2020-12-17 15:06:53,832 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-12-17 15:06:53,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,870 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,870 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,870 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 15:06:53,879 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-12-17 15:06:53,892 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-12-17 15:06:53,915 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-12-17 15:06:53,915 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-12-17 15:06:53,915 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-12-17 15:06:53,915 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-12-17 15:06:53,915 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-12-17 15:06:53,915 INFO L382 AbstractCegarLoop]: Difference is false
[2020-12-17 15:06:53,916 INFO L383 AbstractCegarLoop]: Minimize is NONE
[2020-12-17 15:06:53,916 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-12-17 15:06:53,929 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 96 transitions, 197 flow
[2020-12-17 15:06:54,001 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 774 states, 770 states have (on average 2.8636363636363638) internal successors, (2205), 773 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:54,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 774 states, 770 states have (on average 2.8636363636363638) internal successors, (2205), 773 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:54,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2020-12-17 15:06:54,032 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 15:06:54,033 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 15:06:54,034 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 15:06:54,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 15:06:54,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1965527308, now seen corresponding path program 1 times
[2020-12-17 15:06:54,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 15:06:54,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323146444]
[2020-12-17 15:06:54,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 15:06:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 15:06:54,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 15:06:54,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323146444]
[2020-12-17 15:06:54,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 15:06:54,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-12-17 15:06:54,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296132967]
[2020-12-17 15:06:54,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-12-17 15:06:54,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 15:06:54,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-12-17 15:06:54,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-12-17 15:06:54,411 INFO L87 Difference]: Start difference. First operand has 774 states, 770 states have (on average 2.8636363636363638) internal successors, (2205), 773 states have internal predecessors, (2205), 0 states have call successors, (0), 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 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:54,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 15:06:54,460 INFO L93 Difference]: Finished difference Result 411 states and 1007 transitions.
[2020-12-17 15:06:54,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-12-17 15:06:54,461 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 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 28
[2020-12-17 15:06:54,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 15:06:54,481 INFO L225 Difference]: With dead ends: 411
[2020-12-17 15:06:54,482 INFO L226 Difference]: Without dead ends: 411
[2020-12-17 15:06:54,483 INFO L763 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
[2020-12-17 15:06:54,484 INFO L78 Accepts]: Start accepts. Automaton has 411 states. Word has length 28
[2020-12-17 15:06:54,485 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 15:06:54,485 INFO L481 AbstractCegarLoop]: Abstraction has 411 states.
[2020-12-17 15:06:54,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:54,486 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states.
[2020-12-17 15:06:54,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2020-12-17 15:06:54,489 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 15:06:54,490 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 15:06:54,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-12-17 15:06:54,490 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 15:06:54,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 15:06:54,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1797642954, now seen corresponding path program 1 times
[2020-12-17 15:06:54,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 15:06:54,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463953996]
[2020-12-17 15:06:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 15:06:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 15:06:54,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 15:06:54,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463953996]
[2020-12-17 15:06:54,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 15:06:54,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-12-17 15:06:54,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050292862]
[2020-12-17 15:06:54,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-12-17 15:06:54,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 15:06:54,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-12-17 15:06:54,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-17 15:06:54,578 INFO L87 Difference]: Start difference. First operand 411 states. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:54,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 15:06:54,626 INFO L93 Difference]: Finished difference Result 622 states and 1570 transitions.
[2020-12-17 15:06:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-12-17 15:06:54,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28
[2020-12-17 15:06:54,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 15:06:54,634 INFO L225 Difference]: With dead ends: 622
[2020-12-17 15:06:54,634 INFO L226 Difference]: Without dead ends: 622
[2020-12-17 15:06:54,635 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-17 15:06:54,635 INFO L78 Accepts]: Start accepts. Automaton has 622 states. Word has length 28
[2020-12-17 15:06:54,636 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 15:06:54,636 INFO L481 AbstractCegarLoop]: Abstraction has 622 states.
[2020-12-17 15:06:54,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:54,636 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states.
[2020-12-17 15:06:54,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2020-12-17 15:06:54,638 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 15:06:54,639 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 15:06:54,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-12-17 15:06:54,639 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 15:06:54,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 15:06:54,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1292248925, now seen corresponding path program 1 times
[2020-12-17 15:06:54,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 15:06:54,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077856746]
[2020-12-17 15:06:54,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 15:06:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 15:06:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 15:06:54,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077856746]
[2020-12-17 15:06:54,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 15:06:54,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-12-17 15:06:54,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587860326]
[2020-12-17 15:06:54,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-12-17 15:06:54,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 15:06:54,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-12-17 15:06:54,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-17 15:06:54,740 INFO L87 Difference]: Start difference. First operand 622 states. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:54,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 15:06:54,802 INFO L93 Difference]: Finished difference Result 550 states and 1393 transitions.
[2020-12-17 15:06:54,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-12-17 15:06:54,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 32
[2020-12-17 15:06:54,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 15:06:54,808 INFO L225 Difference]: With dead ends: 550
[2020-12-17 15:06:54,808 INFO L226 Difference]: Without dead ends: 550
[2020-12-17 15:06:54,809 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-17 15:06:54,809 INFO L78 Accepts]: Start accepts. Automaton has 550 states. Word has length 32
[2020-12-17 15:06:54,809 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 15:06:54,809 INFO L481 AbstractCegarLoop]: Abstraction has 550 states.
[2020-12-17 15:06:54,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:54,810 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states.
[2020-12-17 15:06:54,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-12-17 15:06:54,812 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 15:06:54,813 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 15:06:54,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-12-17 15:06:54,813 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 15:06:54,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 15:06:54,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1543968972, now seen corresponding path program 1 times
[2020-12-17 15:06:54,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 15:06:54,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098489395]
[2020-12-17 15:06:54,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 15:06:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 15:06:54,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 15:06:54,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098489395]
[2020-12-17 15:06:54,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 15:06:54,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-12-17 15:06:54,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936034576]
[2020-12-17 15:06:54,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-12-17 15:06:54,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 15:06:54,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-12-17 15:06:54,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-17 15:06:54,874 INFO L87 Difference]: Start difference. First operand 550 states. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:55,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 15:06:55,023 INFO L93 Difference]: Finished difference Result 572 states and 1391 transitions.
[2020-12-17 15:06:55,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-12-17 15:06:55,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 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 41
[2020-12-17 15:06:55,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 15:06:55,030 INFO L225 Difference]: With dead ends: 572
[2020-12-17 15:06:55,030 INFO L226 Difference]: Without dead ends: 572
[2020-12-17 15:06:55,031 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-17 15:06:55,031 INFO L78 Accepts]: Start accepts. Automaton has 572 states. Word has length 41
[2020-12-17 15:06:55,032 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 15:06:55,032 INFO L481 AbstractCegarLoop]: Abstraction has 572 states.
[2020-12-17 15:06:55,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:55,032 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states.
[2020-12-17 15:06:55,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-12-17 15:06:55,034 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 15:06:55,035 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 15:06:55,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-12-17 15:06:55,035 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 15:06:55,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 15:06:55,036 INFO L82 PathProgramCache]: Analyzing trace with hash 24608808, now seen corresponding path program 1 times
[2020-12-17 15:06:55,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 15:06:55,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791955559]
[2020-12-17 15:06:55,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 15:06:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 15:06:55,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 15:06:55,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791955559]
[2020-12-17 15:06:55,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 15:06:55,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-12-17 15:06:55,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606747716]
[2020-12-17 15:06:55,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-12-17 15:06:55,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 15:06:55,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-12-17 15:06:55,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-17 15:06:55,091 INFO L87 Difference]: Start difference. First operand 572 states. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:55,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 15:06:55,192 INFO L93 Difference]: Finished difference Result 564 states and 1349 transitions.
[2020-12-17 15:06:55,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-12-17 15:06:55,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 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 41
[2020-12-17 15:06:55,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 15:06:55,196 INFO L225 Difference]: With dead ends: 564
[2020-12-17 15:06:55,197 INFO L226 Difference]: Without dead ends: 564
[2020-12-17 15:06:55,197 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-17 15:06:55,197 INFO L78 Accepts]: Start accepts. Automaton has 564 states. Word has length 41
[2020-12-17 15:06:55,197 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 15:06:55,198 INFO L481 AbstractCegarLoop]: Abstraction has 564 states.
[2020-12-17 15:06:55,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:55,198 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states.
[2020-12-17 15:06:55,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-12-17 15:06:55,199 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 15:06:55,200 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 15:06:55,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-12-17 15:06:55,200 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 15:06:55,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 15:06:55,201 INFO L82 PathProgramCache]: Analyzing trace with hash -297439550, now seen corresponding path program 2 times
[2020-12-17 15:06:55,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 15:06:55,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173046311]
[2020-12-17 15:06:55,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 15:06:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 15:06:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 15:06:55,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173046311]
[2020-12-17 15:06:55,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 15:06:55,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-12-17 15:06:55,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867798932]
[2020-12-17 15:06:55,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-12-17 15:06:55,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 15:06:55,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-12-17 15:06:55,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-17 15:06:55,266 INFO L87 Difference]: Start difference. First operand 564 states. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:55,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 15:06:55,350 INFO L93 Difference]: Finished difference Result 452 states and 1059 transitions.
[2020-12-17 15:06:55,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-12-17 15:06:55,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 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 41
[2020-12-17 15:06:55,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 15:06:55,352 INFO L225 Difference]: With dead ends: 452
[2020-12-17 15:06:55,352 INFO L226 Difference]: Without dead ends: 0
[2020-12-17 15:06:55,352 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-17 15:06:55,352 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 41
[2020-12-17 15:06:55,353 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 15:06:55,353 INFO L481 AbstractCegarLoop]: Abstraction has 0 states.
[2020-12-17 15:06:55,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 15:06:55,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states.
[2020-12-17 15:06:55,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-12-17 15:06:55,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-12-17 15:06:55,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:06:55 BasicIcfg
[2020-12-17 15:06:55,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-12-17 15:06:55,362 INFO L168 Benchmark]: Toolchain (without parser) took 3206.11 ms. Allocated memory is still 302.0 MB. Free memory was 277.1 MB in the beginning and 176.9 MB in the end (delta: 100.2 MB). Peak memory consumption was 99.5 MB. Max. memory is 16.0 GB.
[2020-12-17 15:06:55,363 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB.
[2020-12-17 15:06:55,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 786.76 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 248.6 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB.
[2020-12-17 15:06:55,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.57 ms. Allocated memory is still 302.0 MB. Free memory was 248.6 MB in the beginning and 246.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2020-12-17 15:06:55,365 INFO L168 Benchmark]: Boogie Preprocessor took 32.42 ms. Allocated memory is still 302.0 MB. Free memory was 246.6 MB in the beginning and 245.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB.
[2020-12-17 15:06:55,366 INFO L168 Benchmark]: RCFGBuilder took 737.98 ms. Allocated memory is still 302.0 MB. Free memory was 245.1 MB in the beginning and 263.9 MB in the end (delta: -18.8 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB.
[2020-12-17 15:06:55,367 INFO L168 Benchmark]: TraceAbstraction took 1557.41 ms. Allocated memory is still 302.0 MB. Free memory was 263.9 MB in the beginning and 176.9 MB in the end (delta: 87.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 16.0 GB.
[2020-12-17 15:06:55,371 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.79 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB.
* CACSL2BoogieTranslator took 786.76 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 248.6 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB.
* Boogie Procedure Inliner took 82.57 ms. Allocated memory is still 302.0 MB. Free memory was 248.6 MB in the beginning and 246.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
* Boogie Preprocessor took 32.42 ms. Allocated memory is still 302.0 MB. Free memory was 246.6 MB in the beginning and 245.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB.
* RCFGBuilder took 737.98 ms. Allocated memory is still 302.0 MB. Free memory was 245.1 MB in the beginning and 263.9 MB in the end (delta: -18.8 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB.
* TraceAbstraction took 1557.41 ms. Allocated memory is still 302.0 MB. Free memory was 263.9 MB in the beginning and 176.9 MB in the end (delta: 87.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 16.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
2 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 71 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 484 SDtfs, 164 SDslu, 222 SDs, 0 SdLazy, 76 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=774occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 9175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...