/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-wmm/safe035_rmo.oepc.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.0-aa1e80b
[2020-12-17 17:21:56,167 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-12-17 17:21:56,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-12-17 17:21:56,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-12-17 17:21:56,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-12-17 17:21:56,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-12-17 17:21:56,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-12-17 17:21:56,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-12-17 17:21:56,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-12-17 17:21:56,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-12-17 17:21:56,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-12-17 17:21:56,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-12-17 17:21:56,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-12-17 17:21:56,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-12-17 17:21:56,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-12-17 17:21:56,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-12-17 17:21:56,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-12-17 17:21:56,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-12-17 17:21:56,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-12-17 17:21:56,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-12-17 17:21:56,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-12-17 17:21:56,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-12-17 17:21:56,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-12-17 17:21:56,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-12-17 17:21:56,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-12-17 17:21:56,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-12-17 17:21:56,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-12-17 17:21:56,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-12-17 17:21:56,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-12-17 17:21:56,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-12-17 17:21:56,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-12-17 17:21:56,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-12-17 17:21:56,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-12-17 17:21:56,327 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 17:21:56,383 INFO L113 SettingsManager]: Loading preferences was successful
[2020-12-17 17:21:56,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-12-17 17:21:56,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-12-17 17:21:56,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-12-17 17:21:56,389 INFO L138 SettingsManager]: * Use SBE=true
[2020-12-17 17:21:56,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-12-17 17:21:56,389 INFO L138 SettingsManager]: * sizeof long=4
[2020-12-17 17:21:56,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-12-17 17:21:56,390 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-12-17 17:21:56,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-12-17 17:21:56,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-12-17 17:21:56,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-12-17 17:21:56,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-12-17 17:21:56,393 INFO L138 SettingsManager]: * sizeof long double=12
[2020-12-17 17:21:56,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-12-17 17:21:56,393 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-12-17 17:21:56,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-12-17 17:21:56,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-12-17 17:21:56,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-12-17 17:21:56,394 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-12-17 17:21:56,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-12-17 17:21:56,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-12-17 17:21:56,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-12-17 17:21:56,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-12-17 17:21:56,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-12-17 17:21:56,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-12-17 17:21:56,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-12-17 17:21:56,397 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2020-12-17 17:21:56,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-12-17 17:21:56,397 INFO L138 SettingsManager]: * Minimization of abstraction=NONE
[2020-12-17 17:21:56,398 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-12-17 17:21:56,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-12-17 17:21:56,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-12-17 17:21:56,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-12-17 17:21:56,898 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-12-17 17:21:56,899 INFO L275 PluginConnector]: CDTParser initialized
[2020-12-17 17:21:56,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i
[2020-12-17 17:21:56,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f567f9d75/2649424064c14257a129c485fb30d44d/FLAGff2360eb9
[2020-12-17 17:21:57,800 INFO L306 CDTParser]: Found 1 translation units.
[2020-12-17 17:21:57,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.oepc.i
[2020-12-17 17:21:57,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f567f9d75/2649424064c14257a129c485fb30d44d/FLAGff2360eb9
[2020-12-17 17:21:58,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f567f9d75/2649424064c14257a129c485fb30d44d
[2020-12-17 17:21:58,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-12-17 17:21:58,075 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-12-17 17:21:58,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-12-17 17:21:58,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-12-17 17:21:58,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-12-17 17:21:58,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:21:58" (1/1) ...
[2020-12-17 17:21:58,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e7c92ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58, skipping insertion in model container
[2020-12-17 17:21:58,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:21:58" (1/1) ...
[2020-12-17 17:21:58,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-12-17 17:21:58,169 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-12-17 17:21:58,718 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-12-17 17:21:58,735 INFO L203 MainTranslator]: Completed pre-run
[2020-12-17 17:21:58,827 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-12-17 17:21:58,951 INFO L208 MainTranslator]: Completed translation
[2020-12-17 17:21:58,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58 WrapperNode
[2020-12-17 17:21:58,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-12-17 17:21:58,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-12-17 17:21:58,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-12-17 17:21:58,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-12-17 17:21:58,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58" (1/1) ...
[2020-12-17 17:21:59,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58" (1/1) ...
[2020-12-17 17:21:59,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-12-17 17:21:59,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-12-17 17:21:59,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-12-17 17:21:59,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-12-17 17:21:59,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58" (1/1) ...
[2020-12-17 17:21:59,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58" (1/1) ...
[2020-12-17 17:21:59,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58" (1/1) ...
[2020-12-17 17:21:59,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58" (1/1) ...
[2020-12-17 17:21:59,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58" (1/1) ...
[2020-12-17 17:21:59,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58" (1/1) ...
[2020-12-17 17:21:59,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58" (1/1) ...
[2020-12-17 17:21:59,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-12-17 17:21:59,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-12-17 17:21:59,147 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-12-17 17:21:59,147 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-12-17 17:21:59,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58" (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 17:21:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-12-17 17:21:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-12-17 17:21:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-12-17 17:21:59,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-12-17 17:21:59,243 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-12-17 17:21:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-12-17 17:21:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-12-17 17:21:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-12-17 17:21:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-12-17 17:21:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-12-17 17:21:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-12-17 17:21:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-12-17 17:21:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-12-17 17:21:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-12-17 17:21:59,247 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 17:21:59,734 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-12-17 17:21:59,734 INFO L298 CfgBuilder]: Removed 10 assume(true) statements.
[2020-12-17 17:21:59,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:21:59 BoogieIcfgContainer
[2020-12-17 17:21:59,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-12-17 17:21:59,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-12-17 17:21:59,739 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-12-17 17:21:59,742 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-12-17 17:21:59,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 05:21:58" (1/3) ...
[2020-12-17 17:21:59,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b127e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:21:59, skipping insertion in model container
[2020-12-17 17:21:59,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:21:58" (2/3) ...
[2020-12-17 17:21:59,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b127e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:21:59, skipping insertion in model container
[2020-12-17 17:21:59,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:21:59" (3/3) ...
[2020-12-17 17:21:59,746 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_rmo.oepc.i
[2020-12-17 17:21:59,762 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-12-17 17:21:59,762 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-12-17 17:21:59,766 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-12-17 17:21:59,767 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-12-17 17:21:59,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,798 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,798 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,798 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,798 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,798 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,799 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,799 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,799 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,800 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,800 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,801 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,801 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,801 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,801 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,801 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,801 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,803 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,803 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,803 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,803 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,804 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,804 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,804 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,804 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,805 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,805 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,805 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,805 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,808 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,808 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,826 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:21:59,833 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-12-17 17:21:59,846 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-12-17 17:21:59,870 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-12-17 17:21:59,870 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-12-17 17:21:59,870 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-12-17 17:21:59,870 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-12-17 17:21:59,870 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-12-17 17:21:59,870 INFO L382 AbstractCegarLoop]: Difference is false
[2020-12-17 17:21:59,871 INFO L383 AbstractCegarLoop]: Minimize is NONE
[2020-12-17 17:21:59,871 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-12-17 17:21:59,883 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow
[2020-12-17 17:22:00,755 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 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 17:22:00,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 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 17:22:00,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2020-12-17 17:22:00,856 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:22:00,857 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, 1]
[2020-12-17 17:22:00,857 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:00,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:00,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1266406659, now seen corresponding path program 1 times
[2020-12-17 17:22:00,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:00,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649267240]
[2020-12-17 17:22:00,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:01,477 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 17:22:01,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649267240]
[2020-12-17 17:22:01,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:01,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-12-17 17:22:01,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855616812]
[2020-12-17 17:22:01,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-12-17 17:22:01,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:01,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-12-17 17:22:01,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-12-17 17:22:01,541 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 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 17:22:01,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:01,906 INFO L93 Difference]: Finished difference Result 11318 states and 39237 transitions.
[2020-12-17 17:22:01,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-12-17 17:22:01,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 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 42
[2020-12-17 17:22:01,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:01,968 INFO L225 Difference]: With dead ends: 11318
[2020-12-17 17:22:01,968 INFO L226 Difference]: Without dead ends: 4213
[2020-12-17 17:22:01,970 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:22:01,970 INFO L78 Accepts]: Start accepts. Automaton has 4213 states. Word has length 42
[2020-12-17 17:22:01,972 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:01,973 INFO L481 AbstractCegarLoop]: Abstraction has 4213 states.
[2020-12-17 17:22:01,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 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 17:22:01,973 INFO L276 IsEmpty]: Start isEmpty. Operand 4213 states.
[2020-12-17 17:22:01,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-12-17 17:22:01,990 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:22:01,990 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, 1, 1, 1, 1]
[2020-12-17 17:22:01,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-12-17 17:22:01,991 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:01,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:01,992 INFO L82 PathProgramCache]: Analyzing trace with hash 429548758, now seen corresponding path program 1 times
[2020-12-17 17:22:01,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:01,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025343840]
[2020-12-17 17:22:01,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:02,193 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 17:22:02,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025343840]
[2020-12-17 17:22:02,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:02,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-12-17 17:22:02,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652107991]
[2020-12-17 17:22:02,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-12-17 17:22:02,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:02,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-12-17 17:22:02,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-12-17 17:22:02,198 INFO L87 Difference]: Start difference. First operand 4213 states. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 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 17:22:02,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:02,570 INFO L93 Difference]: Finished difference Result 6334 states and 21196 transitions.
[2020-12-17 17:22:02,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-12-17 17:22:02,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 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 45
[2020-12-17 17:22:02,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:02,598 INFO L225 Difference]: With dead ends: 6334
[2020-12-17 17:22:02,599 INFO L226 Difference]: Without dead ends: 3115
[2020-12-17 17:22:02,600 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:22:02,600 INFO L78 Accepts]: Start accepts. Automaton has 3115 states. Word has length 45
[2020-12-17 17:22:02,602 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:02,602 INFO L481 AbstractCegarLoop]: Abstraction has 3115 states.
[2020-12-17 17:22:02,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 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 17:22:02,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states.
[2020-12-17 17:22:02,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-12-17 17:22:02,614 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:22:02,614 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, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:22:02,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-12-17 17:22:02,614 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:02,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:02,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1422766975, now seen corresponding path program 1 times
[2020-12-17 17:22:02,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:02,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135800487]
[2020-12-17 17:22:02,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:02,791 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 17:22:02,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135800487]
[2020-12-17 17:22:02,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:02,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-12-17 17:22:02,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160799219]
[2020-12-17 17:22:02,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-12-17 17:22:02,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:02,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-12-17 17:22:02,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-12-17 17:22:02,794 INFO L87 Difference]: Start difference. First operand 3115 states. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 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 17:22:02,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:02,996 INFO L93 Difference]: Finished difference Result 3903 states and 12811 transitions.
[2020-12-17 17:22:02,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-12-17 17:22:02,996 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 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 47
[2020-12-17 17:22:02,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:03,022 INFO L225 Difference]: With dead ends: 3903
[2020-12-17 17:22:03,022 INFO L226 Difference]: Without dead ends: 2811
[2020-12-17 17:22:03,023 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:22:03,023 INFO L78 Accepts]: Start accepts. Automaton has 2811 states. Word has length 47
[2020-12-17 17:22:03,023 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:03,023 INFO L481 AbstractCegarLoop]: Abstraction has 2811 states.
[2020-12-17 17:22:03,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 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 17:22:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states.
[2020-12-17 17:22:03,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2020-12-17 17:22:03,033 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:22:03,033 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:22:03,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-12-17 17:22:03,033 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:03,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:03,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1775856222, now seen corresponding path program 1 times
[2020-12-17 17:22:03,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:03,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808145606]
[2020-12-17 17:22:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:03,274 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 17:22:03,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808145606]
[2020-12-17 17:22:03,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:03,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:22:03,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207509629]
[2020-12-17 17:22:03,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:22:03,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:03,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:22:03,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:22:03,277 INFO L87 Difference]: Start difference. First operand 2811 states. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 17:22:03,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:03,483 INFO L93 Difference]: Finished difference Result 2835 states and 9001 transitions.
[2020-12-17 17:22:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-12-17 17:22:03,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 48
[2020-12-17 17:22:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:03,500 INFO L225 Difference]: With dead ends: 2835
[2020-12-17 17:22:03,500 INFO L226 Difference]: Without dead ends: 1935
[2020-12-17 17:22:03,501 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2020-12-17 17:22:03,501 INFO L78 Accepts]: Start accepts. Automaton has 1935 states. Word has length 48
[2020-12-17 17:22:03,502 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:03,502 INFO L481 AbstractCegarLoop]: Abstraction has 1935 states.
[2020-12-17 17:22:03,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 17:22:03,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states.
[2020-12-17 17:22:03,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2020-12-17 17:22:03,508 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:22:03,509 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:22:03,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-12-17 17:22:03,509 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:03,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:03,510 INFO L82 PathProgramCache]: Analyzing trace with hash -2020113217, now seen corresponding path program 1 times
[2020-12-17 17:22:03,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:03,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967805306]
[2020-12-17 17:22:03,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:03,648 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 17:22:03,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967805306]
[2020-12-17 17:22:03,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:03,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-12-17 17:22:03,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805925492]
[2020-12-17 17:22:03,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-12-17 17:22:03,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:03,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-12-17 17:22:03,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-12-17 17:22:03,651 INFO L87 Difference]: Start difference. First operand 1935 states. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 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 17:22:03,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:03,899 INFO L93 Difference]: Finished difference Result 1449 states and 4351 transitions.
[2020-12-17 17:22:03,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-12-17 17:22:03,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 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 50
[2020-12-17 17:22:03,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:03,908 INFO L225 Difference]: With dead ends: 1449
[2020-12-17 17:22:03,908 INFO L226 Difference]: Without dead ends: 981
[2020-12-17 17:22:03,908 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2020-12-17 17:22:03,909 INFO L78 Accepts]: Start accepts. Automaton has 981 states. Word has length 50
[2020-12-17 17:22:03,909 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:03,910 INFO L481 AbstractCegarLoop]: Abstraction has 981 states.
[2020-12-17 17:22:03,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 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 17:22:03,915 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states.
[2020-12-17 17:22:03,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-12-17 17:22:03,920 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:22:03,928 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:22:03,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-12-17 17:22:03,929 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:03,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:03,929 INFO L82 PathProgramCache]: Analyzing trace with hash -54775455, now seen corresponding path program 1 times
[2020-12-17 17:22:03,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:03,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168380517]
[2020-12-17 17:22:03,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:04,109 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 17:22:04,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168380517]
[2020-12-17 17:22:04,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:04,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:22:04,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047195017]
[2020-12-17 17:22:04,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:22:04,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:04,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:22:04,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:22:04,114 INFO L87 Difference]: Start difference. First operand 981 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:22:04,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:04,264 INFO L93 Difference]: Finished difference Result 1424 states and 4153 transitions.
[2020-12-17 17:22:04,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-12-17 17:22:04,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54
[2020-12-17 17:22:04,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:04,272 INFO L225 Difference]: With dead ends: 1424
[2020-12-17 17:22:04,272 INFO L226 Difference]: Without dead ends: 831
[2020-12-17 17:22:04,272 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:22:04,273 INFO L78 Accepts]: Start accepts. Automaton has 831 states. Word has length 54
[2020-12-17 17:22:04,273 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:04,273 INFO L481 AbstractCegarLoop]: Abstraction has 831 states.
[2020-12-17 17:22:04,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:22:04,274 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states.
[2020-12-17 17:22:04,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-12-17 17:22:04,278 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:22:04,278 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:22:04,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-12-17 17:22:04,278 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:04,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1436109045, now seen corresponding path program 2 times
[2020-12-17 17:22:04,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:04,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730750087]
[2020-12-17 17:22:04,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:04,393 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 17:22:04,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730750087]
[2020-12-17 17:22:04,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:04,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:22:04,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261864609]
[2020-12-17 17:22:04,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:22:04,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:04,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:22:04,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:22:04,396 INFO L87 Difference]: Start difference. First operand 831 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:22:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:04,539 INFO L93 Difference]: Finished difference Result 1354 states and 3902 transitions.
[2020-12-17 17:22:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-12-17 17:22:04,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54
[2020-12-17 17:22:04,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:04,552 INFO L225 Difference]: With dead ends: 1354
[2020-12-17 17:22:04,552 INFO L226 Difference]: Without dead ends: 771
[2020-12-17 17:22:04,552 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:22:04,552 INFO L78 Accepts]: Start accepts. Automaton has 771 states. Word has length 54
[2020-12-17 17:22:04,553 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:04,553 INFO L481 AbstractCegarLoop]: Abstraction has 771 states.
[2020-12-17 17:22:04,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:22:04,553 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states.
[2020-12-17 17:22:04,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-12-17 17:22:04,557 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:22:04,557 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:22:04,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-12-17 17:22:04,557 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:04,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:04,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1423150337, now seen corresponding path program 3 times
[2020-12-17 17:22:04,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:04,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024820010]
[2020-12-17 17:22:04,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:04,712 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 17:22:04,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024820010]
[2020-12-17 17:22:04,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:04,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:22:04,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019358163]
[2020-12-17 17:22:04,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:22:04,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:04,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:22:04,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:22:04,715 INFO L87 Difference]: Start difference. First operand 771 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:22:04,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:04,819 INFO L93 Difference]: Finished difference Result 663 states and 1855 transitions.
[2020-12-17 17:22:04,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-12-17 17:22:04,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54
[2020-12-17 17:22:04,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:04,820 INFO L225 Difference]: With dead ends: 663
[2020-12-17 17:22:04,820 INFO L226 Difference]: Without dead ends: 0
[2020-12-17 17:22:04,820 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:22:04,821 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 54
[2020-12-17 17:22:04,821 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:04,821 INFO L481 AbstractCegarLoop]: Abstraction has 0 states.
[2020-12-17 17:22:04,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:22:04,821 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states.
[2020-12-17 17:22:04,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-12-17 17:22:04,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-12-17 17:22:04,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 05:22:04 BasicIcfg
[2020-12-17 17:22:04,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-12-17 17:22:04,830 INFO L168 Benchmark]: Toolchain (without parser) took 6754.30 ms. Allocated memory was 302.0 MB in the beginning and 673.2 MB in the end (delta: 371.2 MB). Free memory was 277.4 MB in the beginning and 483.5 MB in the end (delta: -206.1 MB). Peak memory consumption was 166.4 MB. Max. memory is 16.0 GB.
[2020-12-17 17:22:04,831 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB.
[2020-12-17 17:22:04,832 INFO L168 Benchmark]: CACSL2BoogieTranslator took 875.27 ms. Allocated memory is still 302.0 MB. Free memory was 277.2 MB in the beginning and 245.7 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB.
[2020-12-17 17:22:04,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.08 ms. Allocated memory is still 302.0 MB. Free memory was 245.7 MB in the beginning and 283.5 MB in the end (delta: -37.9 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB.
[2020-12-17 17:22:04,833 INFO L168 Benchmark]: Boogie Preprocessor took 60.91 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 282.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB.
[2020-12-17 17:22:04,834 INFO L168 Benchmark]: RCFGBuilder took 590.52 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 259.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB.
[2020-12-17 17:22:04,835 INFO L168 Benchmark]: TraceAbstraction took 5089.01 ms. Allocated memory was 302.0 MB in the beginning and 673.2 MB in the end (delta: 371.2 MB). Free memory was 259.4 MB in the beginning and 483.5 MB in the end (delta: -224.1 MB). Peak memory consumption was 149.2 MB. Max. memory is 16.0 GB.
[2020-12-17 17:22:04,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.72 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB.
* CACSL2BoogieTranslator took 875.27 ms. Allocated memory is still 302.0 MB. Free memory was 277.2 MB in the beginning and 245.7 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB.
* Boogie Procedure Inliner took 128.08 ms. Allocated memory is still 302.0 MB. Free memory was 245.7 MB in the beginning and 283.5 MB in the end (delta: -37.9 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB.
* Boogie Preprocessor took 60.91 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 282.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB.
* RCFGBuilder took 590.52 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 259.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB.
* TraceAbstraction took 5089.01 ms. Allocated memory was 302.0 MB in the beginning and 673.2 MB in the end (delta: 371.2 MB). Free memory was 259.4 MB in the beginning and 483.5 MB in the end (delta: -224.1 MB). Peak memory consumption was 149.2 MB. Max. memory is 16.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 747 SDtfs, 970 SDslu, 2501 SDs, 0 SdLazy, 310 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 386 ConstructedInterpolants, 0 QuantifiedInterpolants, 45628 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...