/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/safe020_pso.opt.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.0-aa1e80b
[2020-12-17 17:16:37,523 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-12-17 17:16:37,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-12-17 17:16:37,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-12-17 17:16:37,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-12-17 17:16:37,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-12-17 17:16:37,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-12-17 17:16:37,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-12-17 17:16:37,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-12-17 17:16:37,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-12-17 17:16:37,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-12-17 17:16:37,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-12-17 17:16:37,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-12-17 17:16:37,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-12-17 17:16:37,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-12-17 17:16:37,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-12-17 17:16:37,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-12-17 17:16:37,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-12-17 17:16:37,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-12-17 17:16:37,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-12-17 17:16:37,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-12-17 17:16:37,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-12-17 17:16:37,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-12-17 17:16:37,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-12-17 17:16:37,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-12-17 17:16:37,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-12-17 17:16:37,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-12-17 17:16:37,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-12-17 17:16:37,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-12-17 17:16:37,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-12-17 17:16:37,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-12-17 17:16:37,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2020-12-17 17:16:37,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-12-17 17:16:37,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-12-17 17:16:37,671 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 17:16:37,706 INFO L113 SettingsManager]: Loading preferences was successful
[2020-12-17 17:16:37,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-12-17 17:16:37,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-12-17 17:16:37,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-12-17 17:16:37,709 INFO L138 SettingsManager]: * Use SBE=true
[2020-12-17 17:16:37,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-12-17 17:16:37,709 INFO L138 SettingsManager]: * sizeof long=4
[2020-12-17 17:16:37,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-12-17 17:16:37,710 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-12-17 17:16:37,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-12-17 17:16:37,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-12-17 17:16:37,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-12-17 17:16:37,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-12-17 17:16:37,711 INFO L138 SettingsManager]: * sizeof long double=12
[2020-12-17 17:16:37,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-12-17 17:16:37,711 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-12-17 17:16:37,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-12-17 17:16:37,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-12-17 17:16:37,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-12-17 17:16:37,712 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-12-17 17:16:37,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-12-17 17:16:37,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-12-17 17:16:37,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-12-17 17:16:37,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-12-17 17:16:37,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-12-17 17:16:37,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-12-17 17:16:37,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-12-17 17:16:37,714 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2020-12-17 17:16:37,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-12-17 17:16:37,714 INFO L138 SettingsManager]: * Minimization of abstraction=NONE
[2020-12-17 17:16:37,714 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-12-17 17:16:38,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-12-17 17:16:38,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-12-17 17:16:38,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-12-17 17:16:38,118 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-12-17 17:16:38,118 INFO L275 PluginConnector]: CDTParser initialized
[2020-12-17 17:16:38,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i
[2020-12-17 17:16:38,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d627528e/c517c36d92884cc88ea4d0a6e3943f79/FLAG6b057a2e0
[2020-12-17 17:16:39,016 INFO L306 CDTParser]: Found 1 translation units.
[2020-12-17 17:16:39,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i
[2020-12-17 17:16:39,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d627528e/c517c36d92884cc88ea4d0a6e3943f79/FLAG6b057a2e0
[2020-12-17 17:16:39,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d627528e/c517c36d92884cc88ea4d0a6e3943f79
[2020-12-17 17:16:39,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-12-17 17:16:39,249 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-12-17 17:16:39,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-12-17 17:16:39,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-12-17 17:16:39,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-12-17 17:16:39,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:16:39" (1/1) ...
[2020-12-17 17:16:39,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794aa9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:39, skipping insertion in model container
[2020-12-17 17:16:39,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:16:39" (1/1) ...
[2020-12-17 17:16:39,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-12-17 17:16:39,349 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-12-17 17:16:39,784 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-12-17 17:16:39,802 INFO L203 MainTranslator]: Completed pre-run
[2020-12-17 17:16:39,884 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-12-17 17:16:40,000 INFO L208 MainTranslator]: Completed translation
[2020-12-17 17:16:40,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:40 WrapperNode
[2020-12-17 17:16:40,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-12-17 17:16:40,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-12-17 17:16:40,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-12-17 17:16:40,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-12-17 17:16:40,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:40" (1/1) ...
[2020-12-17 17:16:40,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:40" (1/1) ...
[2020-12-17 17:16:40,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-12-17 17:16:40,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-12-17 17:16:40,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-12-17 17:16:40,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-12-17 17:16:40,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:40" (1/1) ...
[2020-12-17 17:16:40,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:40" (1/1) ...
[2020-12-17 17:16:40,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:40" (1/1) ...
[2020-12-17 17:16:40,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:40" (1/1) ...
[2020-12-17 17:16:40,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:40" (1/1) ...
[2020-12-17 17:16:40,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:40" (1/1) ...
[2020-12-17 17:16:40,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:40" (1/1) ...
[2020-12-17 17:16:40,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-12-17 17:16:40,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-12-17 17:16:40,094 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-12-17 17:16:40,094 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-12-17 17:16:40,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:40" (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 17:16:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-12-17 17:16:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-12-17 17:16:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-12-17 17:16:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-12-17 17:16:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-12-17 17:16:40,232 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-12-17 17:16:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-12-17 17:16:40,232 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-12-17 17:16:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-12-17 17:16:40,233 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-12-17 17:16:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-12-17 17:16:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-12-17 17:16:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-12-17 17:16:40,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-12-17 17:16:40,235 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 17:16:40,790 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-12-17 17:16:40,791 INFO L298 CfgBuilder]: Removed 10 assume(true) statements.
[2020-12-17 17:16:40,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:16:40 BoogieIcfgContainer
[2020-12-17 17:16:40,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-12-17 17:16:40,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-12-17 17:16:40,799 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-12-17 17:16:40,803 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-12-17 17:16:40,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 05:16:39" (1/3) ...
[2020-12-17 17:16:40,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26abc4cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:16:40, skipping insertion in model container
[2020-12-17 17:16:40,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:16:40" (2/3) ...
[2020-12-17 17:16:40,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26abc4cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:16:40, skipping insertion in model container
[2020-12-17 17:16:40,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:16:40" (3/3) ...
[2020-12-17 17:16:40,808 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt.i
[2020-12-17 17:16:40,827 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-12-17 17:16:40,828 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-12-17 17:16:40,832 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-12-17 17:16:40,833 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-12-17 17:16:40,887 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,888 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,888 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,888 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,888 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,889 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,889 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,891 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,892 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,892 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,893 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,893 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,894 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,895 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,895 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,896 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,897 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,898 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,898 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,898 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,899 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,899 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,900 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,901 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,904 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,904 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,905 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,905 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,913 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,914 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,919 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,919 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,920 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,920 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:16:40,923 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-12-17 17:16:40,939 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-12-17 17:16:40,979 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-12-17 17:16:40,979 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-12-17 17:16:40,979 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-12-17 17:16:40,980 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-12-17 17:16:40,980 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-12-17 17:16:40,980 INFO L382 AbstractCegarLoop]: Difference is false
[2020-12-17 17:16:40,980 INFO L383 AbstractCegarLoop]: Minimize is NONE
[2020-12-17 17:16:40,980 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-12-17 17:16:40,999 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 77 transitions, 169 flow
[2020-12-17 17:16:41,899 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8447 states, 8445 states have (on average 3.5896980461811725) internal successors, (30315), 8446 states have internal predecessors, (30315), 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 17:16:41,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 8447 states, 8445 states have (on average 3.5896980461811725) internal successors, (30315), 8446 states have internal predecessors, (30315), 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 17:16:42,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-12-17 17:16:42,013 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:16:42,014 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 17:16:42,014 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:16:42,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:16:42,021 INFO L82 PathProgramCache]: Analyzing trace with hash -736353114, now seen corresponding path program 1 times
[2020-12-17 17:16:42,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:16:42,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283776448]
[2020-12-17 17:16:42,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:16:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:16:42,507 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 17:16:42,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283776448]
[2020-12-17 17:16:42,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:16:42,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-12-17 17:16:42,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328762345]
[2020-12-17 17:16:42,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-12-17 17:16:42,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:16:42,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-12-17 17:16:42,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-12-17 17:16:42,560 INFO L87 Difference]: Start difference. First operand has 8447 states, 8445 states have (on average 3.5896980461811725) internal successors, (30315), 8446 states have internal predecessors, (30315), 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 6.833333333333333) internal successors, (41), 6 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 17:16:42,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:16:42,960 INFO L93 Difference]: Finished difference Result 10463 states and 36159 transitions.
[2020-12-17 17:16:42,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-12-17 17:16:42,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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 17:16:42,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:16:43,033 INFO L225 Difference]: With dead ends: 10463
[2020-12-17 17:16:43,033 INFO L226 Difference]: Without dead ends: 3953
[2020-12-17 17:16:43,036 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 17:16:43,037 INFO L78 Accepts]: Start accepts. Automaton has 3953 states. Word has length 41
[2020-12-17 17:16:43,038 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:16:43,039 INFO L481 AbstractCegarLoop]: Abstraction has 3953 states.
[2020-12-17 17:16:43,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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 17:16:43,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3953 states.
[2020-12-17 17:16:43,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-12-17 17:16:43,057 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:16:43,058 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]
[2020-12-17 17:16:43,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-12-17 17:16:43,059 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:16:43,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:16:43,060 INFO L82 PathProgramCache]: Analyzing trace with hash 2028391175, now seen corresponding path program 1 times
[2020-12-17 17:16:43,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:16:43,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49159206]
[2020-12-17 17:16:43,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:16:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:16:43,273 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 17:16:43,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49159206]
[2020-12-17 17:16:43,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:16:43,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-12-17 17:16:43,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808567673]
[2020-12-17 17:16:43,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-12-17 17:16:43,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:16:43,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-12-17 17:16:43,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-12-17 17:16:43,278 INFO L87 Difference]: Start difference. First operand 3953 states. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 17:16:43,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:16:43,472 INFO L93 Difference]: Finished difference Result 4697 states and 15760 transitions.
[2020-12-17 17:16:43,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-12-17 17:16:43,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 43
[2020-12-17 17:16:43,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:16:43,505 INFO L225 Difference]: With dead ends: 4697
[2020-12-17 17:16:43,505 INFO L226 Difference]: Without dead ends: 3857
[2020-12-17 17:16:43,506 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 17:16:43,506 INFO L78 Accepts]: Start accepts. Automaton has 3857 states. Word has length 43
[2020-12-17 17:16:43,507 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:16:43,507 INFO L481 AbstractCegarLoop]: Abstraction has 3857 states.
[2020-12-17 17:16:43,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 17:16:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3857 states.
[2020-12-17 17:16:43,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-12-17 17:16:43,520 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:16:43,520 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]
[2020-12-17 17:16:43,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-12-17 17:16:43,521 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:16:43,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:16:43,522 INFO L82 PathProgramCache]: Analyzing trace with hash 565402146, now seen corresponding path program 1 times
[2020-12-17 17:16:43,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:16:43,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415914144]
[2020-12-17 17:16:43,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:16:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:16:43,909 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 17:16:43,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415914144]
[2020-12-17 17:16:43,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:16:43,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:16:43,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910535429]
[2020-12-17 17:16:43,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:16:43,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:16:43,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:16:43,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:16:43,919 INFO L87 Difference]: Start difference. First operand 3857 states. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 17:16:44,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:16:44,201 INFO L93 Difference]: Finished difference Result 5101 states and 17053 transitions.
[2020-12-17 17:16:44,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-12-17 17:16:44,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44
[2020-12-17 17:16:44,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:16:44,226 INFO L225 Difference]: With dead ends: 5101
[2020-12-17 17:16:44,226 INFO L226 Difference]: Without dead ends: 2839
[2020-12-17 17:16:44,228 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182
[2020-12-17 17:16:44,228 INFO L78 Accepts]: Start accepts. Automaton has 2839 states. Word has length 44
[2020-12-17 17:16:44,229 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:16:44,229 INFO L481 AbstractCegarLoop]: Abstraction has 2839 states.
[2020-12-17 17:16:44,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 17:16:44,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2839 states.
[2020-12-17 17:16:44,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2020-12-17 17:16:44,241 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:16:44,241 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]
[2020-12-17 17:16:44,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-12-17 17:16:44,243 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:16:44,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:16:44,245 INFO L82 PathProgramCache]: Analyzing trace with hash -676376959, now seen corresponding path program 1 times
[2020-12-17 17:16:44,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:16:44,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200486302]
[2020-12-17 17:16:44,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:16:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:16:44,419 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 17:16:44,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200486302]
[2020-12-17 17:16:44,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:16:44,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-12-17 17:16:44,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040349674]
[2020-12-17 17:16:44,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-12-17 17:16:44,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:16:44,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-12-17 17:16:44,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-12-17 17:16:44,422 INFO L87 Difference]: Start difference. First operand 2839 states. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 17:16:44,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:16:44,602 INFO L93 Difference]: Finished difference Result 4551 states and 14670 transitions.
[2020-12-17 17:16:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-12-17 17:16:44,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46
[2020-12-17 17:16:44,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:16:44,630 INFO L225 Difference]: With dead ends: 4551
[2020-12-17 17:16:44,630 INFO L226 Difference]: Without dead ends: 3223
[2020-12-17 17:16:44,630 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 17:16:44,631 INFO L78 Accepts]: Start accepts. Automaton has 3223 states. Word has length 46
[2020-12-17 17:16:44,631 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:16:44,631 INFO L481 AbstractCegarLoop]: Abstraction has 3223 states.
[2020-12-17 17:16:44,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 17:16:44,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states.
[2020-12-17 17:16:44,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-12-17 17:16:44,641 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:16:44,641 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 17:16:44,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-12-17 17:16:44,641 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:16:44,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:16:44,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1519714679, now seen corresponding path program 1 times
[2020-12-17 17:16:44,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:16:44,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043301723]
[2020-12-17 17:16:44,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:16:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:16:44,755 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 17:16:44,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043301723]
[2020-12-17 17:16:44,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:16:44,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-12-17 17:16:44,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158015386]
[2020-12-17 17:16:44,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-12-17 17:16:44,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:16:44,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-12-17 17:16:44,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-12-17 17:16:44,758 INFO L87 Difference]: Start difference. First operand 3223 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 17:16:44,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:16:44,918 INFO L93 Difference]: Finished difference Result 3863 states and 12152 transitions.
[2020-12-17 17:16:44,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-12-17 17:16:44,919 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 17:16:44,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:16:44,937 INFO L225 Difference]: With dead ends: 3863
[2020-12-17 17:16:44,937 INFO L226 Difference]: Without dead ends: 2967
[2020-12-17 17:16:44,938 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 17:16:44,938 INFO L78 Accepts]: Start accepts. Automaton has 2967 states. Word has length 47
[2020-12-17 17:16:44,938 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:16:44,938 INFO L481 AbstractCegarLoop]: Abstraction has 2967 states.
[2020-12-17 17:16:44,938 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 17:16:44,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states.
[2020-12-17 17:16:44,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2020-12-17 17:16:44,947 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:16:44,947 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 17:16:44,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-12-17 17:16:44,948 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:16:44,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:16:44,948 INFO L82 PathProgramCache]: Analyzing trace with hash 2042804477, now seen corresponding path program 1 times
[2020-12-17 17:16:44,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:16:44,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963751746]
[2020-12-17 17:16:44,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:16:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:16:45,117 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 17:16:45,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963751746]
[2020-12-17 17:16:45,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:16:45,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:16:45,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106837902]
[2020-12-17 17:16:45,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:16:45,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:16:45,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:16:45,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:16:45,121 INFO L87 Difference]: Start difference. First operand 2967 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 17:16:45,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:16:45,313 INFO L93 Difference]: Finished difference Result 2835 states and 8647 transitions.
[2020-12-17 17:16:45,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-12-17 17:16:45,314 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 17:16:45,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:16:45,324 INFO L225 Difference]: With dead ends: 2835
[2020-12-17 17:16:45,324 INFO L226 Difference]: Without dead ends: 2067
[2020-12-17 17:16:45,324 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2020-12-17 17:16:45,325 INFO L78 Accepts]: Start accepts. Automaton has 2067 states. Word has length 48
[2020-12-17 17:16:45,325 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:16:45,325 INFO L481 AbstractCegarLoop]: Abstraction has 2067 states.
[2020-12-17 17:16:45,325 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 17:16:45,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states.
[2020-12-17 17:16:45,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2020-12-17 17:16:45,332 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:16:45,332 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 17:16:45,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-12-17 17:16:45,332 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:16:45,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:16:45,333 INFO L82 PathProgramCache]: Analyzing trace with hash -207995556, now seen corresponding path program 1 times
[2020-12-17 17:16:45,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:16:45,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661573804]
[2020-12-17 17:16:45,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:16:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:16:45,463 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 17:16:45,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661573804]
[2020-12-17 17:16:45,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:16:45,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-12-17 17:16:45,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649773503]
[2020-12-17 17:16:45,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-12-17 17:16:45,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:16:45,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-12-17 17:16:45,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-12-17 17:16:45,466 INFO L87 Difference]: Start difference. First operand 2067 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 17:16:45,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:16:45,679 INFO L93 Difference]: Finished difference Result 1446 states and 4199 transitions.
[2020-12-17 17:16:45,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-12-17 17:16:45,680 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 17:16:45,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:16:45,684 INFO L225 Difference]: With dead ends: 1446
[2020-12-17 17:16:45,684 INFO L226 Difference]: Without dead ends: 714
[2020-12-17 17:16:45,685 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 17:16:45,685 INFO L78 Accepts]: Start accepts. Automaton has 714 states. Word has length 50
[2020-12-17 17:16:45,685 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:16:45,686 INFO L481 AbstractCegarLoop]: Abstraction has 714 states.
[2020-12-17 17:16:45,686 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 17:16:45,686 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states.
[2020-12-17 17:16:45,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-12-17 17:16:45,689 INFO L496 BasicCegarLoop]: Found error trace
[2020-12-17 17:16:45,689 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]
[2020-12-17 17:16:45,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-12-17 17:16:45,690 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:16:45,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:16:45,690 INFO L82 PathProgramCache]: Analyzing trace with hash 848095813, now seen corresponding path program 1 times
[2020-12-17 17:16:45,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:16:45,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956612443]
[2020-12-17 17:16:45,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:16:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:16:45,863 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 17:16:45,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956612443]
[2020-12-17 17:16:45,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:16:45,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:16:45,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519369613]
[2020-12-17 17:16:45,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:16:45,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:16:45,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:16:45,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:16:45,865 INFO L87 Difference]: Start difference. First operand 714 states. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 17:16:46,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:16:46,120 INFO L93 Difference]: Finished difference Result 606 states and 1684 transitions.
[2020-12-17 17:16:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-12-17 17:16:46,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52
[2020-12-17 17:16:46,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:16:46,121 INFO L225 Difference]: With dead ends: 606
[2020-12-17 17:16:46,121 INFO L226 Difference]: Without dead ends: 0
[2020-12-17 17:16:46,122 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:16:46,122 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 52
[2020-12-17 17:16:46,122 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:16:46,122 INFO L481 AbstractCegarLoop]: Abstraction has 0 states.
[2020-12-17 17:16:46,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 17:16:46,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states.
[2020-12-17 17:16:46,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-12-17 17:16:46,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-12-17 17:16:46,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 05:16:46 BasicIcfg
[2020-12-17 17:16:46,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-12-17 17:16:46,139 INFO L168 Benchmark]: Toolchain (without parser) took 6883.05 ms. Allocated memory was 306.2 MB in the beginning and 618.7 MB in the end (delta: 312.5 MB). Free memory was 281.8 MB in the beginning and 507.7 MB in the end (delta: -226.0 MB). Peak memory consumption was 89.9 MB. Max. memory is 16.0 GB.
[2020-12-17 17:16:46,140 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 306.2 MB. Free memory is still 276.6 MB. There was no memory consumed. Max. memory is 16.0 GB.
[2020-12-17 17:16:46,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.49 ms. Allocated memory is still 306.2 MB. Free memory was 281.5 MB in the beginning and 250.8 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB.
[2020-12-17 17:16:46,142 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.83 ms. Allocated memory is still 306.2 MB. Free memory was 250.8 MB in the beginning and 249.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2020-12-17 17:16:46,143 INFO L168 Benchmark]: Boogie Preprocessor took 28.81 ms. Allocated memory is still 306.2 MB. Free memory was 249.0 MB in the beginning and 247.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB.
[2020-12-17 17:16:46,143 INFO L168 Benchmark]: RCFGBuilder took 701.50 ms. Allocated memory is still 306.2 MB. Free memory was 247.4 MB in the beginning and 266.0 MB in the end (delta: -18.6 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB.
[2020-12-17 17:16:46,147 INFO L168 Benchmark]: TraceAbstraction took 5331.25 ms. Allocated memory was 306.2 MB in the beginning and 618.7 MB in the end (delta: 312.5 MB). Free memory was 266.0 MB in the beginning and 507.7 MB in the end (delta: -241.7 MB). Peak memory consumption was 74.9 MB. Max. memory is 16.0 GB.
[2020-12-17 17:16:46,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.80 ms. Allocated memory is still 306.2 MB. Free memory is still 276.6 MB. There was no memory consumed. Max. memory is 16.0 GB.
* CACSL2BoogieTranslator took 749.49 ms. Allocated memory is still 306.2 MB. Free memory was 281.5 MB in the beginning and 250.8 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB.
* Boogie Procedure Inliner took 59.83 ms. Allocated memory is still 306.2 MB. Free memory was 250.8 MB in the beginning and 249.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
* Boogie Preprocessor took 28.81 ms. Allocated memory is still 306.2 MB. Free memory was 249.0 MB in the beginning and 247.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB.
* RCFGBuilder took 701.50 ms. Allocated memory is still 306.2 MB. Free memory was 247.4 MB in the beginning and 266.0 MB in the end (delta: -18.6 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB.
* TraceAbstraction took 5331.25 ms. Allocated memory was 306.2 MB in the beginning and 618.7 MB in the end (delta: 312.5 MB). Free memory was 266.0 MB in the beginning and 507.7 MB in the end (delta: -241.7 MB). Peak memory consumption was 74.9 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, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 736 SDtfs, 1072 SDslu, 2364 SDs, 0 SdLazy, 303 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8447occurred 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, 1.3s InterpolantComputationTime, 371 NumberOfCodeBlocks, 371 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 363 ConstructedInterpolants, 0 QuantifiedInterpolants, 43187 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...